diff options
Diffstat (limited to 'aarch64/share/doc/hadoop')
| -rw-r--r-- | aarch64/share/doc/hadoop/common/CHANGES.txt | 13861 | ||||
| -rw-r--r-- | aarch64/share/doc/hadoop/common/LICENSE.txt | 284 | ||||
| -rw-r--r-- | aarch64/share/doc/hadoop/common/NOTICE.txt | 2 | ||||
| -rw-r--r-- | aarch64/share/doc/hadoop/common/README.txt | 31 | ||||
| -rw-r--r-- | aarch64/share/doc/hadoop/hdfs/CHANGES.txt | 6945 | ||||
| -rw-r--r-- | aarch64/share/doc/hadoop/hdfs/LICENSE.txt | 271 | ||||
| -rw-r--r-- | aarch64/share/doc/hadoop/hdfs/NOTICE.txt | 2 | ||||
| -rw-r--r-- | aarch64/share/doc/hadoop/mapreduce/CHANGES.txt | 6904 | ||||
| -rw-r--r-- | aarch64/share/doc/hadoop/mapreduce/LICENSE.txt | 244 | ||||
| -rw-r--r-- | aarch64/share/doc/hadoop/mapreduce/NOTICE.txt | 2 | ||||
| -rw-r--r-- | aarch64/share/doc/hadoop/yarn/CHANGES.txt | 1698 | ||||
| -rw-r--r-- | aarch64/share/doc/hadoop/yarn/LICENSE.txt | 244 | ||||
| -rw-r--r-- | aarch64/share/doc/hadoop/yarn/NOTICE.txt | 2 |
13 files changed, 30490 insertions, 0 deletions
diff --git a/aarch64/share/doc/hadoop/common/CHANGES.txt b/aarch64/share/doc/hadoop/common/CHANGES.txt new file mode 100644 index 0000000..6fefb12 --- /dev/null +++ b/aarch64/share/doc/hadoop/common/CHANGES.txt @@ -0,0 +1,13861 @@ +Hadoop Change Log + +Release 2.2.0 - 2013-10-13 + + INCOMPATIBLE CHANGES + + HADOOP-10020. Disable symlinks temporarily (branch-2.1-beta only change) + (sanjay via suresh) + + NEW FEATURES + + HDFS-4817. Make HDFS advisory caching configurable on a per-file basis. + (Contributed by Colin Patrick McCabe) + + IMPROVEMENTS + + HADOOP-9948. Add a config value to CLITestHelper to skip tests on Windows. + (Chuan Liu via cnauroth) + + HADOOP-9976. Different versions of avro and avro-maven-plugin (Karthik + Kambatla via Sandy Ryza) + + HADOOP-9758. Provide configuration option for FileSystem/FileContext + symlink resolution (Andrew Wang via Colin Patrick McCabe) + + HADOOP-8315. Support SASL-authenticated ZooKeeper in ActiveStandbyElector + (todd) + + OPTIMIZATIONS + + BUG FIXES + + HADOOP-9776. HarFileSystem.listStatus() returns invalid authority if port + number is empty. (Shanyu Zhao via ivanmi) + + HADOOP-9761. ViewFileSystem#rename fails when using DistributedFileSystem. + (Andrew Wang via Colin Patrick McCabe) + + HADOOP-10003. HarFileSystem.listLocatedStatus() fails. + (Jason Dere and suresh via suresh) + + HADOOP-10017. Fix NPE in DFSClient#getDelegationToken when doing Distcp + from a secured cluster to an insecured cluster. (Haohui Mai via jing9) + +Release 2.1.1-beta - 2013-09-23 + + INCOMPATIBLE CHANGES + + HADOOP-9944. Fix RpcRequestHeaderProto.callId to be sint32 rather than + uint32 since ipc.Client.CONNECTION_CONTEXT_CALL_ID is signed (i.e. -3) + (acmurthy) + + NEW FEATURES + + IMPROVEMENTS + + HADOOP-9910. proxy server start and stop documentation wrong + (Andre Kelpe via harsh) + + HADOOP-9787. ShutdownHelper util to shutdown threads and threadpools. + (Karthik Kambatla via Sandy Ryza) + + HADOOP-9803. Add a generic type parameter to RetryInvocationHandler. + (szetszwo) + + HADOOP-9821. ClientId should have getMsb/getLsb methods. + (Tsuyoshi OZAWA via jing9) + + HADOOP-9435. Support building the JNI code against the IBM JVM. + (Tian Hong Wang via Colin Patrick McCabe) + + HADOOP-9355. Abstract symlink tests to use either FileContext or + FileSystem. (Andrew Wang via Colin Patrick McCabe) + + HADOOP-9833 move slf4j to version 1.7.5 (Kousuke Saruta via stevel) + + HADOOP-9672. Upgrade Avro dependency to 1.7.4. (sandy via kihwal) + + HADOOP-8814. Replace string equals "" by String#isEmpty(). + (Brandon Li via suresh) + + HADOOP-9789. Support server advertised kerberos principals (daryn) + + HADOOP-9802. Support Snappy codec on Windows. (cnauroth) + + HADOOP-9879. Move the version info of zookeeper dependencies to + hadoop-project/pom (Karthik Kambatla via Sandy Ryza) + + HADOOP-9886. Turn warning message in RetryInvocationHandler to debug (arpit) + + HADOOP-9906. Move HAZKUtil to o.a.h.util.ZKUtil and make inner-classes + public (Karthik Kambatla via Sandy Ryza) + + HADOOP-9918. Add addIfService to CompositeService (Karthik Kambatla via + Sandy Ryza) + + HADOOP-9945. HAServiceState should have a state for stopped services. + (Karthik Kambatla via atm) + + HADOOP-9962. in order to avoid dependency divergence within Hadoop itself + lets enable DependencyConvergence. (rvs via tucu) + + HADOOP-9487 Deprecation warnings in Configuration should go to their + own log or otherwise be suppressible (Chu Tong via stevel) + + HADOOP-9669. Reduce the number of byte array creations and copies in + XDR data manipulation. (Haohui Mai via brandonli) + + OPTIMIZATIONS + + BUG FIXES + + HADOOP-9916. Fix race in ipc.Client retry. (Binglin Chang via llu) + + HADOOP-9768. chown and chgrp reject users and groups with spaces on platforms + where spaces are otherwise acceptable. (cnauroth) + + HADOOP-9801. Configuration#writeXml uses platform defaulting encoding, which + may mishandle multi-byte characters. (cnauroth) + + HADOOP-9806 PortmapInterface should check if the procedure is out-of-range + (brandonli) + + HADOOP-9315. Port HADOOP-9249 hadoop-maven-plugins Clover fix to branch-2 to + fix build failures. (Dennis Y via cnauroth) + + HADOOP-9831. Make checknative shell command accessible on Windows. (cnauroth) + + HADOOP-9675. use svn:eol-style native for html to prevent line ending + issues (Colin Patrick McCabe) + + HADOOP-9757. Har metadata cache can grow without limit (Cristina Abad via daryn) + + HADOOP-9858. Remove unused private RawLocalFileSystem#execCommand method from + branch-2. (cnauroth) + + HADOOP-9857. Tests block and sometimes timeout on Windows due to invalid + entropy source. (cnauroth) + + HADOOP-9527. Add symlink support to LocalFileSystem on Windows. + (Arpit Agarwal) + + HADOOP-9381. Document dfs cp -f option. (Keegan Witt, suresh via suresh) + + HADOOP-9868. Server must not advertise kerberos realm. (daryn via kihwal) + + HADOOP-9880. SASL changes from HADOOP-9421 breaks Secure HA NN. (daryn via + jing9) + + HADOOP-9899. Remove the debug message, added by HADOOP-8855, from + KerberosAuthenticator. (szetszwo) + + HADOOP-9894. Race condition in Shell leads to logged error stream handling + exceptions (Arpit Agarwal) + + HADOOP-9774. RawLocalFileSystem.listStatus() return absolute paths when + input path is relative on Windows. (Shanyu Zhao via ivanmi) + + HADOOP-9924. FileUtil.createJarWithClassPath() does not generate relative + classpath correctly. (Shanyu Zhao via ivanmi) + + HADOOP-9932. Improper synchronization in RetryCache. (kihwal) + + HADOOP-9958. Add old constructor back to DelegationTokenInformation to + unbreak downstream builds. (Andrew Wang) + + HADOOP-9960. Upgrade Jersey version to 1.9. (Karthik Kambatla via atm) + + HADOOP-9557. hadoop-client excludes commons-httpclient. (Lohit Vijayarenu via + cnauroth) + + HADOOP-9350. Hadoop not building against Java7 on OSX + (Robert Kanter via stevel) + + HADOOP-9961. versions of a few transitive dependencies diverged between hadoop + subprojects. (rvs via tucu) + + HADOOP-9977. Hadoop services won't start with different keypass and + keystorepass when https is enabled. (cnauroth) + +Release 2.1.0-beta - 2013-08-22 + + INCOMPATIBLE CHANGES + + HADOOP-8886. Remove KFS support. (eli) + + HADOOP-9163. [RPC v9] The rpc msg in ProtobufRpcEngine.proto should be moved out to + avoid an extra copy (Sanjay Radia) + + HADOOP-9151. [RPC v9] Include RPC error info in RpcResponseHeader instead of sending + it separately (sanjay Radia) + + HADOOP-9380. [RPC v9] Add totalLength to rpc response (sanjay Radia) + + HADOOP-9425. [RPC v9] Add error codes to rpc-response (sanjay Radia) + + HADOOP-9194. [RPC v9] RPC support for QoS. (Junping Du via llu) + + HADOOP-9630. [RPC v9] Remove IpcSerializationType. (Junping Du via llu) + + HADOOP-9421. [RPC v9] Convert SASL to use ProtoBuf and provide + negotiation capabilities (daryn) + + HADOOP-9688. Add globally unique Client ID to RPC requests. (suresh) + + HADOOP-9683. [RPC v9] Wrap IpcConnectionContext in RPC headers (daryn) + + HADOOP-9698. [RPC v9] Client must honor server's SASL negotiate response (daryn) + + HADOOP-9832. [RPC v9] Add RPC header to client ping (daryn) + + HADOOP-9820. [RPC v9] Wire protocol is insufficient to support multiplexing. (daryn via jitendra) + + NEW FEATURES + + HADOOP-9283. Add support for running the Hadoop client on AIX. (atm) + + HADOOP-8415. Add getDouble() and setDouble() in + org.apache.hadoop.conf.Configuration (Jan van der Lugt via harsh) + + HADOOP-9338. FsShell Copy Commands Should Optionally Preserve File + Attributes. (Nick White via atm) + + HADOOP-8562. Enhancements to support Hadoop on Windows Server and Windows + Azure environments. (See breakdown of tasks below for subtasks and + contributors) + + HADOOP-8469. Make NetworkTopology class pluggable. (Junping Du via + szetszwo) + + HADOOP-8470. Add NetworkTopologyWithNodeGroup, a 4-layer implementation + of NetworkTopology. (Junping Du via szetszwo) + + HADOOP-9763. Extends LightWeightGSet to support eviction of expired + elements. (Tsz Wo (Nicholas) SZE via jing9) + + HADOOP-9762. RetryCache utility for implementing RPC retries. + (Suresh Srinivas via jing9) + + HADOOP-9792. Retry the methods that are tagged @AtMostOnce along + with @Idempotent. (suresh) + + HADOOP-9509. Implement ONCRPC and XDR. (brandonli) + + HADOOP-9515. Add general interface for NFS and Mount. (brandonli) + + IMPROVEMENTS + + HADOOP-9164. Print paths of loaded native libraries in + NativeLibraryChecker. (Binglin Chang via llu) + + HADOOP-9253. Capture ulimit info in the logs at service start time. + (Arpit Gupta via suresh) + + HADOOP-8924. Add maven plugin alternative to shell script to save + package-info.java. (Chris Nauroth via suresh) + + HADOOP-9117. replace protoc ant plugin exec with a maven plugin. (tucu) + + HADOOP-9279. Document the need to build hadoop-maven-plugins for + eclipse and separate project builds. (Tsuyoshi Ozawa via suresh) + + HADOOP-9334. Upgrade netty version. (Nicolas Liochon via suresh) + + HADOOP-9343. Allow additional exceptions through the RPC layer. (sseth) + + HADOOP-9318. When exiting on a signal, print the signal name first. (Colin + Patrick McCabe via atm) + + HADOOP-9358. "Auth failed" log should include exception string (todd) + + HADOOP-9401. CodecPool: Add counters for number of (de)compressors + leased out. (kkambatl via tucu) + + HADOOP-9450. HADOOP_USER_CLASSPATH_FIRST is not honored; CLASSPATH + is PREpended instead of APpended. (Chris Nauroth and harsh via harsh) + + HADOOP-9496. Bad merge of HADOOP-9450 on branch-2 breaks all bin/hadoop + calls that need HADOOP_CLASSPATH. (harsh) + + HADOOP-9503. Remove sleep between IPC client connect timeouts. + (Varun Sharma via szetszwo) + + HADOOP-9322. LdapGroupsMapping doesn't seem to set a timeout for + its directory search. (harsh) + + HADOOP-9523. Provide a generic IBM java vendor flag in PlatformName.java + to support non-Sun JREs. (Tian Hong Wang via suresh) + + HADOOP-9511. Adding support for additional input streams (FSDataInputStream + and RandomAccessFile) in SecureIOUtils so as to help YARN-578. (Omkar Vinit + Joshi via vinodkv) + + HADOOP-9560. metrics2#JvmMetrics should have max memory size of JVM. + (Tsuyoshi Ozawa via suresh) + + HADOOP-9140 Cleanup rpc PB protos (sanjay Radia) + + HADOOP-9218 Document the Rpc-wrappers used internally (sanjay Radia) + + HADOOP-9574. Added new methods in AbstractDelegationTokenSecretManager for + helping YARN ResourceManager to reuse code for RM restart. (Jian He via + vinodkv) + + HADOOP-7391 Document Interface Classification from HADOOP-5073 (sanjay Radia) + + HADOOP-9287. Parallel-testing hadoop-common (Andrey Klochkov via jlowe) + + HADOOP-9604. Javadoc of FSDataOutputStream is slightly inaccurate. (Jingguo + Yao via atm) + + HADOOP-9625. HADOOP_OPTS not picked up by hadoop command. + (Paul Han via arpit) + + HADOOP-9649. Promoted YARN service life-cycle libraries into Hadoop Common + for usage across all Hadoop projects. (Zhijie Shen via vinodkv) + + HADOOP-9517. Documented various aspects of compatibility for Apache + Hadoop. (Karthik Kambatla via acmurthy) + + HADOOP-8608. Add Configuration API for parsing time durations. (cdouglas) + + HADOOP-9619 Mark stability of .proto files (sanjay Radia) + + HADOOP-9676. Make maximum RPC buffer size configurable (Colin Patrick + McCabe) + + HADOOP-9691. RPC clients can generate call ID using AtomicInteger instead of + synchronizing on the Client instance. (cnauroth) + + HADOOP-9661. Allow metrics sources to be extended. (sandyr via tucu) + + HADOOP-9370. Write FSWrapper class to wrap FileSystem and FileContext for + better test coverage. (Andrew Wang via Colin Patrick McCabe) + + HADOOP-9673. NetworkTopology: when a node can't be added, print out its + location for diagnostic purposes. (Colin Patrick McCabe) + + HADOOP-9414. Refactor out FSLinkResolver and relevant helper methods. + (Andrew Wang via Colin Patrick McCabe) + + HADOOP-9416. Add new symlink resolution methods in FileSystem and + FileSystemLinkResolver. (Andrew Wang via Colin Patrick McCabe) + + HADOOP-9720. Rename Client#uuid to Client#clientId. (Arpit Agarwal via + suresh) + + HADOOP-9734. Common protobuf definitions for GetUserMappingsProtocol, + RefreshAuthorizationPolicyProtocol and RefreshUserMappingsProtocol (jlowe) + + HADOOP-9716. Rpc retries should use the same call ID as the original call. + (szetszwo) + + HADOOP-9717. Add retry attempt count to the RPC requests. (jing9) + + HADOOP-9751. Add clientId and retryCount to RpcResponseHeaderProto. + (szetszwo) + + HADOOP-9754. Remove unnecessary "throws IOException/InterruptedException", + and fix generic and other javac warnings. (szetszwo) + + HADOOP-9760. Move GSet and related classes to common from HDFS. + (suresh) + + HADOOP-9756. Remove the deprecated getServer(..) methods from RPC. + (Junping Du via szetszwo) + + HADOOP-9770. Make RetryCache#state non volatile. (suresh) + + HADOOP-9786. RetryInvocationHandler#isRpcInvocation should support + ProtocolTranslator. (suresh and jing9) + + OPTIMIZATIONS + + HADOOP-9150. Avoid unnecessary DNS resolution attempts for logical URIs + (todd) + + HADOOP-9845. Update protobuf to 2.5 from 2.4.x. (tucu) + + HADOOP-9872. Improve protoc version handling and detection. (tucu) + + BUG FIXES + + HADOOP-9451. Fault single-layer config if node group topology is enabled. + (Junping Du via llu) + + HADOOP-9294. GetGroupsTestBase fails on Windows. (Chris Nauroth via suresh) + + HADOOP-9305. Add support for running the Hadoop client on 64-bit AIX. (atm) + + HADOOP-9245. mvn clean without running mvn install before fails. + (Karthik Kambatla via suresh) + + HADOOP-9246 Execution phase for hadoop-maven-plugin should be + process-resources (Karthik Kambatla and Chris Nauroth via jlowe) + + HADOOP-9297. remove old record IO generation and tests. (tucu) + + HADOOP-9154. SortedMapWritable#putAll() doesn't add key/value classes to + the map. (Karthik Kambatla via tomwhite) + + HADOOP-9304. remove addition of avro genreated-sources dirs to build. (tucu) + + HADOOP-9267. hadoop -help, -h, --help should show usage instructions. + (Andrew Wang via atm) + + HADOOP-8569. CMakeLists.txt: define _GNU_SOURCE and _LARGEFILE_SOURCE. + (Colin Patrick McCabe via atm) + + HADOOP-9323. Fix typos in API documentation. (suresh) + + HADOOP-7487. DF should throw a more reasonable exception when mount cannot + be determined. (Andrew Wang via atm) + + HADOOP-8917. add LOCALE.US to toLowerCase in SecurityUtil.replacePattern. + (Arpit Gupta via suresh) + + HADOOP-9342. Remove jline from distribution. (thw via tucu) + + HADOOP-9230. TestUniformSizeInputFormat fails intermittently. + (kkambatl via tucu) + + HADOOP-9349. Confusing output when running hadoop version from one hadoop + installation when HADOOP_HOME points to another. (sandyr via tucu) + + HADOOP-9337. org.apache.hadoop.fs.DF.getMount() does not work on Mac OS. + (Ivan A. Veselovsky via atm) + + HADOOP-9369. DNS#reverseDns() can return hostname with . appended at the + end. (Karthik Kambatla via atm) + + HADOOP-9379. capture the ulimit info after printing the log to the + console. (Arpit Gupta via suresh) + + HADOOP-9399. protoc maven plugin doesn't work on mvn 3.0.2 (todd) + + HADOOP-9407. commons-daemon 1.0.3 dependency has bad group id causing + build issues. (Sangjin Lee via suresh) + + HADOOP-9405. TestGridmixSummary#testExecutionSummarizer is broken. (Andrew + Wang via atm) + + HADOOP-9430. TestSSLFactory fails on IBM JVM. (Amir Sanjar via suresh) + + HADOOP-9125. LdapGroupsMapping threw CommunicationException after some + idle time. (Kai Zheng via atm) + + HADOOP-9429. TestConfiguration fails with IBM JAVA. (Amir Sanjar via + suresh) + + HADOOP-9222. Cover package with org.apache.hadoop.io.lz4 unit tests (Vadim + Bondarev via jlowe) + + HADOOP-9233. Cover package org.apache.hadoop.io.compress.zlib with unit + tests (Vadim Bondarev via jlowe) + + HADOOP-9211. Set default max heap size in HADOOP_CLIENT_OPTS to 512m + in order to avoid OOME. (Plamen Jeliazkov via shv) + + HADOOP-9473. Typo in FileUtil copy() method. (Glen Mazza via suresh) + + HADOOP-9504. MetricsDynamicMBeanBase has concurrency issues in + createMBeanInfo (Liang Xie via jlowe) + + HADOOP-9455. HADOOP_CLIENT_OPTS appended twice causes JVM failures. + (Chris Nauroth via suresh) + + HADOOP-9550. Remove aspectj dependency. (kkambatl via tucu) + + HADOOP-9549. WebHdfsFileSystem hangs on close(). (daryn via kihwal) + + HADOOP-9485. No default value in the code for + hadoop.rpc.socket.factory.class.default. (Colin Patrick McCabe via atm) + + HADOOP-9459. ActiveStandbyElector can join election even before + Service HEALTHY, and results in null data at ActiveBreadCrumb. + (Vinay and todd via todd) + + HADOOP-9307. BufferedFSInputStream.read returns wrong results + after certain seeks. (todd) + + HADOOP-9220. Unnecessary transition to standby in ActiveStandbyElector. + (tom and todd via todd) + + HADOOP-9563. Fix incompatibility introduced by HADOOP-9523. + (Tian Hong Wang via suresh) + + HADOOP-9566. Performing direct read using libhdfs sometimes raises SIGPIPE + (which in turn throws SIGABRT) causing client crashes. (Colin Patrick + McCabe via atm) + + HADOOP-9481. Broken conditional logic with HADOOP_SNAPPY_LIBRARY. (Vadim + Bondarev via atm) + + HADOOP-9593. stack trace printed at ERROR for all yarn clients without + hadoop.home set (stevel) + + HADOOP-8957. AbstractFileSystem#IsValidName should be overridden for + embedded file systems like ViewFs (Chris Nauroth via Sanjay Radia) + + HADOOP-9607. Fixes in Javadoc build (Timothy St. Clair via cos) + + HADOOP-9605. Update junit dependency. (Timothy St. Clair via cos) + + HADOOP-9581. hadoop --config non-existent directory should result in error + (Ashwin Shankar via jlowe) + + HADOOP-9638. Parallel test changes caused invalid test path for several HDFS + tests on Windows (Andrey Klochkov via cnauroth) + + HADOOP-9632. TestShellCommandFencer will fail if there is a 'host' machine in + the network. (Chuan Liu via cnauroth) + + HADOOP-9624. TestFSMainOperationsLocalFileSystem failed when the Hadoop test + root path has "X" in its name. (Xi Fang via cnauroth) + + HADOOP-9439. JniBasedUnixGroupsMapping: fix some crash bugs. (Colin + Patrick McCabe) + + HADOOP-9656. Gridmix unit tests fail on Windows and Linux. (Chuan Liu via + cnauroth) + + HADOOP-9707. Fix register lists for crc32c inline assembly. (todd via + kihwal) + + HADOOP-9738. TestDistCh fails. (jing9 via kihwal) + + HADOOP-9759. Add support for NativeCodeLoader#getLibraryName on Windows. + (Chuan Liu via cnauroth) + + HADOOP-9773. TestLightWeightCache should not set size limit to zero when + testing it. (szetszwo) + + HADOOP-9507. LocalFileSystem rename() is broken in some cases when + destination exists. (cnauroth) + + HADOOP-9816. RPC Sasl QOP is broken (daryn) + + HADOOP-9850. RPC kerberos errors don't trigger relogin. (daryn via kihwal) + + BREAKDOWN OF HADOOP-8562 SUBTASKS AND RELATED JIRAS + + HADOOP-8924. Hadoop Common creating package-info.java must not depend on + sh. (Chris Nauroth via suresh) + + HADOOP-8945. Merge winutils from branch-1-win to branch-trunk-win. + (Bikas Saha, Chuan Liu, Giridharan Kesavan, Ivan Mitic, and Steve Maine + ported by Chris Nauroth via suresh) + + HADOOP-8946. winutils: compile codebase during Maven build on + branch-trunk-win. (Chris Nauroth via suresh) + + HADOOP-8947. Merge FileUtil and Shell changes from branch-1-win to + branch-trunk-win to enable initial test pass. (Raja Aluri, Davio Lao, + Sumadhur Reddy Bolli, Ahmed El Baz, Kanna Karanam, Chuan Liu, + Ivan Mitic, Chris Nauroth, and Bikas Saha via suresh) + + HADOOP-8954. "stat" executable not found on Windows. (Bikas Saha, Ivan Mitic + ported by Chris Narouth via suresh) + + HADOOP-8959. TestUserGroupInformation fails on Windows due to "id" executable + not found. (Bikas Saha, Ivan Mitic, ported by Chris Narouth via suresh) + + HADOOP-8955. "chmod" executable not found on Windows. + (Chris Nauroth via suresh) + + HADOOP-8960. TestMetricsServlet fails on Windows. (Ivan Mitic via suresh) + + HADOOP-8961. GenericOptionsParser URI parsing failure on Windows. + (Ivan Mitic via suresh) + + HADOOP-8949. Remove FileUtil.CygPathCommand dead code. (Chris Nauroth via + suresh) + + HADOOP-8956. FileSystem.primitiveMkdir failures on Windows cause multiple + test suites to fail. (Chris Nauroth via suresh) + + HADOOP-8978. TestTrash fails on Windows. (Chris Nauroth via suresh) + + HADOOP-8979. TestHttpServer fails on Windows. (Chris Nauroth via suresh) + + HADOOP-8953. Shell PathData parsing failures on Windows. (Arpit Agarwal via + suresh) + + HADOOP-8975. TestFileContextResolveAfs fails on Windows. (Chris Nauroth via + suresh) + + HADOOP-8977. Multiple FsShell test failures on Windows. (Chris Nauroth via + suresh) + + HADOOP-9005. Merge hadoop cmd line scripts from branch-1-win. (David Lao, + Bikas Saha, Lauren Yang, Chuan Liu, Thejas M Nair and Ivan Mitic via suresh) + + HADOOP-9008. Building hadoop tarball fails on Windows. (Chris Nauroth via + suresh) + + HADOOP-9011. saveVersion.py does not include branch in version annotation. + (Chris Nauroth via suresh) + + HADOOP-9110. winutils ls off-by-one error indexing MONTHS array can cause + access violation. (Chris Nauroth via suresh) + + HADOOP-9056. Build native library on Windows. (Chuan Liu, Arpit Agarwal via + suresh) + + HADOOP-9144. Fix findbugs warnings. (Chris Nauroth via suresh) + + HADOOP-9081. Add TestWinUtils. (Chuan Liu, Ivan Mitic, Chris Nauroth, + and Bikas Saha via suresh) + + HADOOP-9146. Fix sticky bit regression on branch-trunk-win. + (Chris Nauroth via suresh) + + HADOOP-9266. Fix javac, findbugs, and release audit warnings on + branch-trunk-win. (Chris Nauroth via suresh) + + HADOOP-9270. Remove a stale java comment from FileUtil. (Chris Nauroth via + szetszwo) + + HADOOP-9271. Revert Python build scripts from branch-trunk-win. + (Chris Nauroth via suresh) + + HADOOP-9313. Remove spurious mkdir from hadoop-config.cmd. + (Ivan Mitic via suresh) + + HADOOP-9309. Test failures on Windows due to UnsatisfiedLinkError + in NativeCodeLoader#buildSupportsSnappy. (Arpit Agarwal via suresh) + + HADOOP-9347. Add instructions to BUILDING.txt describing how to + build on Windows. (Chris Nauroth via suresh) + + HADOOP-9348. Address TODO in winutils to add more command line usage + and examples. (Chris Nauroth via suresh) + + HADOOP-9354. Windows native project files missing license headers. + (Chris Nauroth via suresh) + + HADOOP-9356. Remove remaining references to cygwin/cygpath from scripts. + (Chris Nauroth via suresh) + + HADOOP-9232. JniBasedUnixGroupsMappingWithFallback fails on Windows + with UnsatisfiedLinkError. (Ivan Mitic via suresh) + + HADOOP-9368. Add timeouts to new tests in branch-trunk-win. + (Arpit Agarwal via suresh) + + HADOOP-9373. Merge CHANGES.branch-trunk-win.txt to CHANGES.txt. + (suresh) + + HADOOP-9372. Fix bad timeout annotations on tests. + (Arpit Agarwal via suresh) + + HADOOP-9376. TestProxyUserFromEnv fails on a Windows domain joined machine. + (Ivan Mitic via suresh) + + HADOOP-9365. TestHAZKUtil fails on Windows. (Ivan Mitic via suresh) + + HADOOP-9364. PathData#expandAsGlob does not return correct results for + absolute paths on Windows. (Ivan Mitic via suresh) + + HADOOP-8973. DiskChecker cannot reliably detect an inaccessible disk on + Windows with NTFS ACLs. (Chris Nauroth via suresh) + + HADOOP-9388. TestFsShellCopy fails on Windows. (Ivan Mitic via suresh) + + HADOOP-9387. Fix DF so that it won't execute a shell command on Windows + to compute the file system/mount point. (Ivan Mitic via szetszwo) + + HADOOP-9353. Activate native-win maven profile by default on Windows. + (Arpit Agarwal via szetszwo) + + HADOOP-9437. TestNativeIO#testRenameTo fails on Windows due to assumption + that POSIX errno is embedded in NativeIOException. (Chris Nauroth via + suresh) + + HADOOP-9443. Port winutils static code analysis change to trunk. + (Chuan Liu via suresh) + + HADOOP-9290. Some tests cannot load native library on windows. + (Chris Nauroth via suresh) + + HADOOP-9500. TestUserGroupInformation#testGetServerSideGroups fails on + Windows due to failure to find winutils.exe. (Chris Nauroth via suresh) + + HADOOP-9490. LocalFileSystem#reportChecksumFailure not closing the + checksum file handle before rename. (Ivan Mitic via suresh) + + HADOOP-9524. Fix ShellCommandFencer to work on Windows. + (Arpit Agarwal via suresh) + + HADOOP-9413. Add common utils for File#setReadable/Writable/Executable & + File#canRead/Write/Execute that work cross-platform. (Ivan Mitic via suresh) + + HADOOP-9532. HADOOP_CLIENT_OPTS is appended twice by Windows cmd scripts. + (Chris Nauroth via suresh) + + HADOOP-9043. Disallow in winutils creating symlinks with forwards slashes. + (Chris Nauroth and Arpit Agarwal via suresh) + + HADOOP-9483. winutils support for readlink command. + (Arpit Agarwal via suresh) + + HADOOP-9488. FileUtil#createJarWithClassPath only substitutes environment + variables from current process environment/does not support overriding + when launching new process (Chris Nauroth via bikas) + + HADOOP-9556. disable HA tests on Windows that fail due to ZooKeeper client + connection management bug. (Chris Nauroth via suresh) + + HADOOP-9553. TestAuthenticationToken fails on Windows. + (Arpit Agarwal via suresh) + + HADOOP-9397. Incremental dist tar build fails. (Chris Nauroth via jlowe) + + HADOOP-9131. Turn off TestLocalFileSystem#testListStatusWithColons on + Windows. (Chris Nauroth via suresh) + + HADOOP-9526. TestShellCommandFencer and TestShell fail on Windows. + (Arpit Agarwal via suresh) + + HADOOP-8982. TestSocketIOWithTimeout fails on Windows. + (Chris Nauroth via suresh) + + HADOOP-8958. ViewFs:Non absolute mount name failures when running + multiple tests on Windows. (Chris Nauroth via suresh) + + HADOOP-9599. hadoop-config.cmd doesn't set JAVA_LIBRARY_PATH correctly. + (Mostafa Elhemali via ivanmi) + + HADOOP-9637. Adding Native Fstat for Windows as needed by YARN. (Chuan Liu + via cnauroth) + + HADOOP-9264. Port change to use Java untar API on Windows from + branch-1-win to trunk. (Chris Nauroth via suresh) + + HADOOP-9678. TestRPC#testStopsAllThreads intermittently fails on Windows. + (Ivan Mitic via cnauroth) + + HADOOP-9681. FileUtil.unTarUsingJava() should close the InputStream upon + finishing. (Chuan Liu via cnauroth) + + HADOOP-9665. Fixed BlockDecompressorStream#decompress to return -1 rather + than throw EOF at end of file. (Zhijie Shen via acmurthy) + + HADOOP-8440. HarFileSystem.decodeHarURI fails for URIs whose host contains + numbers. (Ivan Mitic via cnauroth) + + HADOOP-9643. org.apache.hadoop.security.SecurityUtil calls + toUpperCase(Locale.getDefault()) as well as toLowerCase(Locale.getDefault()) + on hadoop.security.authentication value. (markrmiller@gmail.com via tucu) + + HADOOP-9701. mvn site ambiguous links in hadoop-common. (kkambatl via tucu) + +Release 2.0.5-alpha - 06/06/2013 + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + OPTIMIZATIONS + + BUG FIXES + + HADOOP-9407. commons-daemon 1.0.3 dependency has bad group id causing + build issues. (Sangjin Lee via suresh) + +Release 2.0.4-alpha - 2013-04-25 + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + OPTIMIZATIONS + + BUG FIXES + + HADOOP-9467. Metrics2 record filter should check name as well as tags. + (Chris Nauroth and Ganeshan Iyler via llu) + + HADOOP-9406. hadoop-client leaks dependency on JDK tools jar. (tucu) + + HADOOP-9301. hadoop client servlet/jsp/jetty/tomcat JARs creating + conflicts in Oozie & HttpFS. (tucu) + + HADOOP-9299. kerberos name resolution is kicking in even when kerberos + is not configured (daryn) + + HADOOP-9408. misleading description for net.topology.table.file.name + property in core-default.xml. (rajeshbabu via suresh) + + HADOOP-9444. Modify hadoop-policy.xml to replace unexpanded variables to a + default value of '*'. (Roman Shaposhnik via vinodkv) + + HADOOP-9471. hadoop-client wrongfully excludes jetty-util JAR, + breaking webhdfs. (tucu) + +Release 2.0.3-alpha - 2013-02-06 + + INCOMPATIBLE CHANGES + + HADOOP-8999. SASL negotiation is flawed (daryn) + + NEW FEATURES + + HADOOP-8561. Introduce HADOOP_PROXY_USER for secure impersonation in child + hadoop client processes. (Yu Gao via llu) + + HADOOP-8597. Permit FsShell's text command to read Avro files. + (Ivan Vladimirov Ivanov via cutting) + + HADOOP-9020. Add a SASL PLAIN server (daryn via bobby) + + HADOOP-9090. Support on-demand publish of metrics. (Mostafa Elhemali via + suresh) + + HADOOP-9054. Add AuthenticationHandler that uses Kerberos but allows for + an alternate form of authentication for browsers. (rkanter via tucu) + + IMPROVEMENTS + + HADOOP-8789. Tests setLevel(Level.OFF) should be Level.ERROR. + (Andy Isaacson via eli) + + HADOOP-8755. Print thread dump when tests fail due to timeout. (Andrey + Klochkov via atm) + + HADOOP-8806. libhadoop.so: dlopen should be better at locating + libsnappy.so, etc. (Colin Patrick McCabe via eli) + + HADOOP-8812. ExitUtil#terminate should print Exception#toString. (eli) + + HADOOP-8736. Add Builder for building RPC server. (Brandon Li via Suresh) + + HDFS-3957. Change MutableQuantiles to use a shared thread for rolling + over metrics. (Andrew Wang via todd) + + HADOOP-8851. Use -XX:+HeapDumpOnOutOfMemoryError JVM option in the forked + tests. (Ivan A. Veselovsky via atm) + + HADOOP-8783. Improve RPC.Server's digest auth (daryn) + + HADOOP-8889. Upgrade to Surefire 2.12.3 (todd) + + HADOOP-8804. Improve Web UIs when the wildcard address is used. + (Senthil Kumar via eli) + + HADOOP-8894. GenericTestUtils.waitFor should dump thread stacks on timeout + (todd) + + HADOOP-8909. Hadoop Common Maven protoc calls must not depend on external + sh script. (Chris Nauroth via suresh) + + HADOOP-8911. CRLF characters in source and text files. + (Raja Aluri via suresh) + + HADOOP-8912. Add .gitattributes file to prevent CRLF and LF mismatches + for source and text files. (Raja Aluri via suresh) + + HADOOP-8784. Improve IPC.Client's token use (daryn) + + HADOOP-8929. Add toString, other improvements for SampleQuantiles (todd) + + HADOOP-8922. Provide alternate JSONP output for JMXJsonServlet to allow + javascript in browser (Damien Hardy via bobby) + + HADOOP-8931. Add Java version to startup message. (eli) + + HADOOP-8925. Remove the packaging. (eli) + + HADOOP-8985. Add namespace declarations in .proto files for languages + other than java. (Binglin Chan via suresh) + + HADOOP-9009. Add SecurityUtil methods to get/set authentication method + (daryn via bobby) + + HADOOP-9010. Map UGI authenticationMethod to RPC authMethod (daryn via + bobby) + + HADOOP-9013. UGI should not hardcode loginUser's authenticationType (daryn + via bobby) + + HADOOP-9014. Standardize creation of SaslRpcClients (daryn via bobby) + + HADOOP-9015. Standardize creation of SaslRpcServers (daryn via bobby) + + HADOOP-8860. Split MapReduce and YARN sections in documentation navigation. + (tomwhite via tucu) + + HADOOP-9021. Enforce configured SASL method on the server (daryn via + bobby) + + HADOO-8998. set Cache-Control no-cache header on all dynamic content. (tucu) + + HADOOP-9035. Generalize setup of LoginContext (daryn via bobby) + + HADOOP-9093. Move all the Exception in PathExceptions to o.a.h.fs package. + (suresh) + + HADOOP-9042. Add a test for umask in FileSystemContractBaseTest. + (Colin McCabe via eli) + + HADOOP-9127. Update documentation for ZooKeeper Failover Controller. + (Daisuke Kobayashi via atm) + + HADOOP-9004. Allow security unit tests to use external KDC. (Stephen Chu + via suresh) + + HADOOP-9147. Add missing fields to FIleStatus.toString. + (Jonathan Allen via suresh) + + HADOOP-8427. Convert Forrest docs to APT, incremental. (adi2 via tucu) + + HADOOP-9162. Add utility to check native library availability. + (Binglin Chang via suresh) + + HADOOP-9173. Add security token protobuf definition to common and + use it in hdfs. (suresh) + + HADOOP-9119. Add test to FileSystemContractBaseTest to verify integrity + of overwritten files. (Steve Loughran via suresh) + + HADOOP-9192. Move token related request/response messages to common. + (suresh) + + HADOOP-8712. Change default hadoop.security.group.mapping to + JniBasedUnixGroupsNetgroupMappingWithFallback (Robert Parker via todd) + + HADOOP-9106. Allow configuration of IPC connect timeout. + (Rober Parker via suresh) + + HADOOP-9216. CompressionCodecFactory#getCodecClasses should trim the + result of parsing by Configuration. (Tsuyoshi Ozawa via todd) + + HADOOP-9231. Parametrize staging URL for the uniformity of + distributionManagement. (Konstantin Boudnik via suresh) + + HADOOP-9276. Allow BoundedByteArrayOutputStream to be resettable. + (Arun Murthy via hitesh) + + HADOOP-7688. Add servlet handler check in HttpServer.start(). + (Uma Maheswara Rao G via szetszwo) + + HADOOP-7886. Add toString to FileStatus. (SreeHari via jghoman) + + OPTIMIZATIONS + + HADOOP-8866. SampleQuantiles#query is O(N^2) instead of O(N). (Andrew Wang + via atm) + + HADOOP-8926. hadoop.util.PureJavaCrc32 cache hit-ratio is low for static + data (Gopal V via bobby) + + BUG FIXES + + HADOOP-9041. FsUrlStreamHandlerFactory could cause an infinite loop in + FileSystem initialization. (Yanbo Liang and Radim Kolar via llu) + + HADOOP-8418. Update UGI Principal classes name for running with + IBM JDK on 64 bits Windows. (Yu Gao via eyang) + + HADOOP-8795. BASH tab completion doesn't look in PATH, assumes path to + executable is specified. (Sean Mackrory via atm) + + HADOOP-8780. Update DeprecatedProperties apt file. (Ahmed Radwan via + tomwhite) + + HADOOP-8833. fs -text should make sure to call inputstream.seek(0) + before using input stream. (tomwhite and harsh) + + HADOOP-8791. Fix rm command documentation to indicte it deletes + files and not directories. (Jing Zhao via suresh) + + HADOOP-8855. SSL-based image transfer does not work when Kerberos + is disabled. (todd via eli) + + HADOOP-8616. ViewFS configuration requires a trailing slash. (Sandy Ryza + via atm) + + HADOOP-8756. Fix SEGV when libsnappy is in java.library.path but + not LD_LIBRARY_PATH. (Colin Patrick McCabe via eli) + + HADOOP-8881. FileBasedKeyStoresFactory initialization logging should + be debug not info. (tucu) + + HADOOP-8913. hadoop-metrics2.properties should give units in comment + for sampling period. (Sandy Ryza via suresh) + + HADOOP-8878. Uppercase namenode hostname causes hadoop dfs calls with + webhdfs filesystem and fsck to fail when security is on. + (Arpit Gupta via suresh) + + HADOOP-8901. GZip and Snappy support may not work without unversioned + libraries (Colin Patrick McCabe via todd) + + HADOOP-8883. Anonymous fallback in KerberosAuthenticator is broken. + (rkanter via tucu) + + HADOOP-8900. BuiltInGzipDecompressor throws IOException - stored gzip size + doesn't match decompressed size. (Andy Isaacson via suresh) + + HADOOP-8948. TestFileUtil.testGetDU fails on Windows due to incorrect + assumption of line separator. (Chris Nauroth via suresh) + + HADOOP-8951. RunJar to fail with user-comprehensible error + message if jar missing. (stevel via suresh) + + HADOOP-8713. TestRPCCompatibility fails intermittently with JDK7 + (Trevor Robinson via tgraves) + + HADOOP-9012. IPC Client sends wrong connection context (daryn via bobby) + + HADOOP-7115. Add a cache for getpwuid_r and getpwgid_r calls (tucu) + + HADOOP-6607. Add different variants of non caching HTTP headers. (tucu) + + HADOOP-9049. DelegationTokenRenewer needs to be Singleton and FileSystems + should register/deregister to/from. (Karthik Kambatla via tomwhite) + + HADOOP-9064. Augment DelegationTokenRenewer API to cancel the tokens on + calls to removeRenewAction. (kkambatl via tucu) + + HADOOP-9103. UTF8 class does not properly decode Unicode characters + outside the basic multilingual plane. (todd) + + HADOOP-9070. Kerberos SASL server cannot find kerberos key. (daryn via atm) + + HADOOP-6762. Exception while doing RPC I/O closes channel + (Sam Rash and todd via todd) + + HADOOP-9126. FormatZK and ZKFC startup can fail due to zkclient connection + establishment delay. (Rakesh R and todd via todd) + + HADOOP-9113. o.a.h.fs.TestDelegationTokenRenewer is failing intermittently. + (Karthik Kambatla via eli) + + HADOOP-9135. JniBasedUnixGroupsMappingWithFallback should log at debug + rather than info during fallback. (Colin Patrick McCabe via todd) + + HADOOP-9152. HDFS can report negative DFS Used on clusters with very small + amounts of data. (Brock Noland via atm) + + HADOOP-9153. Support createNonRecursive in ViewFileSystem. + (Sandy Ryza via tomwhite) + + HADOOP-9181. Set daemon flag for HttpServer's QueuedThreadPool. + (Liang Xie via suresh) + + HADOOP-9155. FsPermission should have different default value, 777 for + directory and 666 for file. (Binglin Chang via atm) + + HADOOP-9183. Potential deadlock in ActiveStandbyElector. (tomwhite) + + HADOOP-9203. RPCCallBenchmark should find a random available port. + (Andrew Purtell via suresh) + + HADOOP-9178. src/main/conf is missing hadoop-policy.xml. + (Sandy Ryza via eli) + + HADOOP-8816. HTTP Error 413 full HEAD if using kerberos authentication. + (moritzmoeller via tucu) + + HADOOP-9212. Potential deadlock in FileSystem.Cache/IPC/UGI. (tomwhite) + + HADOOP-8589 ViewFs tests fail when tests and home dirs are nested. + (sanjay Radia) + + HADOOP-9193. hadoop script can inadvertently expand wildcard arguments + when delegating to hdfs script. (Andy Isaacson via todd) + + HADOOP-9215. when using cmake-2.6, libhadoop.so doesn't get created + (only libhadoop.so.1.0.0) (Colin Patrick McCabe via todd) + + HADOOP-8857. hadoop.http.authentication.signature.secret.file docs + should not state that secret is randomly generated. (tucu) + + HADOOP-9190. packaging docs is broken. (Andy Isaacson via tgraves) + + HADOOP-9221. Convert remaining xdocs to APT. (Andy Isaacson via atm) + + HADOOP-8981. TestMetricsSystemImpl fails on Windows. (Xuan Gong via suresh) + + HADOOP-9124. SortedMapWritable violates contract of Map interface for + equals() and hashCode(). (Surenkumar Nihalani via tomwhite) + + HADOOP-9278. Fix the file handle leak in HarMetaData.parseMetaData() in + HarFileSystem. (Chris Nauroth via szetszwo) + + HADOOP-9252. In StringUtils, humanReadableInt(..) has a race condition and + the synchronization of limitDecimalTo2(double) can be avoided. (szetszwo) + + HADOOP-9260. Hadoop version may be not correct when starting name node or + data node. (Chris Nauroth via jlowe) + + HADOOP-9289. FsShell rm -f fails for non-matching globs. (Daryn Sharp via + suresh) + +Release 2.0.2-alpha - 2012-09-07 + + INCOMPATIBLE CHANGES + + HADOOP-8388. Remove unused BlockLocation serialization. + (Colin Patrick McCabe via eli) + + HADOOP-8689. Make trash a server side configuration option. (eli) + + HADOOP-8710. Remove ability for users to easily run the trash emptire. (eli) + + HADOOP-8794. Rename YARN_HOME to HADOOP_YARN_HOME. (vinodkv via acmurthy) + + NEW FEATURES + + HDFS-3042. Automatic failover support for NameNode HA (todd) + (see dedicated section below for breakdown of subtasks) + + HADOOP-8135. Add ByteBufferReadable interface to FSDataInputStream. (Henry + Robinson via atm) + + HADOOP-8458. Add management hook to AuthenticationHandler to enable + delegation token operations support (tucu) + + HADOOP-8465. hadoop-auth should support ephemeral authentication (tucu) + + HADOOP-8644. AuthenticatedURL should be able to use SSLFactory. (tucu) + + HADOOP-8581. add support for HTTPS to the web UIs. (tucu) + + HADOOP-7754. Expose file descriptors from Hadoop-wrapped local + FileSystems (todd and ahmed via tucu) + + HADOOP-8240. Add a new API to allow users to specify a checksum type + on FileSystem.create(..). (Kihwal Lee via szetszwo) + + IMPROVEMENTS + + HADOOP-8340. SNAPSHOT build versions should compare as less than their eventual + final release. (todd) + + HADOOP-8361. Avoid out-of-memory problems when deserializing strings. + (Colin Patrick McCabe via eli) + + HADOOP-8224. Don't hardcode hdfs.audit.logger in the scripts. + (Tomohiko Kinebuchi via eli) + + HADOOP-8398. Cleanup BlockLocation. (eli) + + HADOOP-8422. Deprecate FileSystem#getDefault* and getServerDefault + methods that don't take a Path argument. (eli) + + HADOOP-8323. Add javadoc and tests for Text.clear() behavior (harsh) + + HADOOP-8358. Config-related WARN for dfs.web.ugi can be avoided. (harsh) + + HADOOP-8450. Remove src/test/system. (eli) + + HADOOP-8244. Improve comments on ByteBufferReadable.read. (Henry Robinson + via atm) + + HADOOP-8368. Use CMake rather than autotools to build native code (ccccabe via tucu) + + HADOOP-8524. Allow users to get source of a Configuration + parameter (harsh) + + HADOOP-8449. hadoop fs -text fails with compressed sequence files + with the codec file extension (harsh) + + HADOOP-6802. Remove FS_CLIENT_BUFFER_DIR_KEY = "fs.client.buffer.dir" + from CommonConfigurationKeys.java (not used, deprecated) + (Sho Shimauchi via harsh) + + HADOOP-3450. Add tests to Local Directory Allocator for + asserting their URI-returning capability (Sho Shimauchi via harsh) + + HADOOP-8463. hadoop.security.auth_to_local needs a key definition and doc. + (Madhukara Phatak via eli) + + HADOOP-8533. Remove parallel call ununsed capability in RPC. + (Brandon Li via suresh) + + HADOOP-8423. MapFile.Reader.get() crashes jvm or throws + EOFException on Snappy or LZO block-compressed data + (todd via harsh) + + HADOOP-8541. Better high-percentile latency metrics. (Andrew Wang via atm) + + HADOOP-8362. Improve exception message when Configuration.set() is + called with a null key or value. (Madhukara Phatak + and Suresh Srinivas via harsh) + + HADOOP-7818. DiskChecker#checkDir should fail if the directory is + not executable. (Madhukara Phatak via harsh) + + HADOOP-8531. SequenceFile Writer can throw out a better error if a + serializer or deserializer isn't available + (Madhukara Phatak via harsh) + + HADOOP-8609. IPC server logs a useless message when shutting down socket. + (Jon Zuanich via atm) + + HADOOP-8620. Add -Drequire.fuse and -Drequire.snappy. (Colin + Patrick McCabe via eli) + + HADOOP-8687. Upgrade log4j to 1.2.17. (eli) + + HADOOP-8278. Make sure components declare correct set of dependencies. + (tomwhite) + + HADOOP-8700. Use enum to define the checksum constants in DataChecksum. + (szetszwo) + + HADOOP-8686. Fix warnings in native code. (Colin Patrick McCabe via eli) + + HADOOP-8239. Add subclasses of MD5MD5CRC32FileChecksum to support file + checksum with CRC32C. (Kihwal Lee via szetszwo) + + HADOOP-8619. WritableComparator must implement no-arg constructor. + (Chris Douglas via Suresh) + + HADOOP-8075. Lower native-hadoop library log from info to debug. + (Hızır Sefa İrken via eli) + + HADOOP-8748. Refactor DFSClient retry utility methods to a new class + in org.apache.hadoop.io.retry. (Arun C Murthy via szetszwo) + + HADOOP-8754. Deprecate all the RPC.getServer() variants. (Brandon Li + via szetszwo) + + HADOOP-8801. ExitUtil#terminate should capture the exception stack trace. (eli) + + HADOOP-8819. Incorrectly & is used instead of && in some file system + implementations. (Brandon Li via suresh) + + HADOOP-7808. Port HADOOP-7510 - Add configurable option to use original + hostname in token instead of IP to allow server IP change. + (Daryn Sharp via suresh) + + BUG FIXES + + HADOOP-8372. NetUtils.normalizeHostName() incorrectly handles hostname + starting with a numeric character. (Junping Du via suresh) + + HADOOP-8393. hadoop-config.sh missing variable exports, causes Yarn jobs + to fail with ClassNotFoundException MRAppMaster. (phunt via tucu) + + HADOOP-8316. Audit logging should be disabled by default. (eli) + + HADOOP-8400. All commands warn "Kerberos krb5 configuration not found" + when security is not enabled. (tucu) + + HADOOP-8406. CompressionCodecFactory.CODEC_PROVIDERS iteration is + thread-unsafe (todd) + + HADOOP-8287. etc/hadoop is missing hadoop-env.sh (eli) + + HADOOP-8408. MR doesn't work with a non-default ViewFS mount table + and security enabled. (atm via eli) + + HADOOP-8329. Build fails with Java 7. (eli) + + HADOOP-8268. A few pom.xml across Hadoop project + may fail XML validation. (Radim Kolar via harsh) + + HADOOP-8444. Fix the tests FSMainOperationsBaseTest.java and + FileContextMainOperationsBaseTest.java to avoid potential + test failure (Madhukara Phatak via harsh) + + HADOOP-8452. DN logs backtrace when running under jsvc and /jmx is loaded + (Andy Isaacson via bobby) + + HADOOP-8460. Document proper setting of HADOOP_PID_DIR and + HADOOP_SECURE_DN_PID_DIR (bobby) + + HADOOP-8466. hadoop-client POM incorrectly excludes avro. (bmahe via tucu) + + HADOOP-8481. update BUILDING.txt to talk about cmake rather than autotools. + (Colin Patrick McCabe via eli) + + HADOOP-8485. Don't hardcode "Apache Hadoop 0.23" in the docs. (eli) + + HADOOP-8488. test-patch.sh gives +1 even if the native build fails. + (Colin Patrick McCabe via eli) + + HADOOP-8507. Avoid OOM while deserializing DelegationTokenIdentifer. + (Colin Patrick McCabe via eli) + + HADOOP-8433. Don't set HADOOP_LOG_DIR in hadoop-env.sh. + (Brahma Reddy Battula via eli) + + HADOOP-8509. JarFinder duplicate entry: META-INF/MANIFEST.MF exception (tucu) + + HADOOP-8512. AuthenticatedURL should reset the Token when the server returns + other than OK on authentication (tucu) + + HADOOP-8168. empty-string owners or groups causes {{MissingFormatWidthException}} + in o.a.h.fs.shell.Ls.ProcessPath() (ekoontz via tucu) + + HADOOP-8438. hadoop-validate-setup.sh refers to examples jar file which doesn't exist + (Devaraj K via umamahesh) + + HADOOP-8538. CMake builds fail on ARM. (Trevor Robinson via eli) + + HADOOP-8547. Package hadoop-pipes examples/bin directory (again). + (Colin Patrick McCabe via eli) + + HADOOP-8563. don't package hadoop-pipes examples/bin + (Colin Patrick McCabe via tgraves) + + HADOOP-8566. AvroReflectSerializer.accept(Class) throws a NPE if the class has no + package (primitive types and arrays). (tucu) + + HADOOP-8586. Fixup a bunch of SPNEGO misspellings. (eli) + + HADOOP-3886. Error in javadoc of Reporter, Mapper and Progressable + (Jingguo Yao via harsh) + + HADOOP-8587. HarFileSystem access of harMetaCache isn't threadsafe. (eli) + + HADOOP-8585. Fix initialization circularity between UserGroupInformation + and HadoopConfiguration. (Colin Patrick McCabe via atm) + + HADOOP-8552. Conflict: Same security.log.file for multiple users. + (kkambatl via tucu) + + HADOOP-8537. Fix TFile tests to pass even when native zlib support is not + compiled. (todd) + + HADOOP-8626. Typo in default setting for + hadoop.security.group.mapping.ldap.search.filter.user. (Jonathan Natkins + via atm) + + HADOOP-8480. The native build should honor -DskipTests. + (Colin Patrick McCabe via eli) + + HADOOP-8659. Native libraries must build with soft-float ABI for Oracle JVM + on ARM. (Trevor Robinson via todd) + + HADOOP-8654. TextInputFormat delimiter bug (Gelesh and Jason Lowe via + bobby) + + HADOOP-8614. IOUtils#skipFully hangs forever on EOF. + (Colin Patrick McCabe via eli) + + HADOOP-8720. TestLocalFileSystem should use test root subdirectory. + (Vlad Rozov via eli) + + HADOOP-8721. ZKFC should not retry 45 times when attempting a graceful + fence during a failover. (Vinayakumar B via atm) + + HADOOP-8632. Configuration leaking class-loaders (Costin Leau via bobby) + + HADOOP-4572. Can not access user logs - Jetty is not configured by default + to serve aliases/symlinks (ahmed via tucu) + + HADOOP-8660. TestPseudoAuthenticator failing with NPE. (tucu) + + HADOOP-8699. some common testcases create core-site.xml in test-classes + making other testcases to fail. (tucu) + + HADOOP-8031. Configuration class fails to find embedded .jar resources; + should use URL.openStream() (genman via tucu) + + HADOOP-8737. cmake: always use JAVA_HOME to find libjvm.so, jni.h, jni_md.h. + (Colin Patrick McCabe via eli) + + HADOOP-8747. Syntax error on cmake version 2.6 patch 2 in JNIFlags.cmake. (cmccabe via tucu) + + HADOOP-8722. Update BUILDING.txt with latest snappy info. + (Colin Patrick McCabe via eli) + + HADOOP-8764. CMake: HADOOP-8737 broke ARM build. (Trevor Robinson via eli) + + HADOOP-8770. NN should not RPC to self to find trash defaults. (eli) + + HADOOP-8648. libhadoop: native CRC32 validation crashes when + io.bytes.per.checksum=1. (Colin Patrick McCabe via eli) + + HADOOP-8766. FileContextMainOperationsBaseTest should randomize the root + dir. (Colin Patrick McCabe via atm) + + HADOOP-8749. HADOOP-8031 changed the way in which relative xincludes are handled in + Configuration. (ahmed via tucu) + + HADOOP-8431. Running distcp wo args throws IllegalArgumentException. + (Sandy Ryza via eli) + + HADOOP-8775. MR2 distcp permits non-positive value to -bandwidth option + which causes job never to complete. (Sandy Ryza via atm) + + HADOOP-8781. hadoop-config.sh should add JAVA_LIBRARY_PATH to LD_LIBRARY_PATH. (tucu) + + BREAKDOWN OF HDFS-3042 SUBTASKS + + HADOOP-8220. ZKFailoverController doesn't handle failure to become active + correctly (todd) + + HADOOP-8228. Auto HA: Refactor tests and add stress tests. (todd) + + HADOOP-8215. Security support for ZK Failover controller (todd) + + HADOOP-8245. Fix flakiness in TestZKFailoverController (todd) + + HADOOP-8257. TestZKFailoverControllerStress occasionally fails with Mockito + error (todd) + + HADOOP-8260. Replace ClientBaseWithFixes with our own modified copy of the + class (todd) + + HADOOP-8246. Auto-HA: automatically scope znode by nameservice ID (todd) + + HADOOP-8247. Add a config to enable auto-HA, which disables manual + FailoverController (todd) + + HADOOP-8306. ZKFC: improve error message when ZK is not running. (todd) + + HADOOP-8279. Allow manual failover to be invoked when auto-failover is + enabled. (todd) + + HADOOP-8276. Auto-HA: add config for java options to pass to zkfc daemon + (todd via eli) + + HADOOP-8405. ZKFC tests leak ZK instances. (todd) + +Release 2.0.0-alpha - 05-23-2012 + + INCOMPATIBLE CHANGES + + HADOOP-7920. Remove Avro Rpc. (suresh) + + NEW FEATURES + + HADOOP-7773. Add support for protocol buffer based RPC engine. + (suresh) + + HADOOP-7875. Add helper class to unwrap protobuf ServiceException. + (suresh) + + HADOOP-7454. Common side of High Availability Framework (HDFS-1623) + Contributed by Todd Lipcon, Aaron T. Myers, Eli Collins, Uma Maheswara Rao G, + Bikas Saha, Suresh Srinivas, Jitendra Nath Pandey, Hari Mankude, Brandon Li, + Sanjay Radia, Mingjie Lai, and Gregory Chanan + + HADOOP-8121. Active Directory Group Mapping Service. (Jonathan Natkins via + atm) + + HADOOP-7030. Add TableMapping topology implementation to read host to rack + mapping from a file. (Patrick Angeles and tomwhite via tomwhite) + + HADOOP-8206. Common portion of a ZK-based failover controller (todd) + + HADOOP-8210. Common side of HDFS-3148: The client should be able + to use multiple local interfaces for data transfer. (eli) + + HADOOP-8343. Allow configuration of authorization for JmxJsonServlet and + MetricsServlet (tucu) + + IMPROVEMENTS + + HADOOP-7524. Change RPC to allow multiple protocols including multuple + versions of the same protocol (sanjay Radia) + + HADOOP-7607. Simplify the RPC proxy cleanup process. (atm) + + HADOOP-7687. Make getProtocolSignature public (sanjay) + + HADOOP-7693. Enhance AvroRpcEngine to support the new #addProtocol + interface introduced in HADOOP-7524. (cutting) + + HADOOP-7716. RPC protocol registration on SS does not log the protocol name + (only the class which may be different) (sanjay) + + HADOOP-7776. Make the Ipc-Header in a RPC-Payload an explicit header. + (sanjay) + + HADOOP-7862. Move the support for multiple protocols to lower layer so + that Writable, PB and Avro can all use it (Sanjay) + + HADOOP-7876. Provided access to encoded key in DelegationKey for + use in protobuf based RPCs. (suresh) + + HADOOP-7899. Generate proto java files as part of the build. (tucu) + + HADOOP-7957. Classes deriving GetGroupsBase should be able to override + proxy creation. (jitendra) + + HADOOP-7965. Support for protocol version and signature in PB. (jitendra) + + HADOOP-8070. Add a standalone benchmark for RPC call performance. (todd) + + HADOOP-8084. Updates ProtoBufRpc engine to not do an unnecessary copy + for RPC request/response. (ddas) + + HADOOP-8085. Add RPC metrics to ProtobufRpcEngine. (Hari Mankude via + suresh) + + HADOOP-8098. KerberosAuthenticatorHandler should use _HOST replacement to + resolve principal name (tucu) + + HADOOP-8118. In metrics2.util.MBeans, change log level to trace for the + stack trace of InstanceAlreadyExistsException. (szetszwo) + + HADOOP-8125. make hadoop-client set of curated jars available in a + distribution tarball (rvs via tucu) + + HADOOP-7717. Move handling of concurrent client fail-overs to + RetryInvocationHandler (atm) + + HADOOP-7728. Enable task memory management to be configurable in hadoop + config setup script. (ramya) + + HADOOP-7358. Improve log levels when exceptions caught in RPC handler + (Todd Lipcon via shv) + + HADOOP-7557 Make IPC header be extensible (sanjay radia) + + HADOOP-7806. Support binding to sub-interfaces (eli) + + HADOOP-6941. Adds support for building Hadoop with IBM's JDK + (Stephen Watt, Eli and ddas) + + HADOOP-8183. Stop using "mapred.used.genericoptions.parser" (harsh) + + HADOOP-6924. Adds a directory to the list of directories to search + for the libjvm.so file. The new directory is found by running a 'find' + command and the first output is taken. This was done to handle the + build of Hadoop with IBM's JDK. (Stephen Watt, Guillermo Cabrera and ddas) + + HADOOP-8200. Remove HADOOP_[JOBTRACKER|TASKTRACKER]_OPTS. (eli) + + HADOOP-8184. ProtoBuf RPC engine uses the IPC layer reply packet. + (Sanjay Radia via szetszwo) + + HADOOP-8163. Improve ActiveStandbyElector to provide hooks for + fencing old active. (todd) + + HADOOP-8193. Refactor FailoverController/HAAdmin code to add an abstract + class for "target" services. (todd) + + HADOOP-8212. Improve ActiveStandbyElector's behavior when session expires + (todd) + + HADOOP-8216. Address log4j.properties inconsistencies btw main and + template dirs. (Patrick Hunt via eli) + + HADOOP-8149. Cap space usage of default log4j rolling policy. + (Patrick Hunt via eli) + + HADOOP-8211. Update commons-net version to 3.1. (eli) + + HADOOP-8236. haadmin should have configurable timeouts for failover + commands. (todd) + + HADOOP-8242. AbstractDelegationTokenIdentifier: add getter methods + for owner and realuser. (Colin Patrick McCabe via eli) + + HADOOP-8007. Use substitution tokens for fencing argument (todd) + + HADOOP-8077. HA: fencing method should be able to be configured on + a per-NN or per-NS basis (todd) + + HADOOP-8086. KerberosName silently sets defaultRealm to "" if the + Kerberos config is not found, it should log a WARN (tucu) + + HADOOP-8280. Move VersionUtil/TestVersionUtil and GenericTestUtils from + HDFS into Common. (Ahmed Radwan via atm) + + HADOOP-8117. Upgrade test build to Surefire 2.12 (todd) + + HADOOP-8152. Expand public APIs for security library classes. (atm via eli) + + HADOOP-7549. Use JDK ServiceLoader mechanism to find FileSystem implementations. (tucu) + + HADOOP-8185. Update namenode -format documentation and add -nonInteractive + and -force. (Arpit Gupta via atm) + + HADOOP-8214. make hadoop script recognize a full set of deprecated commands (rvs via tucu) + + HADOOP-8347. Hadoop Common logs misspell 'successful'. + (Philip Zeyliger via eli) + + HADOOP-8350. Improve NetUtils.getInputStream to return a stream which has + a tunable timeout. (todd) + + HADOOP-8356. FileSystem service loading mechanism should print the FileSystem + impl it is failing to load (tucu) + + HADOOP-8353. hadoop-daemon.sh and yarn-daemon.sh can be misleading on stop. + (Roman Shaposhnik via atm) + + HADOOP-8113. Correction to BUILDING.txt: HDFS needs ProtocolBuffer, too + (not just MapReduce). Contributed by Eugene Koontz. + + HADOOP-8285 Use ProtoBuf for RpcPayLoadHeader (sanjay radia) + + HADOOP-8366 Use ProtoBuf for RpcResponseHeader (sanjay radia) + + HADOOP-7729. Send back valid HTTP response if user hits IPC port with + HTTP GET. (todd) + + HADOOP-7987. Support setting the run-as user in unsecure mode. (jitendra) + + HADOOP-7994. Remove getProtocolVersion and getProtocolSignature from the + client side translator and server side implementation. (jitendra) + + HADOOP-8367 Improve documentation of declaringClassProtocolName in + rpc headers. (Sanjay Radia) + + HADOOP-8624. ProtobufRpcEngine should log all RPCs if TRACE logging is + enabled (todd) + + OPTIMIZATIONS + + BUG FIXES + + HADOOP-8199. Fix issues in start-all.sh and stop-all.sh (Devaraj K via umamahesh) + + HADOOP-7635. RetryInvocationHandler should release underlying resources on + close. (atm) + + HADOOP-7695. RPC.stopProxy can throw unintended exception while logging + error. (atm) + + HADOOP-7833. Fix findbugs warnings in protobuf generated code. + (John Lee via suresh) + + HADOOP-7897. ProtobufRpcEngine client side exception mechanism is not + consistent with WritableRpcEngine. (suresh) + + HADOOP-7913. Fix bug in ProtoBufRpcEngine. (sanjay) + + HADOOP-7892. IPC logs too verbose after "RpcKind" introduction. (todd) + + HADOOP-7968. Errant println left in RPC.getHighestSupportedProtocol. (Sho + Shimauchi via harsh) + + HADOOP-7931. o.a.h.ipc.WritableRpcEngine should have a way to force + initialization. (atm) + + HADOOP-8104. Inconsistent Jackson versions (tucu) + + HADOOP-8119. Fix javac warnings in TestAuthenticationFilter in hadoop-auth. + (szetszwo) + + HADOOP-7888. TestFailoverProxy fails intermittently on trunk. (Jason Lowe + via atm) + + HADOOP-8154. DNS#getIPs shouldn't silently return the local host + IP for bogus interface names. (eli) + + HADOOP-8169. javadoc generation fails with java.lang.OutOfMemoryError: + Java heap space (tgraves via bobby) + + HADOOP-8167. Configuration deprecation logic breaks backwards compatibility (tucu) + + HADOOP-8189. LdapGroupsMapping shouldn't throw away IOException. (Jonathan Natkins via atm) + + HADOOP-8191. SshFenceByTcpPort uses netcat incorrectly (todd) + + HADOOP-8157. Fix race condition in Configuration that could cause spurious + ClassNotFoundExceptions after a GC. (todd) + + HADOOP-8197. Configuration logs WARNs on every use of a deprecated key (tucu) + + HADOOP-8159. NetworkTopology: getLeaf should check for invalid topologies. + (Colin Patrick McCabe via eli) + + HADOOP-8204. TestHealthMonitor fails occasionally (todd) + + HADOOP-8202. RPC stopProxy() does not close the proxy correctly. + (Hari Mankude via suresh) + + HADOOP-8218. RPC.closeProxy shouldn't throw error when closing a mock + (todd) + + HADOOP-8238. NetUtils#getHostNameOfIP blows up if given ip:port + string w/o port. (eli) + + HADOOP-8243. Security support broken in CLI (manual) failover controller + (todd) + + HADOOP-8251. Fix SecurityUtil.fetchServiceTicket after HADOOP-6941 (todd) + + HADOOP-8249. invalid hadoop-auth cookies should trigger authentication + if info is avail before returning HTTP 401 (tucu) + + HADOOP-8261. Har file system doesn't deal with FS URIs with a host but no + port. (atm) + + HADOOP-8263. Stringification of IPC calls not useful (todd) + + HADOOP-8264. Remove irritating double double quotes in front of hostname + (Bernd Fondermann via bobby) + + HADOOP-8270. hadoop-daemon.sh stop action should return 0 for an + already stopped service. (Roman Shaposhnik via eli) + + HADOOP-8144. pseudoSortByDistance in NetworkTopology doesn't work + properly if no local node and first node is local rack node. + (Junping Du) + + HADOOP-8282. start-all.sh refers incorrectly start-dfs.sh + existence for starting start-yarn.sh. (Devaraj K via eli) + + HADOOP-7350. Use ServiceLoader to discover compression codec classes. + (tomwhite) + + HADOOP-8284. clover integration broken, also mapreduce poms are pulling + in clover as a dependency. (phunt via tucu) + + HADOOP-8309. Pseudo & Kerberos AuthenticationHandler should use + getType() to create token (tucu) + + HADOOP-8314. HttpServer#hasAdminAccess should return false if + authorization is enabled but user is not authenticated. (tucu) + + HADOOP-8296. hadoop/yarn daemonlog usage wrong (Devaraj K via tgraves) + + HADOOP-8310. FileContext#checkPath should handle URIs with no port. (atm) + + HADOOP-8321. TestUrlStreamHandler fails. (tucu) + + HADOOP-8325. Add a ShutdownHookManager to be used by different + components instead of the JVM shutdownhook (tucu) + + HADOOP-8275. Range check DelegationKey length. + (Colin Patrick McCabe via eli) + + HADOOP-8342. HDFS command fails with exception following merge of + HADOOP-8325 (tucu) + + HADOOP-8346. Makes oid changes to make SPNEGO work. Was broken due + to fixes introduced by the IBM JDK compatibility patch. (ddas) + + HADOOP-8355. SPNEGO filter throws/logs exception when authentication fails (tucu) + + HADOOP-8349. ViewFS doesn't work when the root of a file system is mounted. (atm) + + HADOOP-8328. Duplicate FileSystem Statistics object for 'file' scheme. + (tomwhite) + + HADOOP-8359. Fix javadoc warnings in Configuration. (Anupam Seth via + szetszwo) + + HADOOP-7988. Upper case in hostname part of the principals doesn't work with + kerberos. (jitendra) + + BREAKDOWN OF HADOOP-7454 SUBTASKS + + HADOOP-7455. HA: Introduce HA Service Protocol Interface. (suresh) + + HADOOP-7774. HA: Administrative CLI to control HA daemons. (todd) + + HADOOP-7896. HA: if both NNs are in Standby mode, client needs to try failing + back and forth several times with sleeps. (atm) + + HADOOP-7922. Improve some logging for client IPC failovers and + StandbyExceptions (todd) + + HADOOP-7921. StandbyException should extend IOException (todd) + + HADOOP-7928. HA: Client failover policy is incorrectly trying to fail over all + IOExceptions (atm) + + HADOOP-7925. Add interface and update CLI to query current state to + HAServiceProtocol (eli via todd) + + HADOOP-7932. Make client connection retries on socket time outs configurable. + (Uma Maheswara Rao G via todd) + + HADOOP-7924. FailoverController for client-based configuration (eli) + + HADOOP-7961. Move HA fencing to common. (eli) + + HADOOP-7970. HAServiceProtocol methods must throw IOException. (Hari Mankude + via suresh). + + HADOOP-7992. Add ZKClient library to facilitate leader election. (Bikas Saha + via suresh). + + HADOOP-7983. HA: failover should be able to pass args to fencers. (eli) + + HADOOP-7938. HA: the FailoverController should optionally fence the active + during failover. (eli) + + HADOOP-7991. HA: the FailoverController should check the standby is ready + before failing over. (eli) + + HADOOP-8038. Add 'ipc.client.connect.max.retries.on.timeouts' entry in + core-default.xml file. (Uma Maheswara Rao G via atm) + + HADOOP-8041. Log a warning when a failover is first attempted (todd) + + HADOOP-8068. void methods can swallow exceptions when going through failover + path (todd) + + HADOOP-8116. RetriableCommand is using RetryPolicy incorrectly after + HADOOP-7896. (atm) + + HADOOP-8317. Update maven-assembly-plugin to 2.3 - fix build on FreeBSD + (Radim Kolar via bobby) + + HADOOP-8172. Configuration no longer sets all keys in a deprecated key + list. (Anupam Seth via bobby) + + HADOOP-7868. Hadoop native fails to compile when default linker + option is -Wl,--as-needed. (Trevor Robinson via eli) + + HADOOP-8655. Fix TextInputFormat for large deliminators. (Gelesh via + bobby) + + HADOOP-7900. LocalDirAllocator confChanged() accesses conf.get() twice + (Ravi Gummadi via Uma Maheswara Rao G) + + HADOOP-8146. FsShell commands cannot be interrupted + (Daryn Sharp via Uma Maheswara Rao G) + + HADOOP-8018. Hudson auto test for HDFS has started throwing javadoc + (Jon Eagles via bobby) + + HADOOP-8001 ChecksumFileSystem's rename doesn't correctly handle checksum + files. (Daryn Sharp via bobby) + + HADOOP-8006 TestFSInputChecker is failing in trunk. + (Daryn Sharp via bobby) + + HADOOP-7998. CheckFileSystem does not correctly honor setVerifyChecksum + (Daryn Sharp via bobby) + + HADOOP-7606. Upgrade Jackson to version 1.7.1 to match the version required + by Jersey (Alejandro Abdelnur via atm) + +Release 0.23.9 - UNRELEASED + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + OPTIMIZATIONS + + BUG FIXES + +Release 0.23.8 - 2013-06-05 + + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + OPTIMIZATIONS + + BUG FIXES + + HADOOP-9222. Cover package with org.apache.hadoop.io.lz4 unit tests (Vadim + Bondarev via jlowe) + + HADOOP-9233. Cover package org.apache.hadoop.io.compress.zlib with unit + tests (Vadim Bondarev via jlowe) + + HADOOP-9469. mapreduce/yarn source jars not included in dist tarball + (Robert Parker via tgraves) + + HADOOP-9504. MetricsDynamicMBeanBase has concurrency issues in + createMBeanInfo (Liang Xie via jlowe) + + HADOOP-9614. smart-test-patch.sh hangs for new version of patch (2.7.1) + (Ravi Prakash via jeagles) + +Release 0.23.7 - 2013-04-18 + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + HADOOP-8849. FileUtil#fullyDelete should grant the target directories +rwx + permissions (Ivan A. Veselovsky via bobby) + + HADOOP-9067. provide test for LocalFileSystem.reportChecksumFailure + (Ivan A. Veselovsky via bobby) + + HADOOP-9336. Allow UGI of current connection to be queried. (Daryn Sharp + via kihwal) + + HADOOP-9352. Expose UGI.setLoginUser for tests (daryn) + + HADOOP-9209. Add shell command to dump file checksums (Todd Lipcon via + jeagles) + + HADOOP-9374. Add tokens from -tokenCacheFile into UGI (daryn) + + HADOOP-8711. IPC Server supports adding exceptions for which + the message is printed and the stack trace is not printed to avoid chatter. + (Brandon Li via Suresh) + + + OPTIMIZATIONS + + HADOOP-8462. Native-code implementation of bzip2 codec. (Govind Kamat via + jlowe) + + BUG FIXES + + HADOOP-9302. HDFS docs not linked from top level (Andy Isaacson via + tgraves) + + HADOOP-9303. command manual dfsadmin missing entry for restoreFailedStorage + option (Andy Isaacson via tgraves) + + HADOOP-9339. IPC.Server incorrectly sets UGI auth type (Daryn Sharp via + kihwal) + +Release 0.23.6 - 2013-02-06 + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + HADOOP-9217. Print thread dumps when hadoop-common tests fail. + (Andrey Klochkov via suresh) + + HADOOP-9247. Parametrize Clover "generateXxx" properties to make them + re-definable via -D in mvn calls. (Ivan A. Veselovsky via suresh) + + + OPTIMIZATIONS + + BUG FIXES + + HADOOP-9072. Hadoop-Common-0.23-Build Fails to build in Jenkins + (Robert Parker via tgraves) + + HADOOP-8992. Enhance unit-test coverage of class HarFileSystem (Ivan A. + Veselovsky via bobby) + + HADOOP-9038. unit-tests for AllocatorPerContext.PathIterator (Ivan A. + Veselovsky via bobby) + + HADOOP-9105. FsShell -moveFromLocal erroneously fails (daryn via bobby) + + HADOOP-9097. Maven RAT plugin is not checking all source files (tgraves) + + HADOOP-9255. relnotes.py missing last jira (tgraves) + +Release 0.23.5 - 2012-11-28 + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + HADOOP-8932. JNI-based user-group mapping modules can be too chatty on + lookup failures. (Kihwal Lee via suresh) + + HADOOP-8930. Cumulative code coverage calculation (Andrey Klochkov via + bobby) + + OPTIMIZATIONS + + BUG FIXES + + HADOOP-8906. paths with multiple globs are unreliable. (Daryn Sharp via + jlowe) + + HADOOP-8811. Compile hadoop native library in FreeBSD (Radim Kolar via + bobby) + + HADOOP-8962. RawLocalFileSystem.listStatus fails when a child filename + contains a colon (jlowe via bobby) + + HADOOP-8986. Server$Call object is never released after it is sent (bobby) + + HADOOP-9022. Hadoop distcp tool fails to copy file if -m 0 specified + (Jonathan Eagles vai bobby) + + HADOOP-9025. org.apache.hadoop.tools.TestCopyListing failing (Jonathan + Eagles via jlowe) + +Release 0.23.4 + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + HADOOP-8822. relnotes.py was deleted post mavenization (bobby) + + OPTIMIZATIONS + + BUG FIXES + + HADOOP-8843. Old trash directories are never deleted on upgrade + from 1.x (jlowe) + + HADOOP-8684. Deadlock between WritableComparator and WritableComparable. + (Jing Zhao via suresh) + +Release 0.23.3 + + INCOMPATIBLE CHANGES + + HADOOP-7967. Need generalized multi-token filesystem support (daryn) + + NEW FEATURES + + IMPROVEMENTS + + HADOOP-8108. Move method getHostPortString() from NameNode to NetUtils. + (Brandon Li via jitendra) + + HADOOP-8288. Remove references of mapred.child.ulimit etc. since they are + not being used any more (Ravi Prakash via bobby) + + HADOOP-8535. Cut hadoop build times in half (Job Eagles via bobby) + + HADOOP-8525. Provide Improved Traceability for Configuration (bobby) + + OPTIMIZATIONS + + BUG FIXES + + HADOOP-8088. User-group mapping cache incorrectly does negative caching on + transient failures (Khiwal Lee via bobby) + + HADOOP-8179. risk of NPE in CopyCommands processArguments() (Daryn Sharp + via bobby) + + HADOOP-6963. In FileUtil.getDU(..), neither include the size of directories + nor follow symbolic links. (Ravi Prakash via szetszwo) + + HADOOP-8180. Remove hsqldb since its not needed from pom.xml (Ravi Prakash + via tgraves) + + HADOOP-8014. ViewFileSystem does not correctly implement getDefaultBlockSize, + getDefaultReplication, getContentSummary (John George via bobby) + + HADOOP-7510. Tokens should use original hostname provided instead of ip + (Daryn Sharp via bobby) + + HADOOP-8283. Allow tests to control token service value (Daryn Sharp via + bobby) + + HADOOP-8286. Simplify getting a socket address from conf (Daryn Sharp via + bobby) + + HADOOP-8227. Allow RPC to limit ephemeral port range. (bobby) + + HADOOP-8305. distcp over viewfs is broken (John George via bobby) + + HADOOP-8334. HttpServer sometimes returns incorrect port (Daryn Sharp via + bobby) + + HADOOP-8330. Update TestSequenceFile.testCreateUsesFsArg() for HADOOP-8305. + (John George via szetszwo) + + HADOOP-8335. Improve Configuration's address handling (Daryn Sharp via + bobby) + + HADOOP-8327. distcpv2 and distcpv1 jars should not coexist (Dave Thompson + via bobby) + + HADOOP-8341. Fix or filter findbugs issues in hadoop-tools (bobby) + + HADOOP-8373. Port RPC.getServerAddress to 0.23 (Daryn Sharp via bobby) + + HADOOP-8495. Update Netty to avoid leaking file descriptors during shuffle + (Jason Lowe via tgraves) + + HADOOP-8129. ViewFileSystemTestSetup setupForViewFileSystem is erring + (Ahmed Radwan and Ravi Prakash via bobby) + + HADOOP-8573. Configuration tries to read from an inputstream resource + multiple times (Robert Evans via tgraves) + + HADOOP-8599. Non empty response from FileSystem.getFileBlockLocations when + asking for data beyond the end of file. (Andrey Klochkov via todd) + + HADOOP-8606. FileSystem.get may return the wrong filesystem (Daryn Sharp + via bobby) + + HADOOP-8551. fs -mkdir creates parent directories without the -p option + (John George via bobby) + + HADOOP-8613. AbstractDelegationTokenIdentifier#getUser() should set token + auth type. (daryn) + + HADOOP-8627. FS deleteOnExit may delete the wrong path (daryn via bobby) + + HADOOP-8634. Ensure FileSystem#close doesn't squawk for deleteOnExit paths + (daryn via bobby) + + HADOOP-8550. hadoop fs -touchz automatically created parent directories + (John George via bobby) + + HADOOP-8635. Cannot cancel paths registered deleteOnExit (daryn via bobby) + + HADOOP-8637. FilterFileSystem#setWriteChecksum is broken (daryn via bobby) + + HADOOP-8370. Native build failure: javah: class file for + org.apache.hadoop.classification.InterfaceAudience not found (Trevor + Robinson via tgraves) + + HADOOP-8633. Interrupted FsShell copies may leave tmp files (Daryn Sharp + via tgraves) + + HADOOP-8703. distcpV2: turn CRC checking off for 0 byte size (Dave + Thompson via bobby) + + HADOOP-8390. TestFileSystemCanonicalization fails with JDK7 (Trevor + Robinson via tgraves) + + HADOOP-8692. TestLocalDirAllocator fails intermittently with JDK7 + (Trevor Robinson via tgraves) + + HADOOP-8693. TestSecurityUtil fails intermittently with JDK7 (Trevor + Robinson via tgraves) + + HADOOP-8697. TestWritableName fails intermittently with JDK7 (Trevor + Robinson via tgraves) + + HADOOP-8695. TestPathData fails intermittently with JDK7 (Trevor + Robinson via tgraves) + + HADOOP-8611. Allow fall-back to the shell-based implementation when + JNI-based users-group mapping fails (Robert Parker via bobby) + + HADOOP-8225. DistCp fails when invoked by Oozie (daryn via bobby) + + HADOOP-8709. globStatus changed behavior from 0.20/1.x (Jason Lowe via + bobby) + + HADOOP-8725. MR is broken when security is off (daryn via bobby) + + HADOOP-8726. The Secrets in Credentials are not available to MR tasks + (daryn and Benoy Antony via bobby) + + HADOOP-8727. Gracefully deprecate dfs.umaskmode in 2.x onwards (Harsh J + via bobby) + +Release 0.23.2 - UNRELEASED + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + HADOOP-8048. Allow merging of Credentials (Daryn Sharp via tgraves) + + HADOOP-8032. mvn site:stage-deploy should be able to use the scp protocol + to stage documents (Ravi Prakash via tgraves) + + HADOOP-7923. Automate the updating of version numbers in the doc system. + (szetszwo) + + HADOOP-8137. Added links to CLI manuals to the site. (tgraves via + acmurthy) + + OPTIMIZATIONS + HADOOP-8071. Avoid an extra packet in client code when nagling is + disabled. (todd) + + HADOOP-6502. Improve the performance of Configuration.getClassByName when + the class is not found by caching negative results. + (sharad, todd via todd) + + BUG FIXES + + HADOOP-7660. Maven generated .classpath doesnot includes + "target/generated-test-source/java" as source directory. + (Laxman via bobby) + + HADOOP-8042 When copying a file out of HDFS, modifying it, and uploading + it back into HDFS, the put fails due to a CRC mismatch + (Daryn Sharp via bobby) + + HADOOP-8035 Hadoop Maven site is inefficient and runs phases redundantly + (abayer via tucu) + + HADOOP-8051 HttpFS documentation it is not wired to the generated site (tucu) + + HADOOP-8055. Hadoop tarball distribution lacks a core-site.xml (harsh) + + HADOOP-8052. Hadoop Metrics2 should emit Float.MAX_VALUE (instead of + Double.MAX_VALUE) to avoid making Ganglia's gmetad core. (Varun Kapoor + via mattf) + + HADOOP-8074. Small bug in hadoop error message for unknown commands. + (Colin Patrick McCabe via eli) + + HADOOP-8082 add hadoop-client and hadoop-minicluster to the + dependency-management section. (tucu) + + HADOOP-8066 The full docs build intermittently fails (abayer via tucu) + + HADOOP-8083 javadoc generation for some modules is not done under target/ (tucu) + + HADOOP-8036. TestViewFsTrash assumes the user's home directory is + 2 levels deep. (Colin Patrick McCabe via eli) + + HADOOP-8046 Revert StaticMapping semantics to the existing ones, add DNS + mapping diagnostics in progress (stevel) + + HADOOP-8057 hadoop-setup-conf.sh not working because of some extra spaces. + (Vinayakumar B via stevel) + + HADOOP-7680 TestHardLink fails on Mac OS X, when gnu stat is in path. + (Milind Bhandarkar via stevel) + + HADOOP-8050. Deadlock in metrics. (Kihwal Lee via mattf) + + HADOOP-8131. FsShell put doesn't correctly handle a non-existent dir + (Daryn Sharp via bobby) + + HADOOP-8123. Use java.home rather than env.JAVA_HOME for java in the + project. (Jonathan Eagles via acmurthy) + + HADOOP-8064. Remove unnecessary dependency on w3c.org in document processing + (Khiwal Lee via bobby) + + HADOOP-8140. dfs -getmerge should process its argments better (Daryn Sharp + via bobby) + + HADOOP-8164. Back slash as path separator is handled for Windows only. + (Daryn Sharp via suresh) + + HADOOP-8173. FsShell needs to handle quoted metachars. (Daryn Sharp via + szetszwo) + + HADOOP-8175. Add -p option to mkdir in FsShell. (Daryn Sharp via szetszwo) + + HADOOP-8176. Disambiguate the destination of FsShell copies (Daryn Sharp + via bobby) + + HADOOP-8208. Disallow self failover. (eli) + +Release 0.23.1 - 2012-02-17 + + INCOMPATIBLE CHANGES + + NEW FEATURES + + HADOOP-7777 Implement a base class for DNSToSwitchMapping implementations + that can offer extra topology information. (stevel) + + HADOOP-7657. Add support for LZ4 compression. (Binglin Chang via todd) + + HADOOP-7910. Add Configuration.getLongBytes to handle human readable byte size values. (Sho Shimauchi via harsh) + + + IMPROVEMENTS + + HADOOP-7801. HADOOP_PREFIX cannot be overriden. (Bruno Mahé via tomwhite) + + HADOOP-7802. Hadoop scripts unconditionally source + "$bin"/../libexec/hadoop-config.sh. (Bruno Mahé via tomwhite) + + HADOOP-7858. Drop some info logging to DEBUG level in IPC, + metrics, and HTTP. (todd via eli) + + HADOOP-7424. Log an error if the topology script doesn't handle multiple args. + (Uma Maheswara Rao G via eli) + + HADOOP-7804. Enable hadoop config generator to set configurations to enable + short circuit read. (Arpit Gupta via jitendra) + + HADOOP-7877. Update balancer CLI usage documentation to include the new + -policy option. (szetszwo) + + HADOOP-6840. Support non-recursive create() in FileSystem and + SequenceFile.Writer. (jitendra and eli via eli) + + HADOOP-6886. LocalFileSystem Needs createNonRecursive API. + (Nicolas Spiegelberg and eli via eli) + + HADOOP-7912. test-patch should run eclipse:eclipse to verify that it does + not break again. (Robert Joseph Evans via tomwhite) + + HADOOP-7890. Redirect hadoop script's deprecation message to stderr. + (Koji Knoguchi via mahadev) + + HADOOP-7504. Add the missing Ganglia31 opts to hadoop-metrics.properties as a comment. (harsh) + + HADOOP-7933. Add a getDelegationTokens api to FileSystem which checks + for known tokens in the passed Credentials object. (sseth) + + HADOOP-7737. normalize hadoop-mapreduce & hadoop-dist dist/tar build with + common/hdfs. (tucu) + + HADOOP-7743. Add Maven profile to create a full source tarball. (tucu) + + HADOOP-7758. Make GlobFilter class public. (tucu) + + HADOOP-7590. Mavenize streaming and MR examples. (tucu) + + HADOOP-7934. Normalize dependencies versions across all modules. (tucu) + + HADOOP-7348. Change 'addnl' in getmerge util to be a flag '-nl' instead. + (XieXianshan via harsh) + + HADOOP-7975. Add LZ4 as an entry in the default codec list, missed by HADOOP-7657 (harsh) + + HADOOP-4515. Configuration#getBoolean must not be case sensitive. (Sho Shimauchi via harsh) + + HADOOP-6490. Use StringUtils over String#replace in Path#normalizePath. + (Uma Maheswara Rao G via harsh) + + HADOOP-7574. Improve FSShell -stat, add user/group elements. + (XieXianshan via harsh) + + HADOOP-7736. Remove duplicate Path#normalizePath call. (harsh) + + HADOOP-7919. Remove the unused hadoop.logfile.* properties from the + core-default.xml file. (harsh) + + HADOOP-7939. Improve Hadoop subcomponent integration in Hadoop 0.23. (rvs via tucu) + + HADOOP-8002. SecurityUtil acquired token message should be a debug rather than info. + (Arpit Gupta via mahadev) + + HADOOP-8009. Create hadoop-client and hadoop-minicluster artifacts for downstream + projects. (tucu) + + HADOOP-7470. Move up to Jackson 1.8.8. (Enis Soztutar via szetszwo) + + HADOOP-8027. Visiting /jmx on the daemon web interfaces may print + unnecessary error in logs. (atm) + + HADOOP-7792. Add verifyToken method to AbstractDelegationTokenSecretManager. + (jitendra) + + OPTIMIZATIONS + + BUG FIXES + + HADOOP-7811. TestUserGroupInformation#testGetServerSideGroups test fails in chroot. + (Jonathan Eagles via mahadev) + + HADOOP-7813. Fix test-patch to use proper numerical comparison when checking + javadoc and findbugs warning counts. (Jonathan Eagles via tlipcon) + + HADOOP-7841. Run tests with non-secure random. (tlipcon) + + HADOOP-7851. Configuration.getClasses() never returns the default value. + (Uma Maheswara Rao G via amarrk) + + HADOOP-7787. Make source tarball use conventional name. + (Bruno Mahé via tomwhite) + + HADOOP-6614. RunJar should provide more diags when it can't create + a temp file. (Jonathan Hsieh via eli) + + HADOOP-7859. TestViewFsHdfs.testgetFileLinkStatus is failing an assert. (eli) + + HADOOP-7864. Building mvn site with Maven < 3.0.2 causes OOM errors. + (Andrew Bayer via eli) + + HADOOP-7854. UGI getCurrentUser is not synchronized. (Daryn Sharp via jitendra) + + HADOOP-7870. fix SequenceFile#createWriter with boolean + createParent arg to respect createParent. (Jon Hsieh via eli) + + HADOOP-7898. Fix javadoc warnings in AuthenticationToken.java. (suresh) + + HADOOP-7878 Regression: HADOOP-7777 switch changes break HDFS tests when the + isSingleSwitch() predicate is used. (stevel) + + HADOOP-7914. Remove the duplicated declaration of hadoop-hdfs test-jar in + hadoop-project/pom.xml. (szetszwo) + + HADOOP-7837. no NullAppender in the log4j config. (eli) + + HADOOP-7948. Shell scripts created by hadoop-dist/pom.xml to build tar do not + properly propagate failure. (cim_michajlomatijkiw via tucu) + + HADOOP-7949. Updated maxIdleTime default in the code to match + core-default.xml (eli) + + HADOOP-7853. multiple javax security configurations cause conflicts. + (daryn via tucu) + + HDFS-2614. hadoop dist tarball is missing hdfs headers. (tucu) + + HADOOP-7874. native libs should be under lib/native/ dir. (tucu) + + HADOOP-7887. KerberosAuthenticatorHandler is not setting + KerberosName name rules from configuration. (tucu) + + HADOOP-7902. skipping name rules setting (if already set) should be done + on UGI initialization only. (tucu) + + HADOOP-7810. move hadoop archive to core from tools. (tucu) + + HADOOP_7917. compilation of protobuf files fails in windows/cygwin. (tucu) + + HADOOP-7907. hadoop-tools JARs are not part of the distro. (tucu) + + HADOOP-7936. There's a Hoop README in the root dir of the tarball. (tucu) + + HADOOP-7963. Fix ViewFS to catch a null canonical service-name and pass + tests TestViewFileSystem* (Siddharth Seth via vinodkv) + + HADOOP-7964. Deadlock in NetUtils and SecurityUtil class initialization. + (Daryn Sharp via suresh) + + HADOOP-7974. TestViewFsTrash incorrectly determines the user's home + directory. (harsh via eli) + + HADOOP-7971. Adding back job/pipes/queue commands to bin/hadoop for + backward compatibility. (Prashath Sharma via acmurthy) + + HADOOP-7982. UserGroupInformation fails to login if thread's context + classloader can't load HadoopLoginModule. (todd) + + HADOOP-7986. Adding config for MapReduce History Server protocol in + hadoop-policy.xml for service level authorization. (Mahadev Konar via vinodkv) + + HADOOP-7981. Improve documentation for org.apache.hadoop.io.compress. + Decompressor.getRemaining (Jonathan Eagles via mahadev) + + HADOOP-7997. SequenceFile.createWriter(...createParent...) no + longer works on existing file. (Gregory Chanan via eli) + + HADOOP-7993. Hadoop ignores old-style config options for enabling compressed + output. (Anupam Seth via mahadev) + + HADOOP-8000. fetchdt command not available in bin/hadoop. + (Arpit Gupta via mahadev) + + HADOOP-7999. "hadoop archive" fails with ClassNotFoundException. + (Jason Lowe via mahadev) + + HADOOP-8012. hadoop-daemon.sh and yarn-daemon.sh are trying to mkdir + and chown log/pid dirs which can fail. (Roman Shaposhnik via eli) + + HADOOP-8013. ViewFileSystem does not honor setVerifyChecksum + (Daryn Sharp via bobby) + + HADOOP-8054 NPE with FilterFileSystem (Daryn Sharp via bobby) + +Release 0.23.0 - 2011-11-01 + + INCOMPATIBLE CHANGES + + HADOOP-6904. Support method based RPC compatiblity. (hairong) + + HADOOP-6432. Add Statistics support in FileContext. (jitendra) + + HADOOP-7136. Remove failmon contrib component. (nigel) + + NEW FEATURES + + HADOOP-7324. Ganglia plugins for metrics v2. (Priyo Mustafi via llu) + + HADOOP-7342. Add an utility API in FileUtil for JDK File.list + avoid NPEs on File.list() (Bharath Mundlapudi via mattf) + + HADOOP-7322. Adding a util method in FileUtil for directory listing, + avoid NPEs on File.listFiles() (Bharath Mundlapudi via mattf) + + HADOOP-7023. Add listCorruptFileBlocks to Filesysem. (Patrick Kling + via hairong) + + HADOOP-7096. Allow setting of end-of-record delimiter for TextInputFormat + (Ahmed Radwan via todd) + + HADOOP-6994. Api to get delegation token in AbstractFileSystem. (jitendra) + + HADOOP-7171. Support UGI in FileContext API. (jitendra) + + HADOOP-7257 Client side mount tables (sanjay) + + HADOOP-6919. New metrics2 framework. (Luke Lu via acmurthy) + + HADOOP-6920. Metrics instrumentation to move new metrics2 framework. + (Luke Lu via suresh) + + HADOOP-7214. Add Common functionality necessary to provide an equivalent + of /usr/bin/groups for Hadoop. (Aaron T. Myers via todd) + + HADOOP-6832. Add an authentication plugin using a configurable static user + for the web UI. (Owen O'Malley and Todd Lipcon via cdouglas) + + HADOOP-7144. Expose JMX metrics via JSON servlet. (Robert Joseph Evans via + cdouglas) + + HADOOP-7379. Add the ability to serialize and deserialize protocol buffers + in ObjectWritable. (todd) + + HADOOP-7206. Support Snappy compression. (Issei Yoshida and + Alejandro Abdelnur via eli) + + HADOOP-7329. Add the capability of getting invividual attribute of a mbean + using JMXProxyServlet. (tanping) + + HADOOP-7380. Add client failover functionality to o.a.h.io.(ipc|retry). + (atm via eli) + + HADOOP-7460. Support pluggable trash policies. (Usman Masoon via suresh) + + HADOOP-6385. dfs should support -rmdir (was HDFS-639). (Daryn Sharp + via mattf) + + HADOOP-7119. add Kerberos HTTP SPNEGO authentication support to Hadoop + JT/NN/DN/TT web-consoles. (Alejandro Abdelnur via atm) + + IMPROVEMENTS + + HADOOP-7655. Provide a small validation script that smoke tests the installed + cluster. (Arpit Gupta via mattf) + + HADOOP-7042. Updates to test-patch.sh to include failed test names and + improve other messaging. (nigel) + + HADOOP-7001. Configuration changes can occur via the Reconfigurable + interface. (Patrick Kling via dhruba) + + HADOOP-6764. Add number of reader threads and queue length as + configuration parameters in RPC.getServer. (Dmytro Molkov via hairong) + + HADOOP-7049. TestReconfiguration should be junit v4. + (Patrick Kling via eli) + + HADOOP-7054 Change NN LoadGenerator to use FileContext APIs + (Sanjay Radia) + + HADOOP-7060. A more elegant FileSystem#listCorruptFileBlocks API. + (Patrick Kling via hairong) + + HADOOP-7058. Expose number of bytes in FSOutputSummer buffer to + implementatins. (Todd Lipcon via hairong) + + HADOOP-7061. unprecise javadoc for CompressionCodec. (Jingguo Yao via eli) + + HADOOP-7059. Remove "unused" warning in native code. (Noah Watkins via eli) + + HADOOP-6864. Provide a JNI-based implementation of + ShellBasedUnixGroupsNetgroupMapping + (implementation of GroupMappingServiceProvider) (Erik Seffl via boryas) + + HADOOP-7078. Improve javadocs for RawComparator interface. + (Harsh J Chouraria via todd) + + HADOOP-6995. Allow wildcards to be used in ProxyUsers configurations. + (todd) + + HADOOP-6376. Add a comment header to conf/slaves that specifies the file + format. (Kay Kay via todd) + + HADOOP-7151. Document need for stable hashCode() in WritableComparable. + (Dmitriy V. Ryaboy via todd) + + HADOOP-7112. Issue a warning when GenericOptionsParser libjars are not on + local filesystem. (tomwhite) + + HADOOP-7114. FsShell should dump all exceptions at DEBUG level. + (todd via tomwhite) + + HADOOP-7159. RPC server should log the client hostname when read exception + happened. (Scott Chen via todd) + + HADOOP-7167. Allow using a file to exclude certain tests from build. (todd) + + HADOOP-7133. Batch the calls in DataStorage to FileUtil.createHardLink(). + (Matt Foley via jghoman) + + HADOOP-7166. Add DaemonFactory to common. (Erik Steffl & jitendra) + + HADOOP-7175. Add isEnabled() to Trash. (Daryn Sharp via szetszwo) + + HADOOP-7180. Better support on CommandFormat on the API and exceptions. + (Daryn Sharp via szetszwo) + + HADOOP-7202. Improve shell Command base class. (Daryn Sharp via szetszwo) + + HADOOP-7224. Add CommandFactory to shell. (Daryn Sharp via szetszwo) + + HADOOP-7014. Generalize CLITest structure and interfaces to facilitate + upstream adoption (e.g. for web testing). (cos) + + HADOOP-7230. Move "fs -help" shell command tests from HDFS to COMMOM; see + also HDFS-1844. (Daryn Sharp via szetszwo) + + HADOOP-7233. Refactor ls to conform to new FsCommand class. (Daryn Sharp + via szetszwo) + + HADOOP-7235. Refactor the tail command to conform to new FsCommand class. + (Daryn Sharp via szetszwo) + + HADOOP-7179. Federation: Improve HDFS startup scripts. (Erik Steffl + and Tanping Wang via suresh) + + HADOOP-7227. Remove protocol version check at proxy creation in Hadoop + RPC. (jitendra) + + HADOOP-7236. Refactor the mkdir command to conform to new FsCommand class. + (Daryn Sharp via szetszwo) + + HADOOP-7250. Refactor the setrep command to conform to new FsCommand class. + (Daryn Sharp via szetszwo) + + HADOOP-7249. Refactor the chmod/chown/chgrp command to conform to new + FsCommand class. (Daryn Sharp via szetszwo) + + HADOOP-7251. Refactor the getmerge command to conform to new FsCommand + class. (Daryn Sharp via szetszwo) + + HADOOP-7265. Keep track of relative paths in PathData. (Daryn Sharp + via szetszwo) + + HADOOP-7238. Refactor the cat and text commands to conform to new FsCommand + class. (Daryn Sharp via szetszwo) + + HADOOP-7271. Standardize shell command error messages. (Daryn Sharp + via szetszwo) + + HADOOP-7272. Remove unnecessary security related info logs. (suresh) + + HADOOP-7275. Refactor the stat command to conform to new FsCommand + class. (Daryn Sharp via szetszwo) + + HADOOP-7237. Refactor the touchz command to conform to new FsCommand + class. (Daryn Sharp via szetszwo) + + HADOOP-7267. Refactor the rm/rmr/expunge commands to conform to new + FsCommand class. (Daryn Sharp via szetszwo) + + HADOOP-7285. Refactor the test command to conform to new FsCommand + class. (Daryn Sharp via todd) + + HADOOP-7289. In ivy.xml, test conf should not extend common conf. + (Eric Yang via szetszwo) + + HADOOP-7291. Update Hudson job not to run test-contrib. (Nigel Daley via eli) + + HADOOP-7286. Refactor the du/dus/df commands to conform to new FsCommand + class. (Daryn Sharp via todd) + + HADOOP-7301. FSDataInputStream should expose a getWrappedStream method. + (Jonathan Hsieh via eli) + + HADOOP-7306. Start metrics system even if config files are missing + (Luke Lu via todd) + + HADOOP-7302. webinterface.private.actions should be renamed and moved to + the MapReduce project. (Ari Rabkin via todd) + + HADOOP-7329. Improve help message for "df" to include "-h" flag. + (Xie Xianshan via todd) + + HADOOP-7320. Refactor the copy and move commands to conform to new + FsCommand class. (Daryn Sharp via todd) + + HADOOP-7312. Update value of hadoop.common.configuration.version. + (Harsh J Chouraria via todd) + + HADOOP-7337. Change PureJavaCrc32 annotations to public stable. (szetszwo) + + HADOOP-7331. Make hadoop-daemon.sh return exit code 1 if daemon processes + did not get started. (Tanping Wang via todd) + + HADOOP-7316. Add public javadocs to FSDataInputStream and + FSDataOutputStream. (eli) + + HADOOP-7323. Add capability to resolve compression codec based on codec + name. (Alejandro Abdelnur via tomwhite) + + HADOOP-1886. Undocumented parameters in FilesSystem. (Frank Conrad via eli) + + HADOOP-7375. Add resolvePath method to FileContext. (Sanjay Radia via eli) + + HADOOP-7383. HDFS needs to export protobuf library dependency in pom. + (todd via eli) + + HADOOP-7374. Don't add tools.jar to the classpath when running Hadoop. + (eli) + + HADOOP-7106. Reorganize project SVN layout to "unsplit" the projects. + (todd, nigel) + + HADOOP-6605. Add JAVA_HOME detection to hadoop-config. (eli) + + HADOOP-7384. Allow test-patch to be more flexible about patch format. (todd) + + HADOOP-6929. RPC should have a way to pass Security information other than + protocol annotations. (sharad and omalley via mahadev) + + HADOOP-7385. Remove StringUtils.stringifyException(ie) in logger functions. + (Bharath Mundlapudi via Tanping Wang). + + HADOOP-310. Additional constructor requested in BytesWritable. (Brock + Noland via atm) + + HADOOP-7429. Add another IOUtils#copyBytes method. (eli) + + HADOOP-7451. Generalize StringUtils#join. (Chris Douglas via mattf) + + HADOOP-7449. Add Data(In,Out)putByteBuffer to work with ByteBuffer similar + to Data(In,Out)putBuffer for byte[]. Merge from yahoo-merge branch, + -r 1079163. Fix missing Apache license headers. (Chris Douglas via mattf) + + HADOOP-7361. Provide an option, -overwrite/-f, in put and copyFromLocal + shell commands. (Uma Maheswara Rao G via szetszwo) + + HADOOP-7430. Improve error message when moving to trash fails due to + quota issue. (Ravi Prakash via mattf) + + HADOOP-7444. Add Checksum API to verify and calculate checksums "in bulk" + (todd) + + HADOOP-7443. Add CRC32C as another DataChecksum implementation (todd) + + HADOOP-7305. Eclipse project files are incomplete. (Niels Basjes via eli) + + HADOOP-7314. Add support for throwing UnknownHostException when a host doesn't + resolve. (Jeffrey Naisbitt via jitendra) + + HADOOP-7465. A several tiny improvements for the LOG format. + (Xie Xianshan via eli) + + HADOOP-7434. Display error when using "daemonlog -setlevel" with + illegal level. (yanjinshuang via eli) + + HADOOP-7463. Adding a configuration parameter to SecurityInfo interface. + (mahadev) + + HADOOP-7298. Add test utility for writing multi-threaded tests. (todd and + Harsh J Chouraria via todd) + + HADOOP-7485. Add -h option to ls to list file sizes in human readable + format. (XieXianshan via suresh) + + HADOOP-7378. Add -d option to ls to not expand directories. + (Daryn Sharp via suresh) + + HADOOP-7474. Refactor ClientCache out of WritableRpcEngine. (jitendra) + + HADOOP-7491. hadoop command should respect HADOOP_OPTS when given + a class name. (eli) + + HADOOP-7178. Add a parameter, useRawLocalFileSystem, to copyToLocalFile(..) + in FileSystem. (Uma Maheswara Rao G via szetszwo) + + HADOOP-6671. Use maven for hadoop common builds. (Alejandro Abdelnur + via tomwhite) + + HADOOP-7502. Make generated sources IDE friendly. + (Alejandro Abdelnur via llu) + + HADOOP-7501. Publish Hadoop Common artifacts (post HADOOP-6671) to Apache + SNAPSHOTs repo. (Alejandro Abdelnur via tomwhite) + + HADOOP-7525. Make arguments to test-patch optional. (tomwhite) + + HADOOP-7472. RPC client should deal with IP address change. + (Kihwal Lee via suresh) + + HADOOP-7499. Add method for doing a sanity check on hostnames in NetUtils. + (Jeffrey Naisbit via mahadev) + + HADOOP-6158. Move CyclicIteration to HDFS. (eli) + + HADOOP-7526. Add TestPath tests for URI conversion and reserved + characters. (eli) + + HADOOP-7531. Add servlet util methods for handling paths in requests. (eli) + + HADOOP-7493. Add ShortWritable. (Uma Maheswara Rao G via szetszwo) + + HADOOP-7555. Add a eclipse-generated files to .gitignore. (atm) + + HADOOP-7264. Bump avro version to at least 1.4.1. (Alejandro Abdelnur via + tomwhite) + + HADOOP-7498. Remove legacy TAR layout creation. (Alejandro Abdelnur via + tomwhite) + + HADOOP-7496. Break Maven TAR & bintar profiles into just LAYOUT & TAR proper. + (Alejandro Abdelnur via tomwhite) + + HADOOP-7561. Make test-patch only run tests for changed modules. (tomwhite) + + HADOOP-7547. Add generic type in WritableComparable subclasses. + (Uma Maheswara Rao G via szetszwo) + + HADOOP-7579. Rename package names from alfredo to auth. + (Alejandro Abdelnur via szetszwo) + + HADOOP-7594. Support HTTP REST in HttpServer. (szetszwo) + + HADOOP-7552. FileUtil#fullyDelete doesn't throw IOE but lists it + in the throws clause. (eli) + + HADOOP-7580. Add a version of getLocalPathForWrite to LocalDirAllocator + which doesn't create dirs. (Chris Douglas & Siddharth Seth via acmurthy) + + HADOOP-7507. Allow ganglia metrics to include the metrics system tags + in the gmetric names. (Alejandro Abdelnur via todd) + + HADOOP-7612. Change test-patch to run tests for all nested modules. + (tomwhite) + + HADOOP-7599. Script improvements to setup a secure Hadoop cluster + (Eric Yang via ddas) + + HADOOP-7639. Enhance HttpServer to allow passing path-specs for filtering, + so that servers like Yarn WebApp can get filtered the paths served by + their own injected servlets. (Thomas Graves via vinodkv) + + HADOOP-7575. Enhanced LocalDirAllocator to support fully-qualified + paths. (Jonathan Eagles via vinodkv) + + HADOOP-7469 Add a standard handler for socket connection problems which + improves diagnostics (Uma Maheswara Rao G and stevel via stevel) + + HADOOP-7710. Added hadoop-setup-application.sh for creating + application directory (Arpit Gupta via Eric Yang) + + HADOOP-7707. Added toggle for dfs.support.append, webhdfs and hadoop proxy + user to setup config script. (Arpit Gupta via Eric Yang) + + HADOOP-7720. Added parameter for HBase user to setup config script. + (Arpit Gupta via Eric Yang) + + HADOOP-7624. Set things up for a top level hadoop-tools module. (tucu) + + HADOOP-7627. Improve MetricsAsserts to give more understandable output + on failure. (todd) + + HADOOP-7642. create hadoop-dist module where TAR stitching would happen. + (Thomas White via tucu) + + HADOOP-7709. Running a set of methods in a Single Test Class. + (Jonathan Eagles via mahadev) + + HADOOP-7705. Add a log4j back end that can push out JSON data, + one per line. (stevel) + + HADOOP-7749. Add a NetUtils createSocketAddr call which provides more + help in exception messages. (todd) + + HADOOP-7762. Common side of MR-2736. (eli) + + HADOOP-7668. Add a NetUtils method that can tell if an InetAddress + belongs to local host. (suresh) + + HADOOP-7509. Improve exception message thrown when Authentication is + required. (Ravi Prakash via suresh) + + HADOOP-7745. Fix wrong variable name in exception message introduced + in HADOOP-7509. (Ravi Prakash via suresh) + + MAPREDUCE-2764. Fix renewal of dfs delegation tokens. (Owen via jitendra) + + HADOOP-7360. Preserve relative paths that do not contain globs in FsShell. + (Daryn Sharp and Kihwal Lee via szetszwo) + + HADOOP-7771. FsShell -copyToLocal, -get, etc. commands throw NPE if the + destination directory does not exist. (John George and Daryn Sharp + via szetszwo) + + HADOOP-7782. Aggregate project javadocs. (tomwhite) + + HADOOP-7789. Improvements to site navigation. (acmurthy) + + OPTIMIZATIONS + + HADOOP-7333. Performance improvement in PureJavaCrc32. (Eric Caspole + via todd) + + HADOOP-7445. Implement bulk checksum verification using efficient native + code. (todd) + + HADOOP-7753. Support fadvise and sync_file_range in NativeIO. Add + ReadaheadPool infrastructure for use in HDFS and MR. (todd) + + HADOOP-7446. Implement CRC32C native code using SSE4.2 instructions. + (Kihwal Lee and todd via todd) + + HADOOP-7763. Add top-level navigation to APT docs. (tomwhite) + + HADOOP-7785. Add equals, hashcode, toString to DataChecksum (todd) + + BUG FIXES + + HADOOP-7740. Fixed security audit logger configuration. (Arpit Gupta via Eric Yang) + + HADOOP-7630. hadoop-metrics2.properties should have a property *.period + set to a default value for metrics. (Eric Yang via mattf) + + HADOOP-7327. FileSystem.listStatus() throws NullPointerException instead of + IOException upon access permission failure. (mattf) + + HADOOP-7015. RawLocalFileSystem#listStatus does not deal with a directory + whose entries are changing (e.g. in a multi-thread or multi-process + environment). (Sanjay Radia via eli) + + HADOOP-7045. TestDU fails on systems with local file systems with + extended attributes. (eli) + + HADOOP-6939. Inconsistent lock ordering in + AbstractDelegationTokenSecretManager. (Todd Lipcon via tomwhite) + + HADOOP-7129. Fix typo in method name getProtocolSigature (todd) + + HADOOP-7048. Wrong description of Block-Compressed SequenceFile Format in + SequenceFile's javadoc. (Jingguo Yao via tomwhite) + + HADOOP-7153. MapWritable violates contract of Map interface for equals() + and hashCode(). (Nicholas Telford via todd) + + HADOOP-6754. DefaultCodec.createOutputStream() leaks memory. + (Aaron Kimball via tomwhite) + + HADOOP-7098. Tasktracker property not set in conf/hadoop-env.sh. + (Bernd Fondermann via tomwhite) + + HADOOP-7131. Exceptions thrown by Text methods should include the causing + exception. (Uma Maheswara Rao G via todd) + + HADOOP-6912. Guard against NPE when calling UGI.isLoginKeytabBased(). + (Kan Zhang via jitendra) + + HADOOP-7204. remove local unused fs variable from CmdHandler + and FsShellPermissions.changePermissions (boryas) + + HADOOP-7210. Chown command is not working from FSShell + (Uma Maheswara Rao G via todd) + + HADOOP-7215. RPC clients must use network interface corresponding to + the host in the client's kerberos principal key. (suresh) + + HADOOP-7019. Refactor build targets to enable faster cross project dev + cycles. (Luke Lu via cos) + + HADOOP-7216. Add FsCommand.runAll() with deprecated annotation for the + transition of Command base class improvement. (Daryn Sharp via szetszwo) + + HADOOP-7207. fs member of FSShell is not really needed (boryas) + + HADOOP-7223. FileContext createFlag combinations are not clearly defined. + (suresh) + + HADOOP-7231. Fix synopsis for -count. (Daryn Sharp via eli). + + HADOOP-7261. Disable IPV6 for junit tests. (suresh) + + HADOOP-7268. FileContext.getLocalFSFileContext() behavior needs to be fixed + w.r.t tokens. (jitendra) + + HADOOP-7290. Unit test failure in + TestUserGroupInformation.testGetServerSideGroups. (Trevor Robison via eli) + + HADOOP-7292. Fix racy test case TestSinkQueue. (Luke Lu via todd) + + HADOOP-7282. ipc.Server.getRemoteIp() may return null. (John George + via szetszwo) + + HADOOP-7208. Fix implementation of equals() and hashCode() in + StandardSocketFactory. (Uma Maheswara Rao G via todd) + + HADOOP-7336. TestFileContextResolveAfs will fail with default + test.build.data property. (jitendra) + + HADOOP-7284 Trash and shell's rm does not work for viewfs (Sanjay Radia) + + HADOOP-7341. Fix options parsing in CommandFormat (Daryn Sharp via todd) + + HADOOP-7353. Cleanup FsShell and prevent masking of RTE stack traces. + (Daryn Sharp via todd) + + HADOOP-7356. RPM packages broke bin/hadoop script in developer environment. + (Eric Yang via todd) + + HADOOP-7389. Use of TestingGroups by tests causes subsequent tests to fail. + (atm via tomwhite) + + HADOOP-7377. Fix command name handling affecting DFSAdmin. (Daryn Sharp + via mattf) + + HADOOP-7402. TestConfiguration doesn't clean up after itself. (atm via eli) + + HADOOP-7428. IPC connection is orphaned with null 'out' member. + (todd via eli) + + HADOOP-7437. IOUtils.copybytes will suppress the stream closure exceptions. + (Uma Maheswara Rao G via szetszwo) + + HADOOP-7090. Fix resource leaks in s3.INode, BloomMapFile, WritableUtils + and CBZip2OutputStream. (Uma Maheswara Rao G via szetszwo) + + HADOOP-7440. HttpServer.getParameterValues throws NPE for missing + parameters. (Uma Maheswara Rao G and todd via todd) + + HADOOP-7442. Docs in core-default.xml still reference deprecated config + "topology.script.file.name" (atm) + + HADOOP-7419. new hadoop-config.sh doesn't manage classpath for + HADOOP_CONF_DIR correctly. (Bing Zheng and todd via todd) + + HADOOP-7448. merge from yahoo-merge branch (via mattf): + -r 1079157: Fix content type for /stacks servlet to be + plain text (Luke Lu) + -r 1079164: No need to escape plain text (Luke Lu) + + HADOOP-7471. The saveVersion.sh script sometimes fails to extract SVN URL. + (Alejandro Abdelnur via eli) + + HADOOP-2081. Configuration getInt, getLong, and getFloat replace + invalid numbers with the default value. (Harsh J via eli) + + HADOOP-7111. Several TFile tests failing when native libraries are + present. (atm) + + HADOOP-7438. Fix deprecated warnings from hadoop-daemon.sh script. + (Ravi Prakash via suresh) + + HADOOP-7468 hadoop-core JAR contains a log4j.properties file. + (Jolly Chen) + + HADOOP-7508. Compiled nativelib is in wrong directory and it is not picked + up by surefire setup. (Alejandro Abdelnur via tomwhite) + + HADOOP-7520. Fix to add distribution management info to hadoop-main + (Alejandro Abdelnur via gkesavan) + + HADOOP-7515. test-patch reports the wrong number of javadoc warnings. + (tomwhite) + + HADOOP-7523. Test org.apache.hadoop.fs.TestFilterFileSystem fails due to + java.lang.NoSuchMethodException. (John Lee via tomwhite) + + HADOOP-7528. Maven build fails in Windows. (Alejandro Abdelnur via + tomwhite) + + HADOOP-7533. Allow test-patch to be run from any subproject directory. + (tomwhite) + + HADOOP-7512. Fix example mistake in WritableComparable javadocs. + (Harsh J via eli) + + HADOOP-7357. hadoop.io.compress.TestCodec#main() should exit with + non-zero exit code if test failed. (Philip Zeyliger via eli) + + HADOOP-6622. Token should not print the password in toString. (eli) + + HADOOP-7529. Fix lock cycles in metrics system. (llu) + + HADOOP-7545. Common -tests JAR should not include properties and configs. + (todd) + + HADOOP-7536. Correct the dependency version regressions introduced in + HADOOP-6671. (Alejandro Abdelnur via tomwhite) + + HADOOP-7566. MR tests are failing webapps/hdfs not found in CLASSPATH. + (Alejandro Abdelnur via mahadev) + + HADOOP-7567. 'mvn eclipse:eclipse' fails for hadoop-alfredo (auth). + (Alejandro Abdelnur via tomwhite) + + HADOOP-7563. Setup HADOOP_HDFS_HOME, HADOOP_MAPRED_HOME and classpath + correction. (Eric Yang via acmurthy) + + HADOOP-7560. Change src layout to be heirarchical. (Alejandro Abdelnur + via acmurthy) + + HADOOP-7576. Fix findbugs warnings and javac warnings in hadoop-auth. + (szetszwo) + + HADOOP-7593. Fix AssertionError in TestHttpServer.testMaxThreads(). + (Uma Maheswara Rao G via szetszwo) + + HADOOP-7598. Fix smart-apply-patch.sh to handle patching from a sub + directory correctly. (Robert Evans via acmurthy) + + HADOOP-7328. When a serializer class is missing, return null, not throw + an NPE. (Harsh J Chouraria via todd) + + HADOOP-7626. Bugfix for a config generator (Eric Yang via ddas) + + HADOOP-7629. Allow immutable FsPermission objects to be used as IPC + parameters. (todd) + + HADOOP-7608. SnappyCodec check for Hadoop native lib is wrong + (Alejandro Abdelnur via todd) + + HADOOP-7637. Fix to include FairScheduler configuration file in + RPM. (Eric Yang via ddas) + + HADOOP-7633. Adds log4j.properties to the hadoop-conf dir on + deploy (Eric Yang via ddas) + + HADOOP-7631. Fixes a config problem to do with running streaming jobs + (Eric Yang via ddas) + + HADOOP-7662. Fixed logs servlet to use the pathspec '/*' instead of '/' + for correct filtering. (Thomas Graves via vinodkv) + + HADOOP-7691. Fixed conflict uid for install packages. (Eric Yang) + + HADOOP-7603. Set hdfs, mapred uid, and hadoop uid to fixed numbers. + (Eric Yang) + + HADOOP-7658. Fixed HADOOP_SECURE_DN_USER environment variable in + hadoop-evn.sh (Eric Yang) + + HADOOP-7684. Added init.d script for jobhistory server and + secondary namenode. (Eric Yang) + + HADOOP-7715. Removed unnecessary security logger configuration. (Eric Yang) + + HADOOP-7685. Improved directory ownership check function in + hadoop-setup-conf.sh. (Eric Yang) + + HADOOP-7711. Fixed recursive sourcing of HADOOP_OPTS environment + variables (Arpit Gupta via Eric Yang) + + HADOOP-7681. Fixed security and hdfs audit log4j properties + (Arpit Gupta via Eric Yang) + + HADOOP-7708. Fixed hadoop-setup-conf.sh to handle config files + consistently. (Eric Yang) + + HADOOP-7724. Fixed hadoop-setup-conf.sh to put proxy user in + core-site.xml. (Arpit Gupta via Eric Yang) + + HADOOP-7755. Detect MapReduce PreCommit Trunk builds silently failing + when running test-patch.sh. (Jonathan Eagles via tomwhite) + + HADOOP-7744. Ensure failed tests exit with proper error code. (Jonathan + Eagles via acmurthy) + + HADOOP-7764. Allow HttpServer to set both ACL list and path spec filters. + (Jonathan Eagles via acmurthy) + + HADOOP-7766. The auth to local mappings are not being respected, with webhdfs + and security enabled. (jitendra) + + HADOOP-7721. Add log before login in KerberosAuthenticationHandler. + (jitendra) + + HADOOP-7778. FindBugs warning in Token.getKind(). (tomwhite) + + HADOOP-7798. Add support gpg signatures for maven release artifacts. + (cutting via acmurthy) + + HADOOP-7797. Fix top-level pom.xml to refer to correct staging maven + repository. (omalley via acmurthy) + + HADOOP-7101. UserGroupInformation.getCurrentUser() fails when called from + non-Hadoop JAAS context. (todd) + +Release 0.22.1 - Unreleased + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + OPTIMIZATIONS + + BUG FIXES + + HADOOP-7937. Forward port SequenceFile#syncFs and friends from Hadoop 1.x. + (tomwhite) + +Release 0.22.0 - 2011-11-29 + + INCOMPATIBLE CHANGES + + HADOOP-7137. Remove hod contrib. (nigel via eli) + + NEW FEATURES + + HADOOP-6791. Refresh for proxy superuser config + (common part for HDFS-1096) (boryas) + + HADOOP-6581. Add authenticated TokenIdentifiers to UGI so that + they can be used for authorization (Kan Zhang and Jitendra Pandey + via jghoman) + + HADOOP-6584. Provide Kerberized SSL encryption for webservices. + (jghoman and Kan Zhang via jghoman) + + HADOOP-6853. Common component of HDFS-1045. (jghoman) + + HADOOP-6859 - Introduce additional statistics to FileSystem to track + file system operations (suresh) + + HADOOP-6870. Add a new API getFiles to FileSystem and FileContext that + lists all files under the input path or the subtree rooted at the + input path if recursive is true. Block locations are returned together + with each file's status. (hairong) + + HADOOP-6888. Add a new FileSystem API closeAllForUGI(..) for closing all + file systems associated with a particular UGI. (Devaraj Das and Kan Zhang + via szetszwo) + + HADOOP-6892. Common component of HDFS-1150 (Verify datanodes' identities + to clients in secure clusters) (jghoman) + + HADOOP-6889. Make RPC to have an option to timeout. (hairong) + + HADOOP-6996. Allow CodecFactory to return a codec object given a codec' + class name. (hairong) + + HADOOP-7013. Add boolean field isCorrupt to BlockLocation. + (Patrick Kling via hairong) + + HADOOP-6978. Adds support for NativeIO using JNI. + (Todd Lipcon, Devaraj Das & Owen O'Malley via ddas) + + HADOOP-7134. configure files that are generated as part of the released + tarball need to have executable bit set. (Roman Shaposhnik via cos) + + IMPROVEMENTS + + HADOOP-6644. util.Shell getGROUPS_FOR_USER_COMMAND method name + - should use common naming convention (boryas) + + HADOOP-6778. add isRunning() method to + AbstractDelegationTokenSecretManager (for HDFS-1044) (boryas) + + HADOOP-6633. normalize property names for JT/NN kerberos principal + names in configuration (boryas) + + HADOOP-6627. "Bad Connection to FS" message in FSShell should print + message from the exception (boryas) + + HADOOP-6600. mechanism for authorization check for inter-server + protocols. (boryas) + + HADOOP-6623. Add StringUtils.split for non-escaped single-character + separator. (Todd Lipcon via tomwhite) + + HADOOP-6761. The Trash Emptier has the ability to run more frequently. + (Dmytro Molkov via dhruba) + + HADOOP-6714. Resolve compressed files using CodecFactory in FsShell::text. + (Patrick Angeles via cdouglas) + + HADOOP-6661. User document for UserGroupInformation.doAs. + (Jitendra Pandey via jghoman) + + HADOOP-6674. Makes use of the SASL authentication options in the + SASL RPC. (Jitendra Pandey via ddas) + + HADOOP-6526. Need mapping from long principal names to local OS + user names. (boryas) + + HADOOP-6814. Adds an API in UserGroupInformation to get the real + authentication method of a passed UGI. (Jitendra Pandey via ddas) + + HADOOP-6756. Documentation for common configuration keys. + (Erik Steffl via shv) + + HADOOP-6835. Add support for concatenated gzip input. (Greg Roelofs via + cdouglas) + + HADOOP-6845. Renames the TokenStorage class to Credentials. + (Jitendra Pandey via ddas) + + HADOOP-6826. FileStatus needs unit tests. (Rodrigo Schmidt via Eli + Collins) + + HADOOP-6905. add buildDTServiceName method to SecurityUtil + (as part of MAPREDUCE-1718) (boryas) + + HADOOP-6632. Adds support for using different keytabs for different + servers in a Hadoop cluster. In the earier implementation, all servers + of a certain type (like TaskTracker), would have the same keytab and the + same principal. Now the principal name is a pattern that has _HOST in it. + (Kan Zhang & Jitendra Pandey via ddas) + + HADOOP-6861. Adds new non-static methods in Credentials to read and + write token storage file. (Jitendra Pandey & Owen O'Malley via ddas) + + HADOOP-6877. Common part of HDFS-1178 (NameNode servlets should communicate + with NameNode directrly). (Kan Zhang via jghoman) + + HADOOP-6475. Adding some javadoc to Server.RpcMetrics, UGI. + (Jitendra Pandey and borya via jghoman) + + HADOOP-6656. Adds a thread in the UserGroupInformation to renew TGTs + periodically. (Owen O'Malley and ddas via ddas) + + HADOOP-6890. Improve listFiles API introduced by HADOOP-6870. (hairong) + + HADOOP-6862. Adds api to add/remove user and group to AccessControlList + (amareshwari) + + HADOOP-6911. doc update for DelegationTokenFetcher (boryas) + + HADOOP-6900. Make the iterator returned by FileSystem#listLocatedStatus to + throw IOException rather than RuntimeException when there is an IO error + fetching the next file. (hairong) + + HADOOP-6905. Better logging messages when a delegation token is invalid. + (Kan Zhang via jghoman) + + HADOOP-6693. Add metrics to track kerberol login activity. (suresh) + + HADOOP-6803. Add native gzip read/write coverage to TestCodec. + (Eli Collins via tomwhite) + + HADOOP-6950. Suggest that HADOOP_CLASSPATH should be preserved in + hadoop-env.sh.template. (Philip Zeyliger via Eli Collins) + + HADOOP-6922. Make AccessControlList a writable and update documentation + for Job ACLs. (Ravi Gummadi via vinodkv) + + HADOOP-6965. Introduces checks for whether the original tgt is valid + in the reloginFromKeytab method. + + HADOOP-6856. Simplify constructors for SequenceFile, and MapFile. (omalley) + + HADOOP-6987. Use JUnit Rule to optionally fail test cases that run more + than 10 seconds (jghoman) + + HADOOP-7005. Update test-patch.sh to remove callback to Hudson. (nigel) + + HADOOP-6985. Suggest that HADOOP_OPTS be preserved in + hadoop-env.sh.template. (Ramkumar Vadali via cutting) + + HADOOP-7007. Update the hudson-test-patch ant target to work with the + latest test-patch.sh script (gkesavan) + + HADOOP-7010. Typo in FileSystem.java. (Jingguo Yao via eli) + + HADOOP-7009. MD5Hash provides a public factory method that creates an + instance of thread local MessageDigest. (hairong) + + HADOOP-7008. Enable test-patch.sh to have a configured number of + acceptable findbugs and javadoc warnings. (nigel and gkesavan) + + HADOOP-6818. Provides a JNI implementation of group resolution. (ddas) + + HADOOP-6943. The GroupMappingServiceProvider interface should be public. + (Aaron T. Myers via tomwhite) + + HADOOP-4675. Current Ganglia metrics implementation is incompatible with + Ganglia 3.1. (Brian Bockelman via tomwhite) + + HADOOP-6977. Herriot daemon clients should vend statistics (cos) + + HADOOP-7024. Create a test method for adding file systems during tests. + (Kan Zhang via jghoman) + + HADOOP-6903. Make AbstractFSileSystem methods and some FileContext methods + to be public. (Sanjay Radia) + + HADOOP-7034. Add TestPath tests to cover dot, dot dot, and slash + normalization. (eli) + + HADOOP-7032. Assert type constraints in the FileStatus constructor. (eli) + + HADOOP-6562. FileContextSymlinkBaseTest should use FileContextTestHelper. + (eli) + + HADOOP-7028. ant eclipse does not include requisite ant.jar in the + classpath. (Patrick Angeles via eli) + + HADOOP-6298. Add copyBytes to Text and BytesWritable. (omalley) + + HADOOP-6578. Configuration should trim whitespace around a lot of value + types. (Michele Catasta via eli) + + HADOOP-6811. Remove EC2 bash scripts. They are replaced by Apache Whirr + (incubating, http://incubator.apache.org/whirr). (tomwhite) + + HADOOP-7102. Remove "fs.ramfs.impl" field from core-deafult.xml (shv) + + HADOOP-7104. Remove unnecessary DNS reverse lookups from RPC layer + (Kan Zhang via todd) + + HADOOP-6056. Use java.net.preferIPv4Stack to force IPv4. + (Michele Catasta via shv) + + HADOOP-7110. Implement chmod with JNI. (todd) + + HADOOP-6812. Change documentation for correct placement of configuration + variables: mapreduce.reduce.input.buffer.percent, + mapreduce.task.io.sort.factor, mapreduce.task.io.sort.mb + (Chris Douglas via shv) + + HADOOP-6436. Remove auto-generated native build files. (rvs via eli) + + HADOOP-6970. SecurityAuth.audit should be generated under /build. (boryas) + + HADOOP-7154. Should set MALLOC_ARENA_MAX in hadoop-env.sh (todd) + + HADOOP-7187. Fix socket leak in GangliaContext. (Uma Maheswara Rao G + via szetszwo) + + HADOOP-7241. fix typo of command 'hadoop fs -help tail'. + (Wei Yongjun via eli) + + HADOOP-7244. Documentation change for updated configuration keys. + (tomwhite via eli) + + HADOOP-7189. Add ability to enable 'debug' property in JAAS configuration. + (Ted Yu via todd) + + HADOOP-7192. Update fs -stat docs to reflect the format features. (Harsh + J Chouraria via todd) + + HADOOP-7355 Add audience and stability annotations to HttpServer class + (stack) + + HADOOP-7346. Send back nicer error message to clients using outdated IPC + version. (todd) + + HADOOP-7335. Force entropy to come from non-true random for tests. + (todd via eli) + + HADOOP-7325. The hadoop command should not accept class names starting with + a hyphen. (Brock Noland via todd) + + HADOOP-7772. javadoc the topology classes (stevel) + + HADOOP-7786. Remove HDFS-specific config keys defined in FsConfig. (eli) + + HADOOP-7861. changes2html.pl generates links to HADOOP, HDFS, and MAPREDUCE + jiras. (shv) + + OPTIMIZATIONS + + HADOOP-6884. Add LOG.isDebugEnabled() guard for each LOG.debug(..). + (Erik Steffl via szetszwo) + + HADOOP-6683. ZlibCompressor does not fully utilize the buffer. + (Kang Xiao via eli) + + HADOOP-6949. Reduce RPC packet size of primitive arrays using + ArrayPrimitiveWritable instead of ObjectWritable. (Matt Foley via suresh) + + BUG FIXES + + HADOOP-6638. try to relogin in a case of failed RPC connection (expired + tgt) only in case the subject is loginUser or proxyUgi.realUser. (boryas) + + HADOOP-6781. security audit log shouldn't have exception in it. (boryas) + + HADOOP-6612. Protocols RefreshUserToGroupMappingsProtocol and + RefreshAuthorizationPolicyProtocol will fail with security enabled (boryas) + + HADOOP-6764. Remove verbose logging from the Groups class. (Boris Shkolnik) + + HADOOP-6730. Bug in FileContext#copy and provide base class for + FileContext tests. (Ravi Phulari via jghoman) + + HADOOP-6669. Respect compression configuration when creating DefaultCodec + instances. (Koji Noguchi via cdouglas) + + HADOOP-6747. TestNetUtils fails on Mac OS X. (Todd Lipcon via jghoman) + + HADOOP-6787. Factor out glob pattern code from FileContext and + Filesystem. Also fix bugs identified in HADOOP-6618 and make the + glob pattern code less restrictive and more POSIX standard + compliant. (Luke Lu via eli) + + HADOOP-6649. login object in UGI should be inside the subject (jnp via + boryas) + + HADOOP-6687. user object in the subject in UGI should be reused in case + of a relogin. (jnp via boryas) + + HADOOP-6603. Provide workaround for issue with Kerberos not resolving + cross-realm principal (Kan Zhang and Jitendra Pandey via jghoman) + + HADOOP-6620. NPE if renewer is passed as null in getDelegationToken. + (Jitendra Pandey via jghoman) + + HADOOP-6613. Moves the RPC version check ahead of the AuthMethod check. + (Kan Zhang via ddas) + + HADOOP-6682. NetUtils:normalizeHostName does not process hostnames starting + with [a-f] correctly. (jghoman) + + HADOOP-6652. Removes the unnecessary cache from + ShellBasedUnixGroupsMapping. (ddas) + + HADOOP-6815. refreshSuperUserGroupsConfiguration should use server side + configuration for the refresh (boryas) + + HADOOP-6648. Adds a check for null tokens in Credentials.addToken api. + (ddas) + + HADOOP-6647. balancer fails with "is not authorized for protocol + interface NamenodeProtocol" in secure environment (boryas) + + HADOOP-6834. TFile.append compares initial key against null lastKey + (hong tang via mahadev) + + HADOOP-6670. Use the UserGroupInformation's Subject as the criteria for + equals and hashCode. (Owen O'Malley and Kan Zhang via ddas) + + HADOOP-6536. Fixes FileUtil.fullyDelete() not to delete the contents of + the sym-linked directory. (Ravi Gummadi via amareshwari) + + HADOOP-6873. using delegation token over hftp for long + running clients (boryas) + + HADOOP-6706. Improves the sasl failure handling due to expired tickets, + and other server detected failures. (Jitendra Pandey and ddas via ddas) + + HADOOP-6715. Fixes AccessControlList.toString() to return a descriptive + String representation of the ACL. (Ravi Gummadi via amareshwari) + + HADOOP-6885. Fix java doc warnings in Groups and + RefreshUserMappingsProtocol. (Eli Collins via jghoman) + + HADOOP-6482. GenericOptionsParser constructor that takes Options and + String[] ignores options. (Eli Collins via jghoman) + + HADOOP-6906. FileContext copy() utility doesn't work with recursive + copying of directories. (vinod k v via mahadev) + + HADOOP-6453. Hadoop wrapper script shouldn't ignore an existing + JAVA_LIBRARY_PATH. (Chad Metcalf via jghoman) + + HADOOP-6932. Namenode start (init) fails because of invalid kerberos + key, even when security set to "simple" (boryas) + + HADOOP-6913. Circular initialization between UserGroupInformation and + KerberosName (Kan Zhang via boryas) + + HADOOP-6907. Rpc client doesn't use the per-connection conf to figure + out server's Kerberos principal (Kan Zhang via hairong) + + HADOOP-6938. ConnectionId.getRemotePrincipal() should check if security + is enabled. (Kan Zhang via hairong) + + HADOOP-6930. AvroRpcEngine doesn't work with generated Avro code. + (sharad) + + HADOOP-6940. RawLocalFileSystem's markSupported method misnamed + markSupport. (Tom White via eli). + + HADOOP-6951. Distinct minicluster services (e.g. NN and JT) overwrite each + other's service policies. (Aaron T. Myers via tomwhite) + + HADOOP-6879. Provide SSH based (Jsch) remote execution API for system + tests (cos) + + HADOOP-6989. Correct the parameter for SetFile to set the value type + for SetFile to be NullWritable instead of the key. (cdouglas via omalley) + + HADOOP-6984. Combine the compress kind and the codec in the same option + for SequenceFiles. (cdouglas via omalley) + + HADOOP-6933. TestListFiles is flaky. (Todd Lipcon via tomwhite) + + HADOOP-6947. Kerberos relogin should set refreshKrb5Config to true. + (Todd Lipcon via tomwhite) + + HADOOP-7006. Fix 'fs -getmerge' command to not be a no-op. + (Chris Nauroth via cutting) + + HADOOP-6663. BlockDecompressorStream get EOF exception when decompressing + the file compressed from empty file. (Kang Xiao via tomwhite) + + HADOOP-6991. Fix SequenceFile::Reader to honor file lengths and call + openFile (cdouglas via omalley) + + HADOOP-7011. Fix KerberosName.main() to not throw an NPE. + (Aaron T. Myers via tomwhite) + + HADOOP-6975. Integer overflow in S3InputStream for blocks > 2GB. + (Patrick Kling via tomwhite) + + HADOOP-6758. MapFile.fix does not allow index interval definition. + (Gianmarco De Francisci Morales via tomwhite) + + HADOOP-6926. SocketInputStream incorrectly implements read(). + (Todd Lipcon via tomwhite) + + HADOOP-6899 RawLocalFileSystem#setWorkingDir() does not work for relative names + (Sanjay Radia) + + HADOOP-6496. HttpServer sends wrong content-type for CSS files + (and others). (Todd Lipcon via tomwhite) + + HADOOP-7057. IOUtils.readFully and IOUtils.skipFully have typo in + exception creation's message. (cos) + + HADOOP-7038. saveVersion script includes an additional \r while running + whoami under windows. (Wang Xu via cos) + + HADOOP-7082. Configuration.writeXML should not hold lock while outputting + (todd) + + HADOOP-7070. JAAS configuration should delegate unknown application names + to pre-existing configuration. (todd) + + HADOOP-7087. SequenceFile.createWriter ignores FileSystem parameter (todd) + + HADOOP-7091. reloginFromKeytab() should happen even if TGT can't be found. + (Kan Zhang via jghoman) + + HADOOP-7100. Fix build to not refer to contrib/ec2 removed by HADOOP-6811 + (todd) + + HADOOP-7097. JAVA_LIBRARY_PATH missing base directory. (Noah Watkins via + todd) + + HADOOP-7093. Servlets should default to text/plain (todd) + + HADOOP-7089. Fix link resolution logic in hadoop-config.sh. (eli) + + HADOOP-7046. Fix Findbugs warning in Configuration. (Po Cheung via shv) + + HADOOP-7118. Fix NPE in Configuration.writeXml (todd) + + HADOOP-7122. Fix thread leak when shell commands time out. (todd) + + HADOOP-7126. Fix file permission setting for RawLocalFileSystem on Windows. + (Po Cheung via shv) + + HADOOP-6642. Fix javac, javadoc, findbugs warnings related to security work. + (Chris Douglas, Po Cheung via shv) + + HADOOP-7140. IPC Reader threads do not stop when server stops (todd) + + HADOOP-7094. hadoop.css got lost during project split (cos) + + HADOOP-7145. Configuration.getLocalPath should trim whitespace from + the provided directories. (todd) + + HADOOP-7156. Workaround for unsafe implementations of getpwuid_r (todd) + + HADOOP-6898. FileSystem.copyToLocal creates files with 777 permissions. + (Aaron T. Myers via tomwhite) + + HADOOP-7229. Do not default to an absolute path for kinit in Kerberos + auto-renewal thread. (Aaron T. Myers via todd) + + HADOOP-7172. SecureIO should not check owner on non-secure + clusters that have no native support. (todd via eli) + + HADOOP-7184. Remove deprecated config local.cache.size from + core-default.xml (todd) + + HADOOP-7245. FsConfig should use constants in CommonConfigurationKeys. + (tomwhite via eli) + + HADOOP-7068. Ivy resolve force mode should be turned off by default. + (Luke Lu via tomwhite) + + HADOOP-7296. The FsPermission(FsPermission) constructor does not use the + sticky bit. (Siddharth Seth via tomwhite) + + HADOOP-7300. Configuration methods that return collections are inconsistent + about mutability. (todd) + + HADOOP-7305. Eclipse project classpath should include tools.jar from JDK. + (Niels Basjes via todd) + + HADOOP-7318. MD5Hash factory should reset the digester it returns. + (todd via eli) + + HADOOP-7287. Configuration deprecation mechanism doesn't work properly for + GenericOptionsParser and Tools. (Aaron T. Myers via todd) + + HADOOP-7146. RPC server leaks file descriptors (todd) + + HADOOP-7276. Hadoop native builds fail on ARM due to -m32 (Trevor Robinson + via eli) + + HADOOP-7121. Exceptions while serializing IPC call responses are not + handled well. (todd) + + HADOOP-7351 Regression: HttpServer#getWebAppsPath used to be protected + so subclasses could supply alternate webapps path but it was made private + by HADOOP-6461 (Stack) + + HADOOP-7349. HADOOP-7121 accidentally disabled some tests in TestIPC. + (todd) + + HADOOP-7390. VersionInfo not generated properly in git after unsplit. (todd + via atm) + + HADOOP-7568. SequenceFile should not print into stdout. + (Plamen Jeliazkov via shv) + + HADOOP-7663. Fix TestHDFSTrash failure. (Mayank Bansal via shv) + + HADOOP-7457. Remove out-of-date Chinese language documentation. + (Jakob Homan via eli) + + HADOOP-7783. Add more symlink tests that cover intermediate links. (eli) + +Release 0.21.1 - Unreleased + + IMPROVEMENTS + + HADOOP-6934. Test for ByteWritable comparator. + (Johannes Zillmann via Eli Collins) + + HADOOP-6786. test-patch needs to verify Herriot integrity (cos) + + HADOOP-7177. CodecPool should report which compressor it is using. + (Allen Wittenauer via eli) + + BUG FIXES + + HADOOP-6925. BZip2Codec incorrectly implements read(). + (Todd Lipcon via Eli Collins) + + HADOOP-6833. IPC leaks call parameters when exceptions thrown. + (Todd Lipcon via Eli Collins) + + HADOOP-6971. Clover build doesn't generate per-test coverage (cos) + + HADOOP-6993. Broken link on cluster setup page of docs. (eli) + + HADOOP-6944. [Herriot] Implement a functionality for getting proxy users + definitions like groups and hosts. (Vinay Thota via cos) + + HADOOP-6954. Sources JARs are not correctly published to the Maven + repository. (tomwhite) + + HADOOP-7052. misspelling of threshold in conf/log4j.properties. + (Jingguo Yao via eli) + + HADOOP-7053. wrong FSNamesystem Audit logging setting in + conf/log4j.properties. (Jingguo Yao via eli) + + HADOOP-7120. Fix a syntax error in test-patch.sh. (szetszwo) + + HADOOP-7162. Rmove a duplicated call FileSystem.listStatus(..) in FsShell. + (Alexey Diomin via szetszwo) + + HADOOP-7117. Remove fs.checkpoint.* from core-default.xml and replace + fs.checkpoint.* with dfs.namenode.checkpoint.* in documentations. + (Harsh J Chouraria via szetszwo) + + HADOOP-7193. Correct the "fs -touchz" command help message. + (Uma Maheswara Rao G via szetszwo) + + HADOOP-7174. Null is displayed in the "fs -copyToLocal" command. + (Uma Maheswara Rao G via szetszwo) + + HADOOP-7194. Fix resource leak in IOUtils.copyBytes(..). + (Devaraj K via szetszwo) + + HADOOP-7183. WritableComparator.get should not cache comparator objects. + (tomwhite via eli) + +Release 0.21.0 - 2010-08-13 + + INCOMPATIBLE CHANGES + + HADOOP-4895. Remove deprecated methods DFSClient.getHints(..) and + DFSClient.isDirectory(..). (szetszwo) + + HADOOP-4941. Remove deprecated FileSystem methods: getBlockSize(Path f), + getLength(Path f) and getReplication(Path src). (szetszwo) + + HADOOP-4648. Remove obsolete, deprecated InMemoryFileSystem and + ChecksumDistributedFileSystem. (cdouglas via szetszwo) + + HADOOP-4940. Remove a deprecated method FileSystem.delete(Path f). (Enis + Soztutar via szetszwo) + + HADOOP-4010. Change semantics for LineRecordReader to read an additional + line per split- rather than moving back one character in the stream- to + work with splittable compression codecs. (Abdul Qadeer via cdouglas) + + HADOOP-5094. Show hostname and separate live/dead datanodes in DFSAdmin + report. (Jakob Homan via szetszwo) + + HADOOP-4942. Remove deprecated FileSystem methods getName() and + getNamed(String name, Configuration conf). (Jakob Homan via szetszwo) + + HADOOP-5486. Removes the CLASSPATH string from the command line and instead + exports it in the environment. (Amareshwari Sriramadasu via ddas) + + HADOOP-2827. Remove deprecated NetUtils::getServerAddress. (cdouglas) + + HADOOP-5681. Change examples RandomWriter and RandomTextWriter to + use new mapreduce API. (Amareshwari Sriramadasu via sharad) + + HADOOP-5680. Change org.apache.hadoop.examples.SleepJob to use new + mapreduce api. (Amareshwari Sriramadasu via sharad) + + HADOOP-5699. Change org.apache.hadoop.examples.PiEstimator to use + new mapreduce api. (Amareshwari Sriramadasu via sharad) + + HADOOP-5720. Introduces new task types - JOB_SETUP, JOB_CLEANUP + and TASK_CLEANUP. Removes the isMap methods from TaskID/TaskAttemptID + classes. (ddas) + + HADOOP-5668. Change TotalOrderPartitioner to use new API. (Amareshwari + Sriramadasu via cdouglas) + + HADOOP-5738. Split "waiting_tasks" JobTracker metric into waiting maps and + waiting reduces. (Sreekanth Ramakrishnan via cdouglas) + + HADOOP-5679. Resolve findbugs warnings in core/streaming/pipes/examples. + (Jothi Padmanabhan via sharad) + + HADOOP-4359. Support for data access authorization checking on Datanodes. + (Kan Zhang via rangadi) + + HADOOP-5690. Change org.apache.hadoop.examples.DBCountPageView to use + new mapreduce api. (Amareshwari Sriramadasu via sharad) + + HADOOP-5694. Change org.apache.hadoop.examples.dancing to use new + mapreduce api. (Amareshwari Sriramadasu via sharad) + + HADOOP-5696. Change org.apache.hadoop.examples.Sort to use new + mapreduce api. (Amareshwari Sriramadasu via sharad) + + HADOOP-5698. Change org.apache.hadoop.examples.MultiFileWordCount to + use new mapreduce api. (Amareshwari Sriramadasu via sharad) + + HADOOP-5913. Provide ability to an administrator to stop and start + job queues. (Rahul Kumar Singh and Hemanth Yamijala via yhemanth) + + MAPREDUCE-711. Removed Distributed Cache from Common, to move it + under Map/Reduce. (Vinod Kumar Vavilapalli via yhemanth) + + HADOOP-6201. Change FileSystem::listStatus contract to throw + FileNotFoundException if the directory does not exist, rather than letting + this be implementation-specific. (Jakob Homan via cdouglas) + + HADOOP-6230. Moved process tree and memory calculator related classes + from Common to Map/Reduce. (Vinod Kumar Vavilapalli via yhemanth) + + HADOOP-6203. FsShell rm/rmr error message indicates exceeding Trash quota + and suggests using -skpTrash, when moving to trash fails. + (Boris Shkolnik via suresh) + + HADOOP-6303. Eclipse .classpath template has outdated jar files and is + missing some new ones. (cos) + + HADOOP-6396. Fix uninformative exception message when unable to parse + umask. (jghoman) + + HADOOP-6299. Reimplement the UserGroupInformation to use the OS + specific and Kerberos JAAS login. (omalley) + + HADOOP-6686. Remove redundant exception class name from the exception + message for the exceptions thrown at RPC client. (suresh) + + HADOOP-6701. Fix incorrect exit codes returned from chmod, chown and chgrp + commands from FsShell. (Ravi Phulari via suresh) + + NEW FEATURES + + HADOOP-6332. Large-scale Automated Test Framework. (sharad, Sreekanth + Ramakrishnan, at all via cos) + + HADOOP-4268. Change fsck to use ClientProtocol methods so that the + corresponding permission requirement for running the ClientProtocol + methods will be enforced. (szetszwo) + + HADOOP-3953. Implement sticky bit for directories in HDFS. (Jakob Homan + via szetszwo) + + HADOOP-4368. Implement df in FsShell to show the status of a FileSystem. + (Craig Macdonald via szetszwo) + + HADOOP-3741. Add a web ui to the SecondaryNameNode for showing its status. + (szetszwo) + + HADOOP-5018. Add pipelined writers to Chukwa. (Ari Rabkin via cdouglas) + + HADOOP-5052. Add an example computing exact digits of pi using the + Bailey-Borwein-Plouffe algorithm. (Tsz Wo (Nicholas), SZE via cdouglas) + + HADOOP-4927. Adds a generic wrapper around outputformat to allow creation of + output on demand (Jothi Padmanabhan via ddas) + + HADOOP-5144. Add a new DFSAdmin command for changing the setting of restore + failed storage replicas in namenode. (Boris Shkolnik via szetszwo) + + HADOOP-5258. Add a new DFSAdmin command to print a tree of the rack and + datanode topology as seen by the namenode. (Jakob Homan via szetszwo) + + HADOOP-4756. A command line tool to access JMX properties on NameNode + and DataNode. (Boris Shkolnik via rangadi) + + HADOOP-4539. Introduce backup node and checkpoint node. (shv) + + HADOOP-5363. Add support for proxying connections to multiple clusters with + different versions to hdfsproxy. (Zhiyong Zhang via cdouglas) + + HADOOP-5528. Add a configurable hash partitioner operating on ranges of + BinaryComparable keys. (Klaas Bosteels via shv) + + HADOOP-5257. HDFS servers may start and stop external components through + a plugin interface. (Carlos Valiente via dhruba) + + HADOOP-5450. Add application-specific data types to streaming's typed bytes + interface. (Klaas Bosteels via omalley) + + HADOOP-5518. Add contrib/mrunit, a MapReduce unit test framework. + (Aaron Kimball via cutting) + + HADOOP-5469. Add /metrics servlet to daemons, providing metrics + over HTTP as either text or JSON. (Philip Zeyliger via cutting) + + HADOOP-5467. Introduce offline fsimage image viewer. (Jakob Homan via shv) + + HADOOP-5752. Add a new hdfs image processor, Delimited, to oiv. (Jakob + Homan via szetszwo) + + HADOOP-5266. Adds the capability to do mark/reset of the reduce values + iterator in the Context object API. (Jothi Padmanabhan via ddas) + + HADOOP-5745. Allow setting the default value of maxRunningJobs for all + pools. (dhruba via matei) + + HADOOP-5643. Adds a way to decommission TaskTrackers while the JobTracker + is running. (Amar Kamat via ddas) + + HADOOP-4829. Allow FileSystem shutdown hook to be disabled. + (Todd Lipcon via tomwhite) + + HADOOP-5815. Sqoop: A database import tool for Hadoop. + (Aaron Kimball via tomwhite) + + HADOOP-4861. Add disk usage with human-readable size (-duh). + (Todd Lipcon via tomwhite) + + HADOOP-5844. Use mysqldump when connecting to local mysql instance in Sqoop. + (Aaron Kimball via tomwhite) + + HADOOP-5976. Add a new command, classpath, to the hadoop script. (Owen + O'Malley and Gary Murry via szetszwo) + + HADOOP-6120. Add support for Avro specific and reflect data. + (sharad via cutting) + + HADOOP-6226. Moves BoundedByteArrayOutputStream from the tfile package to + the io package and makes it available to other users (MAPREDUCE-318). + (Jothi Padmanabhan via ddas) + + HADOOP-6105. Adds support for automatically handling deprecation of + configuration keys. (V.V.Chaitanya Krishna via yhemanth) + + HADOOP-6235. Adds new method to FileSystem for clients to get server + defaults. (Kan Zhang via suresh) + + HADOOP-6234. Add new option dfs.umaskmode to set umask in configuration + to use octal or symbolic instead of decimal. (Jakob Homan via suresh) + + HADOOP-5073. Add annotation mechanism for interface classification. + (Jakob Homan via suresh) + + HADOOP-4012. Provide splitting support for bzip2 compressed files. (Abdul + Qadeer via cdouglas) + + HADOOP-6246. Add backward compatibility support to use deprecated decimal + umask from old configuration. (Jakob Homan via suresh) + + HADOOP-4952. Add new improved file system interface FileContext for the + application writer (Sanjay Radia via suresh) + + HADOOP-6170. Add facility to tunnel Avro RPCs through Hadoop RPCs. + This permits one to take advantage of both Avro's RPC versioning + features and Hadoop's proven RPC scalability. (cutting) + + HADOOP-6267. Permit building contrib modules located in external + source trees. (Todd Lipcon via cutting) + + HADOOP-6240. Add new FileContext rename operation that posix compliant + that allows overwriting existing destination. (suresh) + + HADOOP-6204. Implementing aspects development and fault injeciton + framework for Hadoop (cos) + + HADOOP-6313. Implement Syncable interface in FSDataOutputStream to expose + flush APIs to application users. (Hairong Kuang via suresh) + + HADOOP-6284. Add a new parameter, HADOOP_JAVA_PLATFORM_OPTS, to + hadoop-config.sh so that it allows setting java command options for + JAVA_PLATFORM. (Koji Noguchi via szetszwo) + + HADOOP-6337. Updates FilterInitializer class to be more visible, + and the init of the class is made to take a Configuration argument. + (Jakob Homan via ddas) + + Hadoop-6223. Add new file system interface AbstractFileSystem with + implementation of some file systems that delegate to old FileSystem. + (Sanjay Radia via suresh) + + HADOOP-6433. Introduce asychronous deletion of files via a pool of + threads. This can be used to delete files in the Distributed + Cache. (Zheng Shao via dhruba) + + HADOOP-6415. Adds a common token interface for both job token and + delegation token. (Kan Zhang via ddas) + + HADOOP-6408. Add a /conf servlet to dump running configuration. + (Todd Lipcon via tomwhite) + + HADOOP-6520. Adds APIs to read/write Token and secret keys. Also + adds the automatic loading of tokens into UserGroupInformation + upon login. The tokens are read from a file specified in the + environment variable. (ddas) + + HADOOP-6419. Adds SASL based authentication to RPC. + (Kan Zhang via ddas) + + HADOOP-6510. Adds a way for superusers to impersonate other users + in a secure environment. (Jitendra Nath Pandey via ddas) + + HADOOP-6421. Adds Symbolic links to FileContext, AbstractFileSystem. + It also adds a limited implementation for the local file system + (RawLocalFs) that allows local symlinks. (Eli Collins via Sanjay Radia) + + HADOOP-6577. Add hidden configuration option "ipc.server.max.response.size" + to change the default 1 MB, the maximum size when large IPC handler + response buffer is reset. (suresh) + + HADOOP-6568. Adds authorization for the default servlets. + (Vinod Kumar Vavilapalli via ddas) + + HADOOP-6586. Log authentication and authorization failures and successes + for RPC (boryas) + + HADOOP-6580. UGI should contain authentication method. (jnp via boryas) + + HADOOP-6657. Add a capitalization method to StringUtils for MAPREDUCE-1545. + (Luke Lu via Steve Loughran) + + HADOOP-6692. Add FileContext#listStatus that returns an iterator. + (hairong) + + HADOOP-6869. Functionality to create file or folder on a remote daemon + side (Vinay Thota via cos) + + IMPROVEMENTS + + HADOOP-6798. Align Ivy version for all Hadoop subprojects. (cos) + + HADOOP-6777. Implement a functionality for suspend and resume a process. + (Vinay Thota via cos) + + HADOOP-6772. Utilities for system tests specific. (Vinay Thota via cos) + + HADOOP-6771. Herriot's artifact id for Maven deployment should be set to + hadoop-core-instrumented (cos) + + HADOOP-6752. Remote cluster control functionality needs JavaDocs + improvement (Balaji Rajagopalan via cos). + + HADOOP-4565. Added CombineFileInputFormat to use data locality information + to create splits. (dhruba via zshao) + + HADOOP-4936. Improvements to TestSafeMode. (shv) + + HADOOP-4985. Remove unnecessary "throw IOException" declarations in + FSDirectory related methods. (szetszwo) + + HADOOP-5017. Change NameNode.namesystem declaration to private. (szetszwo) + + HADOOP-4794. Add branch information from the source version control into + the version information that is compiled into Hadoop. (cdouglas via + omalley) + + HADOOP-5070. Increment copyright year to 2009, remove assertions of ASF + copyright to licensed files. (Tsz Wo (Nicholas), SZE via cdouglas) + + HADOOP-5037. Deprecate static FSNamesystem.getFSNamesystem(). (szetszwo) + + HADOOP-5088. Include releaseaudit target as part of developer test-patch + target. (Giridharan Kesavan via nigel) + + HADOOP-2721. Uses setsid when creating new tasks so that subprocesses of + this process will be within this new session (and this process will be + the process leader for all the subprocesses). Killing the process leader, + or the main Java task in Hadoop's case, kills the entire subtree of + processes. (Ravi Gummadi via ddas) + + HADOOP-5097. Remove static variable JspHelper.fsn, a static reference to + a non-singleton FSNamesystem object. (szetszwo) + + HADOOP-3327. Improves handling of READ_TIMEOUT during map output copying. + (Amareshwari Sriramadasu via ddas) + + HADOOP-5124. Choose datanodes randomly instead of starting from the first + datanode for providing fairness. (hairong via szetszwo) + + HADOOP-4930. Implement a Linux native executable that can be used to + launch tasks as users. (Sreekanth Ramakrishnan via yhemanth) + + HADOOP-5122. Fix format of fs.default.name value in libhdfs test conf. + (Craig Macdonald via tomwhite) + + HADOOP-5038. Direct daemon trace to debug log instead of stdout. (Jerome + Boulon via cdouglas) + + HADOOP-5101. Improve packaging by adding 'all-jars' target building core, + tools, and example jars. Let findbugs depend on this rather than the 'tar' + target. (Giridharan Kesavan via cdouglas) + + HADOOP-4868. Splits the hadoop script into three parts - bin/hadoop, + bin/mapred and bin/hdfs. (Sharad Agarwal via ddas) + + HADOOP-1722. Adds support for TypedBytes and RawBytes in Streaming. + (Klaas Bosteels via ddas) + + HADOOP-4220. Changes the JobTracker restart tests so that they take much + less time. (Amar Kamat via ddas) + + HADOOP-4885. Try to restore failed name-node storage directories at + checkpoint time. (Boris Shkolnik via shv) + + HADOOP-5209. Update year to 2009 for javadoc. (szetszwo) + + HADOOP-5279. Remove unnecessary targets from test-patch.sh. + (Giridharan Kesavan via nigel) + + HADOOP-5120. Remove the use of FSNamesystem.getFSNamesystem() from + UpgradeManagerNamenode and UpgradeObjectNamenode. (szetszwo) + + HADOOP-5222. Add offset to datanode clienttrace. (Lei Xu via cdouglas) + + HADOOP-5240. Skip re-building javadoc when it is already + up-to-date. (Aaron Kimball via cutting) + + HADOOP-5042. Add a cleanup stage to log rollover in Chukwa appender. + (Jerome Boulon via cdouglas) + + HADOOP-5264. Removes redundant configuration object from the TaskTracker. + (Sharad Agarwal via ddas) + + HADOOP-5232. Enable patch testing to occur on more than one host. + (Giri Kesavan via nigel) + + HADOOP-4546. Fix DF reporting for AIX. (Bill Habermaas via cdouglas) + + HADOOP-5023. Add Tomcat support to HdfsProxy. (Zhiyong Zhang via cdouglas) + + HADOOP-5317. Provide documentation for LazyOutput Feature. + (Jothi Padmanabhan via johan) + + HADOOP-5455. Document rpc metrics context to the extent dfs, mapred, and + jvm contexts are documented. (Philip Zeyliger via cdouglas) + + HADOOP-5358. Provide scripting functionality to the synthetic load + generator. (Jakob Homan via hairong) + + HADOOP-5442. Paginate jobhistory display and added some search + capabilities. (Amar Kamat via acmurthy) + + HADOOP-4842. Streaming now allows specifiying a command for the combiner. + (Amareshwari Sriramadasu via ddas) + + HADOOP-5196. avoiding unnecessary byte[] allocation in + SequenceFile.CompressedBytes and SequenceFile.UncompressedBytes. + (hong tang via mahadev) + + HADOOP-4655. New method FileSystem.newInstance() that always returns + a newly allocated FileSystem object. (dhruba) + + HADOOP-4788. Set Fair scheduler to assign both a map and a reduce on each + heartbeat by default. (matei) + + HADOOP-5491. In contrib/index, better control memory usage. + (Ning Li via cutting) + + HADOOP-5423. Include option of preserving file metadata in + SequenceFile::sort. (Michael Tamm via cdouglas) + + HADOOP-5331. Add support for KFS appends. (Sriram Rao via cdouglas) + + HADOOP-4365. Make Configuration::getProps protected in support of + meaningful subclassing. (Steve Loughran via cdouglas) + + HADOOP-2413. Remove the static variable FSNamesystem.fsNamesystemObject. + (Konstantin Shvachko via szetszwo) + + HADOOP-4584. Improve datanode block reports and associated file system + scan to avoid interefering with normal datanode operations. + (Suresh Srinivas via rangadi) + + HADOOP-5502. Documentation for backup and checkpoint nodes. + (Jakob Homan via shv) + + HADOOP-5485. Mask actions in the fair scheduler's servlet UI based on + value of webinterface.private.actions. + (Vinod Kumar Vavilapalli via yhemanth) + + HADOOP-5581. HDFS should throw FileNotFoundException when while opening + a file that does not exist. (Brian Bockelman via rangadi) + + HADOOP-5509. PendingReplicationBlocks does not start monitor in the + constructor. (shv) + + HADOOP-5494. Modify sorted map output merger to lazily read values, + rather than buffering at least one record for each segment. (Devaraj Das + via cdouglas) + + HADOOP-5396. Provide ability to refresh queue ACLs in the JobTracker + without having to restart the daemon. + (Sreekanth Ramakrishnan and Vinod Kumar Vavilapalli via yhemanth) + + HADOOP-4490. Provide ability to run tasks as job owners. + (Sreekanth Ramakrishnan via yhemanth) + + HADOOP-5697. Change org.apache.hadoop.examples.Grep to use new + mapreduce api. (Amareshwari Sriramadasu via sharad) + + HADOOP-5625. Add operation duration to clienttrace. (Lei Xu via cdouglas) + + HADOOP-5705. Improve TotalOrderPartitioner efficiency by updating the trie + construction. (Dick King via cdouglas) + + HADOOP-5589. Eliminate source limit of 64 for map-side joins imposed by + TupleWritable encoding. (Jingkei Ly via cdouglas) + + HADOOP-5734. Correct block placement policy description in HDFS + Design document. (Konstantin Boudnik via shv) + + HADOOP-5657. Validate data in TestReduceFetch to improve merge test + coverage. (cdouglas) + + HADOOP-5613. Change S3Exception to checked exception. + (Andrew Hitchcock via tomwhite) + + HADOOP-5717. Create public enum class for the Framework counters in + org.apache.hadoop.mapreduce. (Amareshwari Sriramadasu via sharad) + + HADOOP-5217. Split AllTestDriver for core, hdfs and mapred. (sharad) + + HADOOP-5364. Add certificate expiration warning to HsftpFileSystem and HDFS + proxy. (Zhiyong Zhang via cdouglas) + + HADOOP-5733. Add map/reduce slot capacity and blacklisted capacity to + JobTracker metrics. (Sreekanth Ramakrishnan via cdouglas) + + HADOOP-5596. Add EnumSetWritable. (He Yongqiang via szetszwo) + + HADOOP-5727. Simplify hashcode for ID types. (Shevek via cdouglas) + + HADOOP-5500. In DBOutputFormat, where field names are absent permit the + number of fields to be sufficient to construct the select query. (Enis + Soztutar via cdouglas) + + HADOOP-5081. Split TestCLI into HDFS, Mapred and Core tests. (sharad) + + HADOOP-5015. Separate block management code from FSNamesystem. (Suresh + Srinivas via szetszwo) + + HADOOP-5080. Add new test cases to TestMRCLI and TestHDFSCLI + (V.Karthikeyan via nigel) + + HADOOP-5135. Splits the tests into different directories based on the + package. Four new test targets have been defined - run-test-core, + run-test-mapred, run-test-hdfs and run-test-hdfs-with-mr. + (Sharad Agarwal via ddas) + + HADOOP-5771. Implements unit tests for LinuxTaskController. + (Sreekanth Ramakrishnan and Vinod Kumar Vavilapalli via yhemanth) + + HADOOP-5419. Provide a facility to query the Queue ACLs for the + current user. + (Rahul Kumar Singh via yhemanth) + + HADOOP-5780. Improve per block message prited by "-metaSave" in HDFS. + (Raghu Angadi) + + HADOOP-5823. Added a new class DeprecatedUTF8 to help with removing + UTF8 related javac warnings. These warnings are removed in + FSEditLog.java as a use case. (Raghu Angadi) + + HADOOP-5824. Deprecate DataTransferProtocol.OP_READ_METADATA and remove + the corresponding unused codes. (Kan Zhang via szetszwo) + + HADOOP-5721. Factor out EditLogFileInputStream and EditLogFileOutputStream + into independent classes. (Luca Telloli & Flavio Junqueira via shv) + + HADOOP-5838. Fix a few javac warnings in HDFS. (Raghu Angadi) + + HADOOP-5854. Fix a few "Inconsistent Synchronization" warnings in HDFS. + (Raghu Angadi) + + HADOOP-5369. Small tweaks to reduce MapFile index size. (Ben Maurer + via sharad) + + HADOOP-5858. Eliminate UTF8 and fix warnings in test/hdfs-with-mr package. + (shv) + + HADOOP-5866. Move DeprecatedUTF8 from o.a.h.io to o.a.h.hdfs since it may + not be used outside hdfs. (Raghu Angadi) + + HADOOP-5857. Move normal java methods from hdfs .jsp files to .java files. + (szetszwo) + + HADOOP-5873. Remove deprecated methods randomDataNode() and + getDatanodeByIndex(..) in FSNamesystem. (szetszwo) + + HADOOP-5572. Improves the progress reporting for the sort phase for both + maps and reduces. (Ravi Gummadi via ddas) + + HADOOP-5839. Fix EC2 scripts to allow remote job submission. + (Joydeep Sen Sarma via tomwhite) + + HADOOP-5877. Fix javac warnings in TestHDFSServerPorts, TestCheckpoint, + TestNameEditsConfig, TestStartup and TestStorageRestore. + (Jakob Homan via shv) + + HADOOP-5438. Provide a single FileSystem method to create or + open-for-append to a file. (He Yongqiang via dhruba) + + HADOOP-5472. Change DistCp to support globbing of input paths. (Dhruba + Borthakur and Rodrigo Schmidt via szetszwo) + + HADOOP-5175. Don't unpack libjars on classpath. (Todd Lipcon via tomwhite) + + HADOOP-5620. Add an option to DistCp for preserving modification and access + times. (Rodrigo Schmidt via szetszwo) + + HADOOP-5664. Change map serialization so a lock is obtained only where + contention is possible, rather than for each write. (cdouglas) + + HADOOP-5896. Remove the dependency of GenericOptionsParser on + Option.withArgPattern. (Giridharan Kesavan and Sharad Agarwal via + sharad) + + HADOOP-5784. Makes the number of heartbeats that should arrive a second + at the JobTracker configurable. (Amareshwari Sriramadasu via ddas) + + HADOOP-5955. Changes TestFileOuputFormat so that is uses LOCAL_MR + instead of CLUSTER_MR. (Jothi Padmanabhan via das) + + HADOOP-5948. Changes TestJavaSerialization to use LocalJobRunner + instead of MiniMR/DFS cluster. (Jothi Padmanabhan via das) + + HADOOP-2838. Add mapred.child.env to pass environment variables to + tasktracker's child processes. (Amar Kamat via sharad) + + HADOOP-5961. DataNode process understand generic hadoop command line + options (like -Ddfs.property=value). (Raghu Angadi) + + HADOOP-5938. Change org.apache.hadoop.mapred.jobcontrol to use new + api. (Amareshwari Sriramadasu via sharad) + + HADOOP-2141. Improves the speculative execution heuristic. The heuristic + is currently based on the progress-rates of tasks and the expected time + to complete. Also, statistics about trackers are collected, and speculative + tasks are not given to the ones deduced to be slow. + (Andy Konwinski and ddas) + + HADOOP-5952. Change "-1 tests included" wording in test-patch.sh. + (Gary Murry via szetszwo) + + HADOOP-6106. Provides an option in ShellCommandExecutor to timeout + commands that do not complete within a certain amount of time. + (Sreekanth Ramakrishnan via yhemanth) + + HADOOP-5925. EC2 scripts should exit on error. (tomwhite) + + HADOOP-6109. Change Text to grow its internal buffer exponentially, rather + than the max of the current length and the proposed length to improve + performance reading large values. (thushara wijeratna via cdouglas) + + HADOOP-2366. Support trimmed strings in Configuration. (Michele Catasta + via szetszwo) + + HADOOP-6099. The RPC module can be configured to not send period pings. + The default behaviour of sending periodic pings remain unchanged. (dhruba) + + HADOOP-6142. Update documentation and use of harchives for relative paths + added in MAPREDUCE-739. (Mahadev Konar via cdouglas) + + HADOOP-6148. Implement a fast, pure Java CRC32 calculator which outperforms + java.util.zip.CRC32. (Todd Lipcon and Scott Carey via szetszwo) + + HADOOP-6146. Upgrade to JetS3t version 0.7.1. (tomwhite) + + HADOOP-6161. Add get/setEnum methods to Configuration. (cdouglas) + + HADOOP-6160. Fix releaseaudit target to run on specific directories. + (gkesavan) + + HADOOP-6169. Removing deprecated method calls in TFile. (hong tang via + mahadev) + + HADOOP-6176. Add a couple package private methods to AccessTokenHandler + for testing. (Kan Zhang via szetszwo) + + HADOOP-6182. Fix ReleaseAudit warnings (Giridharan Kesavan and Lee Tucker + via gkesavan) + + HADOOP-6173. Change src/native/packageNativeHadoop.sh to package all + native library files. (Hong Tang via szetszwo) + + HADOOP-6184. Provide an API to dump Configuration in a JSON format. + (V.V.Chaitanya Krishna via yhemanth) + + HADOOP-6224. Add a method to WritableUtils performing a bounded read of an + encoded String. (Jothi Padmanabhan via cdouglas) + + HADOOP-6133. Add a caching layer to Configuration::getClassByName to + alleviate a performance regression introduced in a compatibility layer. + (Todd Lipcon via cdouglas) + + HADOOP-6252. Provide a method to determine if a deprecated key is set in + config file. (Jakob Homan via suresh) + + HADOOP-5879. Read compression level and strategy from Configuration for + gzip compression. (He Yongqiang via cdouglas) + + HADOOP-6216. Support comments in host files. (Ravi Phulari and Dmytro + Molkov via szetszwo) + + HADOOP-6217. Update documentation for project split. (Corinne Chandel via + omalley) + + HADOOP-6268. Add ivy jar to .gitignore. (Todd Lipcon via cdouglas) + + HADOOP-6270. Support deleteOnExit in FileContext. (Suresh Srinivas via + szetszwo) + + HADOOP-6233. Rename configuration keys towards API standardization and + backward compatibility. (Jithendra Pandey via suresh) + + HADOOP-6260. Add additional unit tests for FileContext util methods. + (Gary Murry via suresh). + + HADOOP-6309. Change build.xml to run tests with java asserts. (Eli + Collins via szetszwo) + + HADOOP-6326. Hundson runs should check for AspectJ warnings and report + failure if any is present (cos) + + HADOOP-6329. Add build-fi directory to the ignore lists. (szetszwo) + + HADOOP-5107. Use Maven ant tasks to publish the subproject jars. + (Giridharan Kesavan via omalley) + + HADOOP-6343. Log unexpected throwable object caught in RPC. (Jitendra Nath + Pandey via szetszwo) + + HADOOP-6367. Removes Access Token implementation from common. + (Kan Zhang via ddas) + + HADOOP-6395. Upgrade some libraries to be consistent across common, hdfs, + and mapreduce. (omalley) + + HADOOP-6398. Build is broken after HADOOP-6395 patch has been applied (cos) + + HADOOP-6413. Move TestReflectionUtils to Common. (Todd Lipcon via tomwhite) + + HADOOP-6283. Improve the exception messages thrown by + FileUtil$HardLink.getLinkCount(..). (szetszwo) + + HADOOP-6279. Add Runtime::maxMemory to JVM metrics. (Todd Lipcon via + cdouglas) + + HADOOP-6305. Unify build property names to facilitate cross-projects + modifications (cos) + + HADOOP-6312. Remove unnecessary debug logging in Configuration constructor. + (Aaron Kimball via cdouglas) + + HADOOP-6366. Reduce ivy console output to ovservable level (cos) + + HADOOP-6400. Log errors getting Unix UGI. (Todd Lipcon via tomwhite) + + HADOOP-6346. Add support for specifying unpack pattern regex to + RunJar.unJar. (Todd Lipcon via tomwhite) + + HADOOP-6422. Make RPC backend plugable, protocol-by-protocol, to + ease evolution towards Avro. (cutting) + + HADOOP-5958. Use JDK 1.6 File APIs in DF.java wherever possible. + (Aaron Kimball via tomwhite) + + HADOOP-6222. Core doesn't have TestCommonCLI facility. (cos) + + HADOOP-6394. Add a helper class to simplify FileContext related tests and + improve code reusability. (Jitendra Nath Pandey via suresh) + + HADOOP-4656. Add a user to groups mapping service. (boryas, acmurthy) + + HADOOP-6435. Make RPC.waitForProxy with timeout public. (Steve Loughran + via tomwhite) + + HADOOP-6472. add tokenCache option to GenericOptionsParser for passing + file with secret keys to a map reduce job. (boryas) + + HADOOP-3205. Read multiple chunks directly from FSInputChecker subclass + into user buffers. (Todd Lipcon via tomwhite) + + HADOOP-6479. TestUTF8 assertions could fail with better text. + (Steve Loughran via tomwhite) + + HADOOP-6155. Deprecate RecordIO anticipating Avro. (Tom White via cdouglas) + + HADOOP-6492. Make some Avro serialization APIs public. + (Aaron Kimball via cutting) + + HADOOP-6497. Add an adapter for Avro's SeekableInput interface, so + that Avro can read FileSystem data. + (Aaron Kimball via cutting) + + HADOOP-6495. Identifier should be serialized after the password is + created In Token constructor (jnp via boryas) + + HADOOP-6518. Makes the UGI honor the env var KRB5CCNAME. + (Owen O'Malley via ddas) + + HADOOP-6531. Enhance FileUtil with an API to delete all contents of a + directory. (Amareshwari Sriramadasu via yhemanth) + + HADOOP-6547. Move DelegationToken into Common, so that it can be used by + MapReduce also. (devaraj via omalley) + + HADOOP-6552. Puts renewTGT=true and useTicketCache=true for the keytab + kerberos options. (ddas) + + HADOOP-6534. Trim whitespace from directory lists initializing + LocalDirAllocator. (Todd Lipcon via cdouglas) + + HADOOP-6559. Makes the RPC client automatically re-login when the SASL + connection setup fails. This is applicable only to keytab based logins. + (Devaraj Das) + + HADOOP-6551. Delegation token renewing and cancelling should provide + meaningful exceptions when there are failures instead of returning + false. (omalley) + + HADOOP-6583. Captures authentication and authorization metrics. (ddas) + + HADOOP-6543. Allows secure clients to talk to unsecure clusters. + (Kan Zhang via ddas) + + HADOOP-6579. Provide a mechanism for encoding/decoding Tokens from + a url-safe string and change the commons-code library to 1.4. (omalley) + + HADOOP-6596. Add a version field to the AbstractDelegationTokenIdentifier's + serialized value. (omalley) + + HADOOP-6573. Support for persistent delegation tokens. + (Jitendra Pandey via shv) + + HADOOP-6594. Provide a fetchdt tool via bin/hdfs. (jhoman via acmurthy) + + HADOOP-6589. Provide better error messages when RPC authentication fails. + (Kan Zhang via omalley) + + HADOOP-6599 Split existing RpcMetrics into RpcMetrics & RpcDetailedMetrics. + (Suresh Srinivas via Sanjay Radia) + + HADOOP-6537 Declare more detailed exceptions in FileContext and + AbstractFileSystem (Suresh Srinivas via Sanjay Radia) + + HADOOP-6486. fix common classes to work with Avro 1.3 reflection. + (cutting via tomwhite) + + HADOOP-6591. HarFileSystem can handle paths with the whitespace characters. + (Rodrigo Schmidt via dhruba) + + HADOOP-6407. Have a way to automatically update Eclipse .classpath file + when new libs are added to the classpath through Ivy. (tomwhite) + + HADOOP-3659. Patch to allow hadoop native to compile on Mac OS X. + (Colin Evans and Allen Wittenauer via tomwhite) + + HADOOP-6471. StringBuffer -> StringBuilder - conversion of references + as necessary. (Kay Kay via tomwhite) + + HADOOP-6646. Move HarfileSystem out of Hadoop Common. (mahadev) + + HADOOP-6566. Add methods supporting, enforcing narrower permissions on + local daemon directories. (Arun Murthy and Luke Lu via cdouglas) + + HADOOP-6705. Fix to work with 1.5 version of jiracli + (Giridharan Kesavan) + + HADOOP-6658. Exclude Private elements from generated Javadoc. (tomwhite) + + HADOOP-6635. Install/deploy source jars to Maven repo. + (Patrick Angeles via jghoman) + + HADOOP-6717. Log levels in o.a.h.security.Groups too high + (Todd Lipcon via jghoman) + + HADOOP-6667. RPC.waitForProxy should retry through NoRouteToHostException. + (Todd Lipcon via tomwhite) + + HADOOP-6677. InterfaceAudience.LimitedPrivate should take a string not an + enum. (tomwhite) + + HADOOP-678. Remove FileContext#isFile, isDirectory, and exists. + (Eli Collins via hairong) + + HADOOP-6515. Make maximum number of http threads configurable. + (Scott Chen via zshao) + + HADOOP-6563. Add more symlink tests to cover intermediate symlinks + in paths. (Eli Collins via suresh) + + HADOOP-6585. Add FileStatus#isDirectory and isFile. (Eli Collins via + tomwhite) + + HADOOP-6738. Move cluster_setup.xml from MapReduce to Common. + (Tom White via tomwhite) + + HADOOP-6794. Move configuration and script files post split. (tomwhite) + + HADOOP-6403. Deprecate EC2 bash scripts. (tomwhite) + + HADOOP-6769. Add an API in FileSystem to get FileSystem instances based + on users(ddas via boryas) + + HADOOP-6813. Add a new newInstance method in FileSystem that takes + a "user" as argument (ddas via boryas) + + HADOOP-6668. Apply audience and stability annotations to classes in + common. (tomwhite) + + HADOOP-6821. Document changes to memory monitoring. (Hemanth Yamijala + via tomwhite) + + OPTIMIZATIONS + + HADOOP-5595. NameNode does not need to run a replicator to choose a + random DataNode. (hairong) + + HADOOP-5603. Improve NameNode's block placement performance. (hairong) + + HADOOP-5638. More improvement on block placement performance. (hairong) + + HADOOP-6180. NameNode slowed down when many files with same filename + were moved to Trash. (Boris Shkolnik via hairong) + + HADOOP-6166. Further improve the performance of the pure-Java CRC32 + implementation. (Tsz Wo (Nicholas), SZE via cdouglas) + + HADOOP-6271. Add recursive and non recursive create and mkdir to + FileContext. (Sanjay Radia via suresh) + + HADOOP-6261. Add URI based tests for FileContext. + (Ravi Pulari via suresh). + + HADOOP-6307. Add a new SequenceFile.Reader constructor in order to support + reading on un-closed file. (szetszwo) + + HADOOP-6467. Improve the performance on HarFileSystem.listStatus(..). + (mahadev via szetszwo) + + HADOOP-6569. FsShell#cat should avoid calling unecessary getFileStatus + before opening a file to read. (hairong) + + HADOOP-6689. Add directory renaming test to existing FileContext tests. + (Eli Collins via suresh) + + HADOOP-6713. The RPC server Listener thread is a scalability bottleneck. + (Dmytro Molkov via hairong) + + BUG FIXES + + HADOOP-6748. Removes hadoop.cluster.administrators, cluster administrators + acl is passed as parameter in constructor. (amareshwari) + + HADOOP-6828. Herrior uses old way of accessing logs directories (Sreekanth + Ramakrishnan via cos) + + HADOOP-6788. [Herriot] Exception exclusion functionality is not working + correctly. (Vinay Thota via cos) + + HADOOP-6773. Ivy folder contains redundant files (cos) + + HADOOP-5379. CBZip2InputStream to throw IOException on data crc error. + (Rodrigo Schmidt via zshao) + + HADOOP-5326. Fixes CBZip2OutputStream data corruption problem. + (Rodrigo Schmidt via zshao) + + HADOOP-4963. Fixes a logging to do with getting the location of + map output file. (Amareshwari Sriramadasu via ddas) + + HADOOP-2337. Trash should close FileSystem on exit and should not start + emtying thread if disabled. (shv) + + HADOOP-5072. Fix failure in TestCodec because testSequenceFileGzipCodec + won't pass without native gzip codec. (Zheng Shao via dhruba) + + HADOOP-5050. TestDFSShell.testFilePermissions should not assume umask + setting. (Jakob Homan via szetszwo) + + HADOOP-4975. Set classloader for nested mapred.join configs. (Jingkei Ly + via cdouglas) + + HADOOP-5078. Remove invalid AMI kernel in EC2 scripts. (tomwhite) + + HADOOP-5045. FileSystem.isDirectory() should not be deprecated. (Suresh + Srinivas via szetszwo) + + HADOOP-4960. Use datasource time, rather than system time, during metrics + demux. (Eric Yang via cdouglas) + + HADOOP-5032. Export conf dir set in config script. (Eric Yang via cdouglas) + + HADOOP-5176. Fix a typo in TestDFSIO. (Ravi Phulari via szetszwo) + + HADOOP-4859. Distinguish daily rolling output dir by adding a timestamp. + (Jerome Boulon via cdouglas) + + HADOOP-4959. Correct system metric collection from top on Redhat 5.1. (Eric + Yang via cdouglas) + + HADOOP-5039. Fix log rolling regex to process only the relevant + subdirectories. (Jerome Boulon via cdouglas) + + HADOOP-5095. Update Chukwa watchdog to accept config parameter. (Jerome + Boulon via cdouglas) + + HADOOP-5147. Correct reference to agent list in Chukwa bin scripts. (Ari + Rabkin via cdouglas) + + HADOOP-5148. Fix logic disabling watchdog timer in Chukwa daemon scripts. + (Ari Rabkin via cdouglas) + + HADOOP-5100. Append, rather than truncate, when creating log4j metrics in + Chukwa. (Jerome Boulon via cdouglas) + + HADOOP-5204. Fix broken trunk compilation on Hudson by letting + task-controller be an independent target in build.xml. + (Sreekanth Ramakrishnan via yhemanth) + + HADOOP-5212. Fix the path translation problem introduced by HADOOP-4868 + running on cygwin. (Sharad Agarwal via omalley) + + HADOOP-5226. Add license headers to html and jsp files. (szetszwo) + + HADOOP-5172. Disable misbehaving Chukwa unit test until it can be fixed. + (Jerome Boulon via nigel) + + HADOOP-4933. Fixes a ConcurrentModificationException problem that shows up + when the history viewer is accessed concurrently. + (Amar Kamat via ddas) + + HADOOP-5253. Remove duplicate call to cn-docs target. + (Giri Kesavan via nigel) + + HADOOP-5251. Fix classpath for contrib unit tests to include clover jar. + (nigel) + + HADOOP-5206. Synchronize "unprotected*" methods of FSDirectory on the root. + (Jakob Homan via shv) + + HADOOP-5292. Fix NPE in KFS::getBlockLocations. (Sriram Rao via lohit) + + HADOOP-5219. Adds a new property io.seqfile.local.dir for use by + SequenceFile, which earlier used mapred.local.dir. (Sharad Agarwal + via ddas) + + HADOOP-5300. Fix ant javadoc-dev target and the typo in the class name + NameNodeActivtyMBean. (szetszwo) + + HADOOP-5218. libhdfs unit test failed because it was unable to + start namenode/datanode. Fixed. (dhruba) + + HADOOP-5273. Add license header to TestJobInProgress.java. (Jakob Homan + via szetszwo) + + HADOOP-5229. Remove duplicate version variables in build files + (Stefan Groschupf via johan) + + HADOOP-5383. Avoid building an unused string in NameNode's + verifyReplication(). (Raghu Angadi) + + HADOOP-5347. Create a job output directory for the bbp examples. (szetszwo) + + HADOOP-5341. Make hadoop-daemon scripts backwards compatible with the + changes in HADOOP-4868. (Sharad Agarwal via yhemanth) + + HADOOP-5456. Fix javadoc links to ClientProtocol#restoreFailedStorage(..). + (Boris Shkolnik via szetszwo) + + HADOOP-5458. Remove leftover Chukwa entries from build, etc. (cdouglas) + + HADOOP-5386. Modify hdfsproxy unit test to start on a random port, + implement clover instrumentation. (Zhiyong Zhang via cdouglas) + + HADOOP-5511. Add Apache License to EditLogBackupOutputStream. (shv) + + HADOOP-5507. Fix JMXGet javadoc warnings. (Boris Shkolnik via szetszwo) + + HADOOP-5191. Accessing HDFS with any ip or hostname should work as long + as it points to the interface NameNode is listening on. (Raghu Angadi) + + HADOOP-5561. Add javadoc.maxmemory parameter to build, preventing OOM + exceptions from javadoc-dev. (Jakob Homan via cdouglas) + + HADOOP-5149. Modify HistoryViewer to ignore unfamiliar files in the log + directory. (Hong Tang via cdouglas) + + HADOOP-5477. Fix rare failure in TestCLI for hosts returning variations of + 'localhost'. (Jakob Homan via cdouglas) + + HADOOP-5194. Disables setsid for tasks run on cygwin. + (Ravi Gummadi via ddas) + + HADOOP-5322. Fix misleading/outdated comments in JobInProgress. + (Amareshwari Sriramadasu via cdouglas) + + HADOOP-5198. Fixes a problem to do with the task PID file being absent and + the JvmManager trying to look for it. (Amareshwari Sriramadasu via ddas) + + HADOOP-5464. DFSClient did not treat write timeout of 0 properly. + (Raghu Angadi) + + HADOOP-4045. Fix processing of IO errors in EditsLog. + (Boris Shkolnik via shv) + + HADOOP-5462. Fixed a double free bug in the task-controller + executable. (Sreekanth Ramakrishnan via yhemanth) + + HADOOP-5652. Fix a bug where in-memory segments are incorrectly retained in + memory. (cdouglas) + + HADOOP-5533. Recovery duration shown on the jobtracker webpage is + inaccurate. (Amar Kamat via sharad) + + HADOOP-5647. Fix TestJobHistory to not depend on /tmp. (Ravi Gummadi + via sharad) + + HADOOP-5661. Fixes some findbugs warnings in o.a.h.mapred* packages and + supresses a bunch of them. (Jothi Padmanabhan via ddas) + + HADOOP-5704. Fix compilation problems in TestFairScheduler and + TestCapacityScheduler. (Chris Douglas via szetszwo) + + HADOOP-5650. Fix safemode messages in the Namenode log. (Suresh Srinivas + via szetszwo) + + HADOOP-5488. Removes the pidfile management for the Task JVM from the + framework and instead passes the PID back and forth between the + TaskTracker and the Task processes. (Ravi Gummadi via ddas) + + HADOOP-5658. Fix Eclipse templates. (Philip Zeyliger via shv) + + HADOOP-5709. Remove redundant synchronization added in HADOOP-5661. (Jothi + Padmanabhan via cdouglas) + + HADOOP-5715. Add conf/mapred-queue-acls.xml to the ignore lists. + (szetszwo) + + HADOOP-5592. Fix typo in Streaming doc in reference to GzipCodec. + (Corinne Chandel via tomwhite) + + HADOOP-5656. Counter for S3N Read Bytes does not work. (Ian Nowland + via tomwhite) + + HADOOP-5406. Fix JNI binding for ZlibCompressor::setDictionary. (Lars + Francke via cdouglas) + + HADOOP-3426. Fix/provide handling when DNS lookup fails on the loopback + address. Also cache the result of the lookup. (Steve Loughran via cdouglas) + + HADOOP-5476. Close the underlying InputStream in SequenceFile::Reader when + the constructor throws an exception. (Michael Tamm via cdouglas) + + HADOOP-5675. Do not launch a job if DistCp has no work to do. (Tsz Wo + (Nicholas), SZE via cdouglas) + + HADOOP-5737. Fixes a problem in the way the JobTracker used to talk to + other daemons like the NameNode to get the job's files. Also adds APIs + in the JobTracker to get the FileSystem objects as per the JobTracker's + configuration. (Amar Kamat via ddas) + + HADOOP-5648. Not able to generate gridmix.jar on the already compiled + version of hadoop. (gkesavan) + + HADOOP-5808. Fix import never used javac warnings in hdfs. (szetszwo) + + HADOOP-5203. TT's version build is too restrictive. (Rick Cox via sharad) + + HADOOP-5818. Revert the renaming from FSNamesystem.checkSuperuserPrivilege + to checkAccess by HADOOP-5643. (Amar Kamat via szetszwo) + + HADOOP-5820. Fix findbugs warnings for http related codes in hdfs. + (szetszwo) + + HADOOP-5822. Fix javac warnings in several dfs tests related to unncessary + casts. (Jakob Homan via szetszwo) + + HADOOP-5842. Fix a few javac warnings under packages fs and util. + (Hairong Kuang via szetszwo) + + HADOOP-5845. Build successful despite test failure on test-core target. + (sharad) + + HADOOP-5314. Prevent unnecessary saving of the file system image during + name-node startup. (Jakob Homan via shv) + + HADOOP-5855. Fix javac warnings for DisallowedDatanodeException and + UnsupportedActionException. (szetszwo) + + HADOOP-5582. Fixes a problem in Hadoop Vaidya to do with reading + counters from job history files. (Suhas Gogate via ddas) + + HADOOP-5829. Fix javac warnings found in ReplicationTargetChooser, + FSImage, Checkpointer, SecondaryNameNode and a few other hdfs classes. + (Suresh Srinivas via szetszwo) + + HADOOP-5835. Fix findbugs warnings found in Block, DataNode, NameNode and + a few other hdfs classes. (Suresh Srinivas via szetszwo) + + HADOOP-5853. Undeprecate HttpServer.addInternalServlet method. (Suresh + Srinivas via szetszwo) + + HADOOP-5801. Fixes the problem: If the hosts file is changed across restart + then it should be refreshed upon recovery so that the excluded hosts are + lost and the maps are re-executed. (Amar Kamat via ddas) + + HADOOP-5841. Resolve findbugs warnings in DistributedFileSystem, + DatanodeInfo, BlocksMap, DataNodeDescriptor. (Jakob Homan via szetszwo) + + HADOOP-5878. Fix import and Serializable javac warnings found in hdfs jsp. + (szetszwo) + + HADOOP-5782. Revert a few formatting changes introduced in HADOOP-5015. + (Suresh Srinivas via rangadi) + + HADOOP-5687. NameNode throws NPE if fs.default.name is the default value. + (Philip Zeyliger via shv) + + HADOOP-5867. Fix javac warnings found in NNBench and NNBenchWithoutMR. + (Konstantin Boudnik via szetszwo) + + HADOOP-5728. Fixed FSEditLog.printStatistics IndexOutOfBoundsException. + (Wang Xu via johan) + + HADOOP-5847. Fixed failing Streaming unit tests (gkesavan) + + HADOOP-5252. Streaming overrides -inputformat option (Klaas Bosteels + via sharad) + + HADOOP-5710. Counter MAP_INPUT_BYTES missing from new mapreduce api. + (Amareshwari Sriramadasu via sharad) + + HADOOP-5809. Fix job submission, broken by errant directory creation. + (Sreekanth Ramakrishnan and Jothi Padmanabhan via cdouglas) + + HADOOP-5635. Change distributed cache to work with other distributed file + systems. (Andrew Hitchcock via tomwhite) + + HADOOP-5856. Fix "unsafe multithreaded use of DateFormat" findbugs warning + in DataBlockScanner. (Kan Zhang via szetszwo) + + HADOOP-4864. Fixes a problem to do with -libjars with multiple jars when + client and cluster reside on different OSs. (Amareshwari Sriramadasu via + ddas) + + HADOOP-5623. Fixes a problem to do with status messages getting overwritten + in streaming jobs. (Rick Cox and Jothi Padmanabhan via ddas) + + HADOOP-5895. Fixes computation of count of merged bytes for logging. + (Ravi Gummadi via ddas) + + HADOOP-5805. problem using top level s3 buckets as input/output + directories. (Ian Nowland via tomwhite) + + HADOOP-5940. trunk eclipse-plugin build fails while trying to copy + commons-cli jar from the lib dir (Giridharan Kesavan via gkesavan) + + HADOOP-5864. Fix DMI and OBL findbugs in packages hdfs and metrics. + (hairong) + + HADOOP-5935. Fix Hudson's release audit warnings link is broken. + (Giridharan Kesavan via gkesavan) + + HADOOP-5947. Delete empty TestCombineFileInputFormat.java + + HADOOP-5899. Move a log message in FSEditLog to the right place for + avoiding unnecessary log. (Suresh Srinivas via szetszwo) + + HADOOP-5944. Add Apache license header to BlockManager.java. (Suresh + Srinivas via szetszwo) + + HADOOP-5891. SecondaryNamenode is able to converse with the NameNode + even when the default value of dfs.http.address is not overridden. + (Todd Lipcon via dhruba) + + HADOOP-5953. The isDirectory(..) and isFile(..) methods in KosmosFileSystem + should not be deprecated. (szetszwo) + + HADOOP-5954. Fix javac warnings in TestFileCreation, TestSmallBlock, + TestFileStatus, TestDFSShellGenericOptions, TestSeekBug and + TestDFSStartupVersions. (szetszwo) + + HADOOP-5956. Fix ivy dependency in hdfsproxy and capacity-scheduler. + (Giridharan Kesavan via szetszwo) + + HADOOP-5836. Bug in S3N handling of directory markers using an object with + a trailing "/" causes jobs to fail. (Ian Nowland via tomwhite) + + HADOOP-5861. s3n files are not getting split by default. (tomwhite) + + HADOOP-5762. Fix a problem that DistCp does not copy empty directory. + (Rodrigo Schmidt via szetszwo) + + HADOOP-5859. Fix "wait() or sleep() with locks held" findbugs warnings in + DFSClient. (Kan Zhang via szetszwo) + + HADOOP-5457. Fix to continue to run builds even if contrib test fails + (Giridharan Kesavan via gkesavan) + + HADOOP-5963. Remove an unnecessary exception catch in NNBench. (Boris + Shkolnik via szetszwo) + + HADOOP-5989. Fix streaming test failure. (gkesavan) + + HADOOP-5981. Fix a bug in HADOOP-2838 in parsing mapred.child.env. + (Amar Kamat via sharad) + + HADOOP-5420. Fix LinuxTaskController to kill tasks using the process + groups they are launched with. + (Sreekanth Ramakrishnan via yhemanth) + + HADOOP-6031. Remove @author tags from Java source files. (Ravi Phulari + via szetszwo) + + HADOOP-5980. Fix LinuxTaskController so tasks get passed + LD_LIBRARY_PATH and other environment variables. + (Sreekanth Ramakrishnan via yhemanth) + + HADOOP-4041. IsolationRunner does not work as documented. + (Philip Zeyliger via tomwhite) + + HADOOP-6004. Fixes BlockLocation deserialization. (Jakob Homan via + szetszwo) + + HADOOP-6079. Serialize proxySource as DatanodeInfo in DataTransferProtocol. + (szetszwo) + + HADOOP-6096. Fix Eclipse project and classpath files following project + split. (tomwhite) + + HADOOP-6122. The great than operator in test-patch.sh should be "-gt" but + not ">". (szetszwo) + + HADOOP-6114. Fix javadoc documentation for FileStatus.getLen. + (Dmitry Rzhevskiy via dhruba) + + HADOOP-6131. A sysproperty should not be set unless the property + is set on the ant command line in build.xml (hong tang via mahadev) + + HADOOP-6137. Fix project specific test-patch requirements + (Giridharan Kesavan) + + HADOOP-6138. Eliminate the deprecated warnings introduced by H-5438. + (He Yongqiang via szetszwo) + + HADOOP-6132. RPC client create an extra connection because of incorrect + key for connection cache. (Kan Zhang via rangadi) + + HADOOP-6123. Add missing classpaths in hadoop-config.sh. (Sharad Agarwal + via szetszwo) + + HADOOP-6172. Fix jar file names in hadoop-config.sh and include + ${build.src} as a part of the source list in build.xml. (Hong Tang via + szetszwo) + + HADOOP-6124. Fix javac warning detection in test-patch.sh. (Giridharan + Kesavan via szetszwo) + + HADOOP-6177. FSInputChecker.getPos() would return position greater + than the file size. (Hong Tang via hairong) + + HADOOP-6188. TestTrash uses java.io.File api but not hadoop FileSystem api. + (Boris Shkolnik via szetszwo) + + HADOOP-6192. Fix Shell.getUlimitMemoryCommand to not rely on Map-Reduce + specific configs. (acmurthy) + + HADOOP-6103. Clones the classloader as part of Configuration clone. + (Amareshwari Sriramadasu via ddas) + + HADOOP-6152. Fix classpath variables in bin/hadoop-config.sh and some + other scripts. (Aaron Kimball via szetszwo) + + HADOOP-6215. fix GenericOptionParser to deal with -D with '=' in the + value. (Amar Kamat via sharad) + + HADOOP-6227. Fix Configuration to allow final parameters to be set to null + and prevent them from being overridden. + (Amareshwari Sriramadasu via yhemanth) + + HADOOP-6199. Move io.map.skip.index property to core-default from mapred. + (Amareshwari Sriramadasu via cdouglas) + + HADOOP-6229. Attempt to make a directory under an existing file on + LocalFileSystem should throw an Exception. (Boris Shkolnik via tomwhite) + + HADOOP-6243. Fix a NullPointerException in processing deprecated keys. + (Sreekanth Ramakrishnan via yhemanth) + + HADOOP-6009. S3N listStatus incorrectly returns null instead of empty + array when called on empty root. (Ian Nowland via tomwhite) + + HADOOP-6181. Fix .eclipse.templates/.classpath for avro and jets3t jar + files. (Carlos Valiente via szetszwo) + + HADOOP-6196. Fix a bug in SequenceFile.Reader where syncing within the + header would cause the reader to read the sync marker as a record. (Jay + Booth via cdouglas) + + HADOOP-6250. Modify test-patch to delete copied XML files before running + patch build. (Rahul Kumar Singh via yhemanth) + + HADOOP-6257. Two TestFileSystem classes are confusing + hadoop-hdfs-hdfwithmr. (Philip Zeyliger via tomwhite) + + HADOOP-6151. Added a input filter to all of the http servlets that quotes + html characters in the parameters, to prevent cross site scripting + attacks. (omalley) + + HADOOP-6274. Fix TestLocalFSFileContextMainOperations test failure. + (Gary Murry via suresh). + + HADOOP-6281. Avoid null pointer exceptions when the jsps don't have + paramaters (omalley) + + HADOOP-6285. Fix the result type of the getParameterMap method in the + HttpServer.QuotingInputFilter. (omalley) + + HADOOP-6286. Fix bugs in related to URI handling in glob methods in + FileContext. (Boris Shkolnik via suresh) + + HADOOP-6292. Update native libraries guide. (Corinne Chandel via cdouglas) + + HADOOP-6327. FileContext tests should not use /tmp and should clean up + files. (Sanjay Radia via szetszwo) + + HADOOP-6318. Upgrade to Avro 1.2.0. (cutting) + + HADOOP-6334. Fix GenericOptionsParser to understand URI for -files, + -libjars and -archives options and fix Path to support URI with fragment. + (Amareshwari Sriramadasu via szetszwo) + + HADOOP-6344. Fix rm and rmr immediately delete files rather than sending + to trash, if a user is over-quota. (Jakob Homan via suresh) + + HADOOP-6347. run-test-core-fault-inject runs a test case twice if + -Dtestcase is set (cos) + + HADOOP-6375. Sync documentation for FsShell du with its implementation. + (Todd Lipcon via cdouglas) + + HADOOP-6441. Protect web ui from cross site scripting attacks (XSS) on + the host http header and using encoded utf-7. (omalley) + + HADOOP-6451. Fix build to run contrib unit tests. (Tom White via cdouglas) + + HADOOP-6374. JUnit tests should never depend on anything in conf. + (Anatoli Fomenko via cos) + + HADOOP-6290. Prevent duplicate slf4j-simple jar via Avro's classpath. + (Owen O'Malley via cdouglas) + + HADOOP-6293. Fix FsShell -text to work on filesystems other than the + default. (cdouglas) + + HADOOP-6341. Fix test-patch.sh for checkTests function. (gkesavan) + + HADOOP-6314. Fix "fs -help" for the "-count" commond. (Ravi Phulari via + szetszwo) + + HADOOP-6405. Update Eclipse configuration to match changes to Ivy + configuration (Edwin Chan via cos) + + HADOOP-6411. Remove deprecated file src/test/hadoop-site.xml. (cos) + + HADOOP-6386. NameNode's HttpServer can't instantiate InetSocketAddress: + IllegalArgumentException is thrown (cos) + + HADOOP-6254. Slow reads cause s3n to fail with SocketTimeoutException. + (Andrew Hitchcock via tomwhite) + + HADOOP-6428. HttpServer sleeps with negative values. (cos) + + HADOOP-6414. Add command line help for -expunge command. + (Ravi Phulari via tomwhite) + + HADOOP-6391. Classpath should not be part of command line arguments. + (Cristian Ivascu via tomwhite) + + HADOOP-6462. Target "compile" does not exist in contrib/cloud. (tomwhite) + + HADOOP-6402. testConf.xsl is not well-formed XML. (Steve Loughran + via tomwhite) + + HADOOP-6489. Fix 3 findbugs warnings. (Erik Steffl via suresh) + + HADOOP-6517. Fix UserGroupInformation so that tokens are saved/retrieved + to/from the embedded Subject (Owen O'Malley & Kan Zhang via ddas) + + HADOOP-6538. Sets hadoop.security.authentication to simple by default. + (ddas) + + HADOOP-6540. Contrib unit tests have invalid XML for core-site, etc. + (Aaron Kimball via tomwhite) + + HADOOP-6521. User specified umask using deprecated dfs.umask must override + server configured using new dfs.umaskmode for backward compatibility. + (suresh) + + HADOOP-6522. Fix decoding of codepoint zero in UTF8. (cutting) + + HADOOP-6505. Use tr rather than sed to effect literal substitution in the + build script. (Allen Wittenauer via cdouglas) + + HADOOP-6548. Replace mortbay imports with commons logging. (cdouglas) + + HADOOP-6560. Handle invalid har:// uri in HarFileSystem. (szetszwo) + + HADOOP-6549. TestDoAsEffectiveUser should use ip address of the host + for superuser ip check(jnp via boryas) + + HADOOP-6570. RPC#stopProxy throws NPE if getProxyEngine(proxy) returns + null. (hairong) + + HADOOP-6558. Return null in HarFileSystem.getFileChecksum(..) since no + checksum algorithm is implemented. (szetszwo) + + HADOOP-6572. Makes sure that SASL encryption and push to responder + queue for the RPC response happens atomically. (Kan Zhang via ddas) + + HADOOP-6545. Changes the Key for the FileSystem cache to be UGI (ddas) + + HADOOP-6609. Fixed deadlock in RPC by replacing shared static + DataOutputBuffer in the UTF8 class with a thread local variable. (omalley) + + HADOOP-6504. Invalid example in the documentation of + org.apache.hadoop.util.Tool. (Benoit Sigoure via tomwhite) + + HADOOP-6546. BloomMapFile can return false negatives. (Clark Jefcoat + via tomwhite) + + HADOOP-6593. TextRecordInputStream doesn't close SequenceFile.Reader. + (Chase Bradford via tomwhite) + + HADOOP-6175. Incorrect version compilation with es_ES.ISO8859-15 locale + on Solaris 10. (Urko Benito via tomwhite) + + HADOOP-6645. Bugs on listStatus for HarFileSystem (rodrigo via mahadev) + + HADOOP-6645. Re: Bugs on listStatus for HarFileSystem (rodrigo via + mahadev) + + HADOOP-6654. Fix code example in WritableComparable javadoc. (Tom White + via szetszwo) + + HADOOP-6640. FileSystem.get() does RPC retries within a static + synchronized block. (hairong) + + HADOOP-6691. TestFileSystemCaching sometimes hangs. (hairong) + + HADOOP-6507. Hadoop Common Docs - delete 3 doc files that do not belong + under Common. (Corinne Chandel via tomwhite) + + HADOOP-6439. Fixes handling of deprecated keys to follow order in which + keys are defined. (V.V.Chaitanya Krishna via yhemanth) + + HADOOP-6690. FilterFileSystem correctly handles setTimes call. + (Rodrigo Schmidt via dhruba) + + HADOOP-6703. Prevent renaming a file, directory or symbolic link to + itself. (Eli Collins via suresh) + + HADOOP-6710. Symbolic umask for file creation is not conformant with posix. + (suresh) + + HADOOP-6719. Insert all missing methods in FilterFs. + (Rodrigo Schmidt via dhruba) + + HADOOP-6724. IPC doesn't properly handle IOEs thrown by socket factory. + (Todd Lipcon via tomwhite) + + HADOOP-6722. NetUtils.connect should check that it hasn't connected a socket + to itself. (Todd Lipcon via tomwhite) + + HADOOP-6634. Fix AccessControlList to use short names to verify access + control. (Vinod Kumar Vavilapalli via sharad) + + HADOOP-6709. Re-instate deprecated FileSystem methods that were removed + after 0.20. (tomwhite) + + HADOOP-6630. hadoop-config.sh fails to get executed if hadoop wrapper + scripts are in path. (Allen Wittenauer via tomwhite) + + HADOOP-6742. Add methods HADOOP-6709 from to TestFilterFileSystem. + (Eli Collins via tomwhite) + + HADOOP-6727. Remove UnresolvedLinkException from public FileContext APIs. + (Eli Collins via tomwhite) + + HADOOP-6631. Fix FileUtil.fullyDelete() to continue deleting other files + despite failure at any level. (Contributed by Ravi Gummadi and + Vinod Kumar Vavilapalli) + + HADOOP-6723. Unchecked exceptions thrown in IPC Connection should not + orphan clients. (Todd Lipcon via tomwhite) + + HADOOP-6404. Rename the generated artifacts to common instead of core. + (tomwhite) + + HADOOP-6461. Webapps aren't located correctly post-split. + (Todd Lipcon and Steve Loughran via tomwhite) + + HADOOP-6826. Revert FileSystem create method that takes CreateFlags. + (tomwhite) + + HADOOP-6800. Harmonize JAR library versions. (tomwhite) + + HADOOP-6847. Problem staging 0.21.0 artifacts to Apache Nexus Maven + Repository (Giridharan Kesavan via cos) + + HADOOP-6819. [Herriot] Shell command for getting the new exceptions in + the logs returning exitcode 1 after executing successfully. (Vinay Thota + via cos) + + HADOOP-6839. [Herriot] Implement a functionality for getting the user list + for creating proxy users. (Vinay Thota via cos) + + HADOOP-6836. [Herriot]: Generic method for adding/modifying the attributes + for new configuration. (Vinay Thota via cos) + + HADOOP-6860. 'compile-fault-inject' should never be called directly. + (Konstantin Boudnik) + + HADOOP-6790. Instrumented (Herriot) build uses too wide mask to include + aspect files. (Konstantin Boudnik) + + HADOOP-6875. [Herriot] Cleanup of temp. configurations is needed upon + restart of a cluster (Vinay Thota via cos) + +Release 0.20.3 - Unreleased + + NEW FEATURES + + HADOOP-6637. Benchmark for establishing RPC session. (shv) + + BUG FIXES + + HADOOP-6760. WebServer shouldn't increase port number in case of negative + port setting caused by Jetty's race (cos) + + HADOOP-6881. Make WritableComparator intialize classes when + looking for their raw comparator, as classes often register raw + comparators in initializers, which are no longer automatically run + in Java 6 when a class is referenced. (cutting via omalley) + + HADOOP-7072. Remove java5 dependencies from build. (cos) + +Release 0.20.204.0 - Unreleased + + NEW FEATURES + + HADOOP-6255. Create RPM and Debian packages for common. Changes deployment + layout to be consistent across the binary tgz, rpm, and deb. Adds setup + scripts for easy one node cluster configuration and user creation. + (Eric Yang via omalley) + +Release 0.20.203.0 - 2011-5-11 + + BUG FIXES + + HADOOP-7258. The Gzip codec should not return null decompressors. (omalley) + +Release 0.20.2 - 2010-2-16 + + NEW FEATURES + + HADOOP-6218. Adds a feature where TFile can be split by Record + Sequence number. (Hong Tang and Raghu Angadi via ddas) + + BUG FIXES + + HADOOP-6231. Allow caching of filesystem instances to be disabled on a + per-instance basis. (tomwhite) + + HADOOP-5759. Fix for IllegalArgumentException when CombineFileInputFormat + is used as job InputFormat. (Amareshwari Sriramadasu via dhruba) + + HADOOP-6097. Fix Path conversion in makeQualified and reset LineReader byte + count at the start of each block in Hadoop archives. (Ben Slusky, Tom + White, and Mahadev Konar via cdouglas) + + HADOOP-6269. Fix threading issue with defaultResource in Configuration. + (Sreekanth Ramakrishnan via cdouglas) + + HADOOP-6460. Reinitializes buffers used for serializing responses in ipc + server on exceeding maximum response size to free up Java heap. (suresh) + + HADOOP-6315. Avoid incorrect use of BuiltInflater/BuiltInDeflater in + GzipCodec. (Aaron Kimball via cdouglas) + + HADOOP-6498. IPC client bug may cause rpc call hang. (Ruyue Ma and + hairong via hairong) + + IMPROVEMENTS + + HADOOP-5611. Fix C++ libraries to build on Debian Lenny. (Todd Lipcon + via tomwhite) + + HADOOP-5612. Some c++ scripts are not chmodded before ant execution. + (Todd Lipcon via tomwhite) + + HADOOP-1849. Add undocumented configuration parameter for per handler + call queue size in IPC Server. (shv) + +Release 0.20.1 - 2009-09-01 + + INCOMPATIBLE CHANGES + + HADOOP-5726. Remove pre-emption from capacity scheduler code base. + (Rahul Kumar Singh via yhemanth) + + HADOOP-5881. Simplify memory monitoring and scheduling related + configuration. (Vinod Kumar Vavilapalli via yhemanth) + + NEW FEATURES + + HADOOP-6080. Introduce -skipTrash option to rm and rmr. + (Jakob Homan via shv) + + HADOOP-3315. Add a new, binary file foramt, TFile. (Hong Tang via cdouglas) + + IMPROVEMENTS + + HADOOP-5711. Change Namenode file close log to info. (szetszwo) + + HADOOP-5736. Update the capacity scheduler documentation for features + like memory based scheduling, job initialization and removal of pre-emption. + (Sreekanth Ramakrishnan via yhemanth) + + HADOOP-5714. Add a metric for NameNode getFileInfo operation. (Jakob Homan + via szetszwo) + + HADOOP-4372. Improves the way history filenames are obtained and manipulated. + (Amar Kamat via ddas) + + HADOOP-5897. Add name-node metrics to capture java heap usage. + (Suresh Srinivas via shv) + + OPTIMIZATIONS + + BUG FIXES + + HADOOP-5691. Makes org.apache.hadoop.mapreduce.Reducer concrete class + instead of abstract. (Amareshwari Sriramadasu via sharad) + + HADOOP-5646. Fixes a problem in TestQueueCapacities. + (Vinod Kumar Vavilapalli via ddas) + + HADOOP-5655. TestMRServerPorts fails on java.net.BindException. (Devaraj + Das via hairong) + + HADOOP-5654. TestReplicationPolicy.<init> fails on java.net.BindException. + (hairong) + + HADOOP-5688. Fix HftpFileSystem checksum path construction. (Tsz Wo + (Nicholas) Sze via cdouglas) + + HADOOP-4674. Fix fs help messages for -test, -text, -tail, -stat + and -touchz options. (Ravi Phulari via szetszwo) + + HADOOP-5718. Remove the check for the default queue in capacity scheduler. + (Sreekanth Ramakrishnan via yhemanth) + + HADOOP-5719. Remove jobs that failed initialization from the waiting queue + in the capacity scheduler. (Sreekanth Ramakrishnan via yhemanth) + + HADOOP-4744. Attaching another fix to the jetty port issue. The TaskTracker + kills itself if it ever discovers that the port to which jetty is actually + bound is invalid (-1). (ddas) + + HADOOP-5349. Fixes a problem in LocalDirAllocator to check for the return + path value that is returned for the case where the file we want to write + is of an unknown size. (Vinod Kumar Vavilapalli via ddas) + + HADOOP-5636. Prevents a job from going to RUNNING state after it has been + KILLED (this used to happen when the SetupTask would come back with a + success after the job has been killed). (Amar Kamat via ddas) + + HADOOP-5641. Fix a NullPointerException in capacity scheduler's memory + based scheduling code when jobs get retired. (yhemanth) + + HADOOP-5828. Use absolute path for mapred.local.dir of JobTracker in + MiniMRCluster. (yhemanth) + + HADOOP-4981. Fix capacity scheduler to schedule speculative tasks + correctly in the presence of High RAM jobs. + (Sreekanth Ramakrishnan via yhemanth) + + HADOOP-5210. Solves a problem in the progress report of the reduce task. + (Ravi Gummadi via ddas) + + HADOOP-5850. Fixes a problem to do with not being able to jobs with + 0 maps/reduces. (Vinod K V via ddas) + + HADOOP-4626. Correct the API links in hdfs forrest doc so that they + point to the same version of hadoop. (szetszwo) + + HADOOP-5883. Fixed tasktracker memory monitoring to account for + momentary spurts in memory usage due to java's fork() model. + (yhemanth) + + HADOOP-5539. Fixes a problem to do with not preserving intermediate + output compression for merged data. + (Jothi Padmanabhan and Billy Pearson via ddas) + + HADOOP-5932. Fixes a problem in capacity scheduler in computing + available memory on a tasktracker. + (Vinod Kumar Vavilapalli via yhemanth) + + HADOOP-5908. Fixes a problem to do with ArithmeticException in the + JobTracker when there are jobs with 0 maps. (Amar Kamat via ddas) + + HADOOP-5924. Fixes a corner case problem to do with job recovery with + empty history files. Also, after a JT restart, sends KillTaskAction to + tasks that report back but the corresponding job hasn't been initialized + yet. (Amar Kamat via ddas) + + HADOOP-5882. Fixes a reducer progress update problem for new mapreduce + api. (Amareshwari Sriramadasu via sharad) + + HADOOP-5746. Fixes a corner case problem in Streaming, where if an exception + happens in MROutputThread after the last call to the map/reduce method, the + exception goes undetected. (Amar Kamat via ddas) + + HADOOP-5884. Fixes accounting in capacity scheduler so that high RAM jobs + take more slots. (Vinod Kumar Vavilapalli via yhemanth) + + HADOOP-5937. Correct a safemode message in FSNamesystem. (Ravi Phulari + via szetszwo) + + HADOOP-5869. Fix bug in assignment of setup / cleanup task that was + causing TestQueueCapacities to fail. + (Sreekanth Ramakrishnan via yhemanth) + + HADOOP-5921. Fixes a problem in the JobTracker where it sometimes never used + to come up due to a system file creation on JobTracker's system-dir failing. + This problem would sometimes show up only when the FS for the system-dir + (usually HDFS) is started at nearly the same time as the JobTracker. + (Amar Kamat via ddas) + + HADOOP-5920. Fixes a testcase failure for TestJobHistory. + (Amar Kamat via ddas) + + HADOOP-6139. Fix the FsShell help messages for rm and rmr. (Jakob Homan + via szetszwo) + + HADOOP-6145. Fix FsShell rm/rmr error messages when there is a FNFE. + (Jakob Homan via szetszwo) + + HADOOP-6150. Users should be able to instantiate comparator using TFile + API. (Hong Tang via rangadi) + +Release 0.20.0 - 2009-04-15 + + INCOMPATIBLE CHANGES + + HADOOP-4210. Fix findbugs warnings for equals implementations of mapred ID + classes. Removed public, static ID::read and ID::forName; made ID an + abstract class. (Suresh Srinivas via cdouglas) + + HADOOP-4253. Fix various warnings generated by findbugs. + Following deprecated methods in RawLocalFileSystem are removed: + public String getName() + public void lock(Path p, boolean shared) + public void release(Path p) + (Suresh Srinivas via johan) + + HADOOP-4618. Move http server from FSNamesystem into NameNode. + FSNamesystem.getNameNodeInfoPort() is removed. + FSNamesystem.getDFSNameNodeMachine() and FSNamesystem.getDFSNameNodePort() + replaced by FSNamesystem.getDFSNameNodeAddress(). + NameNode(bindAddress, conf) is removed. + (shv) + + HADOOP-4567. GetFileBlockLocations returns the NetworkTopology + information of the machines where the blocks reside. (dhruba) + + HADOOP-4435. The JobTracker WebUI displays the amount of heap memory + in use. (dhruba) + + HADOOP-4628. Move Hive into a standalone subproject. (omalley) + + HADOOP-4188. Removes task's dependency on concrete filesystems. + (Sharad Agarwal via ddas) + + HADOOP-1650. Upgrade to Jetty 6. (cdouglas) + + HADOOP-3986. Remove static Configuration from JobClient. (Amareshwari + Sriramadasu via cdouglas) + JobClient::setCommandLineConfig is removed + JobClient::getCommandLineConfig is removed + JobShell, TestJobShell classes are removed + + HADOOP-4422. S3 file systems should not create bucket. + (David Phillips via tomwhite) + + HADOOP-4035. Support memory based scheduling in capacity scheduler. + (Vinod Kumar Vavilapalli via yhemanth) + + HADOOP-3497. Fix bug in overly restrictive file globbing with a + PathFilter. (tomwhite) + + HADOOP-4445. Replace running task counts with running task + percentage in capacity scheduler UI. (Sreekanth Ramakrishnan via + yhemanth) + + HADOOP-4631. Splits the configuration into three parts - one for core, + one for mapred and the last one for HDFS. (Sharad Agarwal via cdouglas) + + HADOOP-3344. Fix libhdfs build to use autoconf and build the same + architecture (32 vs 64 bit) of the JVM running Ant. The libraries for + pipes, utils, and libhdfs are now all in c++/<os_osarch_jvmdatamodel>/lib. + (Giridharan Kesavan via nigel) + + HADOOP-4874. Remove LZO codec because of licensing issues. (omalley) + + HADOOP-4970. The full path name of a file is preserved inside Trash. + (Prasad Chakka via dhruba) + + HADOOP-4103. NameNode keeps a count of missing blocks. It warns on + WebUI if there are such blocks. '-report' and '-metaSave' have extra + info to track such blocks. (Raghu Angadi) + + HADOOP-4783. Change permissions on history files on the jobtracker + to be only group readable instead of world readable. + (Amareshwari Sriramadasu via yhemanth) + + NEW FEATURES + + HADOOP-4575. Add a proxy service for relaying HsftpFileSystem requests. + Includes client authentication via user certificates and config-based + access control. (Kan Zhang via cdouglas) + + HADOOP-4661. Add DistCh, a new tool for distributed ch{mod,own,grp}. + (szetszwo) + + HADOOP-4709. Add several new features and bug fixes to Chukwa. + Added Hadoop Infrastructure Care Center (UI for visualize data collected + by Chukwa) + Added FileAdaptor for streaming small file in one chunk + Added compression to archive and demux output + Added unit tests and validation for agent, collector, and demux map + reduce job + Added database loader for loading demux output (sequence file) to jdbc + connected database + Added algorithm to distribute collector load more evenly + (Jerome Boulon, Eric Yang, Andy Konwinski, Ariel Rabkin via cdouglas) + + HADOOP-4179. Add Vaidya tool to analyze map/reduce job logs for performanc + problems. (Suhas Gogate via omalley) + + HADOOP-4029. Add NameNode storage information to the dfshealth page and + move DataNode information to a separated page. (Boris Shkolnik via + szetszwo) + + HADOOP-4348. Add service-level authorization for Hadoop. (acmurthy) + + HADOOP-4826. Introduce admin command saveNamespace. (shv) + + HADOOP-3063 BloomMapFile - fail-fast version of MapFile for sparsely + populated key space (Andrzej Bialecki via stack) + + HADOOP-1230. Add new map/reduce API and deprecate the old one. Generally, + the old code should work without problem. The new api is in + org.apache.hadoop.mapreduce and the old classes in org.apache.hadoop.mapred + are deprecated. Differences in the new API: + 1. All of the methods take Context objects that allow us to add new + methods without breaking compatability. + 2. Mapper and Reducer now have a "run" method that is called once and + contains the control loop for the task, which lets applications + replace it. + 3. Mapper and Reducer by default are Identity Mapper and Reducer. + 4. The FileOutputFormats use part-r-00000 for the output of reduce 0 and + part-m-00000 for the output of map 0. + 5. The reduce grouping comparator now uses the raw compare instead of + object compare. + 6. The number of maps in FileInputFormat is controlled by min and max + split size rather than min size and the desired number of maps. + (omalley) + + HADOOP-3305. Use Ivy to manage dependencies. (Giridharan Kesavan + and Steve Loughran via cutting) + + IMPROVEMENTS + + HADOOP-4749. Added a new counter REDUCE_INPUT_BYTES. (Yongqiang He via + zshao) + + HADOOP-4234. Fix KFS "glue" layer to allow applications to interface + with multiple KFS metaservers. (Sriram Rao via lohit) + + HADOOP-4245. Update to latest version of KFS "glue" library jar. + (Sriram Rao via lohit) + + HADOOP-4244. Change test-patch.sh to check Eclipse classpath no matter + it is run by Hudson or not. (szetszwo) + + HADOOP-3180. Add name of missing class to WritableName.getClass + IOException. (Pete Wyckoff via omalley) + + HADOOP-4178. Make the capacity scheduler's default values configurable. + (Sreekanth Ramakrishnan via omalley) + + HADOOP-4262. Generate better error message when client exception has null + message. (stevel via omalley) + + HADOOP-4226. Refactor and document LineReader to make it more readily + understandable. (Yuri Pradkin via cdouglas) + + HADOOP-4238. When listing jobs, if scheduling information isn't available + print NA instead of empty output. (Sreekanth Ramakrishnan via johan) + + HADOOP-4284. Support filters that apply to all requests, or global filters, + to HttpServer. (Kan Zhang via cdouglas) + + HADOOP-4276. Improve the hashing functions and deserialization of the + mapred ID classes. (omalley) + + HADOOP-4485. Add a compile-native ant task, as a shorthand. (enis) + + HADOOP-4454. Allow # comments in slaves file. (Rama Ramasamy via omalley) + + HADOOP-3461. Remove hdfs.StringBytesWritable. (szetszwo) + + HADOOP-4437. Use Halton sequence instead of java.util.Random in + PiEstimator. (szetszwo) + + HADOOP-4572. Change INode and its sub-classes to package private. + (szetszwo) + + HADOOP-4187. Does a runtime lookup for JobConf/JobConfigurable, and if + found, invokes the appropriate configure method. (Sharad Agarwal via ddas) + + HADOOP-4453. Improve ssl configuration and handling in HsftpFileSystem, + particularly when used with DistCp. (Kan Zhang via cdouglas) + + HADOOP-4583. Several code optimizations in HDFS. (Suresh Srinivas via + szetszwo) + + HADOOP-3923. Remove org.apache.hadoop.mapred.StatusHttpServer. (szetszwo) + + HADOOP-4622. Explicitly specify interpretor for non-native + pipes binaries. (Fredrik Hedberg via johan) + + HADOOP-4505. Add a unit test to test faulty setup task and cleanup + task killing the job. (Amareshwari Sriramadasu via johan) + + HADOOP-4608. Don't print a stack trace when the example driver gets an + unknown program to run. (Edward Yoon via omalley) + + HADOOP-4645. Package HdfsProxy contrib project without the extra level + of directories. (Kan Zhang via omalley) + + HADOOP-4126. Allow access to HDFS web UI on EC2 (tomwhite via omalley) + + HADOOP-4612. Removes RunJar's dependency on JobClient. + (Sharad Agarwal via ddas) + + HADOOP-4185. Adds setVerifyChecksum() method to FileSystem. + (Sharad Agarwal via ddas) + + HADOOP-4523. Prevent too many tasks scheduled on a node from bringing + it down by monitoring for cumulative memory usage across tasks. + (Vinod Kumar Vavilapalli via yhemanth) + + HADOOP-4640. Adds an input format that can split lzo compressed + text files. (johan) + + HADOOP-4666. Launch reduces only after a few maps have run in the + Fair Scheduler. (Matei Zaharia via johan) + + HADOOP-4339. Remove redundant calls from FileSystem/FsShell when + generating/processing ContentSummary. (David Phillips via cdouglas) + + HADOOP-2774. Add counters tracking records spilled to disk in MapTask and + ReduceTask. (Ravi Gummadi via cdouglas) + + HADOOP-4513. Initialize jobs asynchronously in the capacity scheduler. + (Sreekanth Ramakrishnan via yhemanth) + + HADOOP-4649. Improve abstraction for spill indices. (cdouglas) + + HADOOP-3770. Add gridmix2, an iteration on the gridmix benchmark. (Runping + Qi via cdouglas) + + HADOOP-4708. Add support for dfsadmin commands in TestCLI. (Boris Shkolnik + via cdouglas) + + HADOOP-4758. Add a splitter for metrics contexts to support more than one + type of collector. (cdouglas) + + HADOOP-4722. Add tests for dfsadmin quota error messages. (Boris Shkolnik + via cdouglas) + + HADOOP-4690. fuse-dfs - create source file/function + utils + config + + main source files. (pete wyckoff via mahadev) + + HADOOP-3750. Fix and enforce module dependencies. (Sharad Agarwal via + tomwhite) + + HADOOP-4747. Speed up FsShell::ls by removing redundant calls to the + filesystem. (David Phillips via cdouglas) + + HADOOP-4305. Improves the blacklisting strategy, whereby, tasktrackers + that are blacklisted are not given tasks to run from other jobs, subject + to the following conditions (all must be met): + 1) The TaskTracker has been blacklisted by at least 4 jobs (configurable) + 2) The TaskTracker has been blacklisted 50% more number of times than + the average (configurable) + 3) The cluster has less than 50% trackers blacklisted + Once in 24 hours, a TaskTracker blacklisted for all jobs is given a chance. + Restarting the TaskTracker moves it out of the blacklist. + (Amareshwari Sriramadasu via ddas) + + HADOOP-4688. Modify the MiniMRDFSSort unit test to spill multiple times, + exercising the map-side merge code. (cdouglas) + + HADOOP-4737. Adds the KILLED notification when jobs get killed. + (Amareshwari Sriramadasu via ddas) + + HADOOP-4728. Add a test exercising different namenode configurations. + (Boris Shkolnik via cdouglas) + + HADOOP-4807. Adds JobClient commands to get the active/blacklisted tracker + names. Also adds commands to display running/completed task attempt IDs. + (ddas) + + HADOOP-4699. Remove checksum validation from map output servlet. (cdouglas) + + HADOOP-4838. Added a registry to automate metrics and mbeans management. + (Sanjay Radia via acmurthy) + + HADOOP-3136. Fixed the default scheduler to assign multiple tasks to each + tasktracker per heartbeat, when feasible. To ensure locality isn't hurt + too badly, the scheudler will not assign more than one off-switch task per + heartbeat. The heartbeat interval is also halved since the task-tracker is + fixed to no longer send out heartbeats on each task completion. A + slow-start for scheduling reduces is introduced to ensure that reduces + aren't started till sufficient number of maps are done, else reduces of + jobs whose maps aren't scheduled might swamp the cluster. + Configuration changes to mapred-default.xml: + add mapred.reduce.slowstart.completed.maps + (acmurthy) + + HADOOP-4545. Add example and test case of secondary sort for the reduce. + (omalley) + + HADOOP-4753. Refactor gridmix2 to reduce code duplication. (cdouglas) + + HADOOP-4909. Fix Javadoc and make some of the API more consistent in their + use of the JobContext instead of Configuration. (omalley) + + HADOOP-4920. Stop storing Forrest output in Subversion. (cutting) + + HADOOP-4948. Add parameters java5.home and forrest.home to the ant commands + in test-patch.sh. (Giridharan Kesavan via szetszwo) + + HADOOP-4830. Add end-to-end test cases for testing queue capacities. + (Vinod Kumar Vavilapalli via yhemanth) + + HADOOP-4980. Improve code layout of capacity scheduler to make it + easier to fix some blocker bugs. (Vivek Ratan via yhemanth) + + HADOOP-4916. Make user/location of Chukwa installation configurable by an + external properties file. (Eric Yang via cdouglas) + + HADOOP-4950. Make the CompressorStream, DecompressorStream, + BlockCompressorStream, and BlockDecompressorStream public to facilitate + non-Hadoop codecs. (omalley) + + HADOOP-4843. Collect job history and configuration in Chukwa. (Eric Yang + via cdouglas) + + HADOOP-5030. Build Chukwa RPM to install into configured directory. (Eric + Yang via cdouglas) + + HADOOP-4828. Updates documents to do with configuration (HADOOP-4631). + (Sharad Agarwal via ddas) + + HADOOP-4939. Adds a test that would inject random failures for tasks in + large jobs and would also inject TaskTracker failures. (ddas) + + HADOOP-4944. A configuration file can include other configuration + files. (Rama Ramasamy via dhruba) + + HADOOP-4804. Provide Forrest documentation for the Fair Scheduler. + (Sreekanth Ramakrishnan via yhemanth) + + HADOOP-5248. A testcase that checks for the existence of job directory + after the job completes. Fails if it exists. (ddas) + + HADOOP-4664. Introduces multiple job initialization threads, where the + number of threads are configurable via mapred.jobinit.threads. + (Matei Zaharia and Jothi Padmanabhan via ddas) + + HADOOP-4191. Adds a testcase for JobHistory. (Ravi Gummadi via ddas) + + HADOOP-5466. Change documenation CSS style for headers and code. (Corinne + Chandel via szetszwo) + + HADOOP-5275. Add ivy directory and files to built tar. + (Giridharan Kesavan via nigel) + + HADOOP-5468. Add sub-menus to forrest documentation and make some minor + edits. (Corinne Chandel via szetszwo) + + HADOOP-5437. Fix TestMiniMRDFSSort to properly test jvm-reuse. (omalley) + + HADOOP-5521. Removes dependency of TestJobInProgress on RESTART_COUNT + JobHistory tag. (Ravi Gummadi via ddas) + + OPTIMIZATIONS + + HADOOP-3293. Fixes FileInputFormat to do provide locations for splits + based on the rack/host that has the most number of bytes. + (Jothi Padmanabhan via ddas) + + HADOOP-4683. Fixes Reduce shuffle scheduler to invoke + getMapCompletionEvents in a separate thread. (Jothi Padmanabhan + via ddas) + + BUG FIXES + + HADOOP-4204. Fix findbugs warnings related to unused variables, naive + Number subclass instantiation, Map iteration, and badly scoped inner + classes. (Suresh Srinivas via cdouglas) + + HADOOP-4207. Update derby jar file to release 10.4.2 release. + (Prasad Chakka via dhruba) + + HADOOP-4325. SocketInputStream.read() should return -1 in case EOF. + (Raghu Angadi) + + HADOOP-4408. FsAction functions need not create new objects. (cdouglas) + + HADOOP-4440. TestJobInProgressListener tests for jobs killed in queued + state (Amar Kamat via ddas) + + HADOOP-4346. Implement blocking connect so that Hadoop is not affected + by selector problem with JDK default implementation. (Raghu Angadi) + + HADOOP-4388. If there are invalid blocks in the transfer list, Datanode + should handle them and keep transferring the remaining blocks. (Suresh + Srinivas via szetszwo) + + HADOOP-4587. Fix a typo in Mapper javadoc. (Koji Noguchi via szetszwo) + + HADOOP-4530. In fsck, HttpServletResponse sendError fails with + IllegalStateException. (hairong) + + HADOOP-4377. Fix a race condition in directory creation in + NativeS3FileSystem. (David Phillips via cdouglas) + + HADOOP-4621. Fix javadoc warnings caused by duplicate jars. (Kan Zhang via + cdouglas) + + HADOOP-4566. Deploy new hive code to support more types. + (Zheng Shao via dhruba) + + HADOOP-4571. Add chukwa conf files to svn:ignore list. (Eric Yang via + szetszwo) + + HADOOP-4589. Correct PiEstimator output messages and improve the code + readability. (szetszwo) + + HADOOP-4650. Correct a mismatch between the default value of + local.cache.size in the config and the source. (Jeff Hammerbacher via + cdouglas) + + HADOOP-4606. Fix cygpath error if the log directory does not exist. + (szetszwo via omalley) + + HADOOP-4141. Fix bug in ScriptBasedMapping causing potential infinite + loop on misconfigured hadoop-site. (Aaron Kimball via tomwhite) + + HADOOP-4691. Correct a link in the javadoc of IndexedSortable. (szetszwo) + + HADOOP-4598. '-setrep' command skips under-replicated blocks. (hairong) + + HADOOP-4429. Set defaults for user, group in UnixUserGroupInformation so + login fails more predictably when misconfigured. (Alex Loddengaard via + cdouglas) + + HADOOP-4676. Fix broken URL in blacklisted tasktrackers page. (Amareshwari + Sriramadasu via cdouglas) + + HADOOP-3422 Ganglia counter metrics are all reported with the metric + name "value", so the counter values can not be seen. (Jason Attributor + and Brian Bockelman via stack) + + HADOOP-4704. Fix javadoc typos "the the". (szetszwo) + + HADOOP-4677. Fix semantics of FileSystem::getBlockLocations to return + meaningful values. (Hong Tang via cdouglas) + + HADOOP-4669. Use correct operator when evaluating whether access time is + enabled (Dhruba Borthakur via cdouglas) + + HADOOP-4732. Pass connection and read timeouts in the correct order when + setting up fetch in reduce. (Amareshwari Sriramadasu via cdouglas) + + HADOOP-4558. Fix capacity reclamation in capacity scheduler. + (Amar Kamat via yhemanth) + + HADOOP-4770. Fix rungridmix_2 script to work with RunJar. (cdouglas) + + HADOOP-4738. When using git, the saveVersion script will use only the + commit hash for the version and not the message, which requires escaping. + (cdouglas) + + HADOOP-4576. Show pending job count instead of task count in the UI per + queue in capacity scheduler. (Sreekanth Ramakrishnan via yhemanth) + + HADOOP-4623. Maintain running tasks even if speculative execution is off. + (Amar Kamat via yhemanth) + + HADOOP-4786. Fix broken compilation error in + TestTrackerBlacklistAcrossJobs. (yhemanth) + + HADOOP-4785. Fixes theJobTracker heartbeat to not make two calls to + System.currentTimeMillis(). (Amareshwari Sriramadasu via ddas) + + HADOOP-4792. Add generated Chukwa configuration files to version control + ignore lists. (cdouglas) + + HADOOP-4796. Fix Chukwa test configuration, remove unused components. (Eric + Yang via cdouglas) + + HADOOP-4708. Add binaries missed in the initial checkin for Chukwa. (Eric + Yang via cdouglas) + + HADOOP-4805. Remove black list collector from Chukwa Agent HTTP Sender. + (Eric Yang via cdouglas) + + HADOOP-4837. Move HADOOP_CONF_DIR configuration to chukwa-env.sh (Jerome + Boulon via cdouglas) + + HADOOP-4825. Use ps instead of jps for querying process status in Chukwa. + (Eric Yang via cdouglas) + + HADOOP-4844. Fixed javadoc for + org.apache.hadoop.fs.permission.AccessControlException to document that + it's deprecated in favour of + org.apache.hadoop.security.AccessControlException. (acmurthy) + + HADOOP-4706. Close the underlying output stream in + IFileOutputStream::close. (Jothi Padmanabhan via cdouglas) + + HADOOP-4855. Fixed command-specific help messages for refreshServiceAcl in + DFSAdmin and MRAdmin. (acmurthy) + + HADOOP-4820. Remove unused method FSNamesystem::deleteInSafeMode. (Suresh + Srinivas via cdouglas) + + HADOOP-4698. Lower io.sort.mb to 10 in the tests and raise the junit memory + limit to 512m from 256m. (Nigel Daley via cdouglas) + + HADOOP-4860. Split TestFileTailingAdapters into three separate tests to + avoid contention. (Eric Yang via cdouglas) + + HADOOP-3921. Fixed clover (code coverage) target to work with JDK 6. + (tomwhite via nigel) + + HADOOP-4845. Modify the reduce input byte counter to record only the + compressed size and add a human-readable label. (Yongqiang He via cdouglas) + + HADOOP-4458. Add a test creating symlinks in the working directory. + (Amareshwari Sriramadasu via cdouglas) + + HADOOP-4879. Fix org.apache.hadoop.mapred.Counters to correctly define + Object.equals rather than depend on contentEquals api. (omalley via + acmurthy) + + HADOOP-4791. Fix rpm build process for Chukwa. (Eric Yang via cdouglas) + + HADOOP-4771. Correct initialization of the file count for directories + with quotas. (Ruyue Ma via shv) + + HADOOP-4878. Fix eclipse plugin classpath file to point to ivy's resolved + lib directory and added the same to test-patch.sh. (Giridharan Kesavan via + acmurthy) + + HADOOP-4774. Fix default values of some capacity scheduler configuration + items which would otherwise not work on a fresh checkout. + (Sreekanth Ramakrishnan via yhemanth) + + HADOOP-4876. Fix capacity scheduler reclamation by updating count of + pending tasks correctly. (Sreekanth Ramakrishnan via yhemanth) + + HADOOP-4849. Documentation for Service Level Authorization implemented in + HADOOP-4348. (acmurthy) + + HADOOP-4827. Replace Consolidator with Aggregator macros in Chukwa (Eric + Yang via cdouglas) + + HADOOP-4894. Correctly parse ps output in Chukwa jettyCollector.sh. (Ari + Rabkin via cdouglas) + + HADOOP-4892. Close fds out of Chukwa ExecPlugin. (Ari Rabkin via cdouglas) + + HADOOP-4889. Fix permissions in RPM packaging. (Eric Yang via cdouglas) + + HADOOP-4869. Fixes the TT-JT heartbeat to have an explicit flag for + restart apart from the initialContact flag that there was earlier. + (Amareshwari Sriramadasu via ddas) + + HADOOP-4716. Fixes ReduceTask.java to clear out the mapping between + hosts and MapOutputLocation upon a JT restart (Amar Kamat via ddas) + + HADOOP-4880. Removes an unnecessary testcase from TestJobTrackerRestart. + (Amar Kamat via ddas) + + HADOOP-4924. Fixes a race condition in TaskTracker re-init. (ddas) + + HADOOP-4854. Read reclaim capacity interval from capacity scheduler + configuration. (Sreekanth Ramakrishnan via yhemanth) + + HADOOP-4896. HDFS Fsck does not load HDFS configuration. (Raghu Angadi) + + HADOOP-4956. Creates TaskStatus for failed tasks with an empty Counters + object instead of null. (ddas) + + HADOOP-4979. Fix capacity scheduler to block cluster for failed high + RAM requirements across task types. (Vivek Ratan via yhemanth) + + HADOOP-4949. Fix native compilation. (Chris Douglas via acmurthy) + + HADOOP-4787. Fixes the testcase TestTrackerBlacklistAcrossJobs which was + earlier failing randomly. (Amareshwari Sriramadasu via ddas) + + HADOOP-4914. Add description fields to Chukwa init.d scripts (Eric Yang via + cdouglas) + + HADOOP-4884. Make tool tip date format match standard HICC format. (Eric + Yang via cdouglas) + + HADOOP-4925. Make Chukwa sender properties configurable. (Ari Rabkin via + cdouglas) + + HADOOP-4947. Make Chukwa command parsing more forgiving of whitespace. (Ari + Rabkin via cdouglas) + + HADOOP-5026. Make chukwa/bin scripts executable in repository. (Andy + Konwinski via cdouglas) + + HADOOP-4977. Fix a deadlock between the reclaimCapacity and assignTasks + in capacity scheduler. (Vivek Ratan via yhemanth) + + HADOOP-4988. Fix reclaim capacity to work even when there are queues with + no capacity. (Vivek Ratan via yhemanth) + + HADOOP-5065. Remove generic parameters from argument to + setIn/OutputFormatClass so that it works with SequenceIn/OutputFormat. + (cdouglas via omalley) + + HADOOP-4818. Pass user config to instrumentation API. (Eric Yang via + cdouglas) + + HADOOP-4993. Fix Chukwa agent configuration and startup to make it both + more modular and testable. (Ari Rabkin via cdouglas) + + HADOOP-5048. Fix capacity scheduler to correctly cleanup jobs that are + killed after initialization, but before running. + (Sreekanth Ramakrishnan via yhemanth) + + HADOOP-4671. Mark loop control variables shared between threads as + volatile. (cdouglas) + + HADOOP-5079. HashFunction inadvertently destroys some randomness + (Jonathan Ellis via stack) + + HADOOP-4999. A failure to write to FsEditsLog results in + IndexOutOfBounds exception. (Boris Shkolnik via rangadi) + + HADOOP-5139. Catch IllegalArgumentException during metrics registration + in RPC. (Hairong Kuang via szetszwo) + + HADOOP-5085. Copying a file to local with Crc throws an exception. + (hairong) + + HADOOP-5211. Fix check for job completion in TestSetupAndCleanupFailure. + (enis) + + HADOOP-5254. The Configuration class should be able to work with XML + parsers that do not support xmlinclude. (Steve Loughran via dhruba) + + HADOOP-4692. Namenode in infinite loop for replicating/deleting corrupt + blocks. (hairong) + + HADOOP-5255. Fix use of Math.abs to avoid overflow. (Jonathan Ellis via + cdouglas) + + HADOOP-5269. Fixes a problem to do with tasktracker holding on to + FAILED_UNCLEAN or KILLED_UNCLEAN tasks forever. (Amareshwari Sriramadasu + via ddas) + + HADOOP-5214. Fixes a ConcurrentModificationException while the Fairshare + Scheduler accesses the tasktrackers stored by the JobTracker. + (Rahul Kumar Singh via yhemanth) + + HADOOP-5233. Addresses the three issues - Race condition in updating + status, NPE in TaskTracker task localization when the conf file is missing + (HADOOP-5234) and NPE in handling KillTaskAction of a cleanup task + (HADOOP-5235). (Amareshwari Sriramadasu via ddas) + + HADOOP-5247. Introduces a broadcast of KillJobAction to all trackers when + a job finishes. This fixes a bunch of problems to do with NPE when a + completed job is not in memory and a tasktracker comes to the jobtracker + with a status report of a task belonging to that job. (Amar Kamat via ddas) + + HADOOP-5282. Fixed job history logs for task attempts that are + failed by the JobTracker, say due to lost task trackers. (Amar + Kamat via yhemanth) + + HADOOP-5241. Fixes a bug in disk-space resource estimation. Makes + the estimation formula linear where blowUp = + Total-Output/Total-Input. (Sharad Agarwal via ddas) + + HADOOP-5142. Fix MapWritable#putAll to store key/value classes. + (Do??acan G??ney via enis) + + HADOOP-4744. Workaround for jetty6 returning -1 when getLocalPort + is invoked on the connector. The workaround patch retries a few + times before failing. (Jothi Padmanabhan via yhemanth) + + HADOOP-5280. Adds a check to prevent a task state transition from + FAILED to any of UNASSIGNED, RUNNING, COMMIT_PENDING or + SUCCEEDED. (ddas) + + HADOOP-5272. Fixes a problem to do with detecting whether an + attempt is the first attempt of a Task. This affects JobTracker + restart. (Amar Kamat via ddas) + + HADOOP-5306. Fixes a problem to do with logging/parsing the http port of a + lost tracker. Affects JobTracker restart. (Amar Kamat via ddas) + + HADOOP-5111. Fix Job::set* methods to work with generics. (cdouglas) + + HADOOP-5274. Fix gridmix2 dependency on wordcount example. (cdouglas) + + HADOOP-5145. Balancer sometimes runs out of memory after running + days or weeks. (hairong) + + HADOOP-5338. Fix jobtracker restart to clear task completion + events cached by tasktrackers forcing them to fetch all events + afresh, thus avoiding missed task completion events on the + tasktrackers. (Amar Kamat via yhemanth) + + HADOOP-4695. Change TestGlobalFilter so that it allows a web page to be + filtered more than once for a single access. (Kan Zhang via szetszwo) + + HADOOP-5298. Change TestServletFilter so that it allows a web page to be + filtered more than once for a single access. (szetszwo) + + HADOOP-5432. Disable ssl during unit tests in hdfsproxy, as it is unused + and causes failures. (cdouglas) + + HADOOP-5416. Correct the shell command "fs -test" forrest doc description. + (Ravi Phulari via szetszwo) + + HADOOP-5327. Fixed job tracker to remove files from system directory on + ACL check failures and also check ACLs on restart. + (Amar Kamat via yhemanth) + + HADOOP-5395. Change the exception message when a job is submitted to an + invalid queue. (Rahul Kumar Singh via yhemanth) + + HADOOP-5276. Fixes a problem to do with updating the start time of + a task when the tracker that ran the task is lost. (Amar Kamat via + ddas) + + HADOOP-5278. Fixes a problem to do with logging the finish time of + a task during recovery (after a JobTracker restart). (Amar Kamat + via ddas) + + HADOOP-5490. Fixes a synchronization problem in the + EagerTaskInitializationListener class. (Jothi Padmanabhan via + ddas) + + HADOOP-5493. The shuffle copier threads return the codecs back to + the pool when the shuffle completes. (Jothi Padmanabhan via ddas) + + HADOOP-5414. Fixes IO exception while executing hadoop fs -touchz + fileName by making sure that lease renewal thread exits before dfs + client exits. (hairong) + + HADOOP-5103. FileInputFormat now reuses the clusterMap network + topology object and that brings down the log messages in the + JobClient to do with NetworkTopology.add significantly. (Jothi + Padmanabhan via ddas) + + HADOOP-5483. Fixes a problem in the Directory Cleanup Thread due to which + TestMiniMRWithDFS sometimes used to fail. (ddas) + + HADOOP-5281. Prevent sharing incompatible ZlibCompressor instances between + GzipCodec and DefaultCodec. (cdouglas) + + HADOOP-5463. Balancer throws "Not a host:port pair" unless port is + specified in fs.default.name. (Stuart White via hairong) + + HADOOP-5514. Fix JobTracker metrics and add metrics for wating, failed + tasks. (cdouglas) + + HADOOP-5516. Fix NullPointerException in TaskMemoryManagerThread + that comes when monitored processes disappear when the thread is + running. (Vinod Kumar Vavilapalli via yhemanth) + + HADOOP-5382. Support combiners in the new context object API. (omalley) + + HADOOP-5471. Fixes a problem to do with updating the log.index file in the + case where a cleanup task is run. (Amareshwari Sriramadasu via ddas) + + HADOOP-5534. Fixed a deadlock in Fair scheduler's servlet. + (Rahul Kumar Singh via yhemanth) + + HADOOP-5328. Fixes a problem in the renaming of job history files during + job recovery. (Amar Kamat via ddas) + + HADOOP-5417. Don't ignore InterruptedExceptions that happen when calling + into rpc. (omalley) + + HADOOP-5320. Add a close() in TestMapReduceLocal. (Jothi Padmanabhan + via szetszwo) + + HADOOP-5520. Fix a typo in disk quota help message. (Ravi Phulari + via szetszwo) + + HADOOP-5519. Remove claims from mapred-default.xml that prime numbers + of tasks are helpful. (Owen O'Malley via szetszwo) + + HADOOP-5484. TestRecoveryManager fails wtih FileAlreadyExistsException. + (Amar Kamat via hairong) + + HADOOP-5564. Limit the JVM heap size in the java command for initializing + JAVA_PLATFORM. (Suresh Srinivas via szetszwo) + + HADOOP-5565. Add API for failing/finalized jobs to the JT metrics + instrumentation. (Jerome Boulon via cdouglas) + + HADOOP-5390. Remove duplicate jars from tarball, src from binary tarball + added by hdfsproxy. (Zhiyong Zhang via cdouglas) + + HADOOP-5066. Building binary tarball should not build docs/javadocs, copy + src, or run jdiff. (Giridharan Kesavan via cdouglas) + + HADOOP-5459. Fix undetected CRC errors where intermediate output is closed + before it has been completely consumed. (cdouglas) + + HADOOP-5571. Remove widening primitive conversion in TupleWritable mask + manipulation. (Jingkei Ly via cdouglas) + + HADOOP-5588. Remove an unnecessary call to listStatus(..) in + FileSystem.globStatusInternal(..). (Hairong Kuang via szetszwo) + + HADOOP-5473. Solves a race condition in killing a task - the state is KILLED + if there is a user request pending to kill the task and the TT reported + the state as SUCCESS. (Amareshwari Sriramadasu via ddas) + + HADOOP-5576. Fix LocalRunner to work with the new context object API in + mapreduce. (Tom White via omalley) + + HADOOP-4374. Installs a shutdown hook in the Task JVM so that log.index is + updated before the JVM exits. Also makes the update to log.index atomic. + (Ravi Gummadi via ddas) + + HADOOP-5577. Add a verbose flag to mapreduce.Job.waitForCompletion to get + the running job's information printed to the user's stdout as it runs. + (omalley) + + HADOOP-5607. Fix NPE in TestCapacityScheduler. (cdouglas) + + HADOOP-5605. All the replicas incorrectly got marked as corrupt. (hairong) + + HADOOP-5337. JobTracker, upon restart, now waits for the TaskTrackers to + join back before scheduling new tasks. This fixes race conditions associated + with greedy scheduling as was the case earlier. (Amar Kamat via ddas) + + HADOOP-5227. Fix distcp so -update and -delete can be meaningfully + combined. (Tsz Wo (Nicholas), SZE via cdouglas) + + HADOOP-5305. Increase number of files and print debug messages in + TestCopyFiles. (szetszwo) + + HADOOP-5548. Add synchronization for JobTracker methods in RecoveryManager. + (Amareshwari Sriramadasu via sharad) + + HADOOP-3810. NameNode seems unstable on a cluster with little space left. + (hairong) + + HADOOP-5068. Fix NPE in TestCapacityScheduler. (Vinod Kumar Vavilapalli + via szetszwo) + + HADOOP-5585. Clear FileSystem statistics between tasks when jvm-reuse + is enabled. (omalley) + + HADOOP-5394. JobTracker might schedule 2 attempts of the same task + with the same attempt id across restarts. (Amar Kamat via sharad) + + HADOOP-5645. After HADOOP-4920 we need a place to checkin + releasenotes.html. (nigel) + +Release 0.19.2 - 2009-06-30 + + BUG FIXES + + HADOOP-5154. Fixes a deadlock in the fairshare scheduler. + (Matei Zaharia via yhemanth) + + HADOOP-5146. Fixes a race condition that causes LocalDirAllocator to miss + files. (Devaraj Das via yhemanth) + + HADOOP-4638. Fixes job recovery to not crash the job tracker for problems + with a single job file. (Amar Kamat via yhemanth) + + HADOOP-5384. Fix a problem that DataNodeCluster creates blocks with + generationStamp == 1. (szetszwo) + + HADOOP-5376. Fixes the code handling lost tasktrackers to set the task state + to KILLED_UNCLEAN only for relevant type of tasks. + (Amareshwari Sriramadasu via yhemanth) + + HADOOP-5285. Fixes the issues - (1) obtainTaskCleanupTask checks whether job is + inited before trying to lock the JobInProgress (2) Moves the CleanupQueue class + outside the TaskTracker and makes it a generic class that is used by the + JobTracker also for deleting the paths on the job's output fs. (3) Moves the + references to completedJobStore outside the block where the JobTracker is locked. + (ddas) + + HADOOP-5392. Fixes a problem to do with JT crashing during recovery when + the job files are garbled. (Amar Kamat via ddas) + + HADOOP-5332. Appending to files is not allowed (by default) unless + dfs.support.append is set to true. (dhruba) + + HADOOP-5333. libhdfs supports appending to files. (dhruba) + + HADOOP-3998. Fix dfsclient exception when JVM is shutdown. (dhruba) + + HADOOP-5440. Fixes a problem to do with removing a taskId from the list + of taskIds that the TaskTracker's TaskMemoryManager manages. + (Amareshwari Sriramadasu via ddas) + + HADOOP-5446. Restore TaskTracker metrics. (cdouglas) + + HADOOP-5449. Fixes the history cleaner thread. + (Amareshwari Sriramadasu via ddas) + + HADOOP-5479. NameNode should not send empty block replication request to + DataNode. (hairong) + + HADOOP-5259. Job with output hdfs:/user/<username>/outputpath (no + authority) fails with Wrong FS. (Doug Cutting via hairong) + + HADOOP-5522. Documents the setup/cleanup tasks in the mapred tutorial. + (Amareshwari Sriramadasu via ddas) + + HADOOP-5549. ReplicationMonitor should schedule both replication and + deletion work in one iteration. (hairong) + + HADOOP-5554. DataNodeCluster and CreateEditsLog should create blocks with + the same generation stamp value. (hairong via szetszwo) + + HADOOP-5231. Clones the TaskStatus before passing it to the JobInProgress. + (Amareshwari Sriramadasu via ddas) + + HADOOP-4719. Fix documentation of 'ls' format for FsShell. (Ravi Phulari + via cdouglas) + + HADOOP-5374. Fixes a NPE problem in getTasksToSave method. + (Amareshwari Sriramadasu via ddas) + + HADOOP-4780. Cache the size of directories in DistributedCache, avoiding + long delays in recalculating it. (He Yongqiang via cdouglas) + + HADOOP-5551. Prevent directory destruction on file create. + (Brian Bockelman via shv) + + HADOOP-5671. Fix FNF exceptions when copying from old versions of + HftpFileSystem. (Tsz Wo (Nicholas), SZE via cdouglas) + + HADOOP-5213. Fix Null pointer exception caused when bzip2compression + was used and user closed a output stream without writing any data. + (Zheng Shao via dhruba) + + HADOOP-5579. Set errno correctly in libhdfs for permission, quota, and FNF + conditions. (Brian Bockelman via cdouglas) + + HADOOP-5816. Fixes a problem in the KeyFieldBasedComparator to do with + ArrayIndexOutOfBounds exception. (He Yongqiang via ddas) + + HADOOP-5951. Add Apache license header to StorageInfo.java. (Suresh + Srinivas via szetszwo) + +Release 0.19.1 - 2009-02-23 + + IMPROVEMENTS + + HADOOP-4739. Fix spelling and grammar, improve phrasing of some sections in + mapred tutorial. (Vivek Ratan via cdouglas) + + HADOOP-3894. DFSClient logging improvements. (Steve Loughran via shv) + + HADOOP-5126. Remove empty file BlocksWithLocations.java (shv) + + HADOOP-5127. Remove public methods in FSDirectory. (Jakob Homan via shv) + + BUG FIXES + + HADOOP-4697. Fix getBlockLocations in KosmosFileSystem to handle multiple + blocks correctly. (Sriram Rao via cdouglas) + + HADOOP-4420. Add null checks for job, caused by invalid job IDs. + (Aaron Kimball via tomwhite) + + HADOOP-4632. Fix TestJobHistoryVersion to use test.build.dir instead of the + current workding directory for scratch space. (Amar Kamat via cdouglas) + + HADOOP-4508. Fix FSDataOutputStream.getPos() for append. (dhruba via + szetszwo) + + HADOOP-4727. Fix a group checking bug in fill_stat_structure(...) in + fuse-dfs. (Brian Bockelman via szetszwo) + + HADOOP-4836. Correct typos in mapred related documentation. (Jord? Polo + via szetszwo) + + HADOOP-4821. Usage description in the Quotas guide documentations are + incorrect. (Boris Shkolnik via hairong) + + HADOOP-4847. Moves the loading of OutputCommitter to the Task. + (Amareshwari Sriramadasu via ddas) + + HADOOP-4966. Marks completed setup tasks for removal. + (Amareshwari Sriramadasu via ddas) + + HADOOP-4982. TestFsck should run in Eclipse. (shv) + + HADOOP-5008. TestReplication#testPendingReplicationRetry leaves an opened + fd unclosed. (hairong) + + HADOOP-4906. Fix TaskTracker OOM by keeping a shallow copy of JobConf in + TaskTracker.TaskInProgress. (Sharad Agarwal via acmurthy) + + HADOOP-4918. Fix bzip2 compression to work with Sequence Files. + (Zheng Shao via dhruba). + + HADOOP-4965. TestFileAppend3 should close FileSystem. (shv) + + HADOOP-4967. Fixes a race condition in the JvmManager to do with killing + tasks. (ddas) + + HADOOP-5009. DataNode#shutdown sometimes leaves data block scanner + verification log unclosed. (hairong) + + HADOOP-5086. Use the appropriate FileSystem for trash URIs. (cdouglas) + + HADOOP-4955. Make DBOutputFormat us column names from setOutput(). + (Kevin Peterson via enis) + + HADOOP-4862. Minor : HADOOP-3678 did not remove all the cases of + spurious IOExceptions logged by DataNode. (Raghu Angadi) + + HADOOP-5034. NameNode should send both replication and deletion requests + to DataNode in one reply to a heartbeat. (hairong) + + HADOOP-4759. Removes temporary output directory for failed and killed + tasks by launching special CLEANUP tasks for the same. + (Amareshwari Sriramadasu via ddas) + + HADOOP-5161. Accepted sockets do not get placed in + DataXceiverServer#childSockets. (hairong) + + HADOOP-5193. Correct calculation of edits modification time. (shv) + + HADOOP-4494. Allow libhdfs to append to files. + (Pete Wyckoff via dhruba) + + HADOOP-5166. Fix JobTracker restart to work when ACLs are configured + for the JobTracker. (Amar Kamat via yhemanth). + + HADOOP-5067. Fixes TaskInProgress.java to keep track of count of failed and + killed tasks correctly. (Amareshwari Sriramadasu via ddas) + + HADOOP-4760. HDFS streams should not throw exceptions when closed twice. + (enis) + +Release 0.19.0 - 2008-11-18 + + INCOMPATIBLE CHANGES + + HADOOP-3595. Remove deprecated methods for mapred.combine.once + functionality, which was necessary to providing backwards + compatible combiner semantics for 0.18. (cdouglas via omalley) + + HADOOP-3667. Remove the following deprecated methods from JobConf: + addInputPath(Path) + getInputPaths() + getMapOutputCompressionType() + getOutputPath() + getSystemDir() + setInputPath(Path) + setMapOutputCompressionType(CompressionType style) + setOutputPath(Path) + (Amareshwari Sriramadasu via omalley) + + HADOOP-3652. Remove deprecated class OutputFormatBase. + (Amareshwari Sriramadasu via cdouglas) + + HADOOP-2885. Break the hadoop.dfs package into separate packages under + hadoop.hdfs that reflect whether they are client, server, protocol, + etc. DistributedFileSystem and DFSClient have moved and are now + considered package private. (Sanjay Radia via omalley) + + HADOOP-2325. Require Java 6. (cutting) + + HADOOP-372. Add support for multiple input paths with a different + InputFormat and Mapper for each path. (Chris Smith via tomwhite) + + HADOOP-1700. Support appending to file in HDFS. (dhruba) + + HADOOP-3792. Make FsShell -test consistent with unix semantics, returning + zero for true and non-zero for false. (Ben Slusky via cdouglas) + + HADOOP-3664. Remove the deprecated method InputFormat.validateInput, + which is no longer needed. (tomwhite via omalley) + + HADOOP-3549. Give more meaningful errno's in libhdfs. In particular, + EACCES is returned for permission problems. (Ben Slusky via omalley) + + HADOOP-4036. ResourceStatus was added to TaskTrackerStatus by HADOOP-3759, + so increment the InterTrackerProtocol version. (Hemanth Yamijala via + omalley) + + HADOOP-3150. Moves task promotion to tasks. Defines a new interface for + committing output files. Moves job setup to jobclient, and moves jobcleanup + to a separate task. (Amareshwari Sriramadasu via ddas) + + HADOOP-3446. Keep map outputs in memory during the reduce. Remove + fs.inmemory.size.mb and replace with properties defining in memory map + output retention during the shuffle and reduce relative to maximum heap + usage. (cdouglas) + + HADOOP-3245. Adds the feature for supporting JobTracker restart. Running + jobs can be recovered from the history file. The history file format has + been modified to support recovery. The task attempt ID now has the + JobTracker start time to disinguish attempts of the same TIP across + restarts. (Amar Ramesh Kamat via ddas) + + HADOOP-4007. REMOVE DFSFileInfo - FileStatus is sufficient. + (Sanjay Radia via hairong) + + HADOOP-3722. Fixed Hadoop Streaming and Hadoop Pipes to use the Tool + interface and GenericOptionsParser. (Enis Soztutar via acmurthy) + + HADOOP-2816. Cluster summary at name node web reports the space + utilization as: + Configured Capacity: capacity of all the data directories - Reserved space + Present Capacity: Space available for dfs,i.e. remaining+used space + DFS Used%: DFS used space/Present Capacity + (Suresh Srinivas via hairong) + + HADOOP-3938. Disk space quotas for HDFS. This is similar to namespace + quotas in 0.18. (rangadi) + + HADOOP-4293. Make Configuration Writable and remove unreleased + WritableJobConf. Configuration.write is renamed to writeXml. (omalley) + + HADOOP-4281. Change dfsadmin to report available disk space in a format + consistent with the web interface as defined in HADOOP-2816. (Suresh + Srinivas via cdouglas) + + HADOOP-4430. Further change the cluster summary at name node web that was + changed in HADOOP-2816: + Non DFS Used - This indicates the disk space taken by non DFS file from + the Configured capacity + DFS Used % - DFS Used % of Configured Capacity + DFS Remaining % - Remaing % Configured Capacity available for DFS use + DFS command line report reflects the same change. Config parameter + dfs.datanode.du.pct is no longer used and is removed from the + hadoop-default.xml. (Suresh Srinivas via hairong) + + HADOOP-4116. Balancer should provide better resource management. (hairong) + + HADOOP-4599. BlocksMap and BlockInfo made package private. (shv) + + NEW FEATURES + + HADOOP-3341. Allow streaming jobs to specify the field separator for map + and reduce input and output. The new configuration values are: + stream.map.input.field.separator + stream.map.output.field.separator + stream.reduce.input.field.separator + stream.reduce.output.field.separator + All of them default to "\t". (Zheng Shao via omalley) + + HADOOP-3479. Defines the configuration file for the resource manager in + Hadoop. You can configure various parameters related to scheduling, such + as queues and queue properties here. The properties for a queue follow a + naming convention,such as, hadoop.rm.queue.queue-name.property-name. + (Hemanth Yamijala via ddas) + + HADOOP-3149. Adds a way in which map/reducetasks can create multiple + outputs. (Alejandro Abdelnur via ddas) + + HADOOP-3714. Add a new contrib, bash-tab-completion, which enables + bash tab completion for the bin/hadoop script. See the README file + in the contrib directory for the installation. (Chris Smith via enis) + + HADOOP-3730. Adds a new JobConf constructor that disables loading + default configurations. (Alejandro Abdelnur via ddas) + + HADOOP-3772. Add a new Hadoop Instrumentation api for the JobTracker and + the TaskTracker, refactor Hadoop Metrics as an implementation of the api. + (Ari Rabkin via acmurthy) + + HADOOP-2302. Provides a comparator for numerical sorting of key fields. + (ddas) + + HADOOP-153. Provides a way to skip bad records. (Sharad Agarwal via ddas) + + HADOOP-657. Free disk space should be modelled and used by the scheduler + to make scheduling decisions. (Ari Rabkin via omalley) + + HADOOP-3719. Initial checkin of Chukwa, which is a data collection and + analysis framework. (Jerome Boulon, Andy Konwinski, Ari Rabkin, + and Eric Yang) + + HADOOP-3873. Add -filelimit and -sizelimit options to distcp to cap the + number of files/bytes copied in a particular run to support incremental + updates and mirroring. (TszWo (Nicholas), SZE via cdouglas) + + HADOOP-3585. FailMon package for hardware failure monitoring and + analysis of anomalies. (Ioannis Koltsidas via dhruba) + + HADOOP-1480. Add counters to the C++ Pipes API. (acmurthy via omalley) + + HADOOP-3854. Add support for pluggable servlet filters in the HttpServers. + (Tsz Wo (Nicholas) Sze via omalley) + + HADOOP-3759. Provides ability to run memory intensive jobs without + affecting other running tasks on the nodes. (Hemanth Yamijala via ddas) + + HADOOP-3746. Add a fair share scheduler. (Matei Zaharia via omalley) + + HADOOP-3754. Add a thrift interface to access HDFS. (dhruba via omalley) + + HADOOP-3828. Provides a way to write skipped records to DFS. + (Sharad Agarwal via ddas) + + HADOOP-3948. Separate name-node edits and fsimage directories. + (Lohit Vijayarenu via shv) + + HADOOP-3939. Add an option to DistCp to delete files at the destination + not present at the source. (Tsz Wo (Nicholas) Sze via cdouglas) + + HADOOP-3601. Add a new contrib module for Hive, which is a sql-like + query processing tool that uses map/reduce. (Ashish Thusoo via omalley) + + HADOOP-3866. Added sort and multi-job updates in the JobTracker web ui. + (Craig Weisenfluh via omalley) + + HADOOP-3698. Add access control to control who is allowed to submit or + modify jobs in the JobTracker. (Hemanth Yamijala via omalley) + + HADOOP-1869. Support access times for HDFS files. (dhruba) + + HADOOP-3941. Extend FileSystem API to return file-checksums. + (szetszwo) + + HADOOP-3581. Prevents memory intensive user tasks from taking down + nodes. (Vinod K V via ddas) + + HADOOP-3970. Provides a way to recover counters written to JobHistory. + (Amar Kamat via ddas) + + HADOOP-3702. Adds ChainMapper and ChainReducer classes allow composing + chains of Maps and Reduces in a single Map/Reduce job, something like + MAP+ / REDUCE MAP*. (Alejandro Abdelnur via ddas) + + HADOOP-3445. Add capacity scheduler that provides guaranteed capacities to + queues as a percentage of the cluster. (Vivek Ratan via omalley) + + HADOOP-3992. Add a synthetic load generation facility to the test + directory. (hairong via szetszwo) + + HADOOP-3981. Implement a distributed file checksum algorithm in HDFS + and change DistCp to use file checksum for comparing src and dst files + (szetszwo) + + HADOOP-3829. Narrown down skipped records based on user acceptable value. + (Sharad Agarwal via ddas) + + HADOOP-3930. Add common interfaces for the pluggable schedulers and the + cli & gui clients. (Sreekanth Ramakrishnan via omalley) + + HADOOP-4176. Implement getFileChecksum(Path) in HftpFileSystem. (szetszwo) + + HADOOP-249. Reuse JVMs across Map-Reduce Tasks. + Configuration changes to hadoop-default.xml: + add mapred.job.reuse.jvm.num.tasks + (Devaraj Das via acmurthy) + + HADOOP-4070. Provide a mechanism in Hive for registering UDFs from the + query language. (tomwhite) + + HADOOP-2536. Implement a JDBC based database input and output formats to + allow Map-Reduce applications to work with databases. (Fredrik Hedberg and + Enis Soztutar via acmurthy) + + HADOOP-3019. A new library to support total order partitions. + (cdouglas via omalley) + + HADOOP-3924. Added a 'KILLED' job status. (Subramaniam Krishnan via + acmurthy) + + IMPROVEMENTS + + HADOOP-4205. hive: metastore and ql to use the refactored SerDe library. + (zshao) + + HADOOP-4106. libhdfs: add time, permission and user attribute support + (part 2). (Pete Wyckoff through zshao) + + HADOOP-4104. libhdfs: add time, permission and user attribute support. + (Pete Wyckoff through zshao) + + HADOOP-3908. libhdfs: better error message if llibhdfs.so doesn't exist. + (Pete Wyckoff through zshao) + + HADOOP-3732. Delay intialization of datanode block verification till + the verification thread is started. (rangadi) + + HADOOP-1627. Various small improvements to 'dfsadmin -report' output. + (rangadi) + + HADOOP-3577. Tools to inject blocks into name node and simulated + data nodes for testing. (Sanjay Radia via hairong) + + HADOOP-2664. Add a lzop compatible codec, so that files compressed by lzop + may be processed by map/reduce. (cdouglas via omalley) + + HADOOP-3655. Add additional ant properties to control junit. (Steve + Loughran via omalley) + + HADOOP-3543. Update the copyright year to 2008. (cdouglas via omalley) + + HADOOP-3587. Add a unit test for the contrib/data_join framework. + (cdouglas) + + HADOOP-3402. Add terasort example program (omalley) + + HADOOP-3660. Add replication factor for injecting blocks in simulated + datanodes. (Sanjay Radia via cdouglas) + + HADOOP-3684. Add a cloning function to the contrib/data_join framework + permitting users to define a more efficient method for cloning values from + the reduce than serialization/deserialization. (Runping Qi via cdouglas) + + HADOOP-3478. Improves the handling of map output fetching. Now the + randomization is by the hosts (and not the map outputs themselves). + (Jothi Padmanabhan via ddas) + + HADOOP-3617. Removed redundant checks of accounting space in MapTask and + makes the spill thread persistent so as to avoid creating a new one for + each spill. (Chris Douglas via acmurthy) + + HADOOP-3412. Factor the scheduler out of the JobTracker and make + it pluggable. (Tom White and Brice Arnould via omalley) + + HADOOP-3756. Minor. Remove unused dfs.client.buffer.dir from + hadoop-default.xml. (rangadi) + + HADOOP-3747. Adds counter suport for MultipleOutputs. + (Alejandro Abdelnur via ddas) + + HADOOP-3169. LeaseChecker daemon should not be started in DFSClient + constructor. (TszWo (Nicholas), SZE via hairong) + + HADOOP-3824. Move base functionality of StatusHttpServer to a core + package. (TszWo (Nicholas), SZE via cdouglas) + + HADOOP-3646. Add a bzip2 compatible codec, so bzip compressed data + may be processed by map/reduce. (Abdul Qadeer via cdouglas) + + HADOOP-3861. MapFile.Reader and Writer should implement Closeable. + (tomwhite via omalley) + + HADOOP-3791. Introduce generics into ReflectionUtils. (Chris Smith via + cdouglas) + + HADOOP-3694. Improve unit test performance by changing + MiniDFSCluster to listen only on 127.0.0.1. (cutting) + + HADOOP-3620. Namenode should synchronously resolve a datanode's network + location when the datanode registers. (hairong) + + HADOOP-3860. NNThroughputBenchmark is extended with rename and delete + benchmarks. (shv) + + HADOOP-3892. Include unix group name in JobConf. (Matei Zaharia via johan) + + HADOOP-3875. Change the time period between heartbeats to be relative to + the end of the heartbeat rpc, rather than the start. This causes better + behavior if the JobTracker is overloaded. (acmurthy via omalley) + + HADOOP-3853. Move multiple input format (HADOOP-372) extension to + library package. (tomwhite via johan) + + HADOOP-9. Use roulette scheduling for temporary space when the size + is not known. (Ari Rabkin via omalley) + + HADOOP-3202. Use recursive delete rather than FileUtil.fullyDelete. + (Amareshwari Sriramadasu via omalley) + + HADOOP-3368. Remove common-logging.properties from conf. (Steve Loughran + via omalley) + + HADOOP-3851. Fix spelling mistake in FSNamesystemMetrics. (Steve Loughran + via omalley) + + HADOOP-3780. Remove asynchronous resolution of network topology in the + JobTracker (Amar Kamat via omalley) + + HADOOP-3852. Add ShellCommandExecutor.toString method to make nicer + error messages. (Steve Loughran via omalley) + + HADOOP-3844. Include message of local exception in RPC client failures. + (Steve Loughran via omalley) + + HADOOP-3935. Split out inner classes from DataNode.java. (johan) + + HADOOP-3905. Create generic interfaces for edit log streams. (shv) + + HADOOP-3062. Add metrics to DataNode and TaskTracker to record network + traffic for HDFS reads/writes and MR shuffling. (cdouglas) + + HADOOP-3742. Remove HDFS from public java doc and add javadoc-dev for + generative javadoc for developers. (Sanjay Radia via omalley) + + HADOOP-3944. Improve documentation for public TupleWritable class in + join package. (Chris Douglas via enis) + + HADOOP-2330. Preallocate HDFS transaction log to improve performance. + (dhruba and hairong) + + HADOOP-3965. Convert DataBlockScanner into a package private class. (shv) + + HADOOP-3488. Prevent hadoop-daemon from rsync'ing log files (Stefan + Groshupf and Craig Macdonald via omalley) + + HADOOP-3342. Change the kill task actions to require http post instead of + get to prevent accidental crawls from triggering it. (enis via omalley) + + HADOOP-3937. Limit the job name in the job history filename to 50 + characters. (Matei Zaharia via omalley) + + HADOOP-3943. Remove unnecessary synchronization in + NetworkTopology.pseudoSortByDistance. (hairong via omalley) + + HADOOP-3498. File globbing alternation should be able to span path + components. (tomwhite) + + HADOOP-3361. Implement renames for NativeS3FileSystem. + (Albert Chern via tomwhite) + + HADOOP-3605. Make EC2 scripts show an error message if AWS_ACCOUNT_ID is + unset. (Al Hoang via tomwhite) + + HADOOP-4147. Remove unused class JobWithTaskContext from class + JobInProgress. (Amareshwari Sriramadasu via johan) + + HADOOP-4151. Add a byte-comparable interface that both Text and + BytesWritable implement. (cdouglas via omalley) + + HADOOP-4174. Move fs image/edit log methods from ClientProtocol to + NamenodeProtocol. (shv via szetszwo) + + HADOOP-4181. Include a .gitignore and saveVersion.sh change to support + developing under git. (omalley) + + HADOOP-4186. Factor LineReader out of LineRecordReader. (tomwhite via + omalley) + + HADOOP-4184. Break the module dependencies between core, hdfs, and + mapred. (tomwhite via omalley) + + HADOOP-4075. test-patch.sh now spits out ant commands that it runs. + (Ramya R via nigel) + + HADOOP-4117. Improve configurability of Hadoop EC2 instances. + (tomwhite) + + HADOOP-2411. Add support for larger CPU EC2 instance types. + (Chris K Wensel via tomwhite) + + HADOOP-4083. Changed the configuration attribute queue.name to + mapred.job.queue.name. (Hemanth Yamijala via acmurthy) + + HADOOP-4194. Added the JobConf and JobID to job-related methods in + JobTrackerInstrumentation for better metrics. (Mac Yang via acmurthy) + + HADOOP-3975. Change test-patch script to report working the dir + modifications preventing the suite from being run. (Ramya R via cdouglas) + + HADOOP-4124. Added a command-line switch to allow users to set job + priorities, also allow it to be manipulated via the web-ui. (Hemanth + Yamijala via acmurthy) + + HADOOP-2165. Augmented JobHistory to include the URIs to the tasks' + userlogs. (Vinod Kumar Vavilapalli via acmurthy) + + HADOOP-4062. Remove the synchronization on the output stream when a + connection is closed and also remove an undesirable exception when + a client is stoped while there is no pending RPC request. (hairong) + + HADOOP-4227. Remove the deprecated class org.apache.hadoop.fs.ShellCommand. + (szetszwo) + + HADOOP-4006. Clean up FSConstants and move some of the constants to + better places. (Sanjay Radia via rangadi) + + HADOOP-4279. Trace the seeds of random sequences in append unit tests to + make itermitant failures reproducible. (szetszwo via cdouglas) + + HADOOP-4209. Remove the change to the format of task attempt id by + incrementing the task attempt numbers by 1000 when the job restarts. + (Amar Kamat via omalley) + + HADOOP-4301. Adds forrest doc for the skip bad records feature. + (Sharad Agarwal via ddas) + + HADOOP-4354. Separate TestDatanodeDeath.testDatanodeDeath() into 4 tests. + (szetszwo) + + HADOOP-3790. Add more unit tests for testing HDFS file append. (szetszwo) + + HADOOP-4321. Include documentation for the capacity scheduler. (Hemanth + Yamijala via omalley) + + HADOOP-4424. Change menu layout for Hadoop documentation (Boris Shkolnik + via cdouglas). + + HADOOP-4438. Update forrest documentation to include missing FsShell + commands. (Suresh Srinivas via cdouglas) + + HADOOP-4105. Add forrest documentation for libhdfs. + (Pete Wyckoff via cutting) + + HADOOP-4510. Make getTaskOutputPath public. (Chris Wensel via omalley) + + OPTIMIZATIONS + + HADOOP-3556. Removed lock contention in MD5Hash by changing the + singleton MessageDigester by an instance per Thread using + ThreadLocal. (Iv?n de Prado via omalley) + + HADOOP-3328. When client is writing data to DFS, only the last + datanode in the pipeline needs to verify the checksum. Saves around + 30% CPU on intermediate datanodes. (rangadi) + + HADOOP-3863. Use a thread-local string encoder rather than a static one + that is protected by a lock. (acmurthy via omalley) + + HADOOP-3864. Prevent the JobTracker from locking up when a job is being + initialized. (acmurthy via omalley) + + HADOOP-3816. Faster directory listing in KFS. (Sriram Rao via omalley) + + HADOOP-2130. Pipes submit job should have both blocking and non-blocking + versions. (acmurthy via omalley) + + HADOOP-3769. Make the SampleMapper and SampleReducer from + GenericMRLoadGenerator public, so they can be used in other contexts. + (Lingyun Yang via omalley) + + HADOOP-3514. Inline the CRCs in intermediate files as opposed to reading + it from a different .crc file. (Jothi Padmanabhan via ddas) + + HADOOP-3638. Caches the iFile index files in memory to reduce seeks + (Jothi Padmanabhan via ddas) + + HADOOP-4225. FSEditLog.logOpenFile() should persist accessTime + rather than modificationTime. (shv) + + HADOOP-4380. Made several new classes (Child, JVMId, + JobTrackerInstrumentation, QueueManager, ResourceEstimator, + TaskTrackerInstrumentation, and TaskTrackerMetricsInst) in + org.apache.hadoop.mapred package private instead of public. (omalley) + + BUG FIXES + + HADOOP-3563. Refactor the distributed upgrade code so that it is + easier to identify datanode and namenode related code. (dhruba) + + HADOOP-3640. Fix the read method in the NativeS3InputStream. (tomwhite via + omalley) + + HADOOP-3711. Fixes the Streaming input parsing to properly find the + separator. (Amareshwari Sriramadasu via ddas) + + HADOOP-3725. Prevent TestMiniMRMapDebugScript from swallowing exceptions. + (Steve Loughran via cdouglas) + + HADOOP-3726. Throw exceptions from TestCLI setup and teardown instead of + swallowing them. (Steve Loughran via cdouglas) + + HADOOP-3721. Refactor CompositeRecordReader and related mapred.join classes + to make them clearer. (cdouglas) + + HADOOP-3720. Re-read the config file when dfsadmin -refreshNodes is invoked + so dfs.hosts and dfs.hosts.exclude are observed. (lohit vijayarenu via + cdouglas) + + HADOOP-3485. Allow writing to files over fuse. + (Pete Wyckoff via dhruba) + + HADOOP-3723. The flags to the libhdfs.create call can be treated as + a bitmask. (Pete Wyckoff via dhruba) + + HADOOP-3643. Filter out completed tasks when asking for running tasks in + the JobTracker web/ui. (Amar Kamat via omalley) + + HADOOP-3777. Ensure that Lzo compressors/decompressors correctly handle the + case where native libraries aren't available. (Chris Douglas via acmurthy) + + HADOOP-3728. Fix SleepJob so that it doesn't depend on temporary files, + this ensures we can now run more than one instance of SleepJob + simultaneously. (Chris Douglas via acmurthy) + + HADOOP-3795. Fix saving image files on Namenode with different checkpoint + stamps. (Lohit Vijayarenu via mahadev) + + HADOOP-3624. Improving createeditslog to create tree directory structure. + (Lohit Vijayarenu via mahadev) + + HADOOP-3778. DFSInputStream.seek() did not retry in case of some errors. + (Luo Ning via rangadi) + + HADOOP-3661. The handling of moving files deleted through fuse-dfs to + Trash made similar to the behaviour from dfs shell. + (Pete Wyckoff via dhruba) + + HADOOP-3819. Unset LANG and LC_CTYPE in saveVersion.sh to make it + compatible with non-English locales. (Rong-En Fan via cdouglas) + + HADOOP-3848. Cache calls to getSystemDir in the TaskTracker instead of + calling it for each task start. (acmurthy via omalley) + + HADOOP-3131. Fix reduce progress reporting for compressed intermediate + data. (Matei Zaharia via acmurthy) + + HADOOP-3796. fuse-dfs configuration is implemented as file system + mount options. (Pete Wyckoff via dhruba) + + HADOOP-3836. Fix TestMultipleOutputs to correctly clean up. (Alejandro + Abdelnur via acmurthy) + + HADOOP-3805. Improve fuse-dfs write performance. + (Pete Wyckoff via zshao) + + HADOOP-3846. Fix unit test CreateEditsLog to generate paths correctly. + (Lohit Vjayarenu via cdouglas) + + HADOOP-3904. Fix unit tests using the old dfs package name. + (TszWo (Nicholas), SZE via johan) + + HADOOP-3319. Fix some HOD error messages to go stderr instead of + stdout. (Vinod Kumar Vavilapalli via omalley) + + HADOOP-3907. Move INodeDirectoryWithQuota to its own .java file. + (Tsz Wo (Nicholas), SZE via hairong) + + HADOOP-3919. Fix attribute name in hadoop-default for + mapred.jobtracker.instrumentation. (Ari Rabkin via omalley) + + HADOOP-3903. Change the package name for the servlets to be hdfs instead of + dfs. (Tsz Wo (Nicholas) Sze via omalley) + + HADOOP-3773. Change Pipes to set the default map output key and value + types correctly. (Koji Noguchi via omalley) + + HADOOP-3952. Fix compilation error in TestDataJoin referencing dfs package. + (omalley) + + HADOOP-3951. Fix package name for FSNamesystem logs and modify other + hard-coded Logs to use the class name. (cdouglas) + + HADOOP-3889. Improve error reporting from HftpFileSystem, handling in + DistCp. (Tsz Wo (Nicholas), SZE via cdouglas) + + HADOOP-3946. Fix TestMapRed after hadoop-3664. (tomwhite via omalley) + + HADOOP-3949. Remove duplicate jars from Chukwa. (Jerome Boulon via omalley) + + HADOOP-3933. DataNode sometimes sends up to io.byte.per.checksum bytes + more than required to client. (Ning Li via rangadi) + + HADOOP-3962. Shell command "fs -count" should support paths with different + file systems. (Tsz Wo (Nicholas), SZE via mahadev) + + HADOOP-3957. Fix javac warnings in DistCp and TestCopyFiles. (Tsz Wo + (Nicholas), SZE via cdouglas) + + HADOOP-3958. Fix TestMapRed to check the success of test-job. (omalley via + acmurthy) + + HADOOP-3985. Fix TestHDFSServerPorts to use random ports. (Hairong Kuang + via omalley) + + HADOOP-3964. Fix javadoc warnings introduced by FailMon. (dhruba) + + HADOOP-3785. Fix FileSystem cache to be case-insensitive for scheme and + authority. (Bill de hOra via cdouglas) + + HADOOP-3506. Fix a rare NPE caused by error handling in S3. (Tom White via + cdouglas) + + HADOOP-3705. Fix mapred.join parser to accept InputFormats named with + underscore and static, inner classes. (cdouglas) + + HADOOP-4023. Fix javadoc warnings introduced when the HDFS javadoc was + made private. (omalley) + + HADOOP-4030. Remove lzop from the default list of codecs. (Arun Murthy via + cdouglas) + + HADOOP-3961. Fix task disk space requirement estimates for virtual + input jobs. Delays limiting task placement until after 10% of the maps + have finished. (Ari Rabkin via omalley) + + HADOOP-2168. Fix problem with C++ record reader's progress not being + reported to framework. (acmurthy via omalley) + + HADOOP-3966. Copy findbugs generated output files to PATCH_DIR while + running test-patch. (Ramya R via lohit) + + HADOOP-4037. Fix the eclipse plugin for versions of kfs and log4j. (nigel + via omalley) + + HADOOP-3950. Cause the Mini MR cluster to wait for task trackers to + register before continuing. (enis via omalley) + + HADOOP-3910. Remove unused ClusterTestDFSNamespaceLogging and + ClusterTestDFS. (Tsz Wo (Nicholas), SZE via cdouglas) + + HADOOP-3954. Disable record skipping by default. (Sharad Agarwal via + cdouglas) + + HADOOP-4050. Fix TestFairScheduler to use absolute paths for the work + directory. (Matei Zaharia via omalley) + + HADOOP-4069. Keep temporary test files from TestKosmosFileSystem under + test.build.data instead of /tmp. (lohit via omalley) + + HADOOP-4078. Create test files for TestKosmosFileSystem in separate + directory under test.build.data. (lohit) + + HADOOP-3968. Fix getFileBlockLocations calls to use FileStatus instead + of Path reflecting the new API. (Pete Wyckoff via lohit) + + HADOOP-3963. libhdfs does not exit on its own, instead it returns error + to the caller and behaves as a true library. (Pete Wyckoff via dhruba) + + HADOOP-4100. Removes the cleanupTask scheduling from the Scheduler + implementations and moves it to the JobTracker. + (Amareshwari Sriramadasu via ddas) + + HADOOP-4097. Make hive work well with speculative execution turned on. + (Joydeep Sen Sarma via dhruba) + + HADOOP-4113. Changes to libhdfs to not exit on its own, rather return + an error code to the caller. (Pete Wyckoff via dhruba) + + HADOOP-4054. Remove duplicate lease removal during edit log loading. + (hairong) + + HADOOP-4071. FSNameSystem.isReplicationInProgress should add an + underReplicated block to the neededReplication queue using method + "add" not "update". (hairong) + + HADOOP-4154. Fix type warnings in WritableUtils. (szetszwo via omalley) + + HADOOP-4133. Log files generated by Hive should reside in the + build directory. (Prasad Chakka via dhruba) + + HADOOP-4094. Hive now has hive-default.xml and hive-site.xml similar + to core hadoop. (Prasad Chakka via dhruba) + + HADOOP-4112. Handles cleanupTask in JobHistory + (Amareshwari Sriramadasu via ddas) + + HADOOP-3831. Very slow reading clients sometimes failed while reading. + (rangadi) + + HADOOP-4155. Use JobTracker's start time while initializing JobHistory's + JobTracker Unique String. (lohit) + + HADOOP-4099. Fix null pointer when using HFTP from an 0.18 server. + (dhruba via omalley) + + HADOOP-3570. Includes user specified libjar files in the client side + classpath path. (Sharad Agarwal via ddas) + + HADOOP-4129. Changed memory limits of TaskTracker and Tasks to be in + KiloBytes rather than bytes. (Vinod Kumar Vavilapalli via acmurthy) + + HADOOP-4139. Optimize Hive multi group-by. + (Namin Jain via dhruba) + + HADOOP-3911. Add a check to fsck options to make sure -files is not + the first option to resolve conflicts with GenericOptionsParser + (lohit) + + HADOOP-3623. Refactor LeaseManager. (szetszwo) + + HADOOP-4125. Handles Reduce cleanup tip on the web ui. + (Amareshwari Sriramadasu via ddas) + + HADOOP-4087. Hive Metastore API for php and python clients. + (Prasad Chakka via dhruba) + + HADOOP-4197. Update DATA_TRANSFER_VERSION for HADOOP-3981. (szetszwo) + + HADOOP-4138. Refactor the Hive SerDe library to better structure + the interfaces to the serializer and de-serializer. + (Zheng Shao via dhruba) + + HADOOP-4195. Close compressor before returning to codec pool. + (acmurthy via omalley) + + HADOOP-2403. Escapes some special characters before logging to + history files. (Amareshwari Sriramadasu via ddas) + + HADOOP-4200. Fix a bug in the test-patch.sh script. + (Ramya R via nigel) + + HADOOP-4084. Add explain plan capabilities to Hive Query Language. + (Ashish Thusoo via dhruba) + + HADOOP-4121. Preserve cause for exception if the initialization of + HistoryViewer for JobHistory fails. (Amareshwari Sri Ramadasu via + acmurthy) + + HADOOP-4213. Fixes NPE in TestLimitTasksPerJobTaskScheduler. + (Sreekanth Ramakrishnan via ddas) + + HADOOP-4077. Setting access and modification time for a file + requires write permissions on the file. (dhruba) + + HADOOP-3592. Fix a couple of possible file leaks in FileUtil + (Bill de hOra via rangadi) + + HADOOP-4120. Hive interactive shell records the time taken by a + query. (Raghotham Murthy via dhruba) + + HADOOP-4090. The hive scripts pick up hadoop from HADOOP_HOME + and then the path. (Raghotham Murthy via dhruba) + + HADOOP-4242. Remove extra ";" in FSDirectory that blocks compilation + in some IDE's. (szetszwo via omalley) + + HADOOP-4249. Fix eclipse path to include the hsqldb.jar. (szetszwo via + omalley) + + HADOOP-4247. Move InputSampler into org.apache.hadoop.mapred.lib, so that + examples.jar doesn't depend on tools.jar. (omalley) + + HADOOP-4269. Fix the deprecation of LineReader by extending the new class + into the old name and deprecating it. Also update the tests to test the + new class. (cdouglas via omalley) + + HADOOP-4280. Fix conversions between seconds in C and milliseconds in + Java for access times for files. (Pete Wyckoff via rangadi) + + HADOOP-4254. -setSpaceQuota command does not convert "TB" extenstion to + terabytes properly. Implementation now uses StringUtils for parsing this. + (Raghu Angadi) + + HADOOP-4259. Findbugs should run over tools.jar also. (cdouglas via + omalley) + + HADOOP-4275. Move public method isJobValidName from JobID to a private + method in JobTracker. (omalley) + + HADOOP-4173. fix failures in TestProcfsBasedProcessTree and + TestTaskTrackerMemoryManager tests. ProcfsBasedProcessTree and + memory management in TaskTracker are disabled on Windows. + (Vinod K V via rangadi) + + HADOOP-4189. Fixes the history blocksize & intertracker protocol version + issues introduced as part of HADOOP-3245. (Amar Kamat via ddas) + + HADOOP-4190. Fixes the backward compatibility issue with Job History. + introduced by HADOOP-3245 and HADOOP-2403. (Amar Kamat via ddas) + + HADOOP-4237. Fixes the TestStreamingBadRecords.testNarrowDown testcase. + (Sharad Agarwal via ddas) + + HADOOP-4274. Capacity scheduler accidently modifies the underlying + data structures when browing the job lists. (Hemanth Yamijala via omalley) + + HADOOP-4309. Fix eclipse-plugin compilation. (cdouglas) + + HADOOP-4232. Fix race condition in JVM reuse when multiple slots become + free. (ddas via acmurthy) + + HADOOP-4302. Fix a race condition in TestReduceFetch that can yield false + negatvies. (cdouglas) + + HADOOP-3942. Update distcp documentation to include features introduced in + HADOOP-3873, HADOOP-3939. (Tsz Wo (Nicholas), SZE via cdouglas) + + HADOOP-4319. fuse-dfs dfs_read function returns as many bytes as it is + told to read unlesss end-of-file is reached. (Pete Wyckoff via dhruba) + + HADOOP-4246. Ensure we have the correct lower bound on the number of + retries for fetching map-outputs; also fixed the case where the reducer + automatically kills on too many unique map-outputs could not be fetched + for small jobs. (Amareshwari Sri Ramadasu via acmurthy) + + HADOOP-4163. Report FSErrors from map output fetch threads instead of + merely logging them. (Sharad Agarwal via cdouglas) + + HADOOP-4261. Adds a setup task for jobs. This is required so that we + don't setup jobs that haven't been inited yet (since init could lead + to job failure). Only after the init has successfully happened do we + launch the setupJob task. (Amareshwari Sriramadasu via ddas) + + HADOOP-4256. Removes Completed and Failed Job tables from + jobqueue_details.jsp. (Sreekanth Ramakrishnan via ddas) + + HADOOP-4267. Occasional exceptions during shutting down HSQLDB is logged + but not rethrown. (enis) + + HADOOP-4018. The number of tasks for a single job cannot exceed a + pre-configured maximum value. (dhruba) + + HADOOP-4288. Fixes a NPE problem in CapacityScheduler. + (Amar Kamat via ddas) + + HADOOP-4014. Create hard links with 'fsutil hardlink' on Windows. (shv) + + HADOOP-4393. Merged org.apache.hadoop.fs.permission.AccessControlException + and org.apache.hadoop.security.AccessControlIOException into a single + class hadoop.security.AccessControlException. (omalley via acmurthy) + + HADOOP-4287. Fixes an issue to do with maintaining counts of running/pending + maps/reduces. (Sreekanth Ramakrishnan via ddas) + + HADOOP-4361. Makes sure that jobs killed from command line are killed + fast (i.e., there is a slot to run the cleanup task soon). + (Amareshwari Sriramadasu via ddas) + + HADOOP-4400. Add "hdfs://" to fs.default.name on quickstart.html. + (Jeff Hammerbacher via omalley) + + HADOOP-4378. Fix TestJobQueueInformation to use SleepJob rather than + WordCount via TestMiniMRWithDFS. (Sreekanth Ramakrishnan via acmurthy) + + HADOOP-4376. Fix formatting in hadoop-default.xml for + hadoop.http.filter.initializers. (Enis Soztutar via acmurthy) + + HADOOP-4410. Adds an extra arg to the API FileUtil.makeShellPath to + determine whether to canonicalize file paths or not. + (Amareshwari Sriramadasu via ddas) + + HADOOP-4236. Ensure un-initialized jobs are killed correctly on + user-demand. (Sharad Agarwal via acmurthy) + + HADOOP-4373. Fix calculation of Guaranteed Capacity for the + capacity-scheduler. (Hemanth Yamijala via acmurthy) + + HADOOP-4053. Schedulers must be notified when jobs complete. (Amar Kamat via omalley) + + HADOOP-4335. Fix FsShell -ls for filesystems without owners/groups. (David + Phillips via cdouglas) + + HADOOP-4426. TestCapacityScheduler broke due to the two commits HADOOP-4053 + and HADOOP-4373. This patch fixes that. (Hemanth Yamijala via ddas) + + HADOOP-4418. Updates documentation in forrest for Mapred, streaming and pipes. + (Amareshwari Sriramadasu via ddas) + + HADOOP-3155. Ensure that there is only one thread fetching + TaskCompletionEvents on TaskTracker re-init. (Dhruba Borthakur via + acmurthy) + + HADOOP-4425. Fix EditLogInputStream to overload the bulk read method. + (cdouglas) + + HADOOP-4427. Adds the new queue/job commands to the manual. + (Sreekanth Ramakrishnan via ddas) + + HADOOP-4278. Increase debug logging for unit test TestDatanodeDeath. + Fix the case when primary is dead. (dhruba via szetszwo) + + HADOOP-4423. Keep block length when the block recovery is triggered by + append. (szetszwo) + + HADOOP-4449. Fix dfsadmin usage. (Raghu Angadi via cdouglas) + + HADOOP-4455. Added TestSerDe so that unit tests can run successfully. + (Ashish Thusoo via dhruba) + + HADOOP-4457. Fixes an input split logging problem introduced by + HADOOP-3245. (Amareshwari Sriramadasu via ddas) + + HADOOP-4464. Separate out TestFileCreationClient from TestFileCreation. + (Tsz Wo (Nicholas), SZE via cdouglas) + + HADOOP-4404. saveFSImage() removes files from a storage directory that do + not correspond to its type. (shv) + + HADOOP-4149. Fix handling of updates to the job priority, by changing the + list of jobs to be keyed by the priority, submit time, and job tracker id. + (Amar Kamat via omalley) + + HADOOP-4296. Fix job client failures by not retiring a job as soon as it + is finished. (dhruba) + + HADOOP-4439. Remove configuration variables that aren't usable yet, in + particular mapred.tasktracker.tasks.maxmemory and mapred.task.max.memory. + (Hemanth Yamijala via omalley) + + HADOOP-4230. Fix for serde2 interface, limit operator, select * operator, + UDF trim functions and sampling. (Ashish Thusoo via dhruba) + + HADOOP-4358. No need to truncate access time in INode. Also fixes NPE + in CreateEditsLog. (Raghu Angadi) + + HADOOP-4387. TestHDFSFileSystemContract fails on windows nightly builds. + (Raghu Angadi) + + HADOOP-4466. Ensure that SequenceFileOutputFormat isn't tied to Writables + and can be used with other Serialization frameworks. (Chris Wensel via + acmurthy) + + HADOOP-4525. Fix ipc.server.ipcnodelay originally missed in in HADOOP-2232. + (cdouglas via Clint Morgan) + + HADOOP-4498. Ensure that JobHistory correctly escapes the job name so that + regex patterns work. (Chris Wensel via acmurthy) + + HADOOP-4446. Modify guaranteed capacity labels in capacity scheduler's UI + to reflect the information being displayed. (Sreekanth Ramakrishnan via + yhemanth) + + HADOOP-4282. Some user facing URLs are not filtered by user filters. + (szetszwo) + + HADOOP-4595. Fixes two race conditions - one to do with updating free slot count, + and another to do with starting the MapEventsFetcher thread. (ddas) + + HADOOP-4552. Fix a deadlock in RPC server. (Raghu Angadi) + + HADOOP-4471. Sort running jobs by priority in the capacity scheduler. + (Amar Kamat via yhemanth) + + HADOOP-4500. Fix MultiFileSplit to get the FileSystem from the relevant + path rather than the JobClient. (Joydeep Sen Sarma via cdouglas) + +Release 0.18.4 - Unreleased + + BUG FIXES + + HADOOP-5114. Remove timeout for accept() in DataNode. This makes accept() + fail in JDK on Windows and causes many tests to fail. (Raghu Angadi) + + HADOOP-5192. Block receiver should not remove a block that's created or + being written by other threads. (hairong) + + HADOOP-5134. FSNamesystem#commitBlockSynchronization adds under-construction + block locations to blocksMap. (Dhruba Borthakur via hairong) + + HADOOP-5412. Simulated DataNode should not write to a block that's being + written by another thread. (hairong) + + HADOOP-5465. Fix the problem of blocks remaining under-replicated by + providing synchronized modification to the counter xmitsInProgress in + DataNode. (hairong) + + HADOOP-5557. Fixes some minor problems in TestOverReplicatedBlocks. + (szetszwo) + + HADOOP-5644. Namenode is stuck in safe mode. (suresh Srinivas via hairong) + + HADOOP-6017. Lease Manager in NameNode does not handle certain characters + in filenames. This results in fatal errors in Secondary NameNode and while + restrating NameNode. (Tsz Wo (Nicholas), SZE via rangadi) + +Release 0.18.3 - 2009-01-27 + + IMPROVEMENTS + + HADOOP-4150. Include librecordio in hadoop releases. (Giridharan Kesavan + via acmurthy) + + HADOOP-4668. Improve documentation for setCombinerClass to clarify the + restrictions on combiners. (omalley) + + BUG FIXES + + HADOOP-4499. DFSClient should invoke checksumOk only once. (Raghu Angadi) + + HADOOP-4597. Calculate mis-replicated blocks when safe-mode is turned + off manually. (shv) + + HADOOP-3121. lsr should keep listing the remaining items but not + terminate if there is any IOException. (szetszwo) + + HADOOP-4610. Always calculate mis-replicated blocks when safe-mode is + turned off. (shv) + + HADOOP-3883. Limit namenode to assign at most one generation stamp for + a particular block within a short period. (szetszwo) + + HADOOP-4556. Block went missing. (hairong) + + HADOOP-4643. NameNode should exclude excessive replicas when counting + live replicas for a block. (hairong) + + HADOOP-4703. Should not wait for proxy forever in lease recovering. + (szetszwo) + + HADOOP-4647. NamenodeFsck should close the DFSClient it has created. + (szetszwo) + + HADOOP-4616. Fuse-dfs can handle bad values from FileSystem.read call. + (Pete Wyckoff via dhruba) + + HADOOP-4061. Throttle Datanode decommission monitoring in Namenode. + (szetszwo) + + HADOOP-4659. Root cause of connection failure is being lost to code that + uses it for delaying startup. (Steve Loughran and Hairong via hairong) + + HADOOP-4614. Lazily open segments when merging map spills to avoid using + too many file descriptors. (Yuri Pradkin via cdouglas) + + HADOOP-4257. The DFS client should pick only one datanode as the candidate + to initiate lease recovery. (Tsz Wo (Nicholas), SZE via dhruba) + + HADOOP-4713. Fix librecordio to handle records larger than 64k. (Christian + Kunz via cdouglas) + + HADOOP-4635. Fix a memory leak in fuse dfs. (pete wyckoff via mahadev) + + HADOOP-4714. Report status between merges and make the number of records + between progress reports configurable. (Jothi Padmanabhan via cdouglas) + + HADOOP-4726. Fix documentation typos "the the". (Edward J. Yoon via + szetszwo) + + HADOOP-4679. Datanode prints tons of log messages: waiting for threadgroup + to exit, active threads is XX. (hairong) + + HADOOP-4746. Job output directory should be normalized. (hairong) + + HADOOP-4717. Removal of default port# in NameNode.getUri() causes a + map/reduce job failed to prompt temporary output. (hairong) + + HADOOP-4778. Check for zero size block meta file when updating a block. + (szetszwo) + + HADOOP-4742. Replica gets deleted by mistake. (Wang Xu via hairong) + + HADOOP-4702. Failed block replication leaves an incomplete block in + receiver's tmp data directory. (hairong) + + HADOOP-4613. Fix block browsing on Web UI. (Johan Oskarsson via shv) + + HADOOP-4806. HDFS rename should not use src path as a regular expression. + (szetszwo) + + HADOOP-4795. Prevent lease monitor getting into an infinite loop when + leases and the namespace tree does not match. (szetszwo) + + HADOOP-4620. Fixes Streaming to handle well the cases of map/reduce with empty + input/output. (Ravi Gummadi via ddas) + + HADOOP-4857. Fixes TestUlimit to have exactly 1 map in the jobs spawned. + (Ravi Gummadi via ddas) + + HADOOP-4810. Data lost at cluster startup time. (hairong) + + HADOOP-4797. Improve how RPC server reads and writes large buffers. Avoids + soft-leak of direct buffers and excess copies in NIO layer. (Raghu Angadi) + + HADOOP-4840. TestNodeCount sometimes fails with NullPointerException. + (hairong) + + HADOOP-4904. Fix deadlock while leaving safe mode. (shv) + + HADOOP-1980. 'dfsadmin -safemode enter' should prevent the namenode from + leaving safemode automatically. (shv & Raghu Angadi) + + HADOOP-4951. Lease monitor should acquire the LeaseManager lock but not the + Monitor lock. (szetszwo) + + HADOOP-4935. processMisReplicatedBlocks() should not clear + excessReplicateMap. (shv) + + HADOOP-4961. Fix ConcurrentModificationException in lease recovery + of empty files. (shv) + + HADOOP-4971. A long (unexpected) delay at datanodes could make subsequent + block reports from many datanode at the same time. (Raghu Angadi) + + HADOOP-4910. NameNode should exclude replicas when choosing excessive + replicas to delete to avoid data lose. (hairong) + + HADOOP-4983. Fixes a problem in updating Counters in the status reporting. + (Amareshwari Sriramadasu via ddas) + +Release 0.18.2 - 2008-11-03 + + BUG FIXES + + HADOOP-3614. Fix a bug that Datanode may use an old GenerationStamp to get + meta file. (szetszwo) + + HADOOP-4314. Simulated datanodes should not include blocks that are still + being written in their block report. (Raghu Angadi) + + HADOOP-4228. dfs datanode metrics, bytes_read and bytes_written, overflow + due to incorrect type used. (hairong) + + HADOOP-4395. The FSEditLog loading is incorrect for the case OP_SET_OWNER. + (szetszwo) + + HADOOP-4351. FSNamesystem.getBlockLocationsInternal throws + ArrayIndexOutOfBoundsException. (hairong) + + HADOOP-4403. Make TestLeaseRecovery and TestFileCreation more robust. + (szetszwo) + + HADOOP-4292. Do not support append() for LocalFileSystem. (hairong) + + HADOOP-4399. Make fuse-dfs multi-thread access safe. + (Pete Wyckoff via dhruba) + + HADOOP-4369. Use setMetric(...) instead of incrMetric(...) for metrics + averages. (Brian Bockelman via szetszwo) + + HADOOP-4469. Rename and add the ant task jar file to the tar file. (nigel) + + HADOOP-3914. DFSClient sends Checksum Ok only once for a block. + (Christian Kunz via hairong) + + HADOOP-4467. SerializationFactory now uses the current context ClassLoader + allowing for user supplied Serialization instances. (Chris Wensel via + acmurthy) + + HADOOP-4517. Release FSDataset lock before joining ongoing create threads. + (szetszwo) + + HADOOP-4526. fsck failing with NullPointerException. (hairong) + + HADOOP-4483 Honor the max parameter in DatanodeDescriptor.getBlockArray(..) + (Ahad Rana and Hairong Kuang via szetszwo) + + HADOOP-4340. Correctly set the exit code from JobShell.main so that the + 'hadoop jar' command returns the right code to the user. (acmurthy) + + NEW FEATURES + + HADOOP-2421. Add jdiff output to documentation, listing all API + changes from the prior release. (cutting) + +Release 0.18.1 - 2008-09-17 + + IMPROVEMENTS + + HADOOP-3934. Upgrade log4j to 1.2.15. (omalley) + + BUG FIXES + + HADOOP-3995. In case of quota failure on HDFS, rename does not restore + source filename. (rangadi) + + HADOOP-3821. Prevent SequenceFile and IFile from duplicating codecs in + CodecPool when closed more than once. (Arun Murthy via cdouglas) + + HADOOP-4040. Remove coded default of the IPC idle connection timeout + from the TaskTracker, which was causing HDFS client connections to not be + collected. (ddas via omalley) + + HADOOP-4046. Made WritableComparable's constructor protected instead of + private to re-enable class derivation. (cdouglas via omalley) + + HADOOP-3940. Fix in-memory merge condition to wait when there are no map + outputs or when the final map outputs are being fetched without contention. + (cdouglas) + +Release 0.18.0 - 2008-08-19 + + INCOMPATIBLE CHANGES + + HADOOP-2703. The default options to fsck skips checking files + that are being written to. The output of fsck is incompatible + with previous release. (lohit vijayarenu via dhruba) + + HADOOP-2865. FsShell.ls() printout format changed to print file names + in the end of the line. (Edward J. Yoon via shv) + + HADOOP-3283. The Datanode has a RPC server. It currently supports + two RPCs: the first RPC retrives the metadata about a block and the + second RPC sets the generation stamp of an existing block. + (Tsz Wo (Nicholas), SZE via dhruba) + + HADOOP-2797. Code related to upgrading to 0.14 (Block CRCs) is + removed. As result, upgrade to 0.18 or later from 0.13 or earlier + is not supported. If upgrading from 0.13 or earlier is required, + please upgrade to an intermediate version (0.14-0.17) and then + to this version. (rangadi) + + HADOOP-544. This issue introduces new classes JobID, TaskID and + TaskAttemptID, which should be used instead of their string counterparts. + Functions in JobClient, TaskReport, RunningJob, jobcontrol.Job and + TaskCompletionEvent that use string arguments are deprecated in favor + of the corresponding ones that use ID objects. Applications can use + xxxID.toString() and xxxID.forName() methods to convert/restore objects + to/from strings. (Enis Soztutar via ddas) + + HADOOP-2188. RPC client sends a ping rather than throw timeouts. + RPC server does not throw away old RPCs. If clients and the server are on + different versions, they are not able to function well. In addition, + The property ipc.client.timeout is removed from the default hadoop + configuration. It also removes metrics RpcOpsDiscardedOPsNum. (hairong) + + HADOOP-2181. This issue adds logging for input splits in Jobtracker log + and jobHistory log. Also adds web UI for viewing input splits in job UI + and history UI. (Amareshwari Sriramadasu via ddas) + + HADOOP-3226. Run combiners multiple times over map outputs as they + are merged in both the map and the reduce tasks. (cdouglas via omalley) + + HADOOP-3329. DatanodeDescriptor objects should not be stored in the + fsimage. (dhruba) + + HADOOP-2656. The Block object has a generation stamp inside it. + Existing blocks get a generation stamp of 0. This is needed to support + appends. (dhruba) + + HADOOP-3390. Removed deprecated ClientProtocol.abandonFileInProgress(). + (Tsz Wo (Nicholas), SZE via rangadi) + + HADOOP-3405. Made some map/reduce internal classes non-public: + MapTaskStatus, ReduceTaskStatus, JobSubmissionProtocol, + CompletedJobStatusStore. (enis via omaley) + + HADOOP-3265. Removed depcrecated API getFileCacheHints(). + (Lohit Vijayarenu via rangadi) + + HADOOP-3310. The namenode instructs the primary datanode to do lease + recovery. The block gets a new generation stamp. + (Tsz Wo (Nicholas), SZE via dhruba) + + HADOOP-2909. Improve IPC idle connection management. Property + ipc.client.maxidletime is removed from the default configuration, + instead it is defined as twice of the ipc.client.connection.maxidletime. + A connection with outstanding requests won't be treated as idle. + (hairong) + + HADOOP-3459. Change in the output format of dfs -ls to more closely match + /bin/ls. New format is: perm repl owner group size date name + (Mukund Madhugiri via omally) + + HADOOP-3113. An fsync invoked on a HDFS file really really + persists data! The datanode moves blocks in the tmp directory to + the real block directory on a datanode-restart. (dhruba) + + HADOOP-3452. Change fsck to return non-zero status for a corrupt + FileSystem. (lohit vijayarenu via cdouglas) + + HADOOP-3193. Include the address of the client that found the corrupted + block in the log. Also include a CorruptedBlocks metric to track the size + of the corrupted block map. (cdouglas) + + HADOOP-3512. Separate out the tools into a tools jar. (omalley) + + HADOOP-3598. Ensure that temporary task-output directories are not created + if they are not necessary e.g. for Maps with no side-effect files. + (acmurthy) + + HADOOP-3665. Modify WritableComparator so that it only creates instances + of the keytype if the type does not define a WritableComparator. Calling + the superclass compare will throw a NullPointerException. Also define + a RawComparator for NullWritable and permit it to be written as a key + to SequenceFiles. (cdouglas) + + HADOOP-3673. Avoid deadlock caused by DataNode RPC receoverBlock(). + (Tsz Wo (Nicholas), SZE via rangadi) + + NEW FEATURES + + HADOOP-3074. Provides a UrlStreamHandler for DFS and other FS, + relying on FileSystem (taton) + + HADOOP-2585. Name-node imports namespace data from a recent checkpoint + accessible via a NFS mount. (shv) + + HADOOP-3061. Writable types for doubles and bytes. (Andrzej + Bialecki via omalley) + + HADOOP-2857. Allow libhdfs to set jvm options. (Craig Macdonald + via omalley) + + HADOOP-3317. Add default port for HDFS namenode. The port in + "hdfs:" URIs now defaults to 8020, so that one may simply use URIs + of the form "hdfs://example.com/dir/file". (cutting) + + HADOOP-2019. Adds support for .tar, .tgz and .tar.gz files in + DistributedCache (Amareshwari Sriramadasu via ddas) + + HADOOP-3058. Add FSNamesystem status metrics. + (Lohit Vjayarenu via rangadi) + + HADOOP-1915. Allow users to specify counters via strings instead + of enumerations. (tomwhite via omalley) + + HADOOP-2065. Delay invalidating corrupt replicas of block until its + is removed from under replicated state. If all replicas are found to + be corrupt, retain all copies and mark the block as corrupt. + (Lohit Vjayarenu via rangadi) + + HADOOP-3221. Adds org.apache.hadoop.mapred.lib.NLineInputFormat, which + splits files into splits each of N lines. N can be specified by + configuration property "mapred.line.input.format.linespermap", which + defaults to 1. (Amareshwari Sriramadasu via ddas) + + HADOOP-3336. Direct a subset of annotated FSNamesystem calls for audit + logging. (cdouglas) + + HADOOP-3400. A new API FileSystem.deleteOnExit() that facilitates + handling of temporary files in HDFS. (dhruba) + + HADOOP-4. Add fuse-dfs to contrib, permitting one to mount an + HDFS filesystem on systems that support FUSE, e.g., Linux. + (Pete Wyckoff via cutting) + + HADOOP-3246. Add FTPFileSystem. (Ankur Goel via cutting) + + HADOOP-3250. Extend FileSystem API to allow appending to files. + (Tsz Wo (Nicholas), SZE via cdouglas) + + HADOOP-3177. Implement Syncable interface for FileSystem. + (Tsz Wo (Nicholas), SZE via dhruba) + + HADOOP-1328. Implement user counters in streaming. (tomwhite via + omalley) + + HADOOP-3187. Quotas for namespace management. (Hairong Kuang via ddas) + + HADOOP-3307. Support for Archives in Hadoop. (Mahadev Konar via ddas) + + HADOOP-3460. Add SequenceFileAsBinaryOutputFormat to permit direct + writes of serialized data. (Koji Noguchi via cdouglas) + + HADOOP-3230. Add ability to get counter values from command + line. (tomwhite via omalley) + + HADOOP-930. Add support for native S3 files. (tomwhite via cutting) + + HADOOP-3502. Quota API needs documentation in Forrest. (hairong) + + HADOOP-3413. Allow SequenceFile.Reader to use serialization + framework. (tomwhite via omalley) + + HADOOP-3541. Import of the namespace from a checkpoint documented + in hadoop user guide. (shv) + + IMPROVEMENTS + + HADOOP-3677. Simplify generation stamp upgrade by making is a + local upgrade on datandodes. Deleted distributed upgrade. + (rangadi) + + HADOOP-2928. Remove deprecated FileSystem.getContentLength(). + (Lohit Vijayarenu via rangadi) + + HADOOP-3130. Make the connect timeout smaller for getFile. + (Amar Ramesh Kamat via ddas) + + HADOOP-3160. Remove deprecated exists() from ClientProtocol and + FSNamesystem (Lohit Vjayarenu via rangadi) + + HADOOP-2910. Throttle IPC Clients during bursts of requests or + server slowdown. Clients retry connection for up to 15 minutes + when socket connection times out. (hairong) + + HADOOP-3295. Allow TextOutputFormat to use configurable spearators. + (Zheng Shao via cdouglas). + + HADOOP-3308. Improve QuickSort by excluding values eq the pivot from the + partition. (cdouglas) + + HADOOP-2461. Trim property names in configuration. + (Tsz Wo (Nicholas), SZE via shv) + + HADOOP-2799. Deprecate o.a.h.io.Closable in favor of java.io.Closable. + (Tsz Wo (Nicholas), SZE via cdouglas) + + HADOOP-3345. Enhance the hudson-test-patch target to cleanup messages, + fix minor defects, and add eclipse plugin and python unit tests. (nigel) + + HADOOP-3144. Improve robustness of LineRecordReader by defining a maximum + line length (mapred.linerecordreader.maxlength), thereby avoiding reading + too far into the following split. (Zheng Shao via cdouglas) + + HADOOP-3334. Move lease handling from FSNamesystem into a seperate class. + (Tsz Wo (Nicholas), SZE via rangadi) + + HADOOP-3332. Reduces the amount of logging in Reducer's shuffle phase. + (Devaraj Das) + + HADOOP-3355. Enhances Configuration class to accept hex numbers for getInt + and getLong. (Amareshwari Sriramadasu via ddas) + + HADOOP-3350. Add an argument to distcp to permit the user to limit the + number of maps. (cdouglas) + + HADOOP-3013. Add corrupt block reporting to fsck. + (lohit vijayarenu via cdouglas) + + HADOOP-3377. Remove TaskRunner::replaceAll and replace with equivalent + String::replace. (Brice Arnould via cdouglas) + + HADOOP-3398. Minor improvement to a utility function in that participates + in backoff calculation. (cdouglas) + + HADOOP-3381. Clear referenced when directories are deleted so that + effect of memory leaks are not multiplied. (rangadi) + + HADOOP-2867. Adds the task's CWD to its LD_LIBRARY_PATH. + (Amareshwari Sriramadasu via ddas) + + HADOOP-3232. DU class runs the 'du' command in a seperate thread so + that it does not block user. DataNode misses heartbeats in large + nodes otherwise. (Johan Oskarsson via rangadi) + + HADOOP-3035. During block transfers between datanodes, the receiving + datanode, now can report corrupt replicas received from src node to + the namenode. (Lohit Vijayarenu via rangadi) + + HADOOP-3434. Retain the cause of the bind failure in Server::bind. + (Steve Loughran via cdouglas) + + HADOOP-3429. Increases the size of the buffers used for the communication + for Streaming jobs. (Amareshwari Sriramadasu via ddas) + + HADOOP-3486. Change default for initial block report to 0 seconds + and document it. (Sanjay Radia via omalley) + + HADOOP-3448. Improve the text in the assertion making sure the + layout versions are consistent in the data node. (Steve Loughran + via omalley) + + HADOOP-2095. Improve the Map-Reduce shuffle/merge by cutting down + buffer-copies; changed intermediate sort/merge to use the new IFile format + rather than SequenceFiles and compression of map-outputs is now + implemented by compressing the entire file rather than SequenceFile + compression. Shuffle also has been changed to use a simple byte-buffer + manager rather than the InMemoryFileSystem. + Configuration changes to hadoop-default.xml: + deprecated mapred.map.output.compression.type + (acmurthy) + + HADOOP-236. JobTacker now refuses connection from a task tracker with a + different version number. (Sharad Agarwal via ddas) + + HADOOP-3427. Improves the shuffle scheduler. It now waits for notifications + from shuffle threads when it has scheduled enough, before scheduling more. + (ddas) + + HADOOP-2393. Moves the handling of dir deletions in the tasktracker to + a separate thread. (Amareshwari Sriramadasu via ddas) + + HADOOP-3501. Deprecate InMemoryFileSystem. (cutting via omalley) + + HADOOP-3366. Stall the shuffle while in-memory merge is in progress. + (acmurthy) + + HADOOP-2916. Refactor src structure, but leave package structure alone. + (Raghu Angadi via mukund) + + HADOOP-3492. Add forrest documentation for user archives. + (Mahadev Konar via hairong) + + HADOOP-3467. Improve documentation for FileSystem::deleteOnExit. + (Tsz Wo (Nicholas), SZE via cdouglas) + + HADOOP-3379. Documents stream.non.zero.exit.status.is.failure for Streaming. + (Amareshwari Sriramadasu via ddas) + + HADOOP-3096. Improves documentation about the Task Execution Environment in + the Map-Reduce tutorial. (Amareshwari Sriramadasu via ddas) + + HADOOP-2984. Add forrest documentation for DistCp. (cdouglas) + + HADOOP-3406. Add forrest documentation for Profiling. + (Amareshwari Sriramadasu via ddas) + + HADOOP-2762. Add forrest documentation for controls of memory limits on + hadoop daemons and Map-Reduce tasks. (Amareshwari Sriramadasu via ddas) + + HADOOP-3535. Fix documentation and name of IOUtils.close to + reflect that it should only be used in cleanup contexts. (omalley) + + HADOOP-3593. Updates the mapred tutorial. (ddas) + + HADOOP-3547. Documents the way in which native libraries can be distributed + via the DistributedCache. (Amareshwari Sriramadasu via ddas) + + HADOOP-3606. Updates the Streaming doc. (Amareshwari Sriramadasu via ddas) + + HADOOP-3532. Add jdiff reports to the build scripts. (omalley) + + HADOOP-3100. Develop tests to test the DFS command line interface. (mukund) + + HADOOP-3688. Fix up HDFS docs. (Robert Chansler via hairong) + + OPTIMIZATIONS + + HADOOP-3274. The default constructor of BytesWritable creates empty + byte array. (Tsz Wo (Nicholas), SZE via shv) + + HADOOP-3272. Remove redundant copy of Block object in BlocksMap. + (Lohit Vjayarenu via shv) + + HADOOP-3164. Reduce DataNode CPU usage by using FileChannel.tranferTo(). + On Linux DataNode takes 5 times less CPU while serving data. Results may + vary on other platforms. (rangadi) + + HADOOP-3248. Optimization of saveFSImage. (Dhruba via shv) + + HADOOP-3297. Fetch more task completion events from the job + tracker and task tracker. (ddas via omalley) + + HADOOP-3364. Faster image and log edits loading. (shv) + + HADOOP-3369. Fast block processing during name-node startup. (shv) + + HADOOP-1702. Reduce buffer copies when data is written to DFS. + DataNodes take 30% less CPU while writing data. (rangadi) + + HADOOP-3095. Speed up split generation in the FileInputSplit, + especially for non-HDFS file systems. Deprecates + InputFormat.validateInput. (tomwhite via omalley) + + HADOOP-3552. Add forrest documentation for Hadoop commands. + (Sharad Agarwal via cdouglas) + + BUG FIXES + + HADOOP-2905. 'fsck -move' triggers NPE in NameNode. + (Lohit Vjayarenu via rangadi) + + Increment ClientProtocol.versionID missed by HADOOP-2585. (shv) + + HADOOP-3254. Restructure internal namenode methods that process + heartbeats to use well-defined BlockCommand object(s) instead of + using the base java Object. (Tsz Wo (Nicholas), SZE via dhruba) + + HADOOP-3176. Change lease record when a open-for-write-file + gets renamed. (dhruba) + + HADOOP-3269. Fix a case when namenode fails to restart + while processing a lease record. ((Tsz Wo (Nicholas), SZE via dhruba) + + HADOOP-3282. Port issues in TestCheckpoint resolved. (shv) + + HADOOP-3268. file:// URLs issue in TestUrlStreamHandler under Windows. + (taton) + + HADOOP-3127. Deleting files in trash should really remove them. + (Brice Arnould via omalley) + + HADOOP-3300. Fix locking of explicit locks in NetworkTopology. + (tomwhite via omalley) + + HADOOP-3270. Constant DatanodeCommands are stored in static final + immutable variables for better code clarity. + (Tsz Wo (Nicholas), SZE via dhruba) + + HADOOP-2793. Fix broken links for worst performing shuffle tasks in + the job history page. (Amareshwari Sriramadasu via ddas) + + HADOOP-3313. Avoid unnecessary calls to System.currentTimeMillis + in RPC::Invoker. (cdouglas) + + HADOOP-3318. Recognize "Darwin" as an alias for "Mac OS X" to + support Soylatte. (Sam Pullara via omalley) + + HADOOP-3301. Fix misleading error message when S3 URI hostname + contains an underscore. (tomwhite via omalley) + + HADOOP-3338. Fix Eclipse plugin to compile after HADOOP-544 was + committed. Updated all references to use the new JobID representation. + (taton via nigel) + + HADOOP-3337. Loading FSEditLog was broken by HADOOP-3283 since it + changed Writable serialization of DatanodeInfo. This patch handles it. + (Tsz Wo (Nicholas), SZE via rangadi) + + HADOOP-3101. Prevent JobClient from throwing an exception when printing + usage. (Edward J. Yoon via cdouglas) + + HADOOP-3119. Update javadoc for Text::getBytes to better describe its + behavior. (Tim Nelson via cdouglas) + + HADOOP-2294. Fix documentation in libhdfs to refer to the correct free + function. (Craig Macdonald via cdouglas) + + HADOOP-3335. Prevent the libhdfs build from deleting the wrong + files on make clean. (cutting via omalley) + + HADOOP-2930. Make {start,stop}-balancer.sh work even if hadoop-daemon.sh + is not in the PATH. (Spiros Papadimitriou via hairong) + + HADOOP-3085. Catch Exception in metrics util classes to ensure that + misconfigured metrics don't prevent others from updating. (cdouglas) + + HADOOP-3299. CompositeInputFormat should configure the sub-input + formats. (cdouglas via omalley) + + HADOOP-3309. Lower io.sort.mb and fs.inmemory.size.mb for MiniMRDFSSort + unit test so it passes on Windows. (lohit vijayarenu via cdouglas) + + HADOOP-3348. TestUrlStreamHandler should set URLStreamFactory after + DataNodes are initialized. (Lohit Vijayarenu via rangadi) + + HADOOP-3371. Ignore InstanceAlreadyExistsException from + MBeanUtil::registerMBean. (lohit vijayarenu via cdouglas) + + HADOOP-3349. A file rename was incorrectly changing the name inside a + lease record. (Tsz Wo (Nicholas), SZE via dhruba) + + HADOOP-3365. Removes an unnecessary copy of the key from SegmentDescriptor + to MergeQueue. (Devaraj Das) + + HADOOP-3388. Fix for TestDatanodeBlockScanner to handle blocks with + generation stamps in them. (dhruba) + + HADOOP-3203. Fixes TaskTracker::localizeJob to pass correct file sizes + for the jarfile and the jobfile. (Amareshwari Sriramadasu via ddas) + + HADOOP-3391. Fix a findbugs warning introduced by HADOOP-3248 (rangadi) + + HADOOP-3393. Fix datanode shutdown to call DataBlockScanner::shutdown and + close its log, even if the scanner thread is not running. (lohit vijayarenu + via cdouglas) + + HADOOP-3399. A debug message was logged at info level. (rangadi) + + HADOOP-3396. TestDatanodeBlockScanner occationally fails. + (Lohit Vijayarenu via rangadi) + + HADOOP-3339. Some of the failures on 3rd datanode in DFS write pipelie + are not detected properly. This could lead to hard failure of client's + write operation. (rangadi) + + HADOOP-3409. Namenode should save the root inode into fsimage. (hairong) + + HADOOP-3296. Fix task cache to work for more than two levels in the cache + hierarchy. This also adds a new counter to track cache hits at levels + greater than two. (Amar Kamat via cdouglas) + + HADOOP-3375. Lease paths were sometimes not removed from + LeaseManager.sortedLeasesByPath. (Tsz Wo (Nicholas), SZE via dhruba) + + HADOOP-3424. Values returned by getPartition should be checked to + make sure they are in the range 0 to #reduces - 1 (cdouglas via + omalley) + + HADOOP-3408. Change FSNamesystem to send its metrics as integers to + accommodate collectors that don't support long values. (lohit vijayarenu + via cdouglas) + + HADOOP-3403. Fixes a problem in the JobTracker to do with handling of lost + tasktrackers. (Arun Murthy via ddas) + + HADOOP-1318. Completed maps are not failed if the number of reducers are + zero. (Amareshwari Sriramadasu via ddas). + + HADOOP-3351. Fixes the history viewer tool to not do huge StringBuffer + allocations. (Amareshwari Sriramadasu via ddas) + + HADOOP-3419. Fixes TestFsck to wait for updates to happen before + checking results to make the test more reliable. (Lohit Vijaya + Renu via omalley) + + HADOOP-3259. Makes failure to read system properties due to a + security manager non-fatal. (Edward Yoon via omalley) + + HADOOP-3451. Update libhdfs to use FileSystem::getFileBlockLocations + instead of removed getFileCacheHints. (lohit vijayarenu via cdouglas) + + HADOOP-3401. Update FileBench to set the new + "mapred.work.output.dir" property to work post-3041. (cdouglas via omalley) + + HADOOP-2669. DFSClient locks pendingCreates appropriately. (dhruba) + + HADOOP-3410. Fix KFS implemenation to return correct file + modification time. (Sriram Rao via cutting) + + HADOOP-3340. Fix DFS metrics for BlocksReplicated, HeartbeatsNum, and + BlockReportsAverageTime. (lohit vijayarenu via cdouglas) + + HADOOP-3435. Remove the assuption in the scripts that bash is at + /bin/bash and fix the test patch to require bash instead of sh. + (Brice Arnould via omalley) + + HADOOP-3471. Fix spurious errors from TestIndexedSort and add additional + logging to let failures be reproducible. (cdouglas) + + HADOOP-3443. Avoid copying map output across partitions when renaming a + single spill. (omalley via cdouglas) + + HADOOP-3454. Fix Text::find to search only valid byte ranges. (Chad Whipkey + via cdouglas) + + HADOOP-3417. Removes the static configuration variable, + commandLineConfig from JobClient. Moves the cli parsing from + JobShell to GenericOptionsParser. Thus removes the class + org.apache.hadoop.mapred.JobShell. (Amareshwari Sriramadasu via + ddas) + + HADOOP-2132. Only RUNNING/PREP jobs can be killed. (Jothi Padmanabhan + via ddas) + + HADOOP-3476. Code cleanup in fuse-dfs. + (Peter Wyckoff via dhruba) + + HADOOP-2427. Ensure that the cwd of completed tasks is cleaned-up + correctly on task-completion. (Amareshwari Sri Ramadasu via acmurthy) + + HADOOP-2565. Remove DFSPath cache of FileStatus. + (Tsz Wo (Nicholas), SZE via hairong) + + HADOOP-3326. Cleanup the local-fs and in-memory merge in the ReduceTask by + spawing only one thread each for the on-disk and in-memory merge. + (Sharad Agarwal via acmurthy) + + HADOOP-3493. Fix TestStreamingFailure to use FileUtil.fullyDelete to + ensure correct cleanup. (Lohit Vijayarenu via acmurthy) + + HADOOP-3455. Fix NPE in ipc.Client in case of connection failure and + improve its synchronization. (hairong) + + HADOOP-3240. Fix a testcase to not create files in the current directory. + Instead the file is created in the test directory (Mahadev Konar via ddas) + + HADOOP-3496. Fix failure in TestHarFileSystem.testArchives due to change + in HADOOP-3095. (tomwhite) + + HADOOP-3135. Get the system directory from the JobTracker instead of from + the conf. (Subramaniam Krishnan via ddas) + + HADOOP-3503. Fix a race condition when client and namenode start + simultaneous recovery of the same block. (dhruba & Tsz Wo + (Nicholas), SZE) + + HADOOP-3440. Fixes DistributedCache to not create symlinks for paths which + don't have fragments even when createSymLink is true. + (Abhijit Bagri via ddas) + + HADOOP-3463. Hadoop-daemons script should cd to $HADOOP_HOME. (omalley) + + HADOOP-3489. Fix NPE in SafeModeMonitor. (Lohit Vijayarenu via shv) + + HADOOP-3509. Fix NPE in FSNamesystem.close. (Tsz Wo (Nicholas), SZE via + shv) + + HADOOP-3491. Name-node shutdown causes InterruptedException in + ResolutionMonitor. (Lohit Vijayarenu via shv) + + HADOOP-3511. Fixes namenode image to not set the root's quota to an + invalid value when the quota was not saved in the image. (hairong) + + HADOOP-3516. Ensure the JobClient in HadoopArchives is initialized + with a configuration. (Subramaniam Krishnan via omalley) + + HADOOP-3513. Improve NNThroughputBenchmark log messages. (shv) + + HADOOP-3519. Fix NPE in DFS FileSystem rename. (hairong via tomwhite) + + HADOOP-3528. Metrics FilesCreated and files_deleted metrics + do not match. (Lohit via Mahadev) + + HADOOP-3418. When a directory is deleted, any leases that point to files + in the subdirectory are removed. ((Tsz Wo (Nicholas), SZE via dhruba) + + HADOOP-3542. Diables the creation of _logs directory for the archives + directory. (Mahadev Konar via ddas) + + HADOOP-3544. Fixes a documentation issue for hadoop archives. + (Mahadev Konar via ddas) + + HADOOP-3517. Fixes a problem in the reducer due to which the last InMemory + merge may be missed. (Arun Murthy via ddas) + + HADOOP-3548. Fixes build.xml to copy all *.jar files to the dist. + (Owen O'Malley via ddas) + + HADOOP-3363. Fix unformatted storage detection in FSImage. (shv) + + HADOOP-3560. Fixes a problem to do with split creation in archives. + (Mahadev Konar via ddas) + + HADOOP-3545. Fixes a overflow problem in archives. + (Mahadev Konar via ddas) + + HADOOP-3561. Prevent the trash from deleting its parent directories. + (cdouglas) + + HADOOP-3575. Fix the clover ant target after package refactoring. + (Nigel Daley via cdouglas) + + HADOOP-3539. Fix the tool path in the bin/hadoop script under + cygwin. (Tsz Wo (Nicholas), Sze via omalley) + + HADOOP-3520. TestDFSUpgradeFromImage triggers a race condition in the + Upgrade Manager. Fixed. (dhruba) + + HADOOP-3586. Provide deprecated, backwards compatibile semantics for the + combiner to be run once and only once on each record. (cdouglas) + + HADOOP-3533. Add deprecated methods to provide API compatibility + between 0.18 and 0.17. Remove the deprecated methods in trunk. (omalley) + + HADOOP-3580. Fixes a problem to do with specifying a har as an input to + a job. (Mahadev Konar via ddas) + + HADOOP-3333. Don't assign a task to a tasktracker that it failed to + execute earlier (used to happen in the case of lost tasktrackers where + the tasktracker would reinitialize and bind to a different port). + (Jothi Padmanabhan and Arun Murthy via ddas) + + HADOOP-3534. Log IOExceptions that happen in closing the name + system when the NameNode shuts down. (Tsz Wo (Nicholas) Sze via omalley) + + HADOOP-3546. TaskTracker re-initialization gets stuck in cleaning up. + (Amareshwari Sriramadasu via ddas) + + HADOOP-3576. Fix NullPointerException when renaming a directory + to its subdirectory. (Tse Wo (Nicholas), SZE via hairong) + + HADOOP-3320. Fix NullPointerException in NetworkTopology.getDistance(). + (hairong) + + HADOOP-3569. KFS input stream read() now correctly reads 1 byte + instead of 4. (Sriram Rao via omalley) + + HADOOP-3599. Fix JobConf::setCombineOnceOnly to modify the instance rather + than a parameter. (Owen O'Malley via cdouglas) + + HADOOP-3590. Null pointer exception in JobTracker when the task tracker is + not yet resolved. (Amar Ramesh Kamat via ddas) + + HADOOP-3603. Fix MapOutputCollector to spill when io.sort.spill.percent is + 1.0 and to detect spills when emitted records write no data. (cdouglas) + + HADOOP-3615. Set DatanodeProtocol.versionID to the correct value. + (Tsz Wo (Nicholas), SZE via cdouglas) + + HADOOP-3559. Fix the libhdfs test script and config to work with the + current semantics. (lohit vijayarenu via cdouglas) + + HADOOP-3480. Need to update Eclipse template to reflect current trunk. + (Brice Arnould via tomwhite) + + HADOOP-3588. Fixed usability issues with archives. (mahadev) + + HADOOP-3635. Uncaught exception in DataBlockScanner. + (Tsz Wo (Nicholas), SZE via hairong) + + HADOOP-3639. Exception when closing DFSClient while multiple files are + open. (Benjamin Gufler via hairong) + + HADOOP-3572. SetQuotas usage interface has some minor bugs. (hairong) + + HADOOP-3649. Fix bug in removing blocks from the corrupted block map. + (Lohit Vijayarenu via shv) + + HADOOP-3604. Work around a JVM synchronization problem observed while + retrieving the address of direct buffers from compression code by obtaining + a lock during this call. (Arun C Murthy via cdouglas) + + HADOOP-3683. Fix dfs metrics to count file listings rather than files + listed. (lohit vijayarenu via cdouglas) + + HADOOP-3597. Fix SortValidator to use filesystems other than the default as + input. Validation job still runs on default fs. + (Jothi Padmanabhan via cdouglas) + + HADOOP-3693. Fix archives, distcp and native library documentation to + conform to style guidelines. (Amareshwari Sriramadasu via cdouglas) + + HADOOP-3653. Fix test-patch target to properly account for Eclipse + classpath jars. (Brice Arnould via nigel) + + HADOOP-3692. Fix documentation for Cluster setup and Quick start guides. + (Amareshwari Sriramadasu via ddas) + + HADOOP-3691. Fix streaming and tutorial docs. (Jothi Padmanabhan via ddas) + + HADOOP-3630. Fix NullPointerException in CompositeRecordReader from empty + sources (cdouglas) + + HADOOP-3706. Fix a ClassLoader issue in the mapred.join Parser that + prevents it from loading user-specified InputFormats. + (Jingkei Ly via cdouglas) + + HADOOP-3718. Fix KFSOutputStream::write(int) to output a byte instead of + an int, per the OutputStream contract. (Sriram Rao via cdouglas) + + HADOOP-3647. Add debug logs to help track down a very occassional, + hard-to-reproduce, bug in shuffle/merge on the reducer. (acmurthy) + + HADOOP-3716. Prevent listStatus in KosmosFileSystem from returning + null for valid, empty directories. (Sriram Rao via cdouglas) + + HADOOP-3752. Fix audit logging to record rename events. (cdouglas) + + HADOOP-3737. Fix CompressedWritable to call Deflater::end to release + compressor memory. (Grant Glouser via cdouglas) + + HADOOP-3670. Fixes JobTracker to clear out split bytes when no longer + required. (Amareshwari Sriramadasu via ddas) + + HADOOP-3755. Update gridmix to work with HOD 0.4 (Runping Qi via cdouglas) + + HADOOP-3743. Fix -libjars, -files, -archives options to work even if + user code does not implement tools. (Amareshwari Sriramadasu via mahadev) + + HADOOP-3774. Fix typos in shell output. (Tsz Wo (Nicholas), SZE via + cdouglas) + + HADOOP-3762. Fixed FileSystem cache to work with the default port. (cutting + via omalley) + + HADOOP-3798. Fix tests compilation. (Mukund Madhugiri via omalley) + + HADOOP-3794. Return modification time instead of zero for KosmosFileSystem. + (Sriram Rao via cdouglas) + + HADOOP-3806. Remove debug statement to stdout from QuickSort. (cdouglas) + + HADOOP-3776. Fix NPE at NameNode when datanode reports a block after it is + deleted at NameNode. (rangadi) + + HADOOP-3537. Disallow adding a datanode to a network topology when its + network location is not resolved. (hairong) + + HADOOP-3571. Fix bug in block removal used in lease recovery. (shv) + + HADOOP-3645. MetricsTimeVaryingRate returns wrong value for + metric_avg_time. (Lohit Vijayarenu via hairong) + + HADOOP-3521. Reverted the missing cast to float for sending Counters' values + to Hadoop metrics which was removed by HADOOP-544. (acmurthy) + + HADOOP-3820. Fixes two problems in the gridmix-env - a syntax error, and a + wrong definition of USE_REAL_DATASET by default. (Arun Murthy via ddas) + + HADOOP-3724. Fixes two problems related to storing and recovering lease + in the fsimage. (dhruba) + + HADOOP-3827. Fixed compression of empty map-outputs. (acmurthy) + + HADOOP-3865. Remove reference to FSNamesystem from metrics preventing + garbage collection. (Lohit Vijayarenu via cdouglas) + + HADOOP-3884. Fix so that Eclipse plugin builds against recent + Eclipse releases. (cutting) + + HADOOP-3837. Streaming jobs report progress status. (dhruba) + + HADOOP-3897. Fix a NPE in secondary namenode. (Lohit Vijayarenu via + cdouglas) + + HADOOP-3901. Fix bin/hadoop to correctly set classpath under cygwin. + (Tsz Wo (Nicholas) Sze via omalley) + + HADOOP-3947. Fix a problem in tasktracker reinitialization. + (Amareshwari Sriramadasu via ddas) + +Release 0.17.3 - Unreleased + + IMPROVEMENTS + + HADOOP-4164. Chinese translation of the documentation. (Xuebing Yan via + omalley) + + BUG FIXES + + HADOOP-4277. Checksum verification was mistakenly disabled for + LocalFileSystem. (Raghu Angadi) + + HADOOP-4271. Checksum input stream can sometimes return invalid + data to the user. (Ning Li via rangadi) + + HADOOP-4318. DistCp should use absolute paths for cleanup. (szetszwo) + + HADOOP-4326. ChecksumFileSystem does not override create(...) correctly. + (szetszwo) + +Release 0.17.2 - 2008-08-11 + + BUG FIXES + + HADOOP-3678. Avoid spurious exceptions logged at DataNode when clients + read from DFS. (rangadi) + + HADOOP-3707. NameNode keeps a count of number of blocks scheduled + to be written to a datanode and uses it to avoid allocating more + blocks than a datanode can hold. (rangadi) + + HADOOP-3760. Fix a bug with HDFS file close() mistakenly introduced + by HADOOP-3681. (Lohit Vijayarenu via rangadi) + + HADOOP-3681. DFSClient can get into an infinite loop while closing + a file if there are some errors. (Lohit Vijayarenu via rangadi) + + HADOOP-3002. Hold off block removal while in safe mode. (shv) + + HADOOP-3685. Unbalanced replication target. (hairong) + + HADOOP-3758. Shutdown datanode on version mismatch instead of retrying + continuously, preventing excessive logging at the namenode. + (lohit vijayarenu via cdouglas) + + HADOOP-3633. Correct exception handling in DataXceiveServer, and throttle + the number of xceiver threads in a data-node. (shv) + + HADOOP-3370. Ensure that the TaskTracker.runningJobs data-structure is + correctly cleaned-up on task completion. (Zheng Shao via acmurthy) + + HADOOP-3813. Fix task-output clean-up on HDFS to use the recursive + FileSystem.delete rather than the FileUtil.fullyDelete. (Amareshwari + Sri Ramadasu via acmurthy) + + HADOOP-3859. Allow the maximum number of xceivers in the data node to + be configurable. (Johan Oskarsson via omalley) + + HADOOP-3931. Fix corner case in the map-side sort that causes some values + to be counted as too large and cause pre-mature spills to disk. Some values + will also bypass the combiner incorrectly. (cdouglas via omalley) + +Release 0.17.1 - 2008-06-23 + + INCOMPATIBLE CHANGES + + HADOOP-3565. Fix the Java serialization, which is not enabled by + default, to clear the state of the serializer between objects. + (tomwhite via omalley) + + IMPROVEMENTS + + HADOOP-3522. Improve documentation on reduce pointing out that + input keys and values will be reused. (omalley) + + HADOOP-3487. Balancer uses thread pools for managing its threads; + therefore provides better resource management. (hairong) + + BUG FIXES + + HADOOP-2159 Namenode stuck in safemode. The counter blockSafe should + not be decremented for invalid blocks. (hairong) + + HADOOP-3472 MapFile.Reader getClosest() function returns incorrect results + when before is true (Todd Lipcon via Stack) + + HADOOP-3442. Limit recursion depth on the stack for QuickSort to prevent + StackOverflowErrors. To avoid O(n*n) cases, when partitioning depth exceeds + a multiple of log(n), change to HeapSort. (cdouglas) + + HADOOP-3477. Fix build to not package contrib/*/bin twice in + distributions. (Adam Heath via cutting) + + HADOOP-3475. Fix MapTask to correctly size the accounting allocation of + io.sort.mb. (cdouglas) + + HADOOP-3550. Fix the serialization data structures in MapTask where the + value lengths are incorrectly calculated. (cdouglas) + + HADOOP-3526. Fix contrib/data_join framework by cloning values retained + in the reduce. (Spyros Blanas via cdouglas) + + HADOOP-1979. Speed up fsck by adding a buffered stream. (Lohit + Vijaya Renu via omalley) + +Release 0.17.0 - 2008-05-18 + + INCOMPATIBLE CHANGES + + HADOOP-2786. Move hbase out of hadoop core + + HADOOP-2345. New HDFS transactions to support appending + to files. Disk layout version changed from -11 to -12. (dhruba) + + HADOOP-2192. Error messages from "dfs mv" command improved. + (Mahadev Konar via dhruba) + + HADOOP-1902. "dfs du" command without any arguments operates on the + current working directory. (Mahadev Konar via dhruba) + + HADOOP-2873. Fixed bad disk format introduced by HADOOP-2345. + Disk layout version changed from -12 to -13. See changelist 630992 + (dhruba) + + HADOOP-1985. This addresses rack-awareness for Map tasks and for + HDFS in a uniform way. (ddas) + + HADOOP-1986. Add support for a general serialization mechanism for + Map Reduce. (tomwhite) + + HADOOP-771. FileSystem.delete() takes an explicit parameter that + specifies whether a recursive delete is intended. + (Mahadev Konar via dhruba) + + HADOOP-2470. Remove getContentLength(String), open(String, long, long) + and isDir(String) from ClientProtocol. ClientProtocol version changed + from 26 to 27. (Tsz Wo (Nicholas), SZE via cdouglas) + + HADOOP-2822. Remove deprecated code for classes InputFormatBase and + PhasedFileSystem. (Amareshwari Sriramadasu via enis) + + HADOOP-2116. Changes the layout of the task execution directory. + (Amareshwari Sriramadasu via ddas) + + HADOOP-2828. The following deprecated methods in Configuration.java + have been removed + getObject(String name) + setObject(String name, Object value) + get(String name, Object defaultValue) + set(String name, Object value) + Iterator entries() + (Amareshwari Sriramadasu via ddas) + + HADOOP-2824. Removes one deprecated constructor from MiniMRCluster. + (Amareshwari Sriramadasu via ddas) + + HADOOP-2823. Removes deprecated methods getColumn(), getLine() from + org.apache.hadoop.record.compiler.generated.SimpleCharStream. + (Amareshwari Sriramadasu via ddas) + + HADOOP-3060. Removes one unused constructor argument from MiniMRCluster. + (Amareshwari Sriramadasu via ddas) + + HADOOP-2854. Remove deprecated o.a.h.ipc.Server::getUserInfo(). + (lohit vijayarenu via cdouglas) + + HADOOP-2563. Remove deprecated FileSystem::listPaths. + (lohit vijayarenu via cdouglas) + + HADOOP-2818. Remove deprecated methods in Counters. + (Amareshwari Sriramadasu via tomwhite) + + HADOOP-2831. Remove deprecated o.a.h.dfs.INode::getAbsoluteName() + (lohit vijayarenu via cdouglas) + + HADOOP-2839. Remove deprecated FileSystem::globPaths. + (lohit vijayarenu via cdouglas) + + HADOOP-2634. Deprecate ClientProtocol::exists. + (lohit vijayarenu via cdouglas) + + HADOOP-2410. Make EC2 cluster nodes more independent of each other. + Multiple concurrent EC2 clusters are now supported, and nodes may be + added to a cluster on the fly with new nodes starting in the same EC2 + availability zone as the cluster. Ganglia monitoring and large + instance sizes have also been added. (Chris K Wensel via tomwhite) + + HADOOP-2826. Deprecated FileSplit.getFile(), LineRecordReader.readLine(). + (Amareshwari Sriramadasu via ddas) + + HADOOP-3239. getFileInfo() returns null for non-existing files instead + of throwing FileNotFoundException. (Lohit Vijayarenu via shv) + + HADOOP-3266. Removed HOD changes from CHANGES.txt, as they are now inside + src/contrib/hod (Hemanth Yamijala via ddas) + + HADOOP-3280. Separate the configuration of the virtual memory size + (mapred.child.ulimit) from the jvm heap size, so that 64 bit + streaming applications are supported even when running with 32 bit + jvms. (acmurthy via omalley) + + NEW FEATURES + + HADOOP-1398. Add HBase in-memory block cache. (tomwhite) + + HADOOP-2178. Job History on DFS. (Amareshwari Sri Ramadasu via ddas) + + HADOOP-2063. A new parameter to dfs -get command to fetch a file + even if it is corrupted. (Tsz Wo (Nicholas), SZE via dhruba) + + HADOOP-2219. A new command "df -count" that counts the number of + files and directories. (Tsz Wo (Nicholas), SZE via dhruba) + + HADOOP-2906. Add an OutputFormat capable of using keys, values, and + config params to map records to different output files. + (Runping Qi via cdouglas) + + HADOOP-2346. Utilities to support timeout while writing to sockets. + DFSClient and DataNode sockets have 10min write timeout. (rangadi) + + HADOOP-2951. Add a contrib module that provides a utility to + build or update Lucene indexes using Map/Reduce. (Ning Li via cutting) + + HADOOP-1622. Allow multiple jar files for map reduce. + (Mahadev Konar via dhruba) + + HADOOP-2055. Allows users to set PathFilter on the FileInputFormat. + (Alejandro Abdelnur via ddas) + + HADOOP-2551. More environment variables like HADOOP_NAMENODE_OPTS + for better control of HADOOP_OPTS for each component. (rangadi) + + HADOOP-3001. Add job counters that measure the number of bytes + read and written to HDFS, S3, KFS, and local file systems. (omalley) + + HADOOP-3048. A new Interface and a default implementation to convert + and restore serializations of objects to/from strings. (enis) + + IMPROVEMENTS + + HADOOP-2655. Copy on write for data and metadata files in the + presence of snapshots. Needed for supporting appends to HDFS + files. (dhruba) + + HADOOP-1967. When a Path specifies the same scheme as the default + FileSystem but no authority, the default FileSystem's authority is + used. Also add warnings for old-format FileSystem names, accessor + methods for fs.default.name, and check for null authority in HDFS. + (cutting) + + HADOOP-2895. Let the profiling string be configurable. + (Martin Traverso via cdouglas) + + HADOOP-910. Enables Reduces to do merges for the on-disk map output files + in parallel with their copying. (Amar Kamat via ddas) + + HADOOP-730. Use rename rather than copy for local renames. (cdouglas) + + HADOOP-2810. Updated the Hadoop Core logo. (nigel) + + HADOOP-2057. Streaming should optionally treat a non-zero exit status + of a child process as a failed task. (Rick Cox via tomwhite) + + HADOOP-2765. Enables specifying ulimits for streaming/pipes tasks (ddas) + + HADOOP-2888. Make gridmix scripts more readily configurable and amenable + to automated execution. (Mukund Madhugiri via cdouglas) + + HADOOP-2908. A document that describes the DFS Shell command. + (Mahadev Konar via dhruba) + + HADOOP-2981. Update README.txt to reflect the upcoming use of + cryptography. (omalley) + + HADOOP-2804. Add support to publish CHANGES.txt as HTML when running + the Ant 'docs' target. (nigel) + + HADOOP-2559. Change DFS block placement to allocate the first replica + locally, the second off-rack, and the third intra-rack from the + second. (lohit vijayarenu via cdouglas) + + HADOOP-2939. Make the automated patch testing process an executable + Ant target, test-patch. (nigel) + + HADOOP-2239. Add HsftpFileSystem to permit transferring files over ssl. + (cdouglas) + + HADOOP-2886. Track individual RPC metrics. + (girish vaitheeswaran via dhruba) + + HADOOP-2373. Improvement in safe-mode reporting. (shv) + + HADOOP-3091. Modify FsShell command -put to accept multiple sources. + (Lohit Vijaya Renu via cdouglas) + + HADOOP-3092. Show counter values from job -status command. + (Tom White via ddas) + + HADOOP-1228. Ant task to generate Eclipse project files. (tomwhite) + + HADOOP-3093. Adds Configuration.getStrings(name, default-value) and + the corresponding setStrings. (Amareshwari Sriramadasu via ddas) + + HADOOP-3106. Adds documentation in forrest for debugging. + (Amareshwari Sriramadasu via ddas) + + HADOOP-3099. Add an option to distcp to preserve user, group, and + permission information. (Tsz Wo (Nicholas), SZE via cdouglas) + + HADOOP-2841. Unwrap AccessControlException and FileNotFoundException + from RemoteException for DFSClient. (shv) + + HADOOP-3152. Make index interval configuable when using + MapFileOutputFormat for map-reduce job. (Rong-En Fan via cutting) + + HADOOP-3143. Decrease number of slaves from 4 to 3 in TestMiniMRDFSSort, + as Hudson generates false negatives under the current load. + (Nigel Daley via cdouglas) + + HADOOP-3174. Illustrative example for MultipleFileInputFormat. (Enis + Soztutar via acmurthy) + + HADOOP-2993. Clarify the usage of JAVA_HOME in the Quick Start guide. + (acmurthy via nigel) + + HADOOP-3124. Make DataNode socket write timeout configurable. (rangadi) + + OPTIMIZATIONS + + HADOOP-2790. Fixed inefficient method hasSpeculativeTask by removing + repetitive calls to get the current time and late checking to see if + we want speculation on at all. (omalley) + + HADOOP-2758. Reduce buffer copies in DataNode when data is read from + HDFS, without negatively affecting read throughput. (rangadi) + + HADOOP-2399. Input key and value to combiner and reducer is reused. + (Owen O'Malley via ddas). + + HADOOP-2423. Code optimization in FSNamesystem.mkdirs. + (Tsz Wo (Nicholas), SZE via dhruba) + + HADOOP-2606. ReplicationMonitor selects data-nodes to replicate directly + from needed replication blocks instead of looking up for the blocks for + each live data-node. (shv) + + HADOOP-2148. Eliminate redundant data-node blockMap lookups. (shv) + + HADOOP-2027. Return the number of bytes in each block in a file + via a single rpc to the namenode to speed up job planning. + (Lohit Vijaya Renu via omalley) + + HADOOP-2902. Replace uses of "fs.default.name" with calls to the + accessor methods added in HADOOP-1967. (cutting) + + HADOOP-2119. Optimize scheduling of jobs with large numbers of + tasks by replacing static arrays with lists of runnable tasks. + (Amar Kamat via omalley) + + HADOOP-2919. Reduce the number of memory copies done during the + map output sorting. Also adds two config variables: + io.sort.spill.percent - the percentages of io.sort.mb that should + cause a spill (default 80%) + io.sort.record.percent - the percent of io.sort.mb that should + hold key/value indexes (default 5%) + (cdouglas via omalley) + + HADOOP-3140. Doesn't add a task in the commit queue if the task hadn't + generated any output. (Amar Kamat via ddas) + + HADOOP-3168. Reduce the amount of logging in streaming to an + exponentially increasing number of records (up to 10,000 + records/log). (Zheng Shao via omalley) + + BUG FIXES + + HADOOP-2195. '-mkdir' behaviour is now closer to Linux shell in case of + errors. (Mahadev Konar via rangadi) + + HADOOP-2190. bring behaviour '-ls' and '-du' closer to Linux shell + commands in case of errors. (Mahadev Konar via rangadi) + + HADOOP-2193. 'fs -rm' and 'fs -rmr' show error message when the target + file does not exist. (Mahadev Konar via rangadi) + + HADOOP-2738 Text is not subclassable because set(Text) and compareTo(Object) + access the other instance's private members directly. (jimk) + + HADOOP-2779. Remove the references to HBase in the build.xml. (omalley) + + HADOOP-2194. dfs cat on a non-existent file throws FileNotFoundException. + (Mahadev Konar via dhruba) + + HADOOP-2767. Fix for NetworkTopology erroneously skipping the last leaf + node on a rack. (Hairong Kuang and Mark Butler via dhruba) + + HADOOP-1593. FsShell works with paths in non-default FileSystem. + (Mahadev Konar via dhruba) + + HADOOP-2191. du and dus command on non-existent directory gives + appropriate error message. (Mahadev Konar via dhruba) + + HADOOP-2832. Remove tabs from code of DFSClient for better + indentation. (dhruba) + + HADOOP-2844. distcp closes file handles for sequence files. + (Tsz Wo (Nicholas), SZE via dhruba) + + HADOOP-2727. Fix links in Web UI of the hadoop daemons and some docs + (Amareshwari Sri Ramadasu via ddas) + + HADOOP-2871. Fixes a problem to do with file: URI in the JobHistory init. + (Amareshwari Sri Ramadasu via ddas) + + HADOOP-2800. Deprecate SetFile.Writer constructor not the whole class. + (Johan Oskarsson via tomwhite) + + HADOOP-2891. DFSClient.close() closes all open files. (dhruba) + + HADOOP-2845. Fix dfsadmin disk utilization report on Solaris. + (Martin Traverso via tomwhite) + + HADOOP-2912. MiniDFSCluster restart should wait for namenode to exit + safemode. This was causing TestFsck to fail. (Mahadev Konar via dhruba) + + HADOOP-2820. The following classes in streaming are removed : + StreamLineRecordReader StreamOutputFormat StreamSequenceRecordReader. + (Amareshwari Sri Ramadasu via ddas) + + HADOOP-2819. The following methods in JobConf are removed: + getInputKeyClass() setInputKeyClass getInputValueClass() + setInputValueClass(Class theClass) setSpeculativeExecution + getSpeculativeExecution() (Amareshwari Sri Ramadasu via ddas) + + HADOOP-2817. Removes deprecated mapred.tasktracker.tasks.maximum and + ClusterStatus.getMaxTasks(). (Amareshwari Sri Ramadasu via ddas) + + HADOOP-2821. Removes deprecated ShellUtil and ToolBase classes from + the util package. (Amareshwari Sri Ramadasu via ddas) + + HADOOP-2934. The namenode was encountreing a NPE while loading + leases from the fsimage. Fixed. (dhruba) + + HADOOP-2938. Some fs commands did not glob paths. + (Tsz Wo (Nicholas), SZE via rangadi) + + HADOOP-2943. Compression of intermediate map output causes failures + in the merge. (cdouglas) + + HADOOP-2870. DataNode and NameNode closes all connections while + shutting down. (Hairong Kuang via dhruba) + + HADOOP-2973. Fix TestLocalDFS for Windows platform. + (Tsz Wo (Nicholas), SZE via dhruba) + + HADOOP-2971. select multiple times if it returns early in + SocketIOWithTimeout. (rangadi) + + HADOOP-2955. Fix TestCrcCorruption test failures caused by HADOOP-2758 + (rangadi) + + HADOOP-2657. A flush call on the DFSOutputStream flushes the last + partial CRC chunk too. (dhruba) + + HADOOP-2974. IPC unit tests used "0.0.0.0" to connect to server, which + is not always supported. (rangadi) + + HADOOP-2996. Fixes uses of StringBuffer in StreamUtils class. + (Dave Brosius via ddas) + + HADOOP-2995. Fixes StreamBaseRecordReader's getProgress to return a + floating point number. (Dave Brosius via ddas) + + HADOOP-2972. Fix for a NPE in FSDataset.invalidate. + (Mahadev Konar via dhruba) + + HADOOP-2994. Code cleanup for DFSClient: remove redundant + conversions from string to string. (Dave Brosius via dhruba) + + HADOOP-3009. TestFileCreation sometimes fails because restarting + minidfscluster sometimes creates datanodes with ports that are + different from their original instance. (dhruba) + + HADOOP-2992. Distributed Upgrade framework works correctly with + more than one upgrade object. (Konstantin Shvachko via dhruba) + + HADOOP-2679. Fix a typo in libhdfs. (Jason via dhruba) + + HADOOP-2976. When a lease expires, the Namenode ensures that + blocks of the file are adequately replicated. (dhruba) + + HADOOP-2901. Fixes the creation of info servers in the JobClient + and JobTracker. Removes the creation from JobClient and removes + additional info server from the JobTracker. Also adds the command + line utility to view the history files (HADOOP-2896), and fixes + bugs in JSPs to do with analysis - HADOOP-2742, HADOOP-2792. + (Amareshwari Sri Ramadasu via ddas) + + HADOOP-2890. If different datanodes report the same block but + with different sizes to the namenode, the namenode picks the + replica(s) with the largest size as the only valid replica(s). (dhruba) + + HADOOP-2825. Deprecated MapOutputLocation.getFile() is removed. + (Amareshwari Sri Ramadasu via ddas) + + HADOOP-2806. Fixes a streaming document. + (Amareshwari Sriramadasu via ddas) + + HADOOP-3008. SocketIOWithTimeout throws InterruptedIOException if the + thread is interrupted while it is waiting. (rangadi) + + HADOOP-3006. Fix wrong packet size reported by DataNode when a block + is being replicated. (rangadi) + + HADOOP-3029. Datanode prints log message "firstbadlink" only if + it detects a bad connection to another datanode in the pipeline. (dhruba) + + HADOOP-3030. Release reserved space for file in InMemoryFileSystem if + checksum reservation fails. (Devaraj Das via cdouglas) + + HADOOP-3036. Fix findbugs warnings in UpgradeUtilities. (Konstantin + Shvachko via cdouglas) + + HADOOP-3025. ChecksumFileSystem supports the delete method with + the recursive flag. (Mahadev Konar via dhruba) + + HADOOP-3012. dfs -mv file to user home directory throws exception if + the user home directory does not exist. (Mahadev Konar via dhruba) + + HADOOP-3066. Should not require superuser privilege to query if hdfs is in + safe mode (jimk) + + HADOOP-3040. If the input line starts with the separator char, the key + is set as empty. (Amareshwari Sriramadasu via ddas) + + HADOOP-3080. Removes flush calls from JobHistory. + (Amareshwari Sriramadasu via ddas) + + HADOOP-3086. Adds the testcase missed during commit of hadoop-3040. + (Amareshwari Sriramadasu via ddas) + + HADOOP-3046. Fix the raw comparators for Text and BytesWritables + to use the provided length rather than recompute it. (omalley) + + HADOOP-3094. Fix BytesWritable.toString to avoid extending the sign bit + (Owen O'Malley via cdouglas) + + HADOOP-3067. DFSInputStream's position read does not close the sockets. + (rangadi) + + HADOOP-3073. close() on SocketInputStream or SocketOutputStream should + close the underlying channel. (rangadi) + + HADOOP-3087. Fixes a problem to do with refreshing of loadHistory.jsp. + (Amareshwari Sriramadasu via ddas) + + HADOOP-3065. Better logging message if the rack location of a datanode + cannot be determined. (Devaraj Das via dhruba) + + HADOOP-3064. Commas in a file path should not be treated as delimiters. + (Hairong Kuang via shv) + + HADOOP-2997. Adds test for non-writable serialier. Also fixes a problem + introduced by HADOOP-2399. (Tom White via ddas) + + HADOOP-3114. Fix TestDFSShell on Windows. (Lohit Vijaya Renu via cdouglas) + + HADOOP-3118. Fix Namenode NPE while loading fsimage after a cluster + upgrade from older disk format. (dhruba) + + HADOOP-3161. Fix FIleUtil.HardLink.getLinkCount on Mac OS. (nigel + via omalley) + + HADOOP-2927. Fix TestDU to acurately calculate the expected file size. + (shv via nigel) + + HADOOP-3123. Fix the native library build scripts to work on Solaris. + (tomwhite via omalley) + + HADOOP-3089. Streaming should accept stderr from task before + first key arrives. (Rick Cox via tomwhite) + + HADOOP-3146. A DFSOutputStream.flush method is renamed as + DFSOutputStream.fsync. (dhruba) + + HADOOP-3165. -put/-copyFromLocal did not treat input file "-" as stdin. + (Lohit Vijayarenu via rangadi) + + HADOOP-3041. Deprecate JobConf.setOutputPath and JobConf.getOutputPath. + Deprecate OutputFormatBase. Add FileOutputFormat. Existing output formats + extending OutputFormatBase, now extend FileOutputFormat. Add the following + APIs in FileOutputFormat: setOutputPath, getOutputPath, getWorkOutputPath. + (Amareshwari Sriramadasu via nigel) + + HADOOP-3083. The fsimage does not store leases. This would have to be + reworked in the next release to support appends. (dhruba) + + HADOOP-3166. Fix an ArrayIndexOutOfBoundsException in the spill thread + and make exception handling more promiscuous to catch this condition. + (cdouglas) + + HADOOP-3050. DataNode sends one and only one block report after + it registers with the namenode. (Hairong Kuang) + + HADOOP-3044. NNBench sets the right configuration for the mapper. + (Hairong Kuang) + + HADOOP-3178. Fix GridMix scripts for small and medium jobs + to handle input paths differently. (Mukund Madhugiri via nigel) + + HADOOP-1911. Fix an infinite loop in DFSClient when all replicas of a + block are bad (cdouglas) + + HADOOP-3157. Fix path handling in DistributedCache and TestMiniMRLocalFS. + (Doug Cutting via rangadi) + + HADOOP-3018. Fix the eclipse plug-in contrib wrt removed deprecated + methods (taton) + + HADOOP-3183. Fix TestJobShell to use 'ls' instead of java.io.File::exists + since cygwin symlinks are unsupported. + (Mahadev konar via cdouglas) + + HADOOP-3175. Fix FsShell.CommandFormat to handle "-" in arguments. + (Edward J. Yoon via rangadi) + + HADOOP-3220. Safemode message corrected. (shv) + + HADOOP-3208. Fix WritableDeserializer to set the Configuration on + deserialized Writables. (Enis Soztutar via cdouglas) + + HADOOP-3224. 'dfs -du /dir' does not return correct size. + (Lohit Vjayarenu via rangadi) + + HADOOP-3223. Fix typo in help message for -chmod. (rangadi) + + HADOOP-1373. checkPath() should ignore case when it compares authoriy. + (Edward J. Yoon via rangadi) + + HADOOP-3204. Fixes a problem to do with ReduceTask's LocalFSMerger not + catching Throwable. (Amar Ramesh Kamat via ddas) + + HADOOP-3229. Report progress when collecting records from the mapper and + the combiner. (Doug Cutting via cdouglas) + + HADOOP-3225. Unwrapping methods of RemoteException should initialize + detailedMassage field. (Mahadev Konar, shv, cdouglas) + + HADOOP-3247. Fix gridmix scripts to use the correct globbing syntax and + change maxentToSameCluster to run the correct number of jobs. + (Runping Qi via cdouglas) + + HADOOP-3242. Fix the RecordReader of SequenceFileAsBinaryInputFormat to + correctly read from the start of the split and not the beginning of the + file. (cdouglas via acmurthy) + + HADOOP-3256. Encodes the job name used in the filename for history files. + (Arun Murthy via ddas) + + HADOOP-3162. Ensure that comma-separated input paths are treated correctly + as multiple input paths. (Amareshwari Sri Ramadasu via acmurthy) + + HADOOP-3263. Ensure that the job-history log file always follows the + pattern of hostname_timestamp_jobid_username_jobname even if username + and/or jobname are not specfied. This helps to avoid wrong assumptions + made about the job-history log filename in jobhistory.jsp. (acmurthy) + + HADOOP-3251. Fixes getFilesystemName in JobTracker and LocalJobRunner to + use FileSystem.getUri instead of FileSystem.getName. (Arun Murthy via ddas) + + HADOOP-3237. Fixes TestDFSShell.testErrOutPut on Windows platform. + (Mahadev Konar via ddas) + + HADOOP-3279. TaskTracker checks for SUCCEEDED task status in addition to + COMMIT_PENDING status when it fails maps due to lost map. + (Devaraj Das) + + HADOOP-3286. Prevent collisions in gridmix output dirs by increasing the + granularity of the timestamp. (Runping Qi via cdouglas) + + HADOOP-3285. Fix input split locality when the splits align to + fs blocks. (omalley) + + HADOOP-3372. Fix heap management in streaming tests. (Arun Murthy via + cdouglas) + + HADOOP-3031. Fix javac warnings in test classes. (cdouglas) + + HADOOP-3382. Fix memory leak when files are not cleanly closed (rangadi) + + HADOOP-3322. Fix to push MetricsRecord for rpc metrics. (Eric Yang via + mukund) + +Release 0.16.4 - 2008-05-05 + + BUG FIXES + + HADOOP-3138. DFS mkdirs() should not throw an exception if the directory + already exists. (rangadi via mukund) + + HADOOP-3294. Fix distcp to check the destination length and retry the copy + if it doesn't match the src length. (Tsz Wo (Nicholas), SZE via mukund) + + HADOOP-3186. Fix incorrect permission checkding for mv and renameTo + in HDFS. (Tsz Wo (Nicholas), SZE via mukund) + +Release 0.16.3 - 2008-04-16 + + BUG FIXES + + HADOOP-3010. Fix ConcurrentModificationException in ipc.Server.Responder. + (rangadi) + + HADOOP-3154. Catch all Throwables from the SpillThread in MapTask, rather + than IOExceptions only. (ddas via cdouglas) + + HADOOP-3159. Avoid file system cache being overwritten whenever + configuration is modified. (Tsz Wo (Nicholas), SZE via hairong) + + HADOOP-3139. Remove the consistency check for the FileSystem cache in + closeAll() that causes spurious warnings and a deadlock. + (Tsz Wo (Nicholas), SZE via cdouglas) + + HADOOP-3195. Fix TestFileSystem to be deterministic. + (Tsz Wo (Nicholas), SZE via cdouglas) + + HADOOP-3069. Primary name-node should not truncate image when transferring + it from the secondary. (shv) + + HADOOP-3182. Change permissions of the job-submission directory to 777 + from 733 to ensure sharing of HOD clusters works correctly. (Tsz Wo + (Nicholas), Sze and Amareshwari Sri Ramadasu via acmurthy) + +Release 0.16.2 - 2008-04-02 + + BUG FIXES + + HADOOP-3011. Prohibit distcp from overwriting directories on the + destination filesystem with files. (cdouglas) + + HADOOP-3033. The BlockReceiver thread in the datanode writes data to + the block file, changes file position (if needed) and flushes all by + itself. The PacketResponder thread does not flush block file. (dhruba) + + HADOOP-2978. Fixes the JobHistory log format for counters. + (Runping Qi via ddas) + + HADOOP-2985. Fixes LocalJobRunner to tolerate null job output path. + Also makes the _temporary a constant in MRConstants.java. + (Amareshwari Sriramadasu via ddas) + + HADOOP-3003. FileSystem cache key is updated after a + FileSystem object is created. (Tsz Wo (Nicholas), SZE via dhruba) + + HADOOP-3042. Updates the Javadoc in JobConf.getOutputPath to reflect + the actual temporary path. (Amareshwari Sriramadasu via ddas) + + HADOOP-3007. Tolerate mirror failures while DataNode is replicating + blocks as it used to before. (rangadi) + + HADOOP-2944. Fixes a "Run on Hadoop" wizard NPE when creating a + Location from the wizard. (taton) + + HADOOP-3049. Fixes a problem in MultiThreadedMapRunner to do with + catching RuntimeExceptions. (Alejandro Abdelnur via ddas) + + HADOOP-3039. Fixes a problem to do with exceptions in tasks not + killing jobs. (Amareshwari Sriramadasu via ddas) + + HADOOP-3027. Fixes a problem to do with adding a shutdown hook in + FileSystem. (Amareshwari Sriramadasu via ddas) + + HADOOP-3056. Fix distcp when the target is an empty directory by + making sure the directory is created first. (cdouglas and acmurthy + via omalley) + + HADOOP-3070. Protect the trash emptier thread from null pointer + exceptions. (Koji Noguchi via omalley) + + HADOOP-3084. Fix HftpFileSystem to work for zero-lenghth files. + (cdouglas) + + HADOOP-3107. Fix NPE when fsck invokes getListings. (dhruba) + + HADOOP-3104. Limit MultithreadedMapRunner to have a fixed length queue + between the RecordReader and the map threads. (Alejandro Abdelnur via + omalley) + + HADOOP-2833. Do not use "Dr. Who" as the default user in JobClient. + A valid user name is required. (Tsz Wo (Nicholas), SZE via rangadi) + + HADOOP-3128. Throw RemoteException in setPermissions and setOwner of + DistributedFileSystem. (shv via nigel) + +Release 0.16.1 - 2008-03-13 + + INCOMPATIBLE CHANGES + + HADOOP-2869. Deprecate SequenceFile.setCompressionType in favor of + SequenceFile.createWriter, SequenceFileOutputFormat.setCompressionType, + and JobConf.setMapOutputCompressionType. (Arun C Murthy via cdouglas) + Configuration changes to hadoop-default.xml: + deprecated io.seqfile.compression.type + + IMPROVEMENTS + + HADOOP-2371. User guide for file permissions in HDFS. + (Robert Chansler via rangadi) + + HADOOP-3098. Allow more characters in user and group names while + using -chown and -chgrp commands. (rangadi) + + BUG FIXES + + HADOOP-2789. Race condition in IPC Server Responder that could close + connections early. (Raghu Angadi) + + HADOOP-2785. minor. Fix a typo in Datanode block verification + (Raghu Angadi) + + HADOOP-2788. minor. Fix help message for chgrp shell command (Raghu Angadi). + + HADOOP-1188. fstime file is updated when a storage directory containing + namespace image becomes inaccessible. (shv) + + HADOOP-2787. An application can set a configuration variable named + dfs.umask to set the umask that is used by DFS. + (Tsz Wo (Nicholas), SZE via dhruba) + + HADOOP-2780. The default socket buffer size for DataNodes is 128K. + (dhruba) + + HADOOP-2716. Superuser privileges for the Balancer. + (Tsz Wo (Nicholas), SZE via shv) + + HADOOP-2754. Filter out .crc files from local file system listing. + (Hairong Kuang via shv) + + HADOOP-2733. Fix compiler warnings in test code. + (Tsz Wo (Nicholas), SZE via cdouglas) + + HADOOP-2725. Modify distcp to avoid leaving partially copied files at + the destination after encountering an error. (Tsz Wo (Nicholas), SZE + via cdouglas) + + HADOOP-2391. Cleanup job output directory before declaring a job as + SUCCESSFUL. (Amareshwari Sri Ramadasu via ddas) + + HADOOP-2808. Minor fix to FileUtil::copy to mind the overwrite + formal. (cdouglas) + + HADOOP-2683. Moving UGI out of the RPC Server. + (Tsz Wo (Nicholas), SZE via shv) + + HADOOP-2814. Fix for NPE in datanode in unit test TestDataTransferProtocol. + (Raghu Angadi via dhruba) + + HADOOP-2811. Dump of counters in job history does not add comma between + groups. (runping via omalley) + + HADOOP-2735. Enables setting TMPDIR for tasks. + (Amareshwari Sri Ramadasu via ddas) + + HADOOP-2843. Fix protections on map-side join classes to enable derivation. + (cdouglas via omalley) + + HADOOP-2840. Fix gridmix scripts to correctly invoke the java sort through + the proper jar. (Mukund Madhugiri via cdouglas) + + HADOOP-2769. TestNNThroughputBnechmark should not use a fixed port for + the namenode http port. (omalley) + + HADOOP-2852. Update gridmix benchmark to avoid an artifically long tail. + (cdouglas) + + HADOOP-2894. Fix a problem to do with tasktrackers failing to connect to + JobTracker upon reinitialization. (Owen O'Malley via ddas). + + HADOOP-2903. Fix exception generated by Metrics while using pushMetric(). + (girish vaitheeswaran via dhruba) + + HADOOP-2904. Fix to RPC metrics to log the correct host name. + (girish vaitheeswaran via dhruba) + + HADOOP-2918. Improve error logging so that dfs writes failure with + "No lease on file" can be diagnosed. (dhruba) + + HADOOP-2923. Add SequenceFileAsBinaryInputFormat, which was + missed in the commit for HADOOP-2603. (cdouglas via omalley) + + HADOOP-2931. IOException thrown by DFSOutputStream had wrong stack + trace in some cases. (Michael Bieniosek via rangadi) + + HADOOP-2883. Write failures and data corruptions on HDFS files. + The write timeout is back to what it was on 0.15 release. Also, the + datnodes flushes the block file buffered output stream before + sending a positive ack for the packet back to the client. (dhruba) + + HADOOP-2756. NPE in DFSClient while closing DFSOutputStreams + under load. (rangadi) + + HADOOP-2958. Fixed FileBench which broke due to HADOOP-2391 which performs + a check for existence of the output directory and a trivial bug in + GenericMRLoadGenerator where min/max word lenghts were identical since + they were looking at the same config variables (Chris Douglas via + acmurthy) + + HADOOP-2915. Fixed FileSystem.CACHE so that a username is included + in the cache key. (Tsz Wo (Nicholas), SZE via nigel) + + HADOOP-2813. TestDU unit test uses its own directory to run its + sequence of tests. (Mahadev Konar via dhruba) + +Release 0.16.0 - 2008-02-07 + + INCOMPATIBLE CHANGES + + HADOOP-1245. Use the mapred.tasktracker.tasks.maximum value + configured on each tasktracker when allocating tasks, instead of + the value configured on the jobtracker. InterTrackerProtocol + version changed from 5 to 6. (Michael Bieniosek via omalley) + + HADOOP-1843. Removed code from Configuration and JobConf deprecated by + HADOOP-785 and a minor fix to Configuration.toString. Specifically the + important change is that mapred-default.xml is no longer supported and + Configuration no longer supports the notion of default/final resources. + (acmurthy) + + HADOOP-1302. Remove deprecated abacus code from the contrib directory. + This also fixes a configuration bug in AggregateWordCount, so that the + job now works. (enis) + + HADOOP-2288. Enhance FileSystem API to support access control. + (Tsz Wo (Nicholas), SZE via dhruba) + + HADOOP-2184. RPC Support for user permissions and authentication. + (Raghu Angadi via dhruba) + + HADOOP-2185. RPC Server uses any available port if the specified + port is zero. Otherwise it uses the specified port. Also combines + the configuration attributes for the servers' bind address and + port from "x.x.x.x" and "y" to "x.x.x.x:y". + Deprecated configuration variables: + dfs.info.bindAddress + dfs.info.port + dfs.datanode.bindAddress + dfs.datanode.port + dfs.datanode.info.bindAdress + dfs.datanode.info.port + dfs.secondary.info.bindAddress + dfs.secondary.info.port + mapred.job.tracker.info.bindAddress + mapred.job.tracker.info.port + mapred.task.tracker.report.bindAddress + tasktracker.http.bindAddress + tasktracker.http.port + New configuration variables (post HADOOP-2404): + dfs.secondary.http.address + dfs.datanode.address + dfs.datanode.http.address + dfs.http.address + mapred.job.tracker.http.address + mapred.task.tracker.report.address + mapred.task.tracker.http.address + (Konstantin Shvachko via dhruba) + + HADOOP-2401. Only the current leaseholder can abandon a block for + a HDFS file. ClientProtocol version changed from 20 to 21. + (Tsz Wo (Nicholas), SZE via dhruba) + + HADOOP-2381. Support permission information in FileStatus. Client + Protocol version changed from 21 to 22. (Raghu Angadi via dhruba) + + HADOOP-2110. Block report processing creates fewer transient objects. + Datanode Protocol version changed from 10 to 11. + (Sanjay Radia via dhruba) + + HADOOP-2567. Add FileSystem#getHomeDirectory(), which returns the + user's home directory in a FileSystem as a fully-qualified path. + FileSystem#getWorkingDirectory() is also changed to return a + fully-qualified path, which can break applications that attempt + to, e.g., pass LocalFileSystem#getWorkingDir().toString() directly + to java.io methods that accept file names. (cutting) + + HADOOP-2514. Change trash feature to maintain a per-user trash + directory, named ".Trash" in the user's home directory. The + "fs.trash.root" parameter is no longer used. Full source paths + are also no longer reproduced within the trash. + + HADOOP-2012. Periodic data verification on Datanodes. + (Raghu Angadi via dhruba) + + HADOOP-1707. The DFSClient does not use a local disk file to cache + writes to a HDFS file. Changed Data Transfer Version from 7 to 8. + (dhruba) + + HADOOP-2652. Fix permission issues for HftpFileSystem. This is an + incompatible change since distcp may not be able to copy files + from cluster A (compiled with this patch) to cluster B (compiled + with previous versions). (Tsz Wo (Nicholas), SZE via dhruba) + + NEW FEATURES + + HADOOP-1857. Ability to run a script when a task fails to capture stack + traces. (Amareshwari Sri Ramadasu via ddas) + + HADOOP-2299. Defination of a login interface. A simple implementation for + Unix users and groups. (Hairong Kuang via dhruba) + + HADOOP-1652. A utility to balance data among datanodes in a HDFS cluster. + (Hairong Kuang via dhruba) + + HADOOP-2085. A library to support map-side joins of consistently + partitioned and sorted data sets. (Chris Douglas via omalley) + + HADOOP-2336. Shell commands to modify file permissions. (rangadi) + + HADOOP-1298. Implement file permissions for HDFS. + (Tsz Wo (Nicholas) & taton via cutting) + + HADOOP-2447. HDFS can be configured to limit the total number of + objects (inodes and blocks) in the file system. (dhruba) + + HADOOP-2487. Added an option to get statuses for all submitted/run jobs. + This information can be used to develop tools for analysing jobs. + (Amareshwari Sri Ramadasu via acmurthy) + + HADOOP-1873. Implement user permissions for Map/Reduce framework. + (Hairong Kuang via shv) + + HADOOP-2532. Add to MapFile a getClosest method that returns the key + that comes just before if the key is not present. (stack via tomwhite) + + HADOOP-1883. Add versioning to Record I/O. (Vivek Ratan via ddas) + + HADOOP-2603. Add SeqeunceFileAsBinaryInputFormat, which reads + sequence files as BytesWritable/BytesWritable regardless of the + key and value types used to write the file. (cdouglas via omalley) + + HADOOP-2367. Add ability to profile a subset of map/reduce tasks and fetch + the result to the local filesystem of the submitting application. Also + includes a general IntegerRanges extension to Configuration for setting + positive, ranged parameters. (Owen O'Malley via cdouglas) + + IMPROVEMENTS + + HADOOP-2045. Change committer list on website to a table, so that + folks can list their organization, timezone, etc. (cutting) + + HADOOP-2058. Facilitate creating new datanodes dynamically in + MiniDFSCluster. (Hairong Kuang via dhruba) + + HADOOP-1855. fsck verifies block placement policies and reports + violations. (Konstantin Shvachko via dhruba) + + HADOOP-1604. An system administrator can finalize namenode upgrades + without running the cluster. (Konstantin Shvachko via dhruba) + + HADOOP-1839. Link-ify the Pending/Running/Complete/Killed grid in + jobdetails.jsp to help quickly narrow down and see categorized TIPs' + details via jobtasks.jsp. (Amar Kamat via acmurthy) + + HADOOP-1210. Log counters in job history. (Owen O'Malley via ddas) + + HADOOP-1912. Datanode has two new commands COPY and REPLACE. These are + needed for supporting data rebalance. (Hairong Kuang via dhruba) + + HADOOP-2086. This patch adds the ability to add dependencies to a job + (run via JobControl) after construction. (Adrian Woodhead via ddas) + + HADOOP-1185. Support changing the logging level of a server without + restarting the server. (Tsz Wo (Nicholas), SZE via dhruba) + + HADOOP-2134. Remove developer-centric requirements from overview.html and + keep it end-user focussed, specifically sections related to subversion and + building Hadoop. (Jim Kellerman via acmurthy) + + HADOOP-1989. Support simulated DataNodes. This helps creating large virtual + clusters for testing purposes. (Sanjay Radia via dhruba) + + HADOOP-1274. Support different number of mappers and reducers per + TaskTracker to allow administrators to better configure and utilize + heterogenous clusters. + Configuration changes to hadoop-default.xml: + add mapred.tasktracker.map.tasks.maximum (default value of 2) + add mapred.tasktracker.reduce.tasks.maximum (default value of 2) + remove mapred.tasktracker.tasks.maximum (deprecated for 0.16.0) + (Amareshwari Sri Ramadasu via acmurthy) + + HADOOP-2104. Adds a description to the ant targets. This makes the + output of "ant -projecthelp" sensible. (Chris Douglas via ddas) + + HADOOP-2127. Added a pipes sort example to benchmark trivial pipes + application versus trivial java application. (omalley via acmurthy) + + HADOOP-2113. A new shell command "dfs -text" to view the contents of + a gziped or SequenceFile. (Chris Douglas via dhruba) + + HADOOP-2207. Add a "package" target for contrib modules that + permits each to determine what files are copied into release + builds. (stack via cutting) + + HADOOP-1984. Makes the backoff for failed fetches exponential. + Earlier, it was a random backoff from an interval. + (Amar Kamat via ddas) + + HADOOP-1327. Include website documentation for streaming. (Rob Weltman + via omalley) + + HADOOP-2000. Rewrite NNBench to measure namenode performance accurately. + It now uses the map-reduce framework for load generation. + (Mukund Madhugiri via dhruba) + + HADOOP-2248. Speeds up the framework w.r.t Counters. Also has API + updates to the Counters part. (Owen O'Malley via ddas) + + HADOOP-2326. The initial block report at Datanode startup time has + a random backoff period. (Sanjay Radia via dhruba) + + HADOOP-2432. HDFS includes the name of the file while throwing + "File does not exist" exception. (Jim Kellerman via dhruba) + + HADOOP-2457. Added a 'forrest.home' property to the 'docs' target in + build.xml. (acmurthy) + + HADOOP-2149. A new benchmark for three name-node operation: file create, + open, and block report, to evaluate the name-node performance + for optimizations or new features. (Konstantin Shvachko via shv) + + HADOOP-2466. Change FileInputFormat.computeSplitSize to a protected + non-static method to allow sub-classes to provide alternate + implementations. (Alejandro Abdelnur via acmurthy) + + HADOOP-2425. Change TextOutputFormat to handle Text specifically for better + performance. Make NullWritable implement Comparable. Make TextOutputFormat + treat NullWritable like null. (omalley) + + HADOOP-1719. Improves the utilization of shuffle copier threads. + (Amar Kamat via ddas) + + HADOOP-2390. Added documentation for user-controls for intermediate + map-outputs & final job-outputs and native-hadoop libraries. (acmurthy) + + HADOOP-1660. Add the cwd of the map/reduce task to the java.library.path + of the child-jvm to support loading of native libraries distributed via + the DistributedCache. (acmurthy) + + HADOOP-2285. Speeds up TextInputFormat. Also includes updates to the + Text API. (Owen O'Malley via cdouglas) + + HADOOP-2233. Adds a generic load generator for modeling MR jobs. (cdouglas) + + HADOOP-2369. Adds a set of scripts for simulating a mix of user map/reduce + workloads. (Runping Qi via cdouglas) + + HADOOP-2547. Removes use of a 'magic number' in build.xml. + (Hrishikesh via nigel) + + HADOOP-2268. Fix org.apache.hadoop.mapred.jobcontrol classes to use the + List/Map interfaces rather than concrete ArrayList/HashMap classes + internally. (Adrian Woodhead via acmurthy) + + HADOOP-2406. Add a benchmark for measuring read/write performance through + the InputFormat interface, particularly with compression. (cdouglas) + + HADOOP-2131. Allow finer-grained control over speculative-execution. Now + users can set it for maps and reduces independently. + Configuration changes to hadoop-default.xml: + deprecated mapred.speculative.execution + add mapred.map.tasks.speculative.execution + add mapred.reduce.tasks.speculative.execution + (Amareshwari Sri Ramadasu via acmurthy) + + HADOOP-1965. Interleave sort/spill in teh map-task along with calls to the + Mapper.map method. This is done by splitting the 'io.sort.mb' buffer into + two and using one half for collecting map-outputs and the other half for + sort/spill. (Amar Kamat via acmurthy) + + HADOOP-2464. Unit tests for chmod, chown, and chgrp using DFS. + (Raghu Angadi) + + HADOOP-1876. Persist statuses of completed jobs in HDFS so that the + JobClient can query and get information about decommissioned jobs and also + across JobTracker restarts. + Configuration changes to hadoop-default.xml: + add mapred.job.tracker.persist.jobstatus.active (default value of false) + add mapred.job.tracker.persist.jobstatus.hours (default value of 0) + add mapred.job.tracker.persist.jobstatus.dir (default value of + /jobtracker/jobsInfo) + (Alejandro Abdelnur via acmurthy) + + HADOOP-2077. Added version and build information to STARTUP_MSG for all + hadoop daemons to aid error-reporting, debugging etc. (acmurthy) + + HADOOP-2398. Additional instrumentation for NameNode and RPC server. + Add support for accessing instrumentation statistics via JMX. + (Sanjay radia via dhruba) + + HADOOP-2449. A return of the non-MR version of NNBench. + (Sanjay Radia via shv) + + HADOOP-1989. Remove 'datanodecluster' command from bin/hadoop. + (Sanjay Radia via shv) + + HADOOP-1742. Improve JavaDoc documentation for ClientProtocol, DFSClient, + and FSNamesystem. (Konstantin Shvachko) + + HADOOP-2298. Add Ant target for a binary-only distribution. + (Hrishikesh via nigel) + + HADOOP-2509. Add Ant target for Rat report (Apache license header + reports). (Hrishikesh via nigel) + + HADOOP-2469. WritableUtils.clone should take a Configuration + instead of a JobConf. (stack via omalley) + + HADOOP-2659. Introduce superuser permissions for admin operations. + (Tsz Wo (Nicholas), SZE via shv) + + HADOOP-2596. Added a SequenceFile.createWriter api which allows the user + to specify the blocksize, replication factor and the buffersize to be + used for the underlying HDFS file. (Alejandro Abdelnur via acmurthy) + + HADOOP-2431. Test HDFS File Permissions. (Hairong Kuang via shv) + + HADOOP-2232. Add an option to disable Nagle's algorithm in the IPC stack. + (Clint Morgan via cdouglas) + + HADOOP-2342. Created a micro-benchmark for measuring + local-file versus hdfs reads. (Owen O'Malley via nigel) + + HADOOP-2529. First version of HDFS User Guide. (Raghu Angadi) + + HADOOP-2690. Add jar-test target to build.xml, separating compilation + and packaging of the test classes. (Enis Soztutar via cdouglas) + + OPTIMIZATIONS + + HADOOP-1898. Release the lock protecting the last time of the last stack + dump while the dump is happening. (Amareshwari Sri Ramadasu via omalley) + + HADOOP-1900. Makes the heartbeat and task event queries interval + dependent on the cluster size. (Amareshwari Sri Ramadasu via ddas) + + HADOOP-2208. Counter update frequency (from TaskTracker to JobTracker) is + capped at 1 minute. (Amareshwari Sri Ramadasu via ddas) + + HADOOP-2284. Reduce the number of progress updates during the sorting in + the map task. (Amar Kamat via ddas) + + BUG FIXES + + HADOOP-2583. Fixes a bug in the Eclipse plug-in UI to edit locations. + Plug-in version is now synchronized with Hadoop version. + + HADOOP-2100. Remove faulty check for existence of $HADOOP_PID_DIR and let + 'mkdir -p' check & create it. (Michael Bieniosek via acmurthy) + + HADOOP-1642. Ensure jobids generated by LocalJobRunner are unique to + avoid collissions and hence job-failures. (Doug Cutting via acmurthy) + + HADOOP-2096. Close open file-descriptors held by streams while localizing + job.xml in the JobTracker and while displaying it on the webui in + jobconf.jsp. (Amar Kamat via acmurthy) + + HADOOP-2098. Log start & completion of empty jobs to JobHistory, which + also ensures that we close the file-descriptor of the job's history log + opened during job-submission. (Amar Kamat via acmurthy) + + HADOOP-2112. Adding back changes to build.xml lost while reverting + HADOOP-1622 i.e. http://svn.apache.org/viewvc?view=rev&revision=588771. + (acmurthy) + + HADOOP-2089. Fixes the command line argument handling to handle multiple + -cacheArchive in Hadoop streaming. (Lohit Vijayarenu via ddas) + + HADOOP-2071. Fix StreamXmlRecordReader to use a BufferedInputStream + wrapped over the DFSInputStream since mark/reset aren't supported by + DFSInputStream anymore. (Lohit Vijayarenu via acmurthy) + + HADOOP-1348. Allow XML comments inside configuration files. + (Rajagopal Natarajan and Enis Soztutar via enis) + + HADOOP-1952. Improve handling of invalid, user-specified classes while + configuring streaming jobs such as combiner, input/output formats etc. + Now invalid options are caught, logged and jobs are failed early. (Lohit + Vijayarenu via acmurthy) + + HADOOP-2151. FileSystem.globPaths validates the list of Paths that + it returns. (Lohit Vijayarenu via dhruba) + + HADOOP-2121. Cleanup DFSOutputStream when the stream encountered errors + when Datanodes became full. (Raghu Angadi via dhruba) + + HADOOP-1130. The FileSystem.closeAll() method closes all existing + DFSClients. (Chris Douglas via dhruba) + + HADOOP-2204. DFSTestUtil.waitReplication was not waiting for all replicas + to get created, thus causing unit test failure. + (Raghu Angadi via dhruba) + + HADOOP-2078. An zero size file may have no blocks associated with it. + (Konstantin Shvachko via dhruba) + + HADOOP-2212. ChecksumFileSystem.getSumBufferSize might throw + java.lang.ArithmeticException. The fix is to initialize bytesPerChecksum + to 0. (Michael Bieniosek via ddas) + + HADOOP-2216. Fix jobtasks.jsp to ensure that it first collects the + taskids which satisfy the filtering criteria and then use that list to + print out only the required task-reports, previously it was oblivious to + the filtering and hence used the wrong index into the array of task-reports. + (Amar Kamat via acmurthy) + + HADOOP-2272. Fix findbugs target to reflect changes made to the location + of the streaming jar file by HADOOP-2207. (Adrian Woodhead via nigel) + + HADOOP-2244. Fixes the MapWritable.readFields to clear the instance + field variable every time readFields is called. (Michael Stack via ddas). + + HADOOP-2245. Fixes LocalJobRunner to include a jobId in the mapId. Also, + adds a testcase for JobControl. (Adrian Woodhead via ddas). + + HADOOP-2275. Fix erroneous detection of corrupted file when namenode + fails to allocate any datanodes for newly allocated block. + (Dhruba Borthakur via dhruba) + + HADOOP-2256. Fix a buf in the namenode that could cause it to encounter + an infinite loop while deleting excess replicas that were created by + block rebalancing. (Hairong Kuang via dhruba) + + HADOOP-2209. SecondaryNamenode process exits if it encounters exceptions + that it cannot handle. (Dhruba Borthakur via dhruba) + + HADOOP-2314. Prevent TestBlockReplacement from occasionally getting + into an infinite loop. (Hairong Kuang via dhruba) + + HADOOP-2300. This fixes a bug where mapred.tasktracker.tasks.maximum + would be ignored even if it was set in hadoop-site.xml. + (Amareshwari Sri Ramadasu via ddas) + + HADOOP-2349. Improve code layout in file system transaction logging code. + (Tsz Wo (Nicholas), SZE via dhruba) + + HADOOP-2368. Fix unit tests on Windows. + (Tsz Wo (Nicholas), SZE via dhruba) + + HADOOP-2363. This fix allows running multiple instances of the unit test + in parallel. The bug was introduced in HADOOP-2185 that changed + port-rolling behaviour. (Konstantin Shvachko via dhruba) + + HADOOP-2271. Fix chmod task to be non-parallel. (Adrian Woodhead via + omalley) + + HADOOP-2313. Fail the build if building libhdfs fails. (nigel via omalley) + + HADOOP-2359. Remove warning for interruptted exception when closing down + minidfs. (dhruba via omalley) + + HADOOP-1841. Prevent slow clients from consuming threads in the NameNode. + (dhruba) + + HADOOP-2323. JobTracker.close() should not print stack traces for + normal exit. (jimk via cutting) + + HADOOP-2376. Prevents sort example from overriding the number of maps. + (Owen O'Malley via ddas) + + HADOOP-2434. FSDatasetInterface read interface causes HDFS reads to occur + in 1 byte chunks, causing performance degradation. + (Raghu Angadi via dhruba) + + HADOOP-2459. Fix package target so that src/docs/build files are not + included in the release. (nigel) + + HADOOP-2215. Fix documentation in cluster_setup.html & + mapred_tutorial.html reflect that mapred.tasktracker.tasks.maximum has + been superceeded by mapred.tasktracker.{map|reduce}.tasks.maximum. + (Amareshwari Sri Ramadasu via acmurthy) + + HADOOP-2459. Fix package target so that src/docs/build files are not + included in the release. (nigel) + + HADOOP-2352. Remove AC_CHECK_LIB for libz and liblzo to ensure that + libhadoop.so doesn't have a dependency on them. (acmurthy) + + HADOOP-2453. Fix the configuration for wordcount-simple example in Hadoop + Pipes which currently produces an XML parsing error. (Amareshwari Sri + Ramadasu via acmurthy) + + HADOOP-2476. Unit test failure while reading permission bits of local + file system (on Windows) fixed. (Raghu Angadi via dhruba) + + HADOOP-2247. Fine-tune the strategies for killing mappers and reducers + due to failures while fetching map-outputs. Now the map-completion times + and number of currently running reduces are taken into account by the + JobTracker before killing the mappers, while the progress made by the + reducer and the number of fetch-failures vis-a-vis total number of + fetch-attempts are taken into account before teh reducer kills itself. + (Amar Kamat via acmurthy) + + HADOOP-2452. Fix eclipse plug-in build.xml to refers to the right + location where hadoop-*-core.jar is generated. (taton) + + HADOOP-2492. Additional debugging in the rpc server to better + diagnose ConcurrentModificationException. (dhruba) + + HADOOP-2344. Enhance the utility for executing shell commands to read the + stdout/stderr streams while waiting for the command to finish (to free up + the buffers). Also, this patch throws away stderr of the DF utility. + @deprecated + org.apache.hadoop.fs.ShellCommand for org.apache.hadoop.util.Shell + org.apache.hadoop.util.ShellUtil for + org.apache.hadoop.util.Shell.ShellCommandExecutor + (Amar Kamat via acmurthy) + + HADOOP-2511. Fix a javadoc warning in org.apache.hadoop.util.Shell + introduced by HADOOP-2344. (acmurthy) + + HADOOP-2442. Fix TestLocalFileSystemPermission.testLocalFSsetOwner + to work on more platforms. (Raghu Angadi via nigel) + + HADOOP-2488. Fix a regression in random read performance. + (Michael Stack via rangadi) + + HADOOP-2523. Fix TestDFSShell.testFilePermissions on Windows. + (Raghu Angadi via nigel) + + HADOOP-2535. Removed support for deprecated mapred.child.heap.size and + fixed some indentation issues in TaskRunner. (acmurthy) + Configuration changes to hadoop-default.xml: + remove mapred.child.heap.size + + HADOOP-2512. Fix error stream handling in Shell. Use exit code to + detect shell command errors in RawLocalFileSystem. (Raghu Angadi) + + HADOOP-2446. Fixes TestHDFSServerPorts and TestMRServerPorts so they + do not rely on statically configured ports and cleanup better. (nigel) + + HADOOP-2537. Make build process compatible with Ant 1.7.0. + (Hrishikesh via nigel) + + HADOOP-1281. Ensure running tasks of completed map TIPs (e.g. speculative + tasks) are killed as soon as the TIP completed. (acmurthy) + + HADOOP-2571. Suppress a suprious warning in test code. (cdouglas) + + HADOOP-2481. NNBench report its progress periodically. + (Hairong Kuang via dhruba) + + HADOOP-2601. Start name-node on a free port for TestNNThroughputBenchmark. + (Konstantin Shvachko) + + HADOOP-2494. Set +x on contrib/*/bin/* in packaged tar bundle. + (stack via tomwhite) + + HADOOP-2605. Remove bogus leading slash in task-tracker report bindAddress. + (Konstantin Shvachko) + + HADOOP-2620. Trivial. 'bin/hadoop fs -help' did not list chmod, chown, and + chgrp. (Raghu Angadi) + + HADOOP-2614. The DFS WebUI accesses are configured to be from the user + specified by dfs.web.ugi. (Tsz Wo (Nicholas), SZE via dhruba) + + HADOOP-2543. Implement a "no-permission-checking" mode for smooth + upgrade from a pre-0.16 install of HDFS. + (Hairong Kuang via dhruba) + + HADOOP-290. A DataNode log message now prints the target of a replication + request correctly. (dhruba) + + HADOOP-2538. Redirect to a warning, if plaintext parameter is true but + the filter parameter is not given in TaskLogServlet. + (Michael Bieniosek via enis) + + HADOOP-2582. Prevent 'bin/hadoop fs -copyToLocal' from creating + zero-length files when the src does not exist. + (Lohit Vijayarenu via cdouglas) + + HADOOP-2189. Incrementing user counters should count as progress. (ddas) + + HADOOP-2649. The NameNode periodically computes replication work for + the datanodes. The periodicity of this computation is now configurable. + (dhruba) + + HADOOP-2549. Correct disk size computation so that data-nodes could switch + to other local drives if current is full. (Hairong Kuang via shv) + + HADOOP-2633. Fsck should call name-node methods directly rather than + through rpc. (Tsz Wo (Nicholas), SZE via shv) + + HADOOP-2687. Modify a few log message generated by dfs client to be + logged only at INFO level. (stack via dhruba) + + HADOOP-2402. Fix BlockCompressorStream to ensure it buffers data before + sending it down to the compressor so that each write call doesn't + compress. (Chris Douglas via acmurthy) + + HADOOP-2645. The Metrics initialization code does not throw + exceptions when servers are restarted by MiniDFSCluster. + (Sanjay Radia via dhruba) + + HADOOP-2691. Fix a race condition that was causing the DFSClient + to erroneously remove a good datanode from a pipeline that actually + had another datanode that was bad. (dhruba) + + HADOOP-1195. All code in FSNamesystem checks the return value + of getDataNode for null before using it. (dhruba) + + HADOOP-2640. Fix a bug in MultiFileSplitInputFormat that was always + returning 1 split in some circumstances. (Enis Soztutar via nigel) + + HADOOP-2626. Fix paths with special characters to work correctly + with the local filesystem. (Thomas Friol via cutting) + + HADOOP-2646. Fix SortValidator to work with fully-qualified + working directories. (Arun C Murthy via nigel) + + HADOOP-2092. Added a ping mechanism to the pipes' task to periodically + check if the parent Java task is running, and exit if the parent isn't + alive and responding. (Amareshwari Sri Ramadasu via acmurthy) + + HADOOP-2714. TestDecommission failed on windows because the replication + request was timing out. (dhruba) + + HADOOP-2576. Namenode performance degradation over time triggered by + large heartbeat interval. (Raghu Angadi) + + HADOOP-2713. TestDatanodeDeath failed on windows because the replication + request was timing out. (dhruba) + + HADOOP-2639. Fixes a problem to do with incorrect maintenance of values + for runningMapTasks/runningReduceTasks. (Amar Kamat and Arun Murthy + via ddas) + + HADOOP-2723. Fixed the check for checking whether to do user task + profiling. (Amareshwari Sri Ramadasu via omalley) + + HADOOP-2734. Link forrest docs to new http://hadoop.apache.org + (Doug Cutting via nigel) + + HADOOP-2641. Added Apache license headers to 95 files. (nigel) + + HADOOP-2732. Fix bug in path globbing. (Hairong Kuang via nigel) + + HADOOP-2404. Fix backwards compatability with hadoop-0.15 configuration + files that was broken by HADOOP-2185. (omalley) + + HADOOP-2755. Fix fsck performance degradation because of permissions + issue. (Tsz Wo (Nicholas), SZE via dhruba) + + HADOOP-2768. Fix performance regression caused by HADOOP-1707. + (dhruba borthakur via nigel) + + HADOOP-3108. Fix NPE in setPermission and setOwner. (shv) + +Release 0.15.3 - 2008-01-18 + + BUG FIXES + + HADOOP-2562. globPaths supports {ab,cd}. (Hairong Kuang via dhruba) + + HADOOP-2540. fsck reports missing blocks incorrectly. (dhruba) + + HADOOP-2570. "work" directory created unconditionally, and symlinks + created from the task cwds. + + HADOOP-2574. Fixed mapred_tutorial.xml to correct minor errors with the + WordCount examples. (acmurthy) + +Release 0.15.2 - 2008-01-02 + + BUG FIXES + + HADOOP-2246. Moved the changelog for HADOOP-1851 from the NEW FEATURES + section to the INCOMPATIBLE CHANGES section. (acmurthy) + + HADOOP-2238. Fix TaskGraphServlet so that it sets the content type of + the response appropriately. (Paul Saab via enis) + + HADOOP-2129. Fix so that distcp works correctly when source is + HDFS but not the default filesystem. HDFS paths returned by the + listStatus() method are now fully-qualified. (cutting) + + HADOOP-2378. Fixes a problem where the last task completion event would + get created after the job completes. (Alejandro Abdelnur via ddas) + + HADOOP-2228. Checks whether a job with a certain jobId is already running + and then tries to create the JobInProgress object. + (Johan Oskarsson via ddas) + + HADOOP-2422. dfs -cat multiple files fail with 'Unable to write to + output stream'. (Raghu Angadi via dhruba) + + HADOOP-2460. When the namenode encounters ioerrors on writing a + transaction log, it stops writing new transactions to that one. + (Raghu Angadi via dhruba) + + HADOOP-2227. Use the LocalDirAllocator uniformly for handling all of the + temporary storage required for a given task. It also implies that + mapred.local.dir.minspacestart is handled by checking if there is enough + free-space on any one of the available disks. (Amareshwari Sri Ramadasu + via acmurthy) + + HADOOP-2437. Fix the LocalDirAllocator to choose the seed for the + round-robin disk selections randomly. This helps in spreading data across + multiple partitions much better. (acmurhty) + + HADOOP-2486. When the list of files from the InMemoryFileSystem is obtained + for merging, this patch will ensure that only those files whose checksums + have also got created (renamed) are returned. (ddas) + + HADOOP-2456. Hardcode English locale to prevent NumberFormatException + from occurring when starting the NameNode with certain locales. + (Matthias Friedrich via nigel) + + IMPROVEMENTS + + HADOOP-2160. Remove project-level, non-user documentation from + releases, since it's now maintained in a separate tree. (cutting) + + HADOOP-1327. Add user documentation for streaming. (cutting) + + HADOOP-2382. Add hadoop-default.html to subversion. (cutting) + + HADOOP-2158. hdfsListDirectory calls FileSystem.listStatus instead + of FileSystem.listPaths. This reduces the number of RPC calls on the + namenode, thereby improving scalability. (Christian Kunz via dhruba) + +Release 0.15.1 - 2007-11-27 + + INCOMPATIBLE CHANGES + + HADOOP-713. Reduce CPU usage on namenode while listing directories. + FileSystem.listPaths does not return the size of the entire subtree. + Introduced a new API ClientProtocol.getContentLength that returns the + size of the subtree. (Dhruba Borthakur via dhruba) + + IMPROVEMENTS + + HADOOP-1917. Addition of guides/tutorial for better overall + documentation for Hadoop. Specifically: + * quickstart.html is targetted towards first-time users and helps them + setup a single-node cluster and play with Hadoop. + * cluster_setup.html helps admins to configure and setup non-trivial + hadoop clusters. + * mapred_tutorial.html is a comprehensive Map-Reduce tutorial. + (acmurthy) + + BUG FIXES + + HADOOP-2174. Removed the unnecessary Reporter.setStatus call from + FSCopyFilesMapper.close which led to a NPE since the reporter isn't valid + in the close method. (Chris Douglas via acmurthy) + + HADOOP-2172. Restore performance of random access to local files + by caching positions of local input streams, avoiding a system + call. (cutting) + + HADOOP-2205. Regenerate the Hadoop website since some of the changes made + by HADOOP-1917 weren't correctly copied over to the trunk/docs directory. + Also fixed a couple of minor typos and broken links. (acmurthy) + +Release 0.15.0 - 2007-11-2 + + INCOMPATIBLE CHANGES + + HADOOP-1708. Make files appear in namespace as soon as they are + created. (Dhruba Borthakur via dhruba) + + HADOOP-999. A HDFS Client immediately informs the NameNode of a new + file creation. ClientProtocol version changed from 14 to 15. + (Tsz Wo (Nicholas), SZE via dhruba) + + HADOOP-932. File locking interfaces and implementations (that were + earlier deprecated) are removed. Client Protocol version changed + from 15 to 16. (Raghu Angadi via dhruba) + + HADOOP-1621. FileStatus is now a concrete class and FileSystem.listPaths + is deprecated and replaced with listStatus. (Chris Douglas via omalley) + + HADOOP-1656. The blockSize of a file is stored persistently in the file + inode. (Dhruba Borthakur via dhruba) + + HADOOP-1838. The blocksize of files created with an earlier release is + set to the default block size. (Dhruba Borthakur via dhruba) + + HADOOP-785. Add support for 'final' Configuration parameters, + removing support for 'mapred-default.xml', and changing + 'hadoop-site.xml' to not override other files. Now folks should + generally use 'hadoop-site.xml' for all configurations. Values + with a 'final' tag may not be overridden by subsequently loaded + configuration files, e.g., by jobs. (Arun C. Murthy via cutting) + + HADOOP-1846. DatanodeReport in ClientProtocol can report live + datanodes, dead datanodes or all datanodes. Client Protocol version + changed from 17 to 18. (Hairong Kuang via dhruba) + + HADOOP-1851. Permit specification of map output compression type + and codec, independent of the final output's compression + parameters. (Arun C Murthy via cutting) + + HADOOP-1819. Jobtracker cleanups, including binding ports before + clearing state directories, so that inadvertently starting a + second jobtracker doesn't trash one that's already running. Removed + method JobTracker.getTracker() because the static variable, which + stored the value caused initialization problems. + (omalley via cutting) + + NEW FEATURES + + HADOOP-89. A client can access file data even before the creator + has closed the file. Introduce a new command "tail" from dfs shell. + (Dhruba Borthakur via dhruba) + + HADOOP-1636. Allow configuration of the number of jobs kept in + memory by the JobTracker. (Michael Bieniosek via omalley) + + HADOOP-1667. Reorganize CHANGES.txt into sections to make it + easier to read. Also remove numbering, to make merging easier. + (cutting) + + HADOOP-1610. Add metrics for failed tasks. + (Devaraj Das via tomwhite) + + HADOOP-1767. Add "bin/hadoop job -list" sub-command. (taton via cutting) + + HADOOP-1351. Add "bin/hadoop job [-fail-task|-kill-task]" sub-commands + to terminate a particular task-attempt. (Enis Soztutar via acmurthy) + + HADOOP-1880. SleepJob : An example job that sleeps at each map and + reduce task. (enis) + + HADOOP-1809. Add a link in web site to #hadoop IRC channel. (enis) + + HADOOP-1894. Add percentage graphs and mapred task completion graphs + to Web User Interface. Users not using Firefox may install a plugin to + their browsers to see svg graphics. (enis) + + HADOOP-1914. Introduce a new NamenodeProtocol to allow secondary + namenodes and rebalancing processes to communicate with a primary + namenode. (Hairong Kuang via dhruba) + + HADOOP-1963. Add a FileSystem implementation for the Kosmos + Filesystem (KFS). (Sriram Rao via cutting) + + HADOOP-1822. Allow the specialization and configuration of socket + factories. Provide a StandardSocketFactory, and a SocksSocketFactory to + allow the use of SOCKS proxies. (taton). + + HADOOP-1968. FileSystem supports wildcard input syntax "{ }". + (Hairong Kuang via dhruba) + + HADOOP-2566. Add globStatus method to the FileSystem interface + and deprecate globPath and listPath. (Hairong Kuang via hairong) + + OPTIMIZATIONS + + HADOOP-1910. Reduce the number of RPCs that DistributedFileSystem.create() + makes to the namenode. (Raghu Angadi via dhruba) + + HADOOP-1565. Reduce memory usage of NameNode by replacing + TreeMap in HDFS Namespace with ArrayList. + (Dhruba Borthakur via dhruba) + + HADOOP-1743. Change DFS INode from a nested class to standalone + class, with specialized subclasses for directories and files, to + save memory on the namenode. (Konstantin Shvachko via cutting) + + HADOOP-1759. Change file name in INode from String to byte[], + saving memory on the namenode. (Konstantin Shvachko via cutting) + + HADOOP-1766. Save memory in namenode by having BlockInfo extend + Block, and replace many uses of Block with BlockInfo. + (Konstantin Shvachko via cutting) + + HADOOP-1687. Save memory in namenode by optimizing BlockMap + representation. (Konstantin Shvachko via cutting) + + HADOOP-1774. Remove use of INode.parent in Block CRC upgrade. + (Raghu Angadi via dhruba) + + HADOOP-1788. Increase the buffer size on the Pipes command socket. + (Amareshwari Sri Ramadasu and Christian Kunz via omalley) + + BUG FIXES + + HADOOP-1946. The Datanode code does not need to invoke du on + every heartbeat. (Hairong Kuang via dhruba) + + HADOOP-1935. Fix a NullPointerException in internalReleaseCreate. + (Dhruba Borthakur) + + HADOOP-1933. The nodes listed in include and exclude files + are always listed in the datanode report. + (Raghu Angadi via dhruba) + + HADOOP-1953. The job tracker should wait beteween calls to try and delete + the system directory (Owen O'Malley via devaraj) + + HADOOP-1932. TestFileCreation fails with message saying filestatus.dat + is of incorrect size. (Dhruba Borthakur via dhruba) + + HADOOP-1573. Support for 0 reducers in PIPES. + (Owen O'Malley via devaraj) + + HADOOP-1500. Fix typographical errors in the DFS WebUI. + (Nigel Daley via dhruba) + + HADOOP-1076. Periodic checkpoint can continue even if an earlier + checkpoint encountered an error. (Dhruba Borthakur via dhruba) + + HADOOP-1887. The Namenode encounters an ArrayIndexOutOfBoundsException + while listing a directory that had a file that was + being actively written to. (Dhruba Borthakur via dhruba) + + HADOOP-1904. The Namenode encounters an exception because the + list of blocks per datanode-descriptor was corrupted. + (Konstantin Shvachko via dhruba) + + HADOOP-1762. The Namenode fsimage does not contain a list of + Datanodes. (Raghu Angadi via dhruba) + + HADOOP-1890. Removed debugging prints introduced by HADOOP-1774. + (Raghu Angadi via dhruba) + + HADOOP-1763. Too many lost task trackers on large clusters due to + insufficient number of RPC handler threads on the JobTracker. + (Devaraj Das) + + HADOOP-1463. HDFS report correct usage statistics for disk space + used by HDFS. (Hairong Kuang via dhruba) + + HADOOP-1692. In DFS ant task, don't cache the Configuration. + (Chris Douglas via cutting) + + HADOOP-1726. Remove lib/jetty-ext/ant.jar. (omalley) + + HADOOP-1772. Fix hadoop-daemon.sh script to get correct hostname + under Cygwin. (Tsz Wo (Nicholas), SZE via cutting) + + HADOOP-1749. Change TestDFSUpgrade to sort files, fixing sporadic + test failures. (Enis Soztutar via cutting) + + HADOOP-1748. Fix tasktracker to be able to launch tasks when log + directory is relative. (omalley via cutting) + + HADOOP-1775. Fix a NullPointerException and an + IllegalArgumentException in MapWritable. + (Jim Kellerman via cutting) + + HADOOP-1795. Fix so that jobs can generate output file names with + special characters. (Fr??d??ric Bertin via cutting) + + HADOOP-1810. Fix incorrect value type in MRBench (SmallJobs) + (Devaraj Das via tomwhite) + + HADOOP-1806. Fix ant task to compile again, also fix default + builds to compile ant tasks. (Chris Douglas via cutting) + + HADOOP-1758. Fix escape processing in librecordio to not be + quadratic. (Vivek Ratan via cutting) + + HADOOP-1817. Fix MultiFileSplit to read and write the split + length, so that it is not always zero in map tasks. + (Thomas Friol via cutting) + + HADOOP-1853. Fix contrib/streaming to accept multiple -cacheFile + options. (Prachi Gupta via cutting) + + HADOOP-1818. Fix MultiFileInputFormat so that it does not return + empty splits when numPaths < numSplits. (Thomas Friol via enis) + + HADOOP-1840. Fix race condition which leads to task's diagnostic + messages getting lost. (acmurthy) + + HADOOP-1885. Fix race condition in MiniDFSCluster shutdown. + (Chris Douglas via nigel) + + HADOOP-1889. Fix path in EC2 scripts for building your own AMI. + (tomwhite) + + HADOOP-1892. Fix a NullPointerException in the JobTracker when + trying to fetch a task's diagnostic messages from the JobClient. + (Amar Kamat via acmurthy) + + HADOOP-1897. Completely remove about.html page from the web site. + (enis) + + HADOOP-1907. Fix null pointer exception when getting task diagnostics + in JobClient. (Christian Kunz via omalley) + + HADOOP-1882. Remove spurious asterisks from decimal number displays. + (Raghu Angadi via cutting) + + HADOOP-1783. Make S3 FileSystem return Paths fully-qualified with + scheme and host. (tomwhite) + + HADOOP-1925. Make pipes' autoconf script look for libsocket and libnsl, so + that it can compile under Solaris. (omalley) + + HADOOP-1940. TestDFSUpgradeFromImage must shut down its MiniDFSCluster. + (Chris Douglas via nigel) + + HADOOP-1930. Fix the blame for failed fetchs on the right host. (Arun C. + Murthy via omalley) + + HADOOP-1934. Fix the platform name on Mac to use underscores rather than + spaces. (omalley) + + HADOOP-1959. Use "/" instead of File.separator in the StatusHttpServer. + (jimk via omalley) + + HADOOP-1626. Improve dfsadmin help messages. + (Lohit Vijayarenu via dhruba) + + HADOOP-1695. The SecondaryNamenode waits for the Primary NameNode to + start up. (Dhruba Borthakur) + + HADOOP-1983. Have Pipes flush the command socket when progress is sent + to prevent timeouts during long computations. (omalley) + + HADOOP-1875. Non-existant directories or read-only directories are + filtered from dfs.client.buffer.dir. (Hairong Kuang via dhruba) + + HADOOP-1992. Fix the performance degradation in the sort validator. + (acmurthy via omalley) + + HADOOP-1874. Move task-outputs' promotion/discard to a separate thread + distinct from the main heartbeat-processing thread. The main upside being + that we do not lock-up the JobTracker during HDFS operations, which + otherwise may lead to lost tasktrackers if the NameNode is unresponsive. + (Devaraj Das via acmurthy) + + HADOOP-2026. Namenode prints out one log line for "Number of transactions" + at most once every minute. (Dhruba Borthakur) + + HADOOP-2022. Ensure that status information for successful tasks is correctly + recorded at the JobTracker, so that, for example, one may view correct + information via taskdetails.jsp. This bug was introduced by HADOOP-1874. + (Amar Kamat via acmurthy) + + HADOOP-2031. Correctly maintain the taskid which takes the TIP to + completion, failing which the case of lost tasktrackers isn't handled + properly i.e. the map TIP is incorrectly left marked as 'complete' and it + is never rescheduled elsewhere, leading to hung reduces. + (Devaraj Das via acmurthy) + + HADOOP-2018. The source datanode of a data transfer waits for + a response from the target datanode before closing the data stream. + (Hairong Kuang via dhruba) + + HADOOP-2023. Disable TestLocalDirAllocator on Windows. + (Hairong Kuang via nigel) + + HADOOP-2016. Ignore status-updates from FAILED/KILLED tasks at the + TaskTracker. This fixes a race-condition which caused the tasks to wrongly + remain in the RUNNING state even after being killed by the JobTracker and + thus handicap the cleanup of the task's output sub-directory. (acmurthy) + + HADOOP-1771. Fix a NullPointerException in streaming caused by an + IOException in MROutputThread. (lohit vijayarenu via nigel) + + HADOOP-2028. Fix distcp so that the log dir does not need to be + specified and the destination does not need to exist. + (Chris Douglas via nigel) + + HADOOP-2044. The namenode protects all lease manipulations using a + sortedLease lock. (Dhruba Borthakur) + + HADOOP-2051. The TaskCommit thread should not die for exceptions other + than the InterruptedException. This behavior is there for the other long + running threads in the JobTracker. (Arun C Murthy via ddas) + + HADOOP-1973. The FileSystem object would be accessed on the JobTracker + through a RPC in the InterTrackerProtocol. The check for the object being + null was missing and hence NPE would be thrown sometimes. This issue fixes + that problem. (Amareshwari Sri Ramadasu via ddas) + + HADOOP-2033. The SequenceFile.Writer.sync method was a no-op, which caused + very uneven splits for applications like distcp that count on them. + (omalley) + + HADOOP-2070. Added a flush method to pipes' DownwardProtocol and call + that before waiting for the application to finish to ensure all buffered + data is flushed. (Owen O'Malley via acmurthy) + + HADOOP-2080. Fixed calculation of the checksum file size when the values + are large. (omalley) + + HADOOP-2048. Change error handling in distcp so that each map copies + as much as possible before reporting the error. Also report progress on + every copy. (Chris Douglas via omalley) + + HADOOP-2073. Change size of VERSION file after writing contents to it. + (Konstantin Shvachko via dhruba) + + HADOOP-2102. Fix the deprecated ToolBase to pass its Configuration object + to the superceding ToolRunner to ensure it picks up the appropriate + configuration resources. (Dennis Kubes and Enis Soztutar via acmurthy) + + HADOOP-2103. Fix minor javadoc bugs introduce by HADOOP-2046. (Nigel + Daley via acmurthy) + + IMPROVEMENTS + + HADOOP-1908. Restructure data node code so that block sending and + receiving are seperated from data transfer header handling. + (Hairong Kuang via dhruba) + + HADOOP-1921. Save the configuration of completed/failed jobs and make them + available via the web-ui. (Amar Kamat via devaraj) + + HADOOP-1266. Remove dependency of package org.apache.hadoop.net on + org.apache.hadoop.dfs. (Hairong Kuang via dhruba) + + HADOOP-1779. Replace INodeDirectory.getINode() by a getExistingPathINodes() + to allow the retrieval of all existing INodes along a given path in a + single lookup. This facilitates removal of the 'parent' field in the + inode. (Christophe Taton via dhruba) + + HADOOP-1756. Add toString() to some Writable-s. (ab) + + HADOOP-1727. New classes: MapWritable and SortedMapWritable. + (Jim Kellerman via ab) + + HADOOP-1651. Improve progress reporting. + (Devaraj Das via tomwhite) + + HADOOP-1595. dfsshell can wait for a file to achieve its intended + replication target. (Tsz Wo (Nicholas), SZE via dhruba) + + HADOOP-1693. Remove un-needed log fields in DFS replication classes, + since the log may be accessed statically. (Konstantin Shvachko via cutting) + + HADOOP-1231. Add generics to Mapper and Reducer interfaces. + (tomwhite via cutting) + + HADOOP-1436. Improved command-line APIs, so that all tools need + not subclass ToolBase, and generic parameter parser is public. + (Enis Soztutar via cutting) + + HADOOP-1703. DFS-internal code cleanups, removing several uses of + the obsolete UTF8. (Christophe Taton via cutting) + + HADOOP-1731. Add Hadoop's version to contrib jar file names. + (cutting) + + HADOOP-1689. Make shell scripts more portable. All shell scripts + now explicitly depend on bash, but do not require that bash be + installed in a particular location, as long as it is on $PATH. + (cutting) + + HADOOP-1744. Remove many uses of the deprecated UTF8 class from + the HDFS namenode. (Christophe Taton via cutting) + + HADOOP-1654. Add IOUtils class, containing generic io-related + utility methods. (Enis Soztutar via cutting) + + HADOOP-1158. Change JobTracker to record map-output transmission + errors and use them to trigger speculative re-execution of tasks. + (Arun C Murthy via cutting) + + HADOOP-1601. Change GenericWritable to use ReflectionUtils for + instance creation, avoiding classloader issues, and to implement + Configurable. (Enis Soztutar via cutting) + + HADOOP-1750. Log standard output and standard error when forking + task processes. (omalley via cutting) + + HADOOP-1803. Generalize build.xml to make files in all + src/contrib/*/bin directories executable. (stack via cutting) + + HADOOP-1739. Let OS always choose the tasktracker's umbilical + port. Also switch default address for umbilical connections to + loopback. (cutting) + + HADOOP-1812. Let OS choose ports for IPC and RPC unit tests. (cutting) + + HADOOP-1825. Create $HADOOP_PID_DIR when it does not exist. + (Michael Bieniosek via cutting) + + HADOOP-1425. Replace uses of ToolBase with the Tool interface. + (Enis Soztutar via cutting) + + HADOOP-1569. Reimplement DistCP to use the standard FileSystem/URI + code in Hadoop so that you can copy from and to all of the supported file + systems.(Chris Douglas via omalley) + + HADOOP-1018. Improve documentation w.r.t handling of lost hearbeats between + TaskTrackers and JobTracker. (acmurthy) + + HADOOP-1718. Add ant targets for measuring code coverage with clover. + (simonwillnauer via nigel) + + HADOOP-1592. Log error messages to the client console when tasks + fail. (Amar Kamat via cutting) + + HADOOP-1879. Remove some unneeded casts. (Nilay Vaish via cutting) + + HADOOP-1878. Add space between priority links on job details + page. (Thomas Friol via cutting) + + HADOOP-120. In ArrayWritable, prevent creation with null value + class, and improve documentation. (Cameron Pope via cutting) + + HADOOP-1926. Add a random text writer example/benchmark so that we can + benchmark compression codecs on random data. (acmurthy via omalley) + + HADOOP-1906. Warn the user if they have an obsolete madred-default.xml + file in their configuration directory. (acmurthy via omalley) + + HADOOP-1971. Warn when job does not specify a jar. (enis via cutting) + + HADOOP-1942. Increase the concurrency of transaction logging to + edits log. Reduce the number of syncs by double-buffering the changes + to the transaction log. (Dhruba Borthakur) + + HADOOP-2046. Improve mapred javadoc. (Arun C. Murthy via cutting) + + HADOOP-2105. Improve overview.html to clarify supported platforms, + software pre-requisites for hadoop, how to install them on various + platforms and a better general description of hadoop and it's utility. + (Jim Kellerman via acmurthy) + + +Release 0.14.4 - 2007-11-26 + + BUG FIXES + + HADOOP-2140. Add missing Apache Licensing text at the front of several + C and C++ files. + + HADOOP-2169. Fix the DT_SONAME field of libhdfs.so to set it to the + correct value of 'libhdfs.so', currently it is set to the absolute path of + libhdfs.so. (acmurthy) + + HADOOP-2001. Make the job priority updates and job kills synchronized on + the JobTracker. Deadlock was seen in the JobTracker because of the lack of + this synchronization. (Arun C Murthy via ddas) + + +Release 0.14.3 - 2007-10-19 + + BUG FIXES + + HADOOP-2053. Fixed a dangling reference to a memory buffer in the map + output sorter. (acmurthy via omalley) + + HADOOP-2036. Fix a NullPointerException in JvmMetrics class. (nigel) + + HADOOP-2043. Release 0.14.2 was compiled with Java 1.6 rather than + Java 1.5. (cutting) + + +Release 0.14.2 - 2007-10-09 + + BUG FIXES + + HADOOP-1948. Removed spurious error message during block crc upgrade. + (Raghu Angadi via dhruba) + + HADOOP-1862. reduces are getting stuck trying to find map outputs. + (Arun C. Murthy via ddas) + + HADOOP-1977. Fixed handling of ToolBase cli options in JobClient. + (enis via omalley) + + HADOOP-1972. Fix LzoCompressor to ensure the user has actually asked + to finish compression. (arun via omalley) + + HADOOP-1970. Fix deadlock in progress reporting in the task. (Vivek + Ratan via omalley) + + HADOOP-1978. Name-node removes edits.new after a successful startup. + (Konstantin Shvachko via dhruba) + + HADOOP-1955. The Namenode tries to not pick the same source Datanode for + a replication request if the earlier replication request for the same + block and that source Datanode had failed. + (Raghu Angadi via dhruba) + + HADOOP-1961. The -get option to dfs-shell works when a single filename + is specified. (Raghu Angadi via dhruba) + + HADOOP-1997. TestCheckpoint closes the edits file after writing to it, + otherwise the rename of this file on Windows fails. + (Konstantin Shvachko via dhruba) + +Release 0.14.1 - 2007-09-04 + + BUG FIXES + + HADOOP-1740. Fix null pointer exception in sorting map outputs. (Devaraj + Das via omalley) + + HADOOP-1790. Fix tasktracker to work correctly on multi-homed + boxes. (Torsten Curdt via cutting) + + HADOOP-1798. Fix jobtracker to correctly account for failed + tasks. (omalley via cutting) + + +Release 0.14.0 - 2007-08-17 + + INCOMPATIBLE CHANGES + + 1. HADOOP-1134. + CONFIG/API - dfs.block.size must now be a multiple of + io.byte.per.checksum, otherwise new files can not be written. + LAYOUT - DFS layout version changed from -6 to -7, which will require an + upgrade from previous versions. + PROTOCOL - Datanode RPC protocol version changed from 7 to 8. + + 2. HADOOP-1283 + API - deprecated file locking API. + + 3. HADOOP-894 + PROTOCOL - changed ClientProtocol to fetch parts of block locations. + + 4. HADOOP-1336 + CONFIG - Enable speculative execution by default. + + 5. HADOOP-1197 + API - deprecated method for Configuration.getObject, because + Configurations should only contain strings. + + 6. HADOOP-1343 + API - deprecate Configuration.set(String,Object) so that only strings are + put in Configrations. + + 7. HADOOP-1207 + CLI - Fix FsShell 'rm' command to continue when a non-existent file is + encountered. + + 8. HADOOP-1473 + CLI/API - Job, TIP, and Task id formats have changed and are now unique + across job tracker restarts. + + 9. HADOOP-1400 + API - JobClient constructor now takes a JobConf object instead of a + Configuration object. + + NEW FEATURES and BUG FIXES + + 1. HADOOP-1197. In Configuration, deprecate getObject() and add + getRaw(), which skips variable expansion. (omalley via cutting) + + 2. HADOOP-1343. In Configuration, deprecate set(String,Object) and + implement Iterable. (omalley via cutting) + + 3. HADOOP-1344. Add RunningJob#getJobName(). (Michael Bieniosek via cutting) + + 4. HADOOP-1342. In aggregators, permit one to limit the number of + unique values per key. (Runping Qi via cutting) + + 5. HADOOP-1340. Set the replication factor of the MD5 file in the filecache + to be the same as the replication factor of the original file. + (Dhruba Borthakur via tomwhite.) + + 6. HADOOP-1355. Fix null pointer dereference in + TaskLogAppender.append(LoggingEvent). (Arun C Murthy via tomwhite.) + + 7. HADOOP-1357. Fix CopyFiles to correctly avoid removing "/". + (Arun C Murthy via cutting) + + 8. HADOOP-234. Add pipes facility, which permits writing MapReduce + programs in C++. + + 9. HADOOP-1359. Fix a potential NullPointerException in HDFS. + (Hairong Kuang via cutting) + + 10. HADOOP-1364. Fix inconsistent synchronization in SequenceFile. + (omalley via cutting) + + 11. HADOOP-1379. Add findbugs target to build.xml. + (Nigel Daley via cutting) + + 12. HADOOP-1364. Fix various inconsistent synchronization issues. + (Devaraj Das via cutting) + + 13. HADOOP-1393. Remove a potential unexpected negative number from + uses of random number generator. (omalley via cutting) + + 14. HADOOP-1387. A number of "performance" code-cleanups suggested + by findbugs. (Arun C Murthy via cutting) + + 15. HADOOP-1401. Add contrib/hbase javadoc to tree. (stack via cutting) + + 16. HADOOP-894. Change HDFS so that the client only retrieves a limited + number of block locations per request from the namenode. + (Konstantin Shvachko via cutting) + + 17. HADOOP-1406. Plug a leak in MapReduce's use of metrics. + (David Bowen via cutting) + + 18. HADOOP-1394. Implement "performance" code-cleanups in HDFS + suggested by findbugs. (Raghu Angadi via cutting) + + 19. HADOOP-1413. Add example program that uses Knuth's dancing links + algorithm to solve pentomino problems. (omalley via cutting) + + 20. HADOOP-1226. Change HDFS so that paths it returns are always + fully qualified. (Dhruba Borthakur via cutting) + + 21. HADOOP-800. Improvements to HDFS web-based file browser. + (Enis Soztutar via cutting) + + 22. HADOOP-1408. Fix a compiler warning by adding a class to replace + a generic. (omalley via cutting) + + 23. HADOOP-1376. Modify RandomWriter example so that it can generate + data for the Terasort benchmark. (Devaraj Das via cutting) + + 24. HADOOP-1429. Stop logging exceptions during normal IPC server + shutdown. (stack via cutting) + + 25. HADOOP-1461. Fix the synchronization of the task tracker to + avoid lockups in job cleanup. (Arun C Murthy via omalley) + + 26. HADOOP-1446. Update the TaskTracker metrics while the task is + running. (Devaraj via omalley) + + 27. HADOOP-1414. Fix a number of issues identified by FindBugs as + "Bad Practice". (Dhruba Borthakur via cutting) + + 28. HADOOP-1392. Fix "correctness" bugs identified by FindBugs in + fs and dfs packages. (Raghu Angadi via cutting) + + 29. HADOOP-1412. Fix "dodgy" bugs identified by FindBugs in fs and + io packages. (Hairong Kuang via cutting) + + 30. HADOOP-1261. Remove redundant events from HDFS namenode's edit + log when a datanode restarts. (Raghu Angadi via cutting) + + 31. HADOOP-1336. Re-enable speculative execution by + default. (omalley via cutting) + + 32. HADOOP-1311. Fix a bug in BytesWritable#set() where start offset + was ignored. (Dhruba Borthakur via cutting) + + 33. HADOOP-1450. Move checksumming closer to user code, so that + checksums are created before data is stored in large buffers and + verified after data is read from large buffers, to better catch + memory errors. (cutting) + + 34. HADOOP-1447. Add support in contrib/data_join for text inputs. + (Senthil Subramanian via cutting) + + 35. HADOOP-1456. Fix TestDecommission assertion failure by setting + the namenode to ignore the load on datanodes while allocating + replicas. (Dhruba Borthakur via tomwhite) + + 36. HADOOP-1396. Fix FileNotFoundException on DFS block. + (Dhruba Borthakur via tomwhite) + + 37. HADOOP-1467. Remove redundant counters from WordCount example. + (Owen O'Malley via tomwhite) + + 38. HADOOP-1139. Log HDFS block transitions at INFO level, to better + enable diagnosis of problems. (Dhruba Borthakur via cutting) + + 39. HADOOP-1269. Finer grained locking in HDFS namenode. + (Dhruba Borthakur via cutting) + + 40. HADOOP-1438. Improve HDFS documentation, correcting typos and + making images appear in PDF. Also update copyright date for all + docs. (Luke Nezda via cutting) + + 41. HADOOP-1457. Add counters for monitoring task assignments. + (Arun C Murthy via tomwhite) + + 42. HADOOP-1472. Fix so that timed-out tasks are counted as failures + rather than as killed. (Arun C Murthy via cutting) + + 43. HADOOP-1234. Fix a race condition in file cache that caused + tasktracker to not be able to find cached files. + (Arun C Murthy via cutting) + + 44. HADOOP-1482. Fix secondary namenode to roll info port. + (Dhruba Borthakur via cutting) + + 45. HADOOP-1300. Improve removal of excess block replicas to be + rack-aware. Attempts are now made to keep replicas on more + racks. (Hairong Kuang via cutting) + + 46. HADOOP-1417. Disable a few FindBugs checks that generate a lot + of spurious warnings. (Nigel Daley via cutting) + + 47. HADOOP-1320. Rewrite RandomWriter example to bypass reduce. + (Arun C Murthy via cutting) + + 48. HADOOP-1449. Add some examples to contrib/data_join. + (Senthil Subramanian via cutting) + + 49. HADOOP-1459. Fix so that, in HDFS, getFileCacheHints() returns + hostnames instead of IP addresses. (Dhruba Borthakur via cutting) + + 50. HADOOP-1493. Permit specification of "java.library.path" system + property in "mapred.child.java.opts" configuration property. + (Enis Soztutar via cutting) + + 51. HADOOP-1372. Use LocalDirAllocator for HDFS temporary block + files, so that disk space, writability, etc. is considered. + (Dhruba Borthakur via cutting) + + 52. HADOOP-1193. Pool allocation of compression codecs. This + eliminates a memory leak that could cause OutOfMemoryException, + and also substantially improves performance. + (Arun C Murthy via cutting) + + 53. HADOOP-1492. Fix a NullPointerException handling version + mismatch during datanode registration. + (Konstantin Shvachko via cutting) + + 54. HADOOP-1442. Fix handling of zero-length input splits. + (Senthil Subramanian via cutting) + + 55. HADOOP-1444. Fix HDFS block id generation to check pending + blocks for duplicates. (Dhruba Borthakur via cutting) + + 56. HADOOP-1207. Fix FsShell's 'rm' command to not stop when one of + the named files does not exist. (Tsz Wo Sze via cutting) + + 57. HADOOP-1475. Clear tasktracker's file cache before it + re-initializes, to avoid confusion. (omalley via cutting) + + 58. HADOOP-1505. Remove spurious stacktrace in ZlibFactory + introduced in HADOOP-1093. (Michael Stack via tomwhite) + + 59. HADOOP-1484. Permit one to kill jobs from the web ui. Note that + this is disabled by default. One must set + "webinterface.private.actions" to enable this. + (Enis Soztutar via cutting) + + 60. HADOOP-1003. Remove flushing of namenode edit log from primary + namenode lock, increasing namenode throughput. + (Dhruba Borthakur via cutting) + + 61. HADOOP-1023. Add links to searchable mail archives. + (tomwhite via cutting) + + 62. HADOOP-1504. Fix terminate-hadoop-cluster script in contrib/ec2 + to only terminate Hadoop instances, and not other instances + started by the same user. (tomwhite via cutting) + + 63. HADOOP-1462. Improve task progress reporting. Progress reports + are no longer blocking since i/o is performed in a separate + thread. Reporting during sorting and more is also more + consistent. (Vivek Ratan via cutting) + + 64. [ intentionally blank ] + + 65. HADOOP-1453. Remove some unneeded calls to FileSystem#exists() + when opening files, reducing the namenode load somewhat. + (Raghu Angadi via cutting) + + 66. HADOOP-1489. Fix text input truncation bug due to mark/reset. + Add a unittest. (Bwolen Yang via cutting) + + 67. HADOOP-1455. Permit specification of arbitrary job options on + pipes command line. (Devaraj Das via cutting) + + 68. HADOOP-1501. Better randomize sending of block reports to + namenode, so reduce load spikes. (Dhruba Borthakur via cutting) + + 69. HADOOP-1147. Remove @author tags from Java source files. + + 70. HADOOP-1283. Convert most uses of UTF8 in the namenode to be + String. (Konstantin Shvachko via cutting) + + 71. HADOOP-1511. Speedup hbase unit tests. (stack via cutting) + + 72. HADOOP-1517. Remove some synchronization in namenode to permit + finer grained locking previously added. (Konstantin Shvachko via cutting) + + 73. HADOOP-1512. Fix failing TestTextInputFormat on Windows. + (Senthil Subramanian via nigel) + + 74. HADOOP-1518. Add a session id to job metrics, for use by HOD. + (David Bowen via cutting) + + 75. HADOOP-1292. Change 'bin/hadoop fs -get' to first copy files to + a temporary name, then rename them to their final name, so that + failures don't leave partial files. (Tsz Wo Sze via cutting) + + 76. HADOOP-1377. Add support for modification time to FileSystem and + implement in HDFS and local implementations. Also, alter access + to file properties to be through a new FileStatus interface. + (Dhruba Borthakur via cutting) + + 77. HADOOP-1515. Add MultiFileInputFormat, which can pack multiple, + typically small, input files into each split. (Enis Soztutar via cutting) + + 78. HADOOP-1514. Make reducers report progress while waiting for map + outputs, so they're not killed. (Vivek Ratan via cutting) + + 79. HADOOP-1508. Add an Ant task for FsShell operations. Also add + new FsShell commands "touchz", "test" and "stat". + (Chris Douglas via cutting) + + 80. HADOOP-1028. Add log messages for server startup and shutdown. + (Tsz Wo Sze via cutting) + + 81. HADOOP-1485. Add metrics for monitoring shuffle. + (Devaraj Das via cutting) + + 82. HADOOP-1536. Remove file locks from libhdfs tests. + (Dhruba Borthakur via nigel) + + 83. HADOOP-1520. Add appropriate synchronization to FSEditsLog. + (Dhruba Borthakur via nigel) + + 84. HADOOP-1513. Fix a race condition in directory creation. + (Devaraj via omalley) + + 85. HADOOP-1546. Remove spurious column from HDFS web UI. + (Dhruba Borthakur via cutting) + + 86. HADOOP-1556. Make LocalJobRunner delete working files at end of + job run. (Devaraj Das via tomwhite) + + 87. HADOOP-1571. Add contrib lib directories to root build.xml + javadoc classpath. (Michael Stack via tomwhite) + + 88. HADOOP-1554. Log killed tasks to the job history and display them on the + web/ui. (Devaraj Das via omalley) + + 89. HADOOP-1533. Add persistent error logging for distcp. The logs are stored + into a specified hdfs directory. (Senthil Subramanian via omalley) + + 90. HADOOP-1286. Add support to HDFS for distributed upgrades, which + permits coordinated upgrade of datanode data. + (Konstantin Shvachko via cutting) + + 91. HADOOP-1580. Improve contrib/streaming so that subprocess exit + status is displayed for errors. (John Heidemann via cutting) + + 92. HADOOP-1448. In HDFS, randomize lists of non-local block + locations returned to client, so that load is better balanced. + (Hairong Kuang via cutting) + + 93. HADOOP-1578. Fix datanode to send its storage id to namenode + during registration. (Konstantin Shvachko via cutting) + + 94. HADOOP-1584. Fix a bug in GenericWritable which limited it to + 128 types instead of 256. (Espen Amble Kolstad via cutting) + + 95. HADOOP-1473. Make job ids unique across jobtracker restarts. + (omalley via cutting) + + 96. HADOOP-1582. Fix hdfslib to return 0 instead of -1 at + end-of-file, per C conventions. (Christian Kunz via cutting) + + 97. HADOOP-911. Fix a multithreading bug in libhdfs. + (Christian Kunz) + + 98. HADOOP-1486. Fix so that fatal exceptions in namenode cause it + to exit. (Dhruba Borthakur via cutting) + + 99. HADOOP-1470. Factor checksum generation and validation out of + ChecksumFileSystem so that it can be reused by FileSystem's with + built-in checksumming. (Hairong Kuang via cutting) + +100. HADOOP-1590. Use relative urls in jobtracker jsp pages, so that + webapp can be used in non-root contexts. (Thomas Friol via cutting) + +101. HADOOP-1596. Fix the parsing of taskids by streaming and improve the + error reporting. (omalley) + +102. HADOOP-1535. Fix the user-controlled grouping to the reduce function. + (Vivek Ratan via omalley) + +103. HADOOP-1585. Modify GenericWritable to declare the classes as subtypes + of Writable (Espen Amble Kolstad via omalley) + +104. HADOOP-1576. Fix errors in count of completed tasks when + speculative execution is enabled. (Arun C Murthy via cutting) + +105. HADOOP-1598. Fix license headers: adding missing; updating old. + (Enis Soztutar via cutting) + +106. HADOOP-1547. Provide examples for aggregate library. + (Runping Qi via tomwhite) + +107. HADOOP-1570. Permit jobs to enable and disable the use of + hadoop's native library. (Arun C Murthy via cutting) + +108. HADOOP-1433. Add job priority. (Johan Oskarsson via tomwhite) + +109. HADOOP-1597. Add status reports and post-upgrade options to HDFS + distributed upgrade. (Konstantin Shvachko via cutting) + +110. HADOOP-1524. Permit user task logs to appear as they're + created. (Michael Bieniosek via cutting) + +111. HADOOP-1599. Fix distcp bug on Windows. (Senthil Subramanian via cutting) + +112. HADOOP-1562. Add JVM metrics, including GC and logging stats. + (David Bowen via cutting) + +113. HADOOP-1613. Fix "DFS Health" page to display correct time of + last contact. (Dhruba Borthakur via cutting) + +114. HADOOP-1134. Add optimized checksum support to HDFS. Checksums + are now stored with each block, rather than as parallel files. + This reduces the namenode's memory requirements and increases + data integrity. (Raghu Angadi via cutting) + +115. HADOOP-1400. Make JobClient retry requests, so that clients can + survive jobtracker problems. (omalley via cutting) + +116. HADOOP-1564. Add unit tests for HDFS block-level checksums. + (Dhruba Borthakur via cutting) + +117. HADOOP-1620. Reduce the number of abstract FileSystem methods, + simplifying implementations. (cutting) + +118. HADOOP-1625. Fix a "could not move files" exception in datanode. + (Raghu Angadi via cutting) + +119. HADOOP-1624. Fix an infinite loop in datanode. (Raghu Angadi via cutting) + +120. HADOOP-1084. Switch mapred file cache to use file modification + time instead of checksum to detect file changes, as checksums are + no longer easily accessed. (Arun C Murthy via cutting) + +130. HADOOP-1623. Fix an infinite loop when copying directories. + (Dhruba Borthakur via cutting) + +131. HADOOP-1603. Fix a bug in namenode initialization where + default replication is sometimes reset to one on restart. + (Raghu Angadi via cutting) + +132. HADOOP-1635. Remove hardcoded keypair name and fix launch-hadoop-cluster + to support later versions of ec2-api-tools. (Stu Hood via tomwhite) + +133. HADOOP-1638. Fix contrib EC2 scripts to support NAT addressing. + (Stu Hood via tomwhite) + +134. HADOOP-1632. Fix an IllegalArgumentException in fsck. + (Hairong Kuang via cutting) + +135. HADOOP-1619. Fix FSInputChecker to not attempt to read past EOF. + (Hairong Kuang via cutting) + +136. HADOOP-1640. Fix TestDecommission on Windows. + (Dhruba Borthakur via cutting) + +137. HADOOP-1587. Fix TestSymLink to get required system properties. + (Devaraj Das via omalley) + +138. HADOOP-1628. Add block CRC protocol unit tests. (Raghu Angadi via omalley) + +139. HADOOP-1653. FSDirectory code-cleanups. FSDirectory.INode + becomes a static class. (Christophe Taton via dhruba) + +140. HADOOP-1066. Restructure documentation to make more user + friendly. (Connie Kleinjans and Jeff Hammerbacher via cutting) + +141. HADOOP-1551. libhdfs supports setting replication factor and + retrieving modification time of files. (Sameer Paranjpye via dhruba) + +141. HADOOP-1647. FileSystem.getFileStatus returns valid values for "/". + (Dhruba Borthakur via dhruba) + +142. HADOOP-1657. Fix NNBench to ensure that the block size is a + multiple of bytes.per.checksum. (Raghu Angadi via dhruba) + +143. HADOOP-1553. Replace user task output and log capture code to use shell + redirection instead of copier threads in the TaskTracker. Capping the + size of the output is now done via tail in memory and thus should not be + large. The output of the tasklog servlet is not forced into UTF8 and is + not buffered entirely in memory. (omalley) + Configuration changes to hadoop-default.xml: + remove mapred.userlog.num.splits + remove mapred.userlog.purge.splits + change default mapred.userlog.limit.kb to 0 (no limit) + change default mapred.userlog.retain.hours to 24 + Configuration changes to log4j.properties: + remove log4j.appender.TLA.noKeepSplits + remove log4j.appender.TLA.purgeLogSplits + remove log4j.appender.TLA.logsRetainHours + URL changes: + http://<tasktracker>/tasklog.jsp -> http://<tasktracker>tasklog with + parameters limited to start and end, which may be positive (from + start) or negative (from end). + Environment: + require bash (v2 or later) and tail + +144. HADOOP-1659. Fix a job id/job name mixup. (Arun C. Murthy via omalley) + +145. HADOOP-1665. With HDFS Trash enabled and the same file was created + and deleted more than once, the suceeding deletions creates Trash item + names suffixed with a integer. (Dhruba Borthakur via dhruba) + +146. HADOOP-1666. FsShell object can be used for multiple fs commands. + (Dhruba Borthakur via dhruba) + +147. HADOOP-1654. Remove performance regression introduced by Block CRC. + (Raghu Angadi via dhruba) + +148. HADOOP-1680. Improvements to Block CRC upgrade messages. + (Raghu Angadi via dhruba) + +149. HADOOP-71. Allow Text and SequenceFile Map/Reduce inputs from non-default + filesystems. (omalley) + +150. HADOOP-1568. Expose HDFS as xml/http filesystem to provide cross-version + compatability. (Chris Douglas via omalley) + +151. HADOOP-1668. Added an INCOMPATIBILITY section to CHANGES.txt. (nigel) + +152. HADOOP-1629. Added a upgrade test for HADOOP-1134. + (Raghu Angadi via nigel) + +153. HADOOP-1698. Fix performance problems on map output sorting for jobs + with large numbers of reduces. (Devaraj Das via omalley) + +154. HADOOP-1716. Fix a Pipes wordcount example to remove the 'file:' + schema from its output path. (omalley via cutting) + +155. HADOOP-1714. Fix TestDFSUpgradeFromImage to work on Windows. + (Raghu Angadi via nigel) + +156. HADOOP-1663. Return a non-zero exit code if streaming fails. (Lohit Renu + via omalley) + +157. HADOOP-1712. Fix an unhandled exception on datanode during block + CRC upgrade. (Raghu Angadi via cutting) + +158. HADOOP-1717. Fix TestDFSUpgradeFromImage to work on Solaris. + (nigel via cutting) + +159. HADOOP-1437. Add Eclipse plugin in contrib. + (Eugene Hung and Christophe Taton via cutting) + + +Release 0.13.0 - 2007-06-08 + + 1. HADOOP-1047. Fix TestReplication to succeed more reliably. + (Hairong Kuang via cutting) + + 2. HADOOP-1063. Fix a race condition in MiniDFSCluster test code. + (Hairong Kuang via cutting) + + 3. HADOOP-1101. In web ui, split shuffle statistics from reduce + statistics, and add some task averages. (Devaraj Das via cutting) + + 4. HADOOP-1071. Improve handling of protocol version mismatch in + JobTracker. (Tahir Hashmi via cutting) + + 5. HADOOP-1116. Increase heap size used for contrib unit tests. + (Philippe Gassmann via cutting) + + 6. HADOOP-1120. Add contrib/data_join, tools to simplify joining + data from multiple sources using MapReduce. (Runping Qi via cutting) + + 7. HADOOP-1064. Reduce log level of some DFSClient messages. + (Dhruba Borthakur via cutting) + + 8. HADOOP-1137. Fix StatusHttpServer to work correctly when + resources are in a jar file. (Benjamin Reed via cutting) + + 9. HADOOP-1094. Optimize generated Writable implementations for + records to not allocate a new BinaryOutputArchive or + BinaryInputArchive per call. (Milind Bhandarkar via cutting) + +10. HADOOP-1068. Improve error message for clusters with 0 datanodes. + (Dhruba Borthakur via tomwhite) + +11. HADOOP-1122. Fix divide-by-zero exception in FSNamesystem + chooseTarget method. (Dhruba Borthakur via tomwhite) + +12. HADOOP-1131. Add a closeAll() static method to FileSystem. + (Philippe Gassmann via tomwhite) + +13. HADOOP-1085. Improve port selection in HDFS and MapReduce test + code. Ports are now selected by the OS during testing rather than + by probing for free ports, improving test reliability. + (Arun C Murthy via cutting) + +14. HADOOP-1153. Fix HDFS daemons to correctly stop their threads. + (Konstantin Shvachko via cutting) + +15. HADOOP-1146. Add a counter for reduce input keys and rename the + "reduce input records" counter to be "reduce input groups". + (David Bowen via cutting) + +16. HADOOP-1165. In records, replace idential generated toString + methods with a method on the base class. (Milind Bhandarkar via cutting) + +17. HADOOP-1164. Fix TestReplicationPolicy to specify port zero, so + that a free port is automatically selected. (omalley via cutting) + +18. HADOOP-1166. Add a NullOutputFormat and use it in the + RandomWriter example. (omalley via cutting) + +19. HADOOP-1169. Fix a cut/paste error in CopyFiles utility so that + S3-based source files are correctly copied. (Michael Stack via cutting) + +20. HADOOP-1167. Remove extra synchronization in InMemoryFileSystem. + (omalley via cutting) + +21. HADOOP-1110. Fix an off-by-one error counting map inputs. + (David Bowen via cutting) + +22. HADOOP-1178. Fix a NullPointerException during namenode startup. + (Dhruba Borthakur via cutting) + +23. HADOOP-1011. Fix a ConcurrentModificationException when viewing + job history. (Tahir Hashmi via cutting) + +24. HADOOP-672. Improve help for fs shell commands. + (Dhruba Borthakur via cutting) + +25. HADOOP-1170. Improve datanode performance by removing device + checks from common operations. (Igor Bolotin via cutting) + +26. HADOOP-1090. Fix SortValidator's detection of whether the input + file belongs to the sort-input or sort-output directory. + (Arun C Murthy via tomwhite) + +27. HADOOP-1081. Fix bin/hadoop on Darwin. (Michael Bieniosek via cutting) + +28. HADOOP-1045. Add contrib/hbase, a BigTable-like online database. + (Jim Kellerman via cutting) + +29. HADOOP-1156. Fix a NullPointerException in MiniDFSCluster. + (Hairong Kuang via cutting) + +30. HADOOP-702. Add tools to help automate HDFS upgrades. + (Konstantin Shvachko via cutting) + +31. HADOOP-1163. Fix ganglia metrics to aggregate metrics from different + hosts properly. (Michael Bieniosek via tomwhite) + +32. HADOOP-1194. Make compression style record level for map output + compression. (Arun C Murthy via tomwhite) + +33. HADOOP-1187. Improve DFS Scalability: avoid scanning entire list of + datanodes in getAdditionalBlocks. (Dhruba Borthakur via tomwhite) + +34. HADOOP-1133. Add tool to analyze and debug namenode on a production + cluster. (Dhruba Borthakur via tomwhite) + +35. HADOOP-1151. Remove spurious printing to stderr in streaming + PipeMapRed. (Koji Noguchi via tomwhite) + +36. HADOOP-988. Change namenode to use a single map of blocks to metadata. + (Raghu Angadi via tomwhite) + +37. HADOOP-1203. Change UpgradeUtilities used by DFS tests to use + MiniDFSCluster to start and stop NameNode/DataNodes. + (Nigel Daley via tomwhite) + +38. HADOOP-1217. Add test.timeout property to build.xml, so that + long-running unit tests may be automatically terminated. + (Nigel Daley via cutting) + +39. HADOOP-1149. Improve DFS Scalability: make + processOverReplicatedBlock() a no-op if blocks are not + over-replicated. (Raghu Angadi via tomwhite) + +40. HADOOP-1149. Improve DFS Scalability: optimize getDistance(), + contains(), and isOnSameRack() in NetworkTopology. + (Hairong Kuang via tomwhite) + +41. HADOOP-1218. Make synchronization on TaskTracker's RunningJob + object consistent. (Devaraj Das via tomwhite) + +42. HADOOP-1219. Ignore progress report once a task has reported as + 'done'. (Devaraj Das via tomwhite) + +43. HADOOP-1114. Permit user to specify additional CLASSPATH elements + with a HADOOP_CLASSPATH environment variable. (cutting) + +44. HADOOP-1198. Remove ipc.client.timeout parameter override from + unit test configuration. Using the default is more robust and + has almost the same run time. (Arun C Murthy via tomwhite) + +45. HADOOP-1211. Remove deprecated constructor and unused static + members in DataNode class. (Konstantin Shvachko via tomwhite) + +46. HADOOP-1136. Fix ArrayIndexOutOfBoundsException in + FSNamesystem$UnderReplicatedBlocks add() method. + (Hairong Kuang via tomwhite) + +47. HADOOP-978. Add the client name and the address of the node that + previously started to create the file to the description of + AlreadyBeingCreatedException. (Konstantin Shvachko via tomwhite) + +48. HADOOP-1001. Check the type of keys and values generated by the + mapper against the types specified in JobConf. + (Tahir Hashmi via tomwhite) + +49. HADOOP-971. Improve DFS Scalability: Improve name node performance + by adding a hostname to datanodes map. (Hairong Kuang via tomwhite) + +50. HADOOP-1189. Fix 'No space left on device' exceptions on datanodes. + (Raghu Angadi via tomwhite) + +51. HADOOP-819. Change LineRecordWriter to not insert a tab between + key and value when either is null, and to print nothing when both + are null. (Runping Qi via cutting) + +52. HADOOP-1204. Rename InputFormatBase to be FileInputFormat, and + deprecate InputFormatBase. Also make LineRecordReader easier to + extend. (Runping Qi via cutting) + +53. HADOOP-1213. Improve logging of errors by IPC server, to + consistently include the service name and the call. (cutting) + +54. HADOOP-1238. Fix metrics reporting by TaskTracker to correctly + track maps_running and reduces_running. + (Michael Bieniosek via cutting) + +55. HADOOP-1093. Fix a race condition in HDFS where blocks were + sometimes erased before they were reported written. + (Dhruba Borthakur via cutting) + +56. HADOOP-1239. Add a package name to some testjar test classes. + (Jim Kellerman via cutting) + +57. HADOOP-1241. Fix NullPointerException in processReport when + namenode is restarted. (Dhruba Borthakur via tomwhite) + +58. HADOOP-1244. Fix stop-dfs.sh to no longer incorrectly specify + slaves file for stopping datanode. + (Michael Bieniosek via tomwhite) + +59. HADOOP-1253. Fix ConcurrentModificationException and + NullPointerException in JobControl. + (Johan Oskarson via tomwhite) + +60. HADOOP-1256. Fix NameNode so that multiple DataNodeDescriptors + can no longer be created on startup. (Hairong Kuang via cutting) + +61. HADOOP-1214. Replace streaming classes with new counterparts + from Hadoop core. (Runping Qi via tomwhite) + +62. HADOOP-1250. Move a chmod utility from streaming to FileUtil. + (omalley via cutting) + +63. HADOOP-1258. Fix TestCheckpoint test case to wait for + MiniDFSCluster to be active. (Nigel Daley via tomwhite) + +64. HADOOP-1148. Re-indent all Java source code to consistently use + two spaces per indent level. (cutting) + +65. HADOOP-1251. Add a method to Reporter to get the map InputSplit. + (omalley via cutting) + +66. HADOOP-1224. Fix "Browse the filesystem" link to no longer point + to dead datanodes. (Enis Soztutar via tomwhite) + +67. HADOOP-1154. Fail a streaming task if the threads reading from or + writing to the streaming process fail. (Koji Noguchi via tomwhite) + +68. HADOOP-968. Move shuffle and sort to run in reduce's child JVM, + rather than in TaskTracker. (Devaraj Das via cutting) + +69. HADOOP-1111. Add support for client notification of job + completion. If the job configuration has a job.end.notification.url + property it will make a HTTP GET request to the specified URL. + The number of retries and the interval between retries is also + configurable. (Alejandro Abdelnur via tomwhite) + +70. HADOOP-1275. Fix misspelled job notification property in + hadoop-default.xml. (Alejandro Abdelnur via tomwhite) + +71. HADOOP-1152. Fix race condition in MapOutputCopier.copyOutput file + rename causing possible reduce task hang. + (Tahir Hashmi via tomwhite) + +72. HADOOP-1050. Distinguish between failed and killed tasks so as to + not count a lost tasktracker against the job. + (Arun C Murthy via tomwhite) + +73. HADOOP-1271. Fix StreamBaseRecordReader to be able to log record + data that's not UTF-8. (Arun C Murthy via tomwhite) + +74. HADOOP-1190. Fix unchecked warnings in main Hadoop code. + (tomwhite) + +75. HADOOP-1127. Fix AlreadyBeingCreatedException in namenode for + jobs run with speculative execution. + (Arun C Murthy via tomwhite) + +76. HADOOP-1282. Omnibus HBase patch. Improved tests & configuration. + (Jim Kellerman via cutting) + +77. HADOOP-1262. Make dfs client try to read from a different replica + of the checksum file when a checksum error is detected. + (Hairong Kuang via tomwhite) + +78. HADOOP-1279. Fix JobTracker to maintain list of recently + completed jobs by order of completion, not submission. + (Arun C Murthy via cutting) + +79. HADOOP-1284. In contrib/streaming, permit flexible specification + of field delimiter and fields for partitioning and sorting. + (Runping Qi via cutting) + +80. HADOOP-1176. Fix a bug where reduce would hang when a map had + more than 2GB of output for it. (Arun C Murthy via cutting) + +81. HADOOP-1293. Fix contrib/streaming to print more than the first + twenty lines of standard error. (Koji Noguchi via cutting) + +82. HADOOP-1297. Fix datanode so that requests to remove blocks that + do not exist no longer causes block reports to be re-sent every + second. (Dhruba Borthakur via cutting) + +83. HADOOP-1216. Change MapReduce so that, when numReduceTasks is + zero, map outputs are written directly as final output, skipping + shuffle, sort and reduce. Use this to implement reduce=NONE + option in contrib/streaming. (Runping Qi via cutting) + +84. HADOOP-1294. Fix unchecked warnings in main Hadoop code under + Java 6. (tomwhite) + +85. HADOOP-1299. Fix so that RPC will restart after RPC.stopClient() + has been called. (Michael Stack via cutting) + +86. HADOOP-1278. Improve blacklisting of TaskTrackers by JobTracker, + to reduce false positives. (Arun C Murthy via cutting) + +87. HADOOP-1290. Move contrib/abacus into mapred/lib/aggregate. + (Runping Qi via cutting) + +88. HADOOP-1272. Extract inner classes from FSNamesystem into separate + classes. (Dhruba Borthakur via tomwhite) + +89. HADOOP-1247. Add support to contrib/streaming for aggregate + package, formerly called Abacus. (Runping Qi via cutting) + +90. HADOOP-1061. Fix bug in listing files in the S3 filesystem. + NOTE: this change is not backwards compatible! You should use the + MigrationTool supplied to migrate existing S3 filesystem data to + the new format. Please backup your data first before upgrading + (using 'hadoop distcp' for example). (tomwhite) + +91. HADOOP-1304. Make configurable the maximum number of task + attempts before a job fails. (Devaraj Das via cutting) + +92. HADOOP-1308. Use generics to restrict types when classes are + passed as parameters to JobConf methods. (Michael Bieniosek via cutting) + +93. HADOOP-1312. Fix a ConcurrentModificationException in NameNode + that killed the heartbeat monitoring thread. + (Dhruba Borthakur via cutting) + +94. HADOOP-1315. Clean up contrib/streaming, switching it to use core + classes more and removing unused code. (Runping Qi via cutting) + +95. HADOOP-485. Allow a different comparator for grouping keys in + calls to reduce. (Tahir Hashmi via cutting) + +96. HADOOP-1322. Fix TaskTracker blacklisting to work correctly in + one- and two-node clusters. (Arun C Murthy via cutting) + +97. HADOOP-1144. Permit one to specify a maximum percentage of tasks + that can fail before a job is aborted. The default is zero. + (Arun C Murthy via cutting) + +98. HADOOP-1184. Fix HDFS decomissioning to complete when the only + copy of a block is on a decommissioned node. (Dhruba Borthakur via cutting) + +99. HADOOP-1263. Change DFSClient to retry certain namenode calls + with a random, exponentially increasing backoff time, to avoid + overloading the namenode on, e.g., job start. (Hairong Kuang via cutting) + +100. HADOOP-1325. First complete, functioning version of HBase. + (Jim Kellerman via cutting) + +101. HADOOP-1276. Make tasktracker expiry interval configurable. + (Arun C Murthy via cutting) + +102. HADOOP-1326. Change JobClient#RunJob() to return the job. + (omalley via cutting) + +103. HADOOP-1270. Randomize the fetch of map outputs, speeding the + shuffle. (Arun C Murthy via cutting) + +104. HADOOP-1200. Restore disk checking lost in HADOOP-1170. + (Hairong Kuang via cutting) + +105. HADOOP-1252. Changed MapReduce's allocation of local files to + use round-robin among available devices, rather than a hashcode. + More care is also taken to not allocate files on full or offline + drives. (Devaraj Das via cutting) + +106. HADOOP-1324. Change so that an FSError kills only the task that + generates it rather than the entire task tracker. + (Arun C Murthy via cutting) + +107. HADOOP-1310. Fix unchecked warnings in aggregate code. (tomwhite) + +108. HADOOP-1255. Fix a bug where the namenode falls into an infinite + loop trying to remove a dead node. (Hairong Kuang via cutting) + +109. HADOOP-1160. Fix DistributedFileSystem.close() to close the + underlying FileSystem, correctly aborting files being written. + (Hairong Kuang via cutting) + +110. HADOOP-1341. Fix intermittent failures in HBase unit tests + caused by deadlock. (Jim Kellerman via cutting) + +111. HADOOP-1350. Fix shuffle performance problem caused by forcing + chunked encoding of map outputs. (Devaraj Das via cutting) + +112. HADOOP-1345. Fix HDFS to correctly retry another replica when a + checksum error is encountered. (Hairong Kuang via cutting) + +113. HADOOP-1205. Improve synchronization around HDFS block map. + (Hairong Kuang via cutting) + +114. HADOOP-1353. Fix a potential NullPointerException in namenode. + (Dhruba Borthakur via cutting) + +115. HADOOP-1354. Fix a potential NullPointerException in FsShell. + (Hairong Kuang via cutting) + +116. HADOOP-1358. Fix a potential bug when DFSClient calls skipBytes. + (Hairong Kuang via cutting) + +117. HADOOP-1356. Fix a bug in ValueHistogram. (Runping Qi via cutting) + +118. HADOOP-1363. Fix locking bug in JobClient#waitForCompletion(). + (omalley via cutting) + +119. HADOOP-1368. Fix inconsistent synchronization in JobInProgress. + (omalley via cutting) + +120. HADOOP-1369. Fix inconsistent synchronization in TaskTracker. + (omalley via cutting) + +121. HADOOP-1361. Fix various calls to skipBytes() to check return + value. (Hairong Kuang via cutting) + +122. HADOOP-1388. Fix a potential NullPointerException in web ui. + (Devaraj Das via cutting) + +123. HADOOP-1385. Fix MD5Hash#hashCode() to generally hash to more + than 256 values. (omalley via cutting) + +124. HADOOP-1386. Fix Path to not permit the empty string as a + path, as this has lead to accidental file deletion. Instead + force applications to use "." to name the default directory. + (Hairong Kuang via cutting) + +125. HADOOP-1407. Fix integer division bug in JobInProgress which + meant failed tasks didn't cause the job to fail. + (Arun C Murthy via tomwhite) + +126. HADOOP-1427. Fix a typo that caused GzipCodec to incorrectly use + a very small input buffer. (Espen Amble Kolstad via cutting) + +127. HADOOP-1435. Fix globbing code to no longer use the empty string + to indicate the default directory, per HADOOP-1386. + (Hairong Kuang via cutting) + +128. HADOOP-1411. Make task retry framework handle + AlreadyBeingCreatedException when wrapped as a RemoteException. + (Hairong Kuang via tomwhite) + +129. HADOOP-1242. Improve handling of DFS upgrades. + (Konstantin Shvachko via cutting) + +130. HADOOP-1332. Fix so that TaskTracker exits reliably during unit + tests on Windows. (omalley via cutting) + +131. HADOOP-1431. Fix so that sort progress reporting during map runs + only while sorting, so that stuck maps are correctly terminated. + (Devaraj Das and Arun C Murthy via cutting) + +132. HADOOP-1452. Change TaskTracker.MapOutputServlet.doGet.totalRead + to a long, permitting map outputs to exceed 2^31 bytes. + (omalley via cutting) + +133. HADOOP-1443. Fix a bug opening zero-length files in HDFS. + (Konstantin Shvachko via cutting) + + +Release 0.12.3 - 2007-04-06 + + 1. HADOOP-1162. Fix bug in record CSV and XML serialization of + binary values. (Milind Bhandarkar via cutting) + + 2. HADOOP-1123. Fix NullPointerException in LocalFileSystem when + trying to recover from a checksum error. + (Hairong Kuang & Nigel Daley via tomwhite) + + 3. HADOOP-1177. Fix bug where IOException in MapOutputLocation.getFile + was not being logged. (Devaraj Das via tomwhite) + + 4. HADOOP-1175. Fix bugs in JSP for displaying a task's log messages. + (Arun C Murthy via cutting) + + 5. HADOOP-1191. Fix map tasks to wait until sort progress thread has + stopped before reporting the task done. (Devaraj Das via cutting) + + 6. HADOOP-1192. Fix an integer overflow bug in FSShell's 'dus' + command and a performance problem in HDFS's implementation of it. + (Hairong Kuang via cutting) + + 7. HADOOP-1105. Fix reducers to make "progress" while iterating + through values. (Devaraj Das & Owen O'Malley via tomwhite) + + 8. HADOOP-1179. Make Task Tracker close index file as soon as the read + is done when serving get-map-output requests. + (Devaraj Das via tomwhite) + + +Release 0.12.2 - 2007-23-17 + + 1. HADOOP-1135. Fix bug in block report processing which may cause + the namenode to delete blocks. (Dhruba Borthakur via tomwhite) + + 2. HADOOP-1145. Make XML serializer and deserializer classes public + in record package. (Milind Bhandarkar via cutting) + + 3. HADOOP-1140. Fix a deadlock in metrics. (David Bowen via cutting) + + 4. HADOOP-1150. Fix streaming -reducer and -mapper to give them + defaults. (Owen O'Malley via tomwhite) + + +Release 0.12.1 - 2007-03-17 + + 1. HADOOP-1035. Fix a StackOverflowError in FSDataSet. + (Raghu Angadi via cutting) + + 2. HADOOP-1053. Fix VInt representation of negative values. Also + remove references in generated record code to methods outside of + the record package and improve some record documentation. + (Milind Bhandarkar via cutting) + + 3. HADOOP-1067. Compile fails if Checkstyle jar is present in lib + directory. Also remove dependency on a particular Checkstyle + version number. (tomwhite) + + 4. HADOOP-1060. Fix an IndexOutOfBoundsException in the JobTracker + that could cause jobs to hang. (Arun C Murthy via cutting) + + 5. HADOOP-1077. Fix a race condition fetching map outputs that could + hang reduces. (Devaraj Das via cutting) + + 6. HADOOP-1083. Fix so that when a cluster restarts with a missing + datanode, its blocks are replicated. (Hairong Kuang via cutting) + + 7. HADOOP-1082. Fix a NullPointerException in ChecksumFileSystem. + (Hairong Kuang via cutting) + + 8. HADOOP-1088. Fix record serialization of negative values. + (Milind Bhandarkar via cutting) + + 9. HADOOP-1080. Fix bug in bin/hadoop on Windows when native + libraries are present. (ab via cutting) + +10. HADOOP-1091. Fix a NullPointerException in MetricsRecord. + (David Bowen via tomwhite) + +11. HADOOP-1092. Fix a NullPointerException in HeartbeatMonitor + thread. (Hairong Kuang via tomwhite) + +12. HADOOP-1112. Fix a race condition in Hadoop metrics. + (David Bowen via tomwhite) + +13. HADOOP-1108. Checksummed file system should retry reading if a + different replica is found when handling ChecksumException. + (Hairong Kuang via tomwhite) + +14. HADOOP-1070. Fix a problem with number of racks and datanodes + temporarily doubling. (Konstantin Shvachko via tomwhite) + +15. HADOOP-1099. Fix NullPointerException in JobInProgress. + (Gautam Kowshik via tomwhite) + +16. HADOOP-1115. Fix bug where FsShell copyToLocal doesn't + copy directories. (Hairong Kuang via tomwhite) + +17. HADOOP-1109. Fix NullPointerException in StreamInputFormat. + (Koji Noguchi via tomwhite) + +18. HADOOP-1117. Fix DFS scalability: when the namenode is + restarted it consumes 80% CPU. (Dhruba Borthakur via + tomwhite) + +19. HADOOP-1089. Make the C++ version of write and read v-int + agree with the Java versions. (Milind Bhandarkar via + tomwhite) + +20. HADOOP-1096. Rename InputArchive and OutputArchive and + make them public. (Milind Bhandarkar via tomwhite) + +21. HADOOP-1128. Fix missing progress information in map tasks. + (Espen Amble Kolstad, Andrzej Bialecki, and Owen O'Malley + via tomwhite) + +22. HADOOP-1129. Fix DFSClient to not hide IOExceptions in + flush method. (Hairong Kuang via tomwhite) + +23. HADOOP-1126. Optimize CPU usage for under replicated blocks + when cluster restarts. (Hairong Kuang via tomwhite) + + +Release 0.12.0 - 2007-03-02 + + 1. HADOOP-975. Separate stdout and stderr from tasks. + (Arun C Murthy via cutting) + + 2. HADOOP-982. Add some setters and a toString() method to + BytesWritable. (omalley via cutting) + + 3. HADOOP-858. Move contrib/smallJobsBenchmark to src/test, removing + obsolete bits. (Nigel Daley via cutting) + + 4. HADOOP-992. Fix MiniMR unit tests to use MiniDFS when specified, + rather than the local FS. (omalley via cutting) + + 5. HADOOP-954. Change use of metrics to use callback mechanism. + Also rename utility class Metrics to MetricsUtil. + (David Bowen & Nigel Daley via cutting) + + 6. HADOOP-893. Improve HDFS client's handling of dead datanodes. + The set is no longer reset with each block, but rather is now + maintained for the life of an open file. (Raghu Angadi via cutting) + + 7. HADOOP-882. Upgrade to jets3t version 0.5, used by the S3 + FileSystem. This version supports retries. (Michael Stack via cutting) + + 8. HADOOP-977. Send task's stdout and stderr to JobClient's stdout + and stderr respectively, with each line tagged by the task's name. + (Arun C Murthy via cutting) + + 9. HADOOP-761. Change unit tests to not use /tmp. (Nigel Daley via cutting) + +10. HADOOP-1007. Make names of metrics used in Hadoop unique. + (Nigel Daley via cutting) + +11. HADOOP-491. Change mapred.task.timeout to be per-job, and make a + value of zero mean no timeout. Also change contrib/streaming to + disable task timeouts. (Arun C Murthy via cutting) + +12. HADOOP-1010. Add Reporter.NULL, a Reporter implementation that + does nothing. (Runping Qi via cutting) + +13. HADOOP-923. In HDFS NameNode, move replication computation to a + separate thread, to improve heartbeat processing time. + (Dhruba Borthakur via cutting) + +14. HADOOP-476. Rewrite contrib/streaming command-line processing, + improving parameter validation. (Sanjay Dahiya via cutting) + +15. HADOOP-973. Improve error messages in Namenode. This should help + to track down a problem that was appearing as a + NullPointerException. (Dhruba Borthakur via cutting) + +16. HADOOP-649. Fix so that jobs with no tasks are not lost. + (Thomas Friol via cutting) + +17. HADOOP-803. Reduce memory use by HDFS namenode, phase I. + (Raghu Angadi via cutting) + +18. HADOOP-1021. Fix MRCaching-based unit tests on Windows. + (Nigel Daley via cutting) + +19. HADOOP-889. Remove duplicate code from HDFS unit tests. + (Milind Bhandarkar via cutting) + +20. HADOOP-943. Improve HDFS's fsck command to display the filename + for under-replicated blocks. (Dhruba Borthakur via cutting) + +21. HADOOP-333. Add validator for sort benchmark output. + (Arun C Murthy via cutting) + +22. HADOOP-947. Improve performance of datanode decomissioning. + (Dhruba Borthakur via cutting) + +23. HADOOP-442. Permit one to specify hosts allowed to connect to + namenode and jobtracker with include and exclude files. (Wendy + Chien via cutting) + +24. HADOOP-1017. Cache constructors, for improved performance. + (Ron Bodkin via cutting) + +25. HADOOP-867. Move split creation out of JobTracker to client. + Splits are now saved in a separate file, read by task processes + directly, so that user code is no longer required in the + JobTracker. (omalley via cutting) + +26. HADOOP-1006. Remove obsolete '-local' option from test code. + (Gautam Kowshik via cutting) + +27. HADOOP-952. Create a public (shared) Hadoop EC2 AMI. + The EC2 scripts now support launch of public AMIs. + (tomwhite) + +28. HADOOP-1025. Remove some obsolete code in ipc.Server. (cutting) + +29. HADOOP-997. Implement S3 retry mechanism for failed block + transfers. This includes a generic retry mechanism for use + elsewhere in Hadoop. (tomwhite) + +30. HADOOP-990. Improve HDFS support for full datanode volumes. + (Raghu Angadi via cutting) + +31. HADOOP-564. Replace uses of "dfs://" URIs with the more standard + "hdfs://". (Wendy Chien via cutting) + +32. HADOOP-1030. In unit tests, unify setting of ipc.client.timeout. + Also increase the value used from one to two seconds, in hopes of + making tests complete more reliably. (cutting) + +33. HADOOP-654. Stop assigning tasks to a tasktracker if it has + failed more than a specified number in the job. + (Arun C Murthy via cutting) + +34. HADOOP-985. Change HDFS to identify nodes by IP address rather + than by DNS hostname. (Raghu Angadi via cutting) + +35. HADOOP-248. Optimize location of map outputs to not use random + probes. (Devaraj Das via cutting) + +36. HADOOP-1029. Fix streaming's input format to correctly seek to + the start of splits. (Arun C Murthy via cutting) + +37. HADOOP-492. Add per-job and per-task counters. These are + incremented via the Reporter interface and available through the + web ui and the JobClient API. The mapreduce framework maintains a + few basic counters, and applications may add their own. Counters + are also passed to the metrics system. + (David Bowen via cutting) + +38. HADOOP-1034. Fix datanode to better log exceptions. + (Philippe Gassmann via cutting) + +39. HADOOP-878. In contrib/streaming, fix reducer=NONE to work with + multiple maps. (Arun C Murthy via cutting) + +40. HADOOP-1039. In HDFS's TestCheckpoint, avoid restarting + MiniDFSCluster so often, speeding this test. (Dhruba Borthakur via cutting) + +41. HADOOP-1040. Update RandomWriter example to use counters and + user-defined input and output formats. (omalley via cutting) + +42. HADOOP-1027. Fix problems with in-memory merging during shuffle + and re-enable this optimization. (Devaraj Das via cutting) + +43. HADOOP-1036. Fix exception handling in TaskTracker to keep tasks + from being lost. (Arun C Murthy via cutting) + +44. HADOOP-1042. Improve the handling of failed map output fetches. + (Devaraj Das via cutting) + +45. HADOOP-928. Make checksums optional per FileSystem. + (Hairong Kuang via cutting) + +46. HADOOP-1044. Fix HDFS's TestDecommission to not spuriously fail. + (Wendy Chien via cutting) + +47. HADOOP-972. Optimize HDFS's rack-aware block placement algorithm. + (Hairong Kuang via cutting) + +48. HADOOP-1043. Optimize shuffle, increasing parallelism. + (Devaraj Das via cutting) + +49. HADOOP-940. Improve HDFS's replication scheduling. + (Dhruba Borthakur via cutting) + +50. HADOOP-1020. Fix a bug in Path resolution, and a with unit tests + on Windows. (cutting) + +51. HADOOP-941. Enhance record facility. + (Milind Bhandarkar via cutting) + +52. HADOOP-1000. Fix so that log messages in task subprocesses are + not written to a task's standard error. (Arun C Murthy via cutting) + +53. HADOOP-1037. Fix bin/slaves.sh, which currently only works with + /bin/bash, to specify /bin/bash rather than /bin/sh. (cutting) + +54. HADOOP-1046. Clean up tmp from partially received stale block files. (ab) + +55. HADOOP-1041. Optimize mapred counter implementation. Also group + counters by their declaring Enum. (David Bowen via cutting) + +56. HADOOP-1032. Permit one to specify jars that will be cached + across multiple jobs. (Gautam Kowshik via cutting) + +57. HADOOP-1051. Add optional checkstyle task to build.xml. To use + this developers must download the (LGPL'd) checkstyle jar + themselves. (tomwhite via cutting) + +58. HADOOP-1049. Fix a race condition in IPC client. + (Devaraj Das via cutting) + +60. HADOOP-1056. Check HDFS include/exclude node lists with both IP + address and hostname. (Wendy Chien via cutting) + +61. HADOOP-994. In HDFS, limit the number of blocks invalidated at + once. Large lists were causing datenodes to timeout. + (Dhruba Borthakur via cutting) + +62. HADOOP-432. Add a trash feature, disabled by default. When + enabled, the FSShell 'rm' command will move things to a trash + directory in the filesystem. In HDFS, a thread periodically + checkpoints the trash and removes old checkpoints. (cutting) + + +Release 0.11.2 - 2007-02-16 + + 1. HADOOP-1009. Fix an infinite loop in the HDFS namenode. + (Dhruba Borthakur via cutting) + + 2. HADOOP-1014. Disable in-memory merging during shuffle, as this is + causing data corruption. (Devaraj Das via cutting) + + +Release 0.11.1 - 2007-02-09 + + 1. HADOOP-976. Make SequenceFile.Metadata public. (Runping Qi via cutting) + + 2. HADOOP-917. Fix a NullPointerException in SequenceFile's merger + with large map outputs. (omalley via cutting) + + 3. HADOOP-984. Fix a bug in shuffle error handling introduced by + HADOOP-331. If a map output is unavailable, the job tracker is + once more informed. (Arun C Murthy via cutting) + + 4. HADOOP-987. Fix a problem in HDFS where blocks were not removed + from neededReplications after a replication target was selected. + (Hairong Kuang via cutting) + +Release 0.11.0 - 2007-02-02 + + 1. HADOOP-781. Remove methods deprecated in 0.10 that are no longer + widely used. (cutting) + + 2. HADOOP-842. Change HDFS protocol so that the open() method is + passed the client hostname, to permit the namenode to order block + locations on the basis of network topology. + (Hairong Kuang via cutting) + + 3. HADOOP-852. Add an ant task to compile record definitions, and + use it to compile record unit tests. (Milind Bhandarkar via cutting) + + 4. HADOOP-757. Fix "Bad File Descriptor" exception in HDFS client + when an output file is closed twice. (Raghu Angadi via cutting) + + 5. [ intentionally blank ] + + 6. HADOOP-890. Replace dashes in metric names with underscores, + for better compatibility with some monitoring systems. + (Nigel Daley via cutting) + + 7. HADOOP-801. Add to jobtracker a log of task completion events. + (Sanjay Dahiya via cutting) + + 8. HADOOP-855. In HDFS, try to repair files with checksum errors. + An exception is still thrown, but corrupt blocks are now removed + when they have replicas. (Wendy Chien via cutting) + + 9. HADOOP-886. Reduce number of timer threads created by metrics API + by pooling contexts. (Nigel Daley via cutting) + +10. HADOOP-897. Add a "javac.args" property to build.xml that permits + one to pass arbitrary options to javac. (Milind Bhandarkar via cutting) + +11. HADOOP-899. Update libhdfs for changes in HADOOP-871. + (Sameer Paranjpye via cutting) + +12. HADOOP-905. Remove some dead code from JobClient. (cutting) + +13. HADOOP-902. Fix a NullPointerException in HDFS client when + closing output streams. (Raghu Angadi via cutting) + +14. HADOOP-735. Switch generated record code to use BytesWritable to + represent fields of type 'buffer'. (Milind Bhandarkar via cutting) + +15. HADOOP-830. Improve mapreduce merge performance by buffering and + merging multiple map outputs as they arrive at reduce nodes before + they're written to disk. (Devaraj Das via cutting) + +16. HADOOP-908. Add a new contrib package, Abacus, that simplifies + counting and aggregation, built on MapReduce. (Runping Qi via cutting) + +17. HADOOP-901. Add support for recursive renaming to the S3 filesystem. + (Tom White via cutting) + +18. HADOOP-912. Fix a bug in TaskTracker.isIdle() that was + sporadically causing unit test failures. (Arun C Murthy via cutting) + +19. HADOOP-909. Fix the 'du' command to correctly compute the size of + FileSystem directory trees. (Hairong Kuang via cutting) + +20. HADOOP-731. When a checksum error is encountered on a file stored + in HDFS, try another replica of the data, if any. + (Wendy Chien via cutting) + +21. HADOOP-732. Add support to SequenceFile for arbitrary metadata, + as a set of attribute value pairs. (Runping Qi via cutting) + +22. HADOOP-929. Fix PhasedFileSystem to pass configuration to + underlying FileSystem. (Sanjay Dahiya via cutting) + +23. HADOOP-935. Fix contrib/abacus to not delete pre-existing output + files, but rather to fail in this case. (Runping Qi via cutting) + +24. HADOOP-936. More metric renamings, as in HADOOP-890. + (Nigel Daley via cutting) + +25. HADOOP-856. Fix HDFS's fsck command to not report that + non-existent filesystems are healthy. (Milind Bhandarkar via cutting) + +26. HADOOP-602. Remove the dependency on Lucene's PriorityQueue + utility, by copying it into Hadoop. This facilitates using Hadoop + with different versions of Lucene without worrying about CLASSPATH + order. (Milind Bhandarkar via cutting) + +27. [ intentionally blank ] + +28. HADOOP-227. Add support for backup namenodes, which periodically + get snapshots of the namenode state. (Dhruba Borthakur via cutting) + +29. HADOOP-884. Add scripts in contrib/ec2 to facilitate running + Hadoop on an Amazon's EC2 cluster. (Tom White via cutting) + +30. HADOOP-937. Change the namenode to request re-registration of + datanodes in more circumstances. (Hairong Kuang via cutting) + +31. HADOOP-922. Optimize small forward seeks in HDFS. If data is has + likely already in flight, skip ahead rather than re-opening the + block. (Dhruba Borthakur via cutting) + +32. HADOOP-961. Add a 'job -events' sub-command that prints job + events, including task completions and failures. (omalley via cutting) + +33. HADOOP-959. Fix namenode snapshot code added in HADOOP-227 to + work on Windows. (Dhruba Borthakur via cutting) + +34. HADOOP-934. Fix TaskTracker to catch metrics exceptions that were + causing heartbeats to fail. (Arun Murthy via cutting) + +35. HADOOP-881. Fix JobTracker web interface to display the correct + number of task failures. (Sanjay Dahiya via cutting) + +36. HADOOP-788. Change contrib/streaming to subclass TextInputFormat, + permitting it to take advantage of native compression facilities. + (Sanjay Dahiya via cutting) + +37. HADOOP-962. In contrib/ec2: make scripts executable in tar file; + add a README; make the environment file use a template. + (Tom White via cutting) + +38. HADOOP-549. Fix a NullPointerException in TaskReport's + serialization. (omalley via cutting) + +39. HADOOP-963. Fix remote exceptions to have the stack trace of the + caller thread, not the IPC listener thread. (omalley via cutting) + +40. HADOOP-967. Change RPC clients to start sending a version header. + (omalley via cutting) + +41. HADOOP-964. Fix a bug introduced by HADOOP-830 where jobs failed + whose comparators and/or i/o types were in the job's jar. + (Dennis Kubes via cutting) + +42. HADOOP-969. Fix a deadlock in JobTracker. (omalley via cutting) + +43. HADOOP-862. Add support for the S3 FileSystem to the CopyFiles + tool. (Michael Stack via cutting) + +44. HADOOP-965. Fix IsolationRunner so that job's jar can be found. + (Dennis Kubes via cutting) + +45. HADOOP-309. Fix two NullPointerExceptions in StatusHttpServer. + (navychen via cutting) + +46. HADOOP-692. Add rack awareness to HDFS's placement of blocks. + (Hairong Kuang via cutting) + + +Release 0.10.1 - 2007-01-10 + + 1. HADOOP-857. Fix S3 FileSystem implementation to permit its use + for MapReduce input and output. (Tom White via cutting) + + 2. HADOOP-863. Reduce logging verbosity introduced by HADOOP-813. + (Devaraj Das via cutting) + + 3. HADOOP-815. Fix memory leaks in JobTracker. (Arun C Murthy via cutting) + + 4. HADOOP-600. Fix a race condition in JobTracker. + (Arun C Murthy via cutting) + + 5. HADOOP-864. Fix 'bin/hadoop -jar' to operate correctly when + hadoop.tmp.dir does not yet exist. (omalley via cutting) + + 6. HADOOP-866. Fix 'dfs -get' command to remove existing crc files, + if any. (Milind Bhandarkar via cutting) + + 7. HADOOP-871. Fix a bug in bin/hadoop setting JAVA_LIBRARY_PATH. + (Arun C Murthy via cutting) + + 8. HADOOP-868. Decrease the number of open files during map, + respecting io.sort.fa ctor. (Devaraj Das via cutting) + + 9. HADOOP-865. Fix S3 FileSystem so that partially created files can + be deleted. (Tom White via cutting) + +10. HADOOP-873. Pass java.library.path correctly to child processes. + (omalley via cutting) + +11. HADOOP-851. Add support for the LZO codec. This is much faster + than the default, zlib-based compression, but it is only available + when the native library is built. (Arun C Murthy via cutting) + +12. HADOOP-880. Fix S3 FileSystem to remove directories. + (Tom White via cutting) + +13. HADOOP-879. Fix InputFormatBase to handle output generated by + MapFileOutputFormat. (cutting) + +14. HADOOP-659. In HDFS, prioritize replication of blocks based on + current replication level. Blocks which are severely + under-replicated should be further replicated before blocks which + are less under-replicated. (Hairong Kuang via cutting) + +15. HADOOP-726. Deprecate FileSystem locking methods. They are not + currently usable. Locking should eventually provided as an + independent service. (Raghu Angadi via cutting) + +16. HADOOP-758. Fix exception handling during reduce so that root + exceptions are not masked by exceptions in cleanups. + (Raghu Angadi via cutting) + + +Release 0.10.0 - 2007-01-05 + + 1. HADOOP-763. Change DFS namenode benchmark to not use MapReduce. + (Nigel Daley via cutting) + + 2. HADOOP-777. Use fully-qualified hostnames for tasktrackers and + datanodes. (Mahadev Konar via cutting) + + 3. HADOOP-621. Change 'dfs -cat' to exit sooner when output has been + closed. (Dhruba Borthakur via cutting) + + 4. HADOOP-752. Rationalize some synchronization in DFS namenode. + (Dhruba Borthakur via cutting) + + 5. HADOOP-629. Fix RPC services to better check the protocol name and + version. (omalley via cutting) + + 6. HADOOP-774. Limit the number of invalid blocks returned with + heartbeats by the namenode to datanodes. Transmitting and + processing very large invalid block lists can tie up both the + namenode and datanode for too long. (Dhruba Borthakur via cutting) + + 7. HADOOP-738. Change 'dfs -get' command to not create CRC files by + default, adding a -crc option to force their creation. + (Milind Bhandarkar via cutting) + + 8. HADOOP-676. Improved exceptions and error messages for common job + input specification errors. (Sanjay Dahiya via cutting) + + 9. [Included in 0.9.2 release] + +10. HADOOP-756. Add new dfsadmin option to wait for filesystem to be + operational. (Dhruba Borthakur via cutting) + +11. HADOOP-770. Fix jobtracker web interface to display, on restart, + jobs that were running when it was last stopped. + (Sanjay Dahiya via cutting) + +12. HADOOP-331. Write all map outputs to a single file with an index, + rather than to a separate file per reduce task. This should both + speed the shuffle and make things more scalable. + (Devaraj Das via cutting) + +13. HADOOP-818. Fix contrib unit tests to not depend on core unit + tests. (omalley via cutting) + +14. HADOOP-786. Log common exception at debug level. + (Sanjay Dahiya via cutting) + +15. HADOOP-796. Provide more convenient access to failed task + information in the web interface. (Sanjay Dahiya via cutting) + +16. HADOOP-764. Reduce memory allocations in namenode some. + (Dhruba Borthakur via cutting) + +17. HADOOP-802. Update description of mapred.speculative.execution to + mention reduces. (Nigel Daley via cutting) + +18. HADOOP-806. Include link to datanodes on front page of namenode + web interface. (Raghu Angadi via cutting) + +19. HADOOP-618. Make JobSubmissionProtocol public. + (Arun C Murthy via cutting) + +20. HADOOP-782. Fully remove killed tasks. (Arun C Murthy via cutting) + +21. HADOOP-792. Fix 'dfs -mv' to return correct status. + (Dhruba Borthakur via cutting) + +22. HADOOP-673. Give each task its own working directory again. + (Mahadev Konar via cutting) + +23. HADOOP-571. Extend the syntax of Path to be a URI; to be + optionally qualified with a scheme and authority. The scheme + determines the FileSystem implementation, while the authority + determines the FileSystem instance. New FileSystem + implementations may be provided by defining an fs.<scheme>.impl + property, naming the FileSystem implementation class. This + permits easy integration of new FileSystem implementations. + (cutting) + +24. HADOOP-720. Add an HDFS white paper to website. + (Dhruba Borthakur via cutting) + +25. HADOOP-794. Fix a divide-by-zero exception when a job specifies + zero map tasks. (omalley via cutting) + +26. HADOOP-454. Add a 'dfs -dus' command that provides summary disk + usage. (Hairong Kuang via cutting) + +27. HADOOP-574. Add an Amazon S3 implementation of FileSystem. To + use this, one need only specify paths of the form + s3://id:secret@bucket/. Alternately, the AWS access key id and + secret can be specified in your config, with the properties + fs.s3.awsAccessKeyId and fs.s3.awsSecretAccessKey. + (Tom White via cutting) + +28. HADOOP-824. Rename DFSShell to be FsShell, since it applies + generically to all FileSystem implementations. (cutting) + +29. HADOOP-813. Fix map output sorting to report progress, so that + sorts which take longer than the task timeout do not fail. + (Devaraj Das via cutting) + +30. HADOOP-825. Fix HDFS daemons when configured with new URI syntax. + (omalley via cutting) + +31. HADOOP-596. Fix a bug in phase reporting during reduce. + (Sanjay Dahiya via cutting) + +32. HADOOP-811. Add a utility, MultithreadedMapRunner. + (Alejandro Abdelnur via cutting) + +33. HADOOP-829. Within HDFS, clearly separate three different + representations for datanodes: one for RPCs, one for + namenode-internal use, and one for namespace persistence. + (Dhruba Borthakur via cutting) + +34. HADOOP-823. Fix problem starting datanode when not all configured + data directories exist. (Bryan Pendleton via cutting) + +35. HADOOP-451. Add a Split interface. CAUTION: This incompatibly + changes the InputFormat and RecordReader interfaces. Not only is + FileSplit replaced with Split, but a FileSystem parameter is no + longer passed in several methods, input validation has changed, + etc. (omalley via cutting) + +36. HADOOP-814. Optimize locking in namenode. (Dhruba Borthakur via cutting) + +37. HADOOP-738. Change 'fs -put' and 'fs -get' commands to accept + standard input and output, respectively. Standard i/o is + specified by a file named '-'. (Wendy Chien via cutting) + +38. HADOOP-835. Fix a NullPointerException reading record-compressed + SequenceFiles. (Hairong Kuang via cutting) + +39. HADOOP-836. Fix a MapReduce bug on Windows, where the wrong + FileSystem was used. Also add a static FileSystem.getLocal() + method and better Path checking in HDFS, to help avoid such issues + in the future. (omalley via cutting) + +40. HADOOP-837. Improve RunJar utility to unpack jar file + hadoop.tmp.dir, rather than the system temporary directory. + (Hairong Kuang via cutting) + +41. HADOOP-841. Fix native library to build 32-bit version even when + on a 64-bit host, if a 32-bit JVM is used. (Arun C Murthy via cutting) + +42. HADOOP-838. Fix tasktracker to pass java.library.path to + sub-processes, so that libhadoop.a is found. + (Arun C Murthy via cutting) + +43. HADOOP-844. Send metrics messages on a fixed-delay schedule + instead of a fixed-rate schedule. (David Bowen via cutting) + +44. HADOOP-849. Fix OutOfMemory exceptions in TaskTracker due to a + file handle leak in SequenceFile. (Devaraj Das via cutting) + +45. HADOOP-745. Fix a synchronization bug in the HDFS namenode. + (Dhruba Borthakur via cutting) + +46. HADOOP-850. Add Writable implementations for variable-length + integers. (ab via cutting) + +47. HADOOP-525. Add raw comparators to record types. This greatly + improves record sort performance. (Milind Bhandarkar via cutting) + +48. HADOOP-628. Fix a problem with 'fs -cat' command, where some + characters were replaced with question marks. (Wendy Chien via cutting) + +49. HADOOP-804. Reduce verbosity of MapReduce logging. + (Sanjay Dahiya via cutting) + +50. HADOOP-853. Rename 'site' to 'docs', in preparation for inclusion + in releases. (cutting) + +51. HADOOP-371. Include contrib jars and site documentation in + distributions. Also add contrib and example documentation to + distributed javadoc, in separate sections. (Nigel Daley via cutting) + +52. HADOOP-846. Report progress during entire map, as sorting of + intermediate outputs may happen at any time, potentially causing + task timeouts. (Devaraj Das via cutting) + +53. HADOOP-840. In task tracker, queue task cleanups and perform them + in a separate thread. (omalley & Mahadev Konar via cutting) + +54. HADOOP-681. Add to HDFS the ability to decommission nodes. This + causes their blocks to be re-replicated on other nodes, so that + they may be removed from a cluster. (Dhruba Borthakur via cutting) + +55. HADOOP-470. In HDFS web ui, list the datanodes containing each + copy of a block. (Hairong Kuang via cutting) + +56. HADOOP-700. Change bin/hadoop to only include core jar file on + classpath, not example, test, etc. Also rename core jar to + hadoop-${version}-core.jar so that it can be more easily + identified. (Nigel Daley via cutting) + +57. HADOOP-619. Extend InputFormatBase to accept individual files and + glob patterns as MapReduce inputs, not just directories. Also + change contrib/streaming to use this. (Sanjay Dahia via cutting) + + +Release 0.9.2 - 2006-12-15 + + 1. HADOOP-639. Restructure InterTrackerProtocol to make task + accounting more reliable. (Arun C Murthy via cutting) + + 2. HADOOP-827. Turn off speculative execution by default, since it's + currently broken. (omalley via cutting) + + 3. HADOOP-791. Fix a deadlock in the task tracker. + (Mahadev Konar via cutting) + + +Release 0.9.1 - 2006-12-06 + + 1. HADOOP-780. Use ReflectionUtils to instantiate key and value + objects. (ab) + + 2. HADOOP-779. Fix contrib/streaming to work correctly with gzipped + input files. (Hairong Kuang via cutting) + + +Release 0.9.0 - 2006-12-01 + + 1. HADOOP-655. Remove most deprecated code. A few deprecated things + remain, notably UTF8 and some methods that are still required. + Also cleaned up constructors for SequenceFile, MapFile, SetFile, + and ArrayFile a bit. (cutting) + + 2. HADOOP-565. Upgrade to Jetty version 6. (Sanjay Dahiya via cutting) + + 3. HADOOP-682. Fix DFS format command to work correctly when + configured with a non-existent directory. (Sanjay Dahiya via cutting) + + 4. HADOOP-645. Fix a bug in contrib/streaming when -reducer is NONE. + (Dhruba Borthakur via cutting) + + 5. HADOOP-687. Fix a classpath bug in bin/hadoop that blocked the + servers from starting. (Sameer Paranjpye via omalley) + + 6. HADOOP-683. Remove a script dependency on bash, so it works with + dash, the new default for /bin/sh on Ubuntu. (James Todd via cutting) + + 7. HADOOP-382. Extend unit tests to run multiple datanodes. + (Milind Bhandarkar via cutting) + + 8. HADOOP-604. Fix some synchronization issues and a + NullPointerException in DFS datanode. (Raghu Angadi via cutting) + + 9. HADOOP-459. Fix memory leaks and a host of other issues with + libhdfs. (Sameer Paranjpye via cutting) + +10. HADOOP-694. Fix a NullPointerException in jobtracker. + (Mahadev Konar via cutting) + +11. HADOOP-637. Fix a memory leak in the IPC server. Direct buffers + are not collected like normal buffers, and provided little + advantage. (Raghu Angadi via cutting) + +12. HADOOP-696. Fix TestTextInputFormat unit test to not rely on the + order of directory listings. (Sameer Paranjpye via cutting) + +13. HADOOP-611. Add support for iterator-based merging to + SequenceFile. (Devaraj Das via cutting) + +14. HADOOP-688. Move DFS administrative commands to a separate + command named 'dfsadmin'. (Dhruba Borthakur via cutting) + +15. HADOOP-708. Fix test-libhdfs to return the correct status, so + that failures will break the build. (Nigel Daley via cutting) + +16. HADOOP-646. Fix namenode to handle edits files larger than 2GB. + (Milind Bhandarkar via cutting) + +17. HADOOP-705. Fix a bug in the JobTracker when failed jobs were + not completely cleaned up. (Mahadev Konar via cutting) + +18. HADOOP-613. Perform final merge while reducing. This removes one + sort pass over the data and should consequently significantly + decrease overall processing time. (Devaraj Das via cutting) + +19. HADOOP-661. Make each job's configuration visible through the web + ui. (Arun C Murthy via cutting) + +20. HADOOP-489. In MapReduce, separate user logs from system logs. + Each task's log output is now available through the web ui. (Arun + C Murthy via cutting) + +21. HADOOP-712. Fix record io's xml serialization to correctly handle + control-characters. (Milind Bhandarkar via cutting) + +22. HADOOP-668. Improvements to the web-based DFS browser. + (Hairong Kuang via cutting) + +23. HADOOP-715. Fix build.xml so that test logs are written in build + directory, rather than in CWD. (Arun C Murthy via cutting) + +24. HADOOP-538. Add support for building an optional native library, + libhadoop.so, that improves the performance of zlib-based + compression. To build this, specify -Dcompile.native to Ant. + (Arun C Murthy via cutting) + +25. HADOOP-610. Fix an problem when the DFS block size is configured + to be smaller than the buffer size, typically only when debugging. + (Milind Bhandarkar via cutting) + +26. HADOOP-695. Fix a NullPointerException in contrib/streaming. + (Hairong Kuang via cutting) + +27. HADOOP-652. In DFS, when a file is deleted, the block count is + now decremented. (Vladimir Krokhmalyov via cutting) + +28. HADOOP-725. In DFS, optimize block placement algorithm, + previously a performance bottleneck. (Milind Bhandarkar via cutting) + +29. HADOOP-723. In MapReduce, fix a race condition during the + shuffle, which resulted in FileNotFoundExceptions. (omalley via cutting) + +30. HADOOP-447. In DFS, fix getBlockSize(Path) to work with relative + paths. (Raghu Angadi via cutting) + +31. HADOOP-733. Make exit codes in DFShell consistent and add a unit + test. (Dhruba Borthakur via cutting) + +32. HADOOP-709. Fix contrib/streaming to work with commands that + contain control characters. (Dhruba Borthakur via cutting) + +33. HADOOP-677. In IPC, permit a version header to be transmitted + when connections are established. This will permit us to change + the format of IPC requests back-compatibly in subsequent releases. + (omalley via cutting) + +34. HADOOP-699. Fix DFS web interface so that filesystem browsing + works correctly, using the right port number. Also add support + for sorting datanode list by various columns. + (Raghu Angadi via cutting) + +35. HADOOP-76. Implement speculative reduce. Now when a job is + configured for speculative execution, both maps and reduces will + execute speculatively. Reduce outputs are written to temporary + location and moved to the final location when reduce is complete. + (Sanjay Dahiya via cutting) + +36. HADOOP-736. Roll back to Jetty 5.1.4, due to performance problems + with Jetty 6.0.1. + +37. HADOOP-739. Fix TestIPC to use different port number, making it + more reliable. (Nigel Daley via cutting) + +38. HADOOP-749. Fix a NullPointerException in jobfailures.jsp. + (omalley via cutting) + +39. HADOOP-747. Fix record serialization to work correctly when + records are embedded in Maps. (Milind Bhandarkar via cutting) + +40. HADOOP-698. Fix HDFS client not to retry the same datanode on + read failures. (Milind Bhandarkar via cutting) + +41. HADOOP-689. Add GenericWritable, to facilitate polymorphism in + MapReduce, SequenceFile, etc. (Feng Jiang via cutting) + +42. HADOOP-430. Stop datanode's HTTP server when registration with + namenode fails. (Wendy Chien via cutting) + +43. HADOOP-750. Fix a potential race condition during mapreduce + shuffle. (omalley via cutting) + +44. HADOOP-728. Fix contrib/streaming-related issues, including + '-reducer NONE'. (Sanjay Dahiya via cutting) + + +Release 0.8.0 - 2006-11-03 + + 1. HADOOP-477. Extend contrib/streaming to scan the PATH environment + variables when resolving executable program names. + (Dhruba Borthakur via cutting) + + 2. HADOOP-583. In DFSClient, reduce the log level of re-connect + attempts from 'info' to 'debug', so they are not normally shown. + (Konstantin Shvachko via cutting) + + 3. HADOOP-498. Re-implement DFS integrity checker to run server-side, + for much improved performance. (Milind Bhandarkar via cutting) + + 4. HADOOP-586. Use the jar name for otherwise un-named jobs. + (Sanjay Dahiya via cutting) + + 5. HADOOP-514. Make DFS heartbeat interval configurable. + (Milind Bhandarkar via cutting) + + 6. HADOOP-588. Fix logging and accounting of failed tasks. + (Sanjay Dahiya via cutting) + + 7. HADOOP-462. Improve command line parsing in DFSShell, so that + incorrect numbers of arguments result in informative errors rather + than ArrayOutOfBoundsException. (Dhruba Borthakur via cutting) + + 8. HADOOP-561. Fix DFS so that one replica of each block is written + locally, if possible. This was the intent, but there as a bug. + (Dhruba Borthakur via cutting) + + 9. HADOOP-610. Fix TaskTracker to survive more exceptions, keeping + tasks from becoming lost. (omalley via cutting) + +10. HADOOP-625. Add a servlet to all http daemons that displays a + stack dump, useful for debugging. (omalley via cutting) + +11. HADOOP-554. Fix DFSShell to return -1 for errors. + (Dhruba Borthakur via cutting) + +12. HADOOP-626. Correct the documentation in the NNBench example + code, and also remove a mistaken call there. + (Nigel Daley via cutting) + +13. HADOOP-634. Add missing license to many files. + (Nigel Daley via cutting) + +14. HADOOP-627. Fix some synchronization problems in MiniMRCluster + that sometimes caused unit tests to fail. (Nigel Daley via cutting) + +15. HADOOP-563. Improve the NameNode's lease policy so that leases + are held for one hour without renewal (instead of one minute). + However another attempt to create the same file will still succeed + if the lease has not been renewed within a minute. This prevents + communication or scheduling problems from causing a write to fail + for up to an hour, barring some other process trying to create the + same file. (Dhruba Borthakur via cutting) + +16. HADOOP-635. In DFSShell, permit specification of multiple files + as the source for file copy and move commands. + (Dhruba Borthakur via cutting) + +17. HADOOP-641. Change NameNode to request a fresh block report from + a re-discovered DataNode, so that no-longer-needed replications + are stopped promptly. (Konstantin Shvachko via cutting) + +18. HADOOP-642. Change IPC client to specify an explicit connect + timeout. (Konstantin Shvachko via cutting) + +19. HADOOP-638. Fix an unsynchronized access to TaskTracker's + internal state. (Nigel Daley via cutting) + +20. HADOOP-624. Fix servlet path to stop a Jetty warning on startup. + (omalley via cutting) + +21. HADOOP-578. Failed tasks are no longer placed at the end of the + task queue. This was originally done to work around other + problems that have now been fixed. Re-executing failed tasks + sooner causes buggy jobs to fail faster. (Sanjay Dahiya via cutting) + +22. HADOOP-658. Update source file headers per Apache policy. (cutting) + +23. HADOOP-636. Add MapFile & ArrayFile constructors which accept a + Progressable, and pass it down to SequenceFile. This permits + reduce tasks which use MapFile to still report progress while + writing blocks to the filesystem. (cutting) + +24. HADOOP-576. Enable contrib/streaming to use the file cache. Also + extend the cache to permit symbolic links to cached items, rather + than local file copies. (Mahadev Konar via cutting) + +25. HADOOP-482. Fix unit tests to work when a cluster is running on + the same machine, removing port conflicts. (Wendy Chien via cutting) + +26. HADOOP-90. Permit dfs.name.dir to list multiple directories, + where namenode data is to be replicated. (Milind Bhandarkar via cutting) + +27. HADOOP-651. Fix DFSCk to correctly pass parameters to the servlet + on the namenode. (Milind Bhandarkar via cutting) + +28. HADOOP-553. Change main() routines of DataNode and NameNode to + log exceptions rather than letting the JVM print them to standard + error. Also, change the hadoop-daemon.sh script to rotate + standard i/o log files. (Raghu Angadi via cutting) + +29. HADOOP-399. Fix javadoc warnings. (Nigel Daley via cutting) + +30. HADOOP-599. Fix web ui and command line to correctly report DFS + filesystem size statistics. Also improve web layout. + (Raghu Angadi via cutting) + +31. HADOOP-660. Permit specification of junit test output format. + (Nigel Daley via cutting) + +32. HADOOP-663. Fix a few unit test issues. (Mahadev Konar via cutting) + +33. HADOOP-664. Cause entire build to fail if libhdfs tests fail. + (Nigel Daley via cutting) + +34. HADOOP-633. Keep jobtracker from dying when job initialization + throws exceptions. Also improve exception handling in a few other + places and add more informative thread names. + (omalley via cutting) + +35. HADOOP-669. Fix a problem introduced by HADOOP-90 that can cause + DFS to lose files. (Milind Bhandarkar via cutting) + +36. HADOOP-373. Consistently check the value returned by + FileSystem.mkdirs(). (Wendy Chien via cutting) + +37. HADOOP-670. Code cleanups in some DFS internals: use generic + types, replace Vector with ArrayList, etc. + (Konstantin Shvachko via cutting) + +38. HADOOP-647. Permit map outputs to use a different compression + type than the job output. (omalley via cutting) + +39. HADOOP-671. Fix file cache to check for pre-existence before + creating . (Mahadev Konar via cutting) + +40. HADOOP-665. Extend many DFSShell commands to accept multiple + arguments. Now commands like "ls", "rm", etc. will operate on + multiple files. (Dhruba Borthakur via cutting) + + +Release 0.7.2 - 2006-10-18 + + 1. HADOOP-607. Fix a bug where classes included in job jars were not + found by tasks. (Mahadev Konar via cutting) + + 2. HADOOP-609. Add a unit test that checks that classes in job jars + can be found by tasks. Also modify unit tests to specify multiple + local directories. (Mahadev Konar via cutting) + + +Release 0.7.1 - 2006-10-11 + + 1. HADOOP-593. Fix a NullPointerException in the JobTracker. + (omalley via cutting) + + 2. HADOOP-592. Fix a NullPointerException in the IPC Server. Also + consistently log when stale calls are discarded. (omalley via cutting) + + 3. HADOOP-594. Increase the DFS safe-mode threshold from .95 to + .999, so that nearly all blocks must be reported before filesystem + modifications are permitted. (Konstantin Shvachko via cutting) + + 4. HADOOP-598. Fix tasks to retry when reporting completion, so that + a single RPC timeout won't fail a task. (omalley via cutting) + + 5. HADOOP-597. Fix TaskTracker to not discard map outputs for errors + in transmitting them to reduce nodes. (omalley via cutting) + + +Release 0.7.0 - 2006-10-06 + + 1. HADOOP-243. Fix rounding in the display of task and job progress + so that things are not shown to be 100% complete until they are in + fact finished. (omalley via cutting) + + 2. HADOOP-438. Limit the length of absolute paths in DFS, since the + file format used to store pathnames has some limitations. + (Wendy Chien via cutting) + + 3. HADOOP-530. Improve error messages in SequenceFile when keys or + values are of the wrong type. (Hairong Kuang via cutting) + + 4. HADOOP-288. Add a file caching system and use it in MapReduce to + cache job jar files on slave nodes. (Mahadev Konar via cutting) + + 5. HADOOP-533. Fix unit test to not modify conf directory. + (Hairong Kuang via cutting) + + 6. HADOOP-527. Permit specification of the local address that various + Hadoop daemons should bind to. (Philippe Gassmann via cutting) + + 7. HADOOP-542. Updates to contrib/streaming: reformatted source code, + on-the-fly merge sort, a fix for HADOOP-540, etc. + (Michel Tourn via cutting) + + 8. HADOOP-545. Remove an unused config file parameter. + (Philippe Gassmann via cutting) + + 9. HADOOP-548. Add an Ant property "test.output" to build.xml that + causes test output to be logged to the console. (omalley via cutting) + +10. HADOOP-261. Record an error message when map output is lost. + (omalley via cutting) + +11. HADOOP-293. Report the full list of task error messages in the + web ui, not just the most recent. (omalley via cutting) + +12. HADOOP-551. Restore JobClient's console printouts to only include + a maximum of one update per one percent of progress. + (omalley via cutting) + +13. HADOOP-306. Add a "safe" mode to DFS. The name node enters this + when less than a specified percentage of file data is complete. + Currently safe mode is only used on startup, but eventually it + will also be entered when datanodes disconnect and file data + becomes incomplete. While in safe mode no filesystem + modifications are permitted and block replication is inhibited. + (Konstantin Shvachko via cutting) + +14. HADOOP-431. Change 'dfs -rm' to not operate recursively and add a + new command, 'dfs -rmr' which operates recursively. + (Sameer Paranjpye via cutting) + +15. HADOOP-263. Include timestamps for job transitions. The web + interface now displays the start and end times of tasks and the + start times of sorting and reducing for reduce tasks. Also, + extend ObjectWritable to handle enums, so that they can be passed + as RPC parameters. (Sanjay Dahiya via cutting) + +16. HADOOP-556. Contrib/streaming: send keep-alive reports to task + tracker every 10 seconds rather than every 100 records, to avoid + task timeouts. (Michel Tourn via cutting) + +17. HADOOP-547. Fix reduce tasks to ping tasktracker while copying + data, rather than only between copies, avoiding task timeouts. + (Sanjay Dahiya via cutting) + +18. HADOOP-537. Fix src/c++/libhdfs build process to create files in + build/, no longer modifying the source tree. + (Arun C Murthy via cutting) + +19. HADOOP-487. Throw a more informative exception for unknown RPC + hosts. (Sameer Paranjpye via cutting) + +20. HADOOP-559. Add file name globbing (pattern matching) support to + the FileSystem API, and use it in DFSShell ('bin/hadoop dfs') + commands. (Hairong Kuang via cutting) + +21. HADOOP-508. Fix a bug in FSDataInputStream. Incorrect data was + returned after seeking to a random location. + (Milind Bhandarkar via cutting) + +22. HADOOP-560. Add a "killed" task state. This can be used to + distinguish kills from other failures. Task state has also been + converted to use an enum type instead of an int, uncovering a bug + elsewhere. The web interface is also updated to display killed + tasks. (omalley via cutting) + +23. HADOOP-423. Normalize Paths containing directories named "." and + "..", using the standard, unix interpretation. Also add checks in + DFS, prohibiting the use of "." or ".." as directory or file + names. (Wendy Chien via cutting) + +24. HADOOP-513. Replace map output handling with a servlet, rather + than a JSP page. This fixes an issue where + IllegalStateException's were logged, sets content-length + correctly, and better handles some errors. (omalley via cutting) + +25. HADOOP-552. Improved error checking when copying map output files + to reduce nodes. (omalley via cutting) + +26. HADOOP-566. Fix scripts to work correctly when accessed through + relative symbolic links. (Lee Faris via cutting) + +27. HADOOP-519. Add positioned read methods to FSInputStream. These + permit one to read from a stream without moving its position, and + can hence be performed by multiple threads at once on a single + stream. Implement an optimized version for DFS and local FS. + (Milind Bhandarkar via cutting) + +28. HADOOP-522. Permit block compression with MapFile and SetFile. + Since these formats are always sorted, block compression can + provide a big advantage. (cutting) + +29. HADOOP-567. Record version and revision information in builds. A + package manifest is added to the generated jar file containing + version information, and a VersionInfo utility is added that + includes further information, including the build date and user, + and the subversion revision and repository. A 'bin/hadoop + version' comand is added to show this information, and it is also + added to various web interfaces. (omalley via cutting) + +30. HADOOP-568. Fix so that errors while initializing tasks on a + tasktracker correctly report the task as failed to the jobtracker, + so that it will be rescheduled. (omalley via cutting) + +31. HADOOP-550. Disable automatic UTF-8 validation in Text. This + permits, e.g., TextInputFormat to again operate on non-UTF-8 data. + (Hairong and Mahadev via cutting) + +32. HADOOP-343. Fix mapred copying so that a failed tasktracker + doesn't cause other copies to slow. (Sameer Paranjpye via cutting) + +33. HADOOP-239. Add a persistent job history mechanism, so that basic + job statistics are not lost after 24 hours and/or when the + jobtracker is restarted. (Sanjay Dahiya via cutting) + +34. HADOOP-506. Ignore heartbeats from stale task trackers. + (Sanjay Dahiya via cutting) + +35. HADOOP-255. Discard stale, queued IPC calls. Do not process + calls whose clients will likely time out before they receive a + response. When the queue is full, new calls are now received and + queued, and the oldest calls are discarded, so that, when servers + get bogged down, they no longer develop a backlog on the socket. + This should improve some DFS namenode failure modes. + (omalley via cutting) + +36. HADOOP-581. Fix datanode to not reset itself on communications + errors with the namenode. If a request to the namenode fails, the + datanode should retry, not restart. This reduces the load on the + namenode, since restarts cause a resend of the block report. + (omalley via cutting) + + +Release 0.6.2 - 2006-09-18 + +1. HADOOP-532. Fix a bug reading value-compressed sequence files, + where an exception was thrown reporting that the full value had not + been read. (omalley via cutting) + +2. HADOOP-534. Change the default value class in JobConf to be Text + instead of the now-deprecated UTF8. This fixes the Grep example + program, which was updated to use Text, but relies on this + default. (Hairong Kuang via cutting) + + +Release 0.6.1 - 2006-09-13 + + 1. HADOOP-520. Fix a bug in libhdfs, where write failures were not + correctly returning error codes. (Arun C Murthy via cutting) + + 2. HADOOP-523. Fix a NullPointerException when TextInputFormat is + explicitly specified. Also add a test case for this. + (omalley via cutting) + + 3. HADOOP-521. Fix another NullPointerException finding the + ClassLoader when using libhdfs. (omalley via cutting) + + 4. HADOOP-526. Fix a NullPointerException when attempting to start + two datanodes in the same directory. (Milind Bhandarkar via cutting) + + 5. HADOOP-529. Fix a NullPointerException when opening + value-compressed sequence files generated by pre-0.6.0 Hadoop. + (omalley via cutting) + + +Release 0.6.0 - 2006-09-08 + + 1. HADOOP-427. Replace some uses of DatanodeDescriptor in the DFS + web UI code with DatanodeInfo, the preferred public class. + (Devaraj Das via cutting) + + 2. HADOOP-426. Fix streaming contrib module to work correctly on + Solaris. This was causing nightly builds to fail. + (Michel Tourn via cutting) + + 3. HADOOP-400. Improvements to task assignment. Tasks are no longer + re-run on nodes where they have failed (unless no other node is + available). Also, tasks are better load-balanced among nodes. + (omalley via cutting) + + 4. HADOOP-324. Fix datanode to not exit when a disk is full, but + rather simply to fail writes. (Wendy Chien via cutting) + + 5. HADOOP-434. Change smallJobsBenchmark to use standard Hadoop + scripts. (Sanjay Dahiya via cutting) + + 6. HADOOP-453. Fix a bug in Text.setCapacity(). (siren via cutting) + + + 7. HADOOP-450. Change so that input types are determined by the + RecordReader rather than specified directly in the JobConf. This + facilitates jobs with a variety of input types. + + WARNING: This contains incompatible API changes! The RecordReader + interface has two new methods that all user-defined InputFormats + must now define. Also, the values returned by TextInputFormat are + no longer of class UTF8, but now of class Text. + + 8. HADOOP-436. Fix an error-handling bug in the web ui. + (Devaraj Das via cutting) + + 9. HADOOP-455. Fix a bug in Text, where DEL was not permitted. + (Hairong Kuang via cutting) + +10. HADOOP-456. Change the DFS namenode to keep a persistent record + of the set of known datanodes. This will be used to implement a + "safe mode" where filesystem changes are prohibited when a + critical percentage of the datanodes are unavailable. + (Konstantin Shvachko via cutting) + +11. HADOOP-322. Add a job control utility. This permits one to + specify job interdependencies. Each job is submitted only after + the jobs it depends on have successfully completed. + (Runping Qi via cutting) + +12. HADOOP-176. Fix a bug in IntWritable.Comparator. + (Dick King via cutting) + +13. HADOOP-421. Replace uses of String in recordio package with Text + class, for improved handling of UTF-8 data. + (Milind Bhandarkar via cutting) + +14. HADOOP-464. Improved error message when job jar not found. + (Michel Tourn via cutting) + +15. HADOOP-469. Fix /bin/bash specifics that have crept into our + /bin/sh scripts since HADOOP-352. + (Jean-Baptiste Quenot via cutting) + +16. HADOOP-468. Add HADOOP_NICENESS environment variable to set + scheduling priority for daemons. (Vetle Roeim via cutting) + +17. HADOOP-473. Fix TextInputFormat to correctly handle more EOL + formats. Things now work correctly with CR, LF or CRLF. + (Dennis Kubes & James White via cutting) + +18. HADOOP-461. Make Java 1.5 an explicit requirement. (cutting) + +19. HADOOP-54. Add block compression to SequenceFile. One may now + specify that blocks of keys and values are compressed together, + improving compression for small keys and values. + SequenceFile.Writer's constructor is now deprecated and replaced + with a factory method. (Arun C Murthy via cutting) + +20. HADOOP-281. Prohibit DFS files that are also directories. + (Wendy Chien via cutting) + +21. HADOOP-486. Add the job username to JobStatus instances returned + by JobClient. (Mahadev Konar via cutting) + +22. HADOOP-437. contrib/streaming: Add support for gzipped inputs. + (Michel Tourn via cutting) + +23. HADOOP-463. Add variable expansion to config files. + Configuration property values may now contain variable + expressions. A variable is referenced with the syntax + '${variable}'. Variables values are found first in the + configuration, and then in Java system properties. The default + configuration is modified so that temporary directories are now + under ${hadoop.tmp.dir}, which is, by default, + /tmp/hadoop-${user.name}. (Michel Tourn via cutting) + +24. HADOOP-419. Fix a NullPointerException finding the ClassLoader + when using libhdfs. (omalley via cutting) + +25. HADOOP-460. Fix contrib/smallJobsBenchmark to use Text instead of + UTF8. (Sanjay Dahiya via cutting) + +26. HADOOP-196. Fix Configuration(Configuration) constructor to work + correctly. (Sami Siren via cutting) + +27. HADOOP-501. Fix Configuration.toString() to handle URL resources. + (Thomas Friol via cutting) + +28. HADOOP-499. Reduce the use of Strings in contrib/streaming, + replacing them with Text for better performance. + (Hairong Kuang via cutting) + +29. HADOOP-64. Manage multiple volumes with a single DataNode. + Previously DataNode would create a separate daemon per configured + volume, each with its own connection to the NameNode. Now all + volumes are handled by a single DataNode daemon, reducing the load + on the NameNode. (Milind Bhandarkar via cutting) + +30. HADOOP-424. Fix MapReduce so that jobs which generate zero splits + do not fail. (Fr??d??ric Bertin via cutting) + +31. HADOOP-408. Adjust some timeouts and remove some others so that + unit tests run faster. (cutting) + +32. HADOOP-507. Fix an IllegalAccessException in DFS. + (omalley via cutting) + +33. HADOOP-320. Fix so that checksum files are correctly copied when + the destination of a file copy is a directory. + (Hairong Kuang via cutting) + +34. HADOOP-286. In DFSClient, avoid pinging the NameNode with + renewLease() calls when no files are being written. + (Konstantin Shvachko via cutting) + +35. HADOOP-312. Close idle IPC connections. All IPC connections were + cached forever. Now, after a connection has been idle for more + than a configurable amount of time (one second by default), the + connection is closed, conserving resources on both client and + server. (Devaraj Das via cutting) + +36. HADOOP-497. Permit the specification of the network interface and + nameserver to be used when determining the local hostname + advertised by datanodes and tasktrackers. + (Lorenzo Thione via cutting) + +37. HADOOP-441. Add a compression codec API and extend SequenceFile + to use it. This will permit the use of alternate compression + codecs in SequenceFile. (Arun C Murthy via cutting) + +38. HADOOP-483. Improvements to libhdfs build and documentation. + (Arun C Murthy via cutting) + +39. HADOOP-458. Fix a memory corruption bug in libhdfs. + (Arun C Murthy via cutting) + +40. HADOOP-517. Fix a contrib/streaming bug in end-of-line detection. + (Hairong Kuang via cutting) + +41. HADOOP-474. Add CompressionCodecFactory, and use it in + TextInputFormat and TextOutputFormat. Compressed input files are + automatically decompressed when they have the correct extension. + Output files will, when output compression is specified, be + generated with an approprate extension. Also add a gzip codec and + fix problems with UTF8 text inputs. (omalley via cutting) + + +Release 0.5.0 - 2006-08-04 + + 1. HADOOP-352. Fix shell scripts to use /bin/sh instead of + /bin/bash, for better portability. + (Jean-Baptiste Quenot via cutting) + + 2. HADOOP-313. Permit task state to be saved so that single tasks + may be manually re-executed when debugging. (omalley via cutting) + + 3. HADOOP-339. Add method to JobClient API listing jobs that are + not yet complete, i.e., that are queued or running. + (Mahadev Konar via cutting) + + 4. HADOOP-355. Updates to the streaming contrib module, including + API fixes, making reduce optional, and adding an input type for + StreamSequenceRecordReader. (Michel Tourn via cutting) + + 5. HADOOP-358. Fix a NPE bug in Path.equals(). + (Fr??d??ric Bertin via cutting) + + 6. HADOOP-327. Fix ToolBase to not call System.exit() when + exceptions are thrown. (Hairong Kuang via cutting) + + 7. HADOOP-359. Permit map output to be compressed. + (omalley via cutting) + + 8. HADOOP-341. Permit input URI to CopyFiles to use the HTTP + protocol. This lets one, e.g., more easily copy log files into + DFS. (Arun C Murthy via cutting) + + 9. HADOOP-361. Remove unix dependencies from streaming contrib + module tests, making them pure java. (Michel Tourn via cutting) + +10. HADOOP-354. Make public methods to stop DFS daemons. + (Barry Kaplan via cutting) + +11. HADOOP-252. Add versioning to RPC protocols. + (Milind Bhandarkar via cutting) + +12. HADOOP-356. Add contrib to "compile" and "test" build targets, so + that this code is better maintained. (Michel Tourn via cutting) + +13. HADOOP-307. Add smallJobsBenchmark contrib module. This runs + lots of small jobs, in order to determine per-task overheads. + (Sanjay Dahiya via cutting) + +14. HADOOP-342. Add a tool for log analysis: Logalyzer. + (Arun C Murthy via cutting) + +15. HADOOP-347. Add web-based browsing of DFS content. The namenode + redirects browsing requests to datanodes. Content requests are + redirected to datanodes where the data is local when possible. + (Devaraj Das via cutting) + +16. HADOOP-351. Make Hadoop IPC kernel independent of Jetty. + (Devaraj Das via cutting) + +17. HADOOP-237. Add metric reporting to DFS and MapReduce. With only + minor configuration changes, one can now monitor many Hadoop + system statistics using Ganglia or other monitoring systems. + (Milind Bhandarkar via cutting) + +18. HADOOP-376. Fix datanode's HTTP server to scan for a free port. + (omalley via cutting) + +19. HADOOP-260. Add --config option to shell scripts, specifying an + alternate configuration directory. (Milind Bhandarkar via cutting) + +20. HADOOP-381. Permit developers to save the temporary files for + tasks whose names match a regular expression, to facilliate + debugging. (omalley via cutting) + +21. HADOOP-344. Fix some Windows-related problems with DF. + (Konstantin Shvachko via cutting) + +22. HADOOP-380. Fix reduce tasks to poll less frequently for map + outputs. (Mahadev Konar via cutting) + +23. HADOOP-321. Refactor DatanodeInfo, in preparation for + HADOOP-306. (Konstantin Shvachko & omalley via cutting) + +24. HADOOP-385. Fix some bugs in record io code generation. + (Milind Bhandarkar via cutting) + +25. HADOOP-302. Add new Text class to replace UTF8, removing + limitations of that class. Also refactor utility methods for + writing zero-compressed integers (VInts and VLongs). + (Hairong Kuang via cutting) + +26. HADOOP-335. Refactor DFS namespace/transaction logging in + namenode. (Konstantin Shvachko via cutting) + +27. HADOOP-375. Fix handling of the datanode HTTP daemon's port so + that multiple datanode's can be run on a single host. + (Devaraj Das via cutting) + +28. HADOOP-386. When removing excess DFS block replicas, remove those + on nodes with the least free space first. + (Johan Oskarson via cutting) + +29. HADOOP-389. Fix intermittent failures of mapreduce unit tests. + Also fix some build dependencies. + (Mahadev & Konstantin via cutting) + +30. HADOOP-362. Fix a problem where jobs hang when status messages + are recieved out-of-order. (omalley via cutting) + +31. HADOOP-394. Change order of DFS shutdown in unit tests to + minimize errors logged. (Konstantin Shvachko via cutting) + +32. HADOOP-396. Make DatanodeID implement Writable. + (Konstantin Shvachko via cutting) + +33. HADOOP-377. Permit one to add URL resources to a Configuration. + (Jean-Baptiste Quenot via cutting) + +34. HADOOP-345. Permit iteration over Configuration key/value pairs. + (Michel Tourn via cutting) + +35. HADOOP-409. Streaming contrib module: make configuration + properties available to commands as environment variables. + (Michel Tourn via cutting) + +36. HADOOP-369. Add -getmerge option to dfs command that appends all + files in a directory into a single local file. + (Johan Oskarson via cutting) + +37. HADOOP-410. Replace some TreeMaps with HashMaps in DFS, for + a 17% performance improvement. (Milind Bhandarkar via cutting) + +38. HADOOP-411. Add unit tests for command line parser. + (Hairong Kuang via cutting) + +39. HADOOP-412. Add MapReduce input formats that support filtering + of SequenceFile data, including sampling and regex matching. + Also, move JobConf.newInstance() to a new utility class. + (Hairong Kuang via cutting) + +40. HADOOP-226. Fix fsck command to properly consider replication + counts, now that these can vary per file. (Bryan Pendleton via cutting) + +41. HADOOP-425. Add a Python MapReduce example, using Jython. + (omalley via cutting) + + +Release 0.4.0 - 2006-06-28 + + 1. HADOOP-298. Improved progress reports for CopyFiles utility, the + distributed file copier. (omalley via cutting) + + 2. HADOOP-299. Fix the task tracker, permitting multiple jobs to + more easily execute at the same time. (omalley via cutting) + + 3. HADOOP-250. Add an HTTP user interface to the namenode, running + on port 50070. (Devaraj Das via cutting) + + 4. HADOOP-123. Add MapReduce unit tests that run a jobtracker and + tasktracker, greatly increasing code coverage. + (Milind Bhandarkar via cutting) + + 5. HADOOP-271. Add links from jobtracker's web ui to tasktracker's + web ui. Also attempt to log a thread dump of child processes + before they're killed. (omalley via cutting) + + 6. HADOOP-210. Change RPC server to use a selector instead of a + thread per connection. This should make it easier to scale to + larger clusters. Note that this incompatibly changes the RPC + protocol: clients and servers must both be upgraded to the new + version to ensure correct operation. (Devaraj Das via cutting) + + 7. HADOOP-311. Change DFS client to retry failed reads, so that a + single read failure will not alone cause failure of a task. + (omalley via cutting) + + 8. HADOOP-314. Remove the "append" phase when reducing. Map output + files are now directly passed to the sorter, without first + appending them into a single file. Now, the first third of reduce + progress is "copy" (transferring map output to reduce nodes), the + middle third is "sort" (sorting map output) and the last third is + "reduce" (generating output). Long-term, the "sort" phase will + also be removed. (omalley via cutting) + + 9. HADOOP-316. Fix a potential deadlock in the jobtracker. + (omalley via cutting) + +10. HADOOP-319. Fix FileSystem.close() to remove the FileSystem + instance from the cache. (Hairong Kuang via cutting) + +11. HADOOP-135. Fix potential deadlock in JobTracker by acquiring + locks in a consistent order. (omalley via cutting) + +12. HADOOP-278. Check for existence of input directories before + starting MapReduce jobs, making it easier to debug this common + error. (omalley via cutting) + +13. HADOOP-304. Improve error message for + UnregisterdDatanodeException to include expected node name. + (Konstantin Shvachko via cutting) + +14. HADOOP-305. Fix TaskTracker to ask for new tasks as soon as a + task is finished, rather than waiting for the next heartbeat. + This improves performance when tasks are short. + (Mahadev Konar via cutting) + +15. HADOOP-59. Add support for generic command line options. One may + now specify the filesystem (-fs), the MapReduce jobtracker (-jt), + a config file (-conf) or any configuration property (-D). The + "dfs", "fsck", "job", and "distcp" commands currently support + this, with more to be added. (Hairong Kuang via cutting) + +16. HADOOP-296. Permit specification of the amount of reserved space + on a DFS datanode. One may specify both the percentage free and + the number of bytes. (Johan Oskarson via cutting) + +17. HADOOP-325. Fix a problem initializing RPC parameter classes, and + remove the workaround used to initialize classes. + (omalley via cutting) + +18. HADOOP-328. Add an option to the "distcp" command to ignore read + errors while copying. (omalley via cutting) + +19. HADOOP-27. Don't allocate tasks to trackers whose local free + space is too low. (Johan Oskarson via cutting) + +20. HADOOP-318. Keep slow DFS output from causing task timeouts. + This incompatibly changes some public interfaces, adding a + parameter to OutputFormat.getRecordWriter() and the new method + Reporter.progress(), but it makes lots of tasks succeed that were + previously failing. (Milind Bhandarkar via cutting) + + +Release 0.3.2 - 2006-06-09 + + 1. HADOOP-275. Update the streaming contrib module to use log4j for + its logging. (Michel Tourn via cutting) + + 2. HADOOP-279. Provide defaults for log4j logging parameters, so + that things still work reasonably when Hadoop-specific system + properties are not provided. (omalley via cutting) + + 3. HADOOP-280. Fix a typo in AllTestDriver which caused the wrong + test to be run when "DistributedFSCheck" was specified. + (Konstantin Shvachko via cutting) + + 4. HADOOP-240. DFS's mkdirs() implementation no longer logs a warning + when the directory already exists. (Hairong Kuang via cutting) + + 5. HADOOP-285. Fix DFS datanodes to be able to re-join the cluster + after the connection to the namenode is lost. (omalley via cutting) + + 6. HADOOP-277. Fix a race condition when creating directories. + (Sameer Paranjpye via cutting) + + 7. HADOOP-289. Improved exception handling in DFS datanode. + (Konstantin Shvachko via cutting) + + 8. HADOOP-292. Fix client-side logging to go to standard error + rather than standard output, so that it can be distinguished from + application output. (omalley via cutting) + + 9. HADOOP-294. Fixed bug where conditions for retrying after errors + in the DFS client were reversed. (omalley via cutting) + + +Release 0.3.1 - 2006-06-05 + + 1. HADOOP-272. Fix a bug in bin/hadoop setting log + parameters. (omalley & cutting) + + 2. HADOOP-274. Change applications to log to standard output rather + than to a rolling log file like daemons. (omalley via cutting) + + 3. HADOOP-262. Fix reduce tasks to report progress while they're + waiting for map outputs, so that they do not time out. + (Mahadev Konar via cutting) + + 4. HADOOP-245 and HADOOP-246. Improvements to record io package. + (Mahadev Konar via cutting) + + 5. HADOOP-276. Add logging config files to jar file so that they're + always found. (omalley via cutting) + + +Release 0.3.0 - 2006-06-02 + + 1. HADOOP-208. Enhance MapReduce web interface, adding new pages + for failed tasks, and tasktrackers. (omalley via cutting) + + 2. HADOOP-204. Tweaks to metrics package. (David Bowen via cutting) + + 3. HADOOP-209. Add a MapReduce-based file copier. This will + copy files within or between file systems in parallel. + (Milind Bhandarkar via cutting) + + 4. HADOOP-146. Fix DFS to check when randomly generating a new block + id that no existing blocks already have that id. + (Milind Bhandarkar via cutting) + + 5. HADOOP-180. Make a daemon thread that does the actual task clean ups, so + that the main offerService thread in the taskTracker doesn't get stuck + and miss his heartbeat window. This was killing many task trackers as + big jobs finished (300+ tasks / node). (omalley via cutting) + + 6. HADOOP-200. Avoid transmitting entire list of map task names to + reduce tasks. Instead just transmit the number of map tasks and + henceforth refer to them by number when collecting map output. + (omalley via cutting) + + 7. HADOOP-219. Fix a NullPointerException when handling a checksum + exception under SequenceFile.Sorter.sort(). (cutting & stack) + + 8. HADOOP-212. Permit alteration of the file block size in DFS. The + default block size for new files may now be specified in the + configuration with the dfs.block.size property. The block size + may also be specified when files are opened. + (omalley via cutting) + + 9. HADOOP-218. Avoid accessing configuration while looping through + tasks in JobTracker. (Mahadev Konar via cutting) + +10. HADOOP-161. Add hashCode() method to DFS's Block. + (Milind Bhandarkar via cutting) + +11. HADOOP-115. Map output types may now be specified. These are also + used as reduce input types, thus permitting reduce input types to + differ from reduce output types. (Runping Qi via cutting) + +12. HADOOP-216. Add task progress to task status page. + (Bryan Pendelton via cutting) + +13. HADOOP-233. Add web server to task tracker that shows running + tasks and logs. Also add log access to job tracker web interface. + (omalley via cutting) + +14. HADOOP-205. Incorporate pending tasks into tasktracker load + calculations. (Mahadev Konar via cutting) + +15. HADOOP-247. Fix sort progress to better handle exceptions. + (Mahadev Konar via cutting) + +16. HADOOP-195. Improve performance of the transfer of map outputs to + reduce nodes by performing multiple transfers in parallel, each on + a separate socket. (Sameer Paranjpye via cutting) + +17. HADOOP-251. Fix task processes to be tolerant of failed progress + reports to their parent process. (omalley via cutting) + +18. HADOOP-325. Improve the FileNotFound exceptions thrown by + LocalFileSystem to include the name of the file. + (Benjamin Reed via cutting) + +19. HADOOP-254. Use HTTP to transfer map output data to reduce + nodes. This, together with HADOOP-195, greatly improves the + performance of these transfers. (omalley via cutting) + +20. HADOOP-163. Cause datanodes that\ are unable to either read or + write data to exit, so that the namenode will no longer target + them for new blocks and will replicate their data on other nodes. + (Hairong Kuang via cutting) + +21. HADOOP-222. Add a -setrep option to the dfs commands that alters + file replication levels. (Johan Oskarson via cutting) + +22. HADOOP-75. In DFS, only check for a complete file when the file + is closed, rather than as each block is written. + (Milind Bhandarkar via cutting) + +23. HADOOP-124. Change DFS so that datanodes are identified by a + persistent ID rather than by host and port. This solves a number + of filesystem integrity problems, when, e.g., datanodes are + restarted. (Konstantin Shvachko via cutting) + +24. HADOOP-256. Add a C API for DFS. (Arun C Murthy via cutting) + +25. HADOOP-211. Switch to use the Jakarta Commons logging internally, + configured to use log4j by default. (Arun C Murthy and cutting) + +26. HADOOP-265. Tasktracker now fails to start if it does not have a + writable local directory for temporary files. In this case, it + logs a message to the JobTracker and exits. (Hairong Kuang via cutting) + +27. HADOOP-270. Fix potential deadlock in datanode shutdown. + (Hairong Kuang via cutting) + +Release 0.2.1 - 2006-05-12 + + 1. HADOOP-199. Fix reduce progress (broken by HADOOP-182). + (omalley via cutting) + + 2. HADOOP-201. Fix 'bin/hadoop dfs -report'. (cutting) + + 3. HADOOP-207. Fix JDK 1.4 incompatibility introduced by HADOOP-96. + System.getenv() does not work in JDK 1.4. (Hairong Kuang via cutting) + + +Release 0.2.0 - 2006-05-05 + + 1. Fix HADOOP-126. 'bin/hadoop dfs -cp' now correctly copies .crc + files. (Konstantin Shvachko via cutting) + + 2. Fix HADOOP-51. Change DFS to support per-file replication counts. + (Konstantin Shvachko via cutting) + + 3. Fix HADOOP-131. Add scripts to start/stop dfs and mapred daemons. + Use these in start/stop-all scripts. (Chris Mattmann via cutting) + + 4. Stop using ssh options by default that are not yet in widely used + versions of ssh. Folks can still enable their use by uncommenting + a line in conf/hadoop-env.sh. (cutting) + + 5. Fix HADOOP-92. Show information about all attempts to run each + task in the web ui. (Mahadev konar via cutting) + + 6. Fix HADOOP-128. Improved DFS error handling. (Owen O'Malley via cutting) + + 7. Fix HADOOP-129. Replace uses of java.io.File with new class named + Path. This fixes bugs where java.io.File methods were called + directly when FileSystem methods were desired, and reduces the + likelihood of such bugs in the future. It also makes the handling + of pathnames more consistent between local and dfs FileSystems and + between Windows and Unix. java.io.File-based methods are still + available for back-compatibility, but are deprecated and will be + removed once 0.2 is released. (cutting) + + 8. Change dfs.data.dir and mapred.local.dir to be comma-separated + lists of directories, no longer be space-separated. This fixes + several bugs on Windows. (cutting) + + 9. Fix HADOOP-144. Use mapred task id for dfs client id, to + facilitate debugging. (omalley via cutting) + +10. Fix HADOOP-143. Do not line-wrap stack-traces in web ui. + (omalley via cutting) + +11. Fix HADOOP-118. In DFS, improve clean up of abandoned file + creations. (omalley via cutting) + +12. Fix HADOOP-138. Stop multiple tasks in a single heartbeat, rather + than one per heartbeat. (Stefan via cutting) + +13. Fix HADOOP-139. Remove a potential deadlock in + LocalFileSystem.lock(). (Igor Bolotin via cutting) + +14. Fix HADOOP-134. Don't hang jobs when the tasktracker is + misconfigured to use an un-writable local directory. (omalley via cutting) + +15. Fix HADOOP-115. Correct an error message. (Stack via cutting) + +16. Fix HADOOP-133. Retry pings from child to parent, in case of + (local) communcation problems. Also log exit status, so that one + can distinguish patricide from other deaths. (omalley via cutting) + +17. Fix HADOOP-142. Avoid re-running a task on a host where it has + previously failed. (omalley via cutting) + +18. Fix HADOOP-148. Maintain a task failure count for each + tasktracker and display it in the web ui. (omalley via cutting) + +19. Fix HADOOP-151. Close a potential socket leak, where new IPC + connection pools were created per configuration instance that RPCs + use. Now a global RPC connection pool is used again, as + originally intended. (cutting) + +20. Fix HADOOP-69. Don't throw a NullPointerException when getting + hints for non-existing file split. (Bryan Pendelton via cutting) + +21. Fix HADOOP-157. When a task that writes dfs files (e.g., a reduce + task) failed and was retried, it would fail again and again, + eventually failing the job. The problem was that dfs did not yet + know that the failed task had abandoned the files, and would not + yet let another task create files with the same names. Dfs now + retries when creating a file long enough for locks on abandoned + files to expire. (omalley via cutting) + +22. Fix HADOOP-150. Improved task names that include job + names. (omalley via cutting) + +23. Fix HADOOP-162. Fix ConcurrentModificationException when + releasing file locks. (omalley via cutting) + +24. Fix HADOOP-132. Initial check-in of new Metrics API, including + implementations for writing metric data to a file and for sending + it to Ganglia. (David Bowen via cutting) + +25. Fix HADOOP-160. Remove some uneeded synchronization around + time-consuming operations in the TaskTracker. (omalley via cutting) + +26. Fix HADOOP-166. RPCs failed when passed subclasses of a declared + parameter type. This is fixed by changing ObjectWritable to store + both the declared type and the instance type for Writables. Note + that this incompatibly changes the format of ObjectWritable and + will render unreadable any ObjectWritables stored in files. + Nutch only uses ObjectWritable in intermediate files, so this + should not be a problem for Nutch. (Stefan & cutting) + +27. Fix HADOOP-168. MapReduce RPC protocol methods should all declare + IOException, so that timeouts are handled appropriately. + (omalley via cutting) + +28. Fix HADOOP-169. Don't fail a reduce task if a call to the + jobtracker to locate map outputs fails. (omalley via cutting) + +29. Fix HADOOP-170. Permit FileSystem clients to examine and modify + the replication count of individual files. Also fix a few + replication-related bugs. (Konstantin Shvachko via cutting) + +30. Permit specification of a higher replication levels for job + submission files (job.xml and job.jar). This helps with large + clusters, since these files are read by every node. (cutting) + +31. HADOOP-173. Optimize allocation of tasks with local data. (cutting) + +32. HADOOP-167. Reduce number of Configurations and JobConf's + created. (omalley via cutting) + +33. NUTCH-256. Change FileSystem#createNewFile() to create a .crc + file. The lack of a .crc file was causing warnings. (cutting) + +34. HADOOP-174. Change JobClient to not abort job until it has failed + to contact the job tracker for five attempts, not just one as + before. (omalley via cutting) + +35. HADOOP-177. Change MapReduce web interface to page through tasks. + Previously, when jobs had more than a few thousand tasks they + could crash web browsers. (Mahadev Konar via cutting) + +36. HADOOP-178. In DFS, piggyback blockwork requests from datanodes + on heartbeat responses from namenode. This reduces the volume of + RPC traffic. Also move startup delay in blockwork from datanode + to namenode. This fixes a problem where restarting the namenode + triggered a lot of uneeded replication. (Hairong Kuang via cutting) + +37. HADOOP-183. If the DFS namenode is restarted with different + minimum and/or maximum replication counts, existing files' + replication counts are now automatically adjusted to be within the + newly configured bounds. (Hairong Kuang via cutting) + +38. HADOOP-186. Better error handling in TaskTracker's top-level + loop. Also improve calculation of time to send next heartbeat. + (omalley via cutting) + +39. HADOOP-187. Add two MapReduce examples/benchmarks. One creates + files containing random data. The second sorts the output of the + first. (omalley via cutting) + +40. HADOOP-185. Fix so that, when a task tracker times out making the + RPC asking for a new task to run, the job tracker does not think + that it is actually running the task returned. (omalley via cutting) + +41. HADOOP-190. If a child process hangs after it has reported + completion, its output should not be lost. (Stack via cutting) + +42. HADOOP-184. Re-structure some test code to better support testing + on a cluster. (Mahadev Konar via cutting) + +43. HADOOP-191 Add streaming package, Hadoop's first contrib module. + This permits folks to easily submit MapReduce jobs whose map and + reduce functions are implemented by shell commands. Use + 'bin/hadoop jar build/hadoop-streaming.jar' to get details. + (Michel Tourn via cutting) + +44. HADOOP-189. Fix MapReduce in standalone configuration to + correctly handle job jar files that contain a lib directory with + nested jar files. (cutting) + +45. HADOOP-65. Initial version of record I/O framework that enables + the specification of record types and generates marshalling code + in both Java and C++. Generated Java code implements + WritableComparable, but is not yet otherwise used by + Hadoop. (Milind Bhandarkar via cutting) + +46. HADOOP-193. Add a MapReduce-based FileSystem benchmark. + (Konstantin Shvachko via cutting) + +47. HADOOP-194. Add a MapReduce-based FileSystem checker. This reads + every block in every file in the filesystem. (Konstantin Shvachko + via cutting) + +48. HADOOP-182. Fix so that lost task trackers to not change the + status of reduce tasks or completed jobs. Also fixes the progress + meter so that failed tasks are subtracted. (omalley via cutting) + +49. HADOOP-96. Logging improvements. Log files are now separate from + standard output and standard error files. Logs are now rolled. + Logging of all DFS state changes can be enabled, to facilitate + debugging. (Hairong Kuang via cutting) + + +Release 0.1.1 - 2006-04-08 + + 1. Added CHANGES.txt, logging all significant changes to Hadoop. (cutting) + + 2. Fix MapReduceBase.close() to throw IOException, as declared in the + Closeable interface. This permits subclasses which override this + method to throw that exception. (cutting) + + 3. Fix HADOOP-117. Pathnames were mistakenly transposed in + JobConf.getLocalFile() causing many mapred temporary files to not + be removed. (Raghavendra Prabhu via cutting) + + 4. Fix HADOOP-116. Clean up job submission files when jobs complete. + (cutting) + + 5. Fix HADOOP-125. Fix handling of absolute paths on Windows (cutting) + +Release 0.1.0 - 2006-04-01 + + 1. The first release of Hadoop. + diff --git a/aarch64/share/doc/hadoop/common/LICENSE.txt b/aarch64/share/doc/hadoop/common/LICENSE.txt new file mode 100644 index 0000000..6ccfd09 --- /dev/null +++ b/aarch64/share/doc/hadoop/common/LICENSE.txt @@ -0,0 +1,284 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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(Jinghui Wang via brandonli) + + HDFS-5256. Use guava LoadingCache to implement DFSClientCache. (Haohui Mai + via brandonli) + + HDFS-5308. Replace HttpConfig#getSchemePrefix with implicit schemes in HDFS + JSP. (Haohui Mai via jing9) + + OPTIMIZATIONS + + BUG FIXES + + HDFS-5139. Remove redundant -R option from setrep. + + HDFS-5251. Race between the initialization of NameNode and the http + server. (Haohui Mai via suresh) + + HDFS-5258. Skip tests in TestHDFSCLI that are not applicable on Windows. + (Chuan Liu via cnauroth) + + HDFS-5186. TestFileJournalManager fails on Windows due to file handle leaks. + (Chuan Liu via cnauroth) + + HDFS-5031. BlockScanner scans the block multiple times. (Vinay via Arpit + Agarwal) + + HDFS-5268. NFS write commit verifier is not set in a few places (brandonli) + + HDFS-5265. Namenode fails to start when dfs.https.port is unspecified. + (Haohui Mai via jing9) + + HDFS-5255. Distcp job fails with hsftp when https is enabled in insecure + cluster. (Arpit Agarwal) + + HDFS-5279. Guard against NullPointerException in NameNode JSP pages before + initialization of FSNamesystem. (cnauroth) + + HDFS-5289. Race condition in TestRetryCacheWithHA#testCreateSymlink causes + spurious test failure. (atm) + + HDFS-5300. FSNameSystem#deleteSnapshot() should not check owner in case of + permissions disabled. (Vinay via jing9) + + HDFS-5306. Datanode https port is not available at the namenode. (Suresh + Srinivas via brandonli) + + HDFS-5299. DFS client hangs in updatePipeline RPC when failover happened. + (Vinay via jing9) + + HDFS-5259. Support client which combines appended data with old data + before sends it to NFS server. (brandonli) + +Release 2.1.1-beta - 2013-09-23 + + INCOMPATIBLE CHANGES + + NEW FEATURES + + HDFS-4962 Use enum for nfs constants (Nicholas SZE via jing9) + + HDFS-5071 Change hdfs-nfs parent project to hadoop-project (brandonli) + + HDFS-4763 Add script changes/utility for starting NFS gateway (brandonli) + + HDFS-5076 Add MXBean methods to query NN's transaction information and + JournalNode's journal status. (jing9) + + HDFS-5104 Support dotdot name in NFS LOOKUP operation (brandonli) + + HDFS-5107 Fix array copy error in Readdir and Readdirplus responses + (brandonli) + + HDFS-5110 Change FSDataOutputStream to HdfsDataOutputStream for opened + streams to fix type cast error. (brandonli) + + HDFS-5069 Include hadoop-nfs and hadoop-hdfs-nfs into hadoop dist for + NFS deployment (brandonli) + + HDFS-4947 Add NFS server export table to control export by hostname or + IP range (Jing Zhao via brandonli) + + HDFS-5078 Support file append in NFSv3 gateway to enable data streaming + to HDFS (brandonli) + + HDFS-5136 MNT EXPORT should give the full group list which can mount the + exports (brandonli) + + HDFS-5118. Provide testing support for DFSClient to drop RPC responses. + (jing9) + + HDFS-5085. Refactor o.a.h.nfs to support different types of + authentications. (jing9) + + HDFS-5067 Support symlink operations in NFS gateway. (brandonli) + + HDFS-5199 Add more debug trace for NFS READ and WRITE. (brandonli) + + HDFS-5234 Move RpcFrameDecoder out of the public API. + (Haohui Mai via brandonli) + + IMPROVEMENTS + + HDFS-4513. Clarify in the WebHDFS REST API that all JSON respsonses may + contain additional properties. (szetszwo) + + HDFS-5061. Make FSNameSystem#auditLoggers an unmodifiable list. + (Arpit Agarwal via suresh) + + HDFS-4905. Add appendToFile command to "hdfs dfs". (Arpit Agarwal via + cnauroth) + + HDFS-4926. Namenode webserver's page has a tooltip that is inconsistent + with the datanode HTML link. (Vivek Ganesan via jing9) + + HDFS-5047. Supress logging of full stack trace of quota and lease + exceptions. (Robert Parker via kihwal) + + HDFS-5111. Remove duplicated error message for snapshot commands when + processing invalid arguments. (jing9) + + HDFS-5045. Add more unit tests for retry cache to cover all AtMostOnce + methods. (jing9) + + HDFS-3245. Add metrics and web UI for cluster version summary. (Ravi + Prakash via kihwal) + + HDFS-5128. Allow multiple net interfaces to be used with HA namenode RPC + server. (kihwal) + + HDFS-5150. Allow per NN SPN for internal SPNEGO. (kihwal) + + HDFS-4680. Audit logging of delegation tokens for MR tracing. (Andrew Wang) + + HDFS-5212. Refactor RpcMessage and NFS3Response to support different + types of authentication information. (jing9) + + HDFS-4971. Move IO operations out of locking in OpenFileCtx. (brandonli and + jing9) + + OPTIMIZATIONS + + BUG FIXES + + HDFS-5043. For HdfsFileStatus, set default value of childrenNum to -1 + instead of 0 to avoid confusing applications. (brandonli) + + HDFS-5028. LeaseRenewer throws ConcurrentModificationException when timeout. + (zhaoyunjiong via szetszwo) + + HDFS-4993. Fsck can fail if a file is renamed or deleted. (Robert Parker + via kihwal) + + HDFS-5091. Support for spnego keytab separate from the JournalNode keytab + for secure HA. (jing9) + + HDFS-5051. nn fails to download checkpointed image from snn in some + setups. (Vinay and suresh via suresh) + + HDFS-4898. BlockPlacementPolicyWithNodeGroup.chooseRemoteRack() fails to + properly fallback to local rack. (szetszwo) + + HDFS-4632. globStatus using backslash for escaping does not work on Windows. + (Chuan Liu via cnauroth) + + HDFS-5080. BootstrapStandby not working with QJM when the existing NN is + active. (jing9) + + HDFS-5099. Namenode#copyEditLogSegmentsToSharedDir should close + EditLogInputStreams upon finishing. (Chuan Liu via cnauroth) + + HDFS-2994. If lease soft limit is recovered successfully + the append can fail. (Tao Luo via shv) + + HDFS-5100. TestNamenodeRetryCache fails on Windows due to incorrect cleanup. + (Chuan Liu via cnauroth) + + HDFS-5103. TestDirectoryScanner fails on Windows. (Chuan Liu via cnauroth) + + HDFS-5102. Snapshot names should not be allowed to contain slash characters. + (jing9) + + HDFS-5105. TestFsck fails on Windows. (Chuan Liu via arp) + + HDFS-5106. TestDatanodeBlockScanner fails on Windows due to incorrect path + format. (Chuan Liu via cnauroth) + + HDFS-4594. WebHDFS open sets Content-Length header to what is specified by + length parameter rather than how much data is actually returned. (cnauroth) + + HDFS-5124. DelegationTokenSecretManager#retrievePassword can cause deadlock + in NameNode. (Daryn Sharp via jing9) + + HDFS-5132. Deadlock in NameNode between SafeModeMonitor#run and + DatanodeManager#handleHeartbeat. (kihwal) + + HDFS-5077. NPE in FSNamesystem.commitBlockSynchronization(). + (Plamen Jeliazkov via shv) + + HDFS-5140. Too many safemode monitor threads being created in the standby + namenode causing it to fail with out of memory error. (jing9) + + HDFS-5159. Secondary NameNode fails to checkpoint if error occurs + downloading edits on first checkpoint. (atm) + + HDFS-5192. NameNode may fail to start when + dfs.client.test.drop.namenode.response.number is set. (jing9) + + HDFS-5219. Add configuration keys for retry policy in WebHDFSFileSystem. + (Haohui Mai via jing9) + + HDFS-5231. Fix broken links in the document of HDFS Federation. (Haohui Mai + via jing9) + + HDFS-5249. Fix dumper thread which may die silently. (brandonli) + +Release 2.1.0-beta - 2013-08-22 + + INCOMPATIBLE CHANGES + + HDFS-4053. Increase the default block size. (eli) + + HDFS-4305. Add a configurable limit on number of blocks per file, and min + block size. (Andrew Wang via atm) + + HDFS-4434. Provide a mapping from INodeId to INode. (suresh) + + HDFS-2802. Add HDFS Snapshot feature. (See breakdown of tasks below for + subtasks and contributors) + + HDFS-4866. Protocol buffer support cannot compile under C. (Arpit Agarwal via + cnauroth) + + HDFS-5083. Update the HDFS compatibility version range. (kihwal) + + NEW FEATURES + + HDFS-1804. Add a new block-volume device choosing policy that looks at + free space. (atm) + + HDFS-4296. Reserve layout version for release 1.2.0. (suresh) + + HDFS-4334. Add a unique id to INode. (Brandon Li via szetszwo) + + HDFS-4339. Persist inode id in fsimage and editlog. (Brandon Li via + suresh) + + HDFS-4340. Update addBlock() to inculde inode id as additional argument. + (Brandon Li via suresh) + + HDFS-4502. JsonUtil.toFileStatus(..) should check if the fileId property + exists. (Brandon Li via suresh) + + HDFS-2576. Enhances the DistributedFileSystem's create API so that clients + can specify favored datanodes for a file's blocks. (ddas) + + HDFS-347. DFS read performance suboptimal when client co-located on nodes + with data. (Colin Patrick McCabe via todd and atm) + + HADOOP-8562. Enhancements to support Hadoop on Windows Server and Windows + Azure environments. (See breakdown of tasks below for subtasks and + contributors) + + HDFS-3601. Add BlockPlacementPolicyWithNodeGroup to support block placement + with 4-layer network topology. (Junping Du via szetszwo) + + HDFS-3495. Update Balancer to support new NetworkTopology with NodeGroup. + (Junping Du via szetszwo) + + HDFS-4659 Support setting execution bit for regular files (Brandon Li via sanjay) + + HDFS-4762 Provide HDFS based NFSv3 and Mountd implementation (brandonli) + + HDFS-4372. Track NameNode startup progress. (cnauroth) + + HDFS-4373. Add HTTP API for querying NameNode startup progress. (cnauroth) + + HDFS-4374. Display NameNode startup progress in UI. (cnauroth) + + HDFS-4974. Add Idempotent and AtMostOnce annotations to namenode + protocol methods. (suresh) + + HDFS-4979. Implement retry cache on Namenode. (suresh) + + HDFS-5025. Record ClientId and CallId in EditLog to enable rebuilding + retry cache in case of HA failover. (Jing Zhao via suresh) + + IMPROVEMENTS + + HDFS-4461. DirectoryScanner: volume path prefix takes up memory for every + block that is scanned (Colin Patrick McCabe) + + HDFS-4222. NN is unresponsive and loses heartbeats from DNs when + configured to use LDAP and LDAP has issues. (Xiaobo Peng, suresh) + + HDFS-4304. Make FSEditLogOp.MAX_OP_SIZE configurable. (Colin Patrick + McCabe via atm) + + HDFS-4518. Finer grained metrics for HDFS capacity. + (Arpit Agarwal via suresh) + + HDFS-4519. Support overriding jsvc binary and log file locations + when launching secure datanode. (Chris Nauroth via suresh) + + HDFS-4569. Small image transfer related cleanups. + (Andrew Wang via suresh) + + HDFS-4521. Invalid network toploogies should not be cached. (Colin Patrick + McCabe via atm) + + HDFS-4246. The exclude node list should be more forgiving, for each output + stream. (harsh via atm) + + HDFS-4635. Move BlockManager#computeCapacity to LightWeightGSet. (suresh) + + HDFS-4621. Additional logging to help diagnose slow QJM syncs. (todd) + + HDFS-4618. Default transaction interval for checkpoints is too low. (todd) + + HDFS-4525. Provide an API for knowing that whether file is closed or not. + (SreeHari via umamahesh) + + HDFS-3940. Add Gset#clear method and clear the block map when namenode is + shutdown. (suresh) + + HDFS-4679. Namenode operation checks should be done in a consistent + manner. (suresh) + + HDFS-4693. Some test cases in TestCheckpoint do not clean up after + themselves. (Arpit Agarwal, suresh via suresh) + + HDFS-3817. Avoid printing SafeModeException stack trace. + (Brandon Li via suresh) + + HDFS-4124. Refactor INodeDirectory#getExistingPathINodes() to enable + returning more than INode array. (Jing Zhao via suresh) + + HDFS-4151. Change the methods in FSDirectory to pass INodesInPath instead + of INode[] as a parameter. (szetszwo) + + HDFS-4129. Add utility methods to dump NameNode in memory tree for + testing. (szetszwo via suresh) + + HDFS-4152. Add a new class BlocksMapUpdateInfo for the parameter in + INode.collectSubtreeBlocksAndClear(..). (Jing Zhao via szetszwo) + + HDFS-4206. Change the fields in INode and its subclasses to private. + (szetszwo) + + HDFS-4215. Remove locking from addToParent(..) since it is used in image + loading, and add INode.isFile(). (szetszwo) + + HDFS-4243. When replacing an INodeDirectory, the parent pointers of the + children of the child have to be updated to the new child. (Jing Zhao + via szetszwo) + + HDFS-4209. Clean up the addNode/addChild/addChildNoQuotaCheck methods in + FSDirectory and INodeDirectory. (szetszwo) + + HDFS-4346. Add SequentialNumber as a base class for INodeId and + GenerationStamp. (szetszwo) + + HDFS-4721. Speed up lease recovery by avoiding stale datanodes and choosing + the datanode with the most recent heartbeat as the primary. (Varun Sharma + via szetszwo) + + HDFS-4804. WARN when users set the block balanced preference percent below + 0.5 or above 1.0. (Stephen Chu via atm) + + HDFS-4698. Provide client-side metrics for remote reads, local reads, and + short-circuit reads. (Colin Patrick McCabe via atm) + + HDFS-3498. Support replica removal in BlockPlacementPolicy and make + BlockPlacementPolicyDefault extensible for reusing code in subclasses. + (Junping Du via szetszwo) + + HDFS-4234. Use generic code for choosing datanode in Balancer. (szetszwo) + + HDFS-4880. Print the image and edits file loaded by the namenode in the + logs. (Arpit Agarwal via suresh) + + HDFS-2572. Remove unnecessary double-check in DN#getHostName. (harsh) + + HDFS-2857. Cleanup BlockInfo class. (suresh) + + HDFS-3009. Remove duplicate code in DFSClient#isLocalAddress by using + NetUtils. (Hari Mankude via suresh) + + HDFS-4914. Use DFSClient.Conf instead of Configuration. (szetszwo) + + HDFS-4883. complete() should verify fileId. (Tao Luo via shv) + + HDFS-4772. Add number of children in HdfsFileStatus. (brandonli) + + HDFS-4932. Avoid a wide line on the name node webUI if we have more Journal + nodes. (Fengdong Yu via cnauroth) + + HDFS-4908. Reduce snapshot inode memory usage. (szetszwo) + + HDFS-4645. Move from randomly generated block ID to sequentially generated + block ID. (Arpit Agarwal via szetszwo) + + HDFS-4912. Cleanup FSNamesystem#startFileInternal. (suresh) + + HDFS-4903. Print trash configuration and trash emptier state in + namenode log. (Arpit Agarwal via suresh) + + HDFS-4992. Make balancer's mover thread count and dispatcher thread count + configurable. (Max Lapan via szetszwo) + + HDFS-4996. ClientProtocol#metaSave can be made idempotent by overwriting the + output file instead of appending to it. (cnauroth) + + HADOOP-9418. Add symlink support to DistributedFileSystem (Andrew Wang via + Colin Patrick McCabe) + + HDFS-5007. Replace hard-coded property keys with DFSConfigKeys fields. + (Kousuke Saruta via jing9) + + HDFS-5008. Make ClientProtocol#abandonBlock() idempotent. (jing9) + + HADOOP-9760. Move GSet and related classes to common from HDFS. + (suresh) + + HDFS-5020. Make DatanodeProtocol#blockReceivedAndDeleted idempotent. + (jing9) + + HDFS-5024. Make DatanodeProtocol#commitBlockSynchronization idempotent. + (Arpit Agarwal via jing9) + + HDFS-3880. Use Builder to build RPC server in HDFS. + (Brandon Li and Junping Du via szetszwo) + + OPTIMIZATIONS + + HDFS-4465. Optimize datanode ReplicasMap and ReplicaInfo. (atm) + + HDFS-5027. On startup, DN should scan volumes in parallel. (atm) + + BUG FIXES + + HDFS-4626. ClientProtocol#getLinkTarget should throw an exception for + non-symlink and non-existent paths. (Andrew Wang via cmccabe) + + HDFS-3934. duplicative dfs_hosts entries handled wrong. (Colin Patrick + McCabe) + + HDFS-4470. Several HDFS tests attempt file operations on invalid HDFS + paths when running on Windows. (Chris Nauroth via suresh) + + HDFS-4471. Namenode WebUI file browsing does not work with wildcard + addresses configured. (Andrew Wang via atm) + + HDFS-4342. Directories configured in dfs.namenode.edits.dir.required + but not in dfs.namenode.edits.dir are silently ignored. (Arpit Agarwal + via szetszwo) + + HDFS-4482. ReplicationMonitor thread can exit with NPE due to the race + between delete and replication of same file. (umamahesh) + + HDFS-4269. Datanode rejects all datanode registrations from localhost + in single-node developer setup on Windows. (Chris Nauroth via suresh) + + HDFS-4235. When outputting XML, OfflineEditsViewer can't handle some edits + containing non-ASCII strings. (Colin Patrick McCabe via atm) + + HDFS-4541. Set hadoop.log.dir and hadoop.id.str when starting secure + datanode to write the logs to right dir by default. (Arpit Gupta via + suresh) + + HDFS-4540. Namenode http server should use the web authentication + keytab for spnego principal. (Arpit Gupta via suresh) + + HDFS-4544. Error in deleting blocks should not do check disk, for + all types of errors. (Arpit Agarwal via suresh) + + HDFS-4565. Use DFSUtil.getSpnegoKeytabKey() to get the spnego keytab key + in secondary namenode and namenode http server. (Arpit Gupta via suresh) + + HDFS-4571. WebHDFS should not set the service hostname on the server side. + (tucu) + + HDFS-4013. TestHftpURLTimeouts throws NPE. (Chao Shi via suresh) + + HDFS-4592. Default values for access time precision are out of sync between + hdfs-default.xml and the code. (atm) + + HDFS-4522. LightWeightGSet expects incrementing a volatile to be atomic. + (Colin Patrick McCabe via atm) + + HDFS-4484. libwebhdfs compilation broken with gcc 4.6.2. (Colin Patrick + McCabe via atm) + + HDFS-4595. When short circuit read is fails, DFSClient does not fallback + to regular reads. (suresh) + + HDFS-4583. TestNodeCount fails. (Ivan Mitic via suresh) + + HDFS-4591. HA clients can fail to fail over while Standby NN is performing + long checkpoint. (atm) + + HDFS-3277. fail over to loading a different FSImage if the first one we + try to load is corrupt. (Colin Patrick McCabe and Andrew Wang via atm) + + HDFS-4596. Shutting down namenode during checkpointing can lead to md5sum + error. (Andrew Wang via atm) + + HDFS-4614. FSNamesystem#getContentSummary should use getPermissionChecker + helper method. (atm) + + HDFS-4620. Documentation for dfs.namenode.rpc-address specifies wrong + format. (Sandy Ryza via atm) + + HDFS-4609. TestAuditLogs should release log handles between tests. + (Ivan Mitic via szetszwo) + + HDFS-4598. Fix the default value of ConcatSourcesParam and the WebHDFS doc. + (szetszwo) + + HDFS-4655. DNA_FINALIZE is logged as being an unknown command by the DN + when received from the standby NN. (atm) + + HDFS-4656. DN heartbeat loop can be briefly tight. (atm) + + HDFS-4658. Standby NN will log that it has received a block report "after + becoming active" (atm) + + HDFS-4646. createNNProxyWithClientProtocol ignores configured timeout + value (Jagane Sundar via cos) + + HDFS-3981. Fix handling of FSN lock in getBlockLocations. (Xiaobo Peng + and todd via todd) + + HDFS-4676. TestHDFSFileSystemContract should set MiniDFSCluster variable + to null to free up memory. (suresh) + + HDFS-4669. TestBlockPoolManager fails using IBM java. (Tian Hong Wang via + suresh) + + HDFS-4643. Fix flakiness in TestQuorumJournalManager. (todd) + + HDFS-4639. startFileInternal() should not increment generation stamp. + (Plamen Jeliazkov via shv) + + HDFS-4695. TestEditLog leaks open file handles between tests. + (Ivan Mitic via suresh) + + HDFS-4737. JVM path embedded in fuse binaries. (Sean Mackrory via atm) + + HDFS-4739. NN can miscalculate the number of extra edit log segments to + retain. (atm) + + HDFS-4745. TestDataTransferKeepalive#testSlowReader has race condition that + causes sporadic failure. (Chris Nauroth via suresh) + + HDFS-4768. File handle leak in datanode when a block pool is removed. + (Chris Nauroth via suresh) + + HDFS-4748. MiniJournalCluster#restartJournalNode leaks resources, which + causes sporadic test failures. (Chris Nauroth via suresh) + + HDFS-4733. Make HttpFS username pattern configurable. (tucu via atm) + + HDFS-4778. Fixes some issues that the first patch on HDFS-2576 missed. + (ddas) + + HDFS-4785. Concat operation does not remove concatenated files from + InodeMap. (suresh) + + HDFS-4784. NPE in FSDirectory.resolvePath(). (Brandon Li via suresh) + + HDFS-4810. several HDFS HA tests have timeouts that are too short. (Chris + Nauroth via atm) + + HDFS-4799. Corrupt replica can be prematurely removed from + corruptReplicas map. (todd via kihwal) + + HDFS-4751. TestLeaseRenewer#testThreadName flakes. (Andrew Wang via atm) + + HDFS-4533. start-dfs.sh ignores additional parameters besides -upgrade. + (Fengdong Yu via suresh) + + HDFS-4765. Permission check of symlink deletion incorrectly throws + UnresolvedLinkException. (Andrew Wang via atm) + + HDFS-4300. TransferFsImage.downloadEditsToStorage should use a tmp file for + destination. (Andrew Wang via atm) + + HDFS-4813. Add volatile to BlocksMap.blocks so that the replication thread + can see the updated value. (Jing Zhao via szetszwo) + + HDFS-3180. Add socket timeouts to WebHdfsFileSystem. (Chris Nauroth via + szetszwo) + + HDFS-4787. Create a new HdfsConfiguration before each TestDFSClientRetries + testcases. (Tian Hong Wang via atm) + + HDFS-4830. Typo in config settings for AvailableSpaceVolumeChoosingPolicy + in hdfs-default.xml. (atm) + + HDFS-4824. FileInputStreamCache.close leaves dangling reference to + FileInputStreamCache.cacheCleaner. (Colin Patrick McCabe via todd) + + HDFS-4298. StorageRetentionManager spews warnings when used with QJM. (atm) + + HDFS-4725. Fix HDFS file handle leaks in FSEditLog, NameNode, + OfflineEditsBinaryLoader and some tests. (Chris Nauroth via szetszwo) + + HDFS-4825. webhdfs / httpfs tests broken because of min block size change. + (Andrew Wang via suresh) + + HDFS-4780. Use the correct relogin method for services. (Robert Parker via + kihwal) + + HDFS-4827. Slight update to the implementation of API for handling favored + nodes in DFSClient (ddas) + + HDFS-4865. Remove sub resource warning from httpfs log at startup time. + (ywskycn via tucu) + + HDFS-4240. For nodegroup-aware block placement, when a node is excluded, + the nodes in the same nodegroup should also be excluded. (Junping Du + via szetszwo) + + HDFS-4261. Fix bugs in Balaner causing infinite loop and + TestBalancerWithNodeGroup timeing out. (Junping Du via szetszwo) + + HDFS-4382. Fix typo MAX_NOT_CHANGED_INTERATIONS. (Ted Yu via suresh) + + HDFS-4840. ReplicationMonitor gets NPE during shutdown. (kihwal) + + HADOOP-8957 HDFS tests for AbstractFileSystem#IsValidName should be overridden for + embedded file systems like ViewFs (Chris Nauroth via Sanjay Radia) + + HDFS-4586. TestDataDirs.testGetDataDirsFromURIs fails with all directories + in dfs.datanode.data.dir are invalid. (Ivan Mitic via atm) + + HDFS-3792. Fix two findbugs introduced by HDFS-3695 (todd) + + HADOOP-9635 Fix potential Stack Overflow in DomainSocket.c (V. Karthik Kumar + via cmccabe) + + HDFS-3163. TestHDFSCLI.testAll fails if the user name is not all lowercase. + (Brandon Li via atm) + + HDFS-4845. FSNamesystem.deleteInternal should acquire write-lock before + changing the inode map. (Arpit Agarwal via szetszwo) + + HDFS-4910. TestPermission failed in branch-2. (Chuan Liu via cnauroth) + + HDFS-4906. HDFS Output streams should not accept writes after being + closed. (atm) + + HDFS-4917. Start-dfs.sh cannot pass the parameters correctly. + (Fengdong Yu via suresh) + + HDFS-4205. fsck fails with symlinks. (jlowe) + + HDFS-4927. CreateEditsLog creates inodes with an invalid inode ID, which then + cannot be loaded by a namenode. (cnauroth) + + HDFS-4944. WebHDFS cannot create a file path containing characters that must + be URI-encoded, such as space. (cnauroth) + + HDFS-4888. Refactor and fix FSNamesystem.getTurnOffTip. (Ravi Prakash via + kihwal) + + HDFS-4943. WebHdfsFileSystem does not work when original file path has + encoded chars. (Jerry He via szetszwo) + + HDFS-4948. mvn site for hadoop-hdfs-nfs fails. (brandonli) + + HDFS-4954. In nfs, OpenFileCtx.getFlushedOffset() should handle IOException. + (Brandon Li via szetszwo) + + HDFS-4887. TestNNThroughputBenchmark exits abruptly. (kihwal) + + HDFS-4980. Incorrect logging.properties file for hadoop-httpfs. + (Mark Grover via suresh) + + HDFS-4999. Fix TestShortCircuitLocalRead on branch-2. (cmccabe via kihwal) + + HDFS-4687. TestDelegationTokenForProxyUser#testWebHdfsDoAs is flaky with + JDK7. (Andrew Wang via atm) + + HDFS-5003. TestNNThroughputBenchmark failed caused by existing directories. + (Xi Fang via cnauroth) + + HDFS-5018. Misspelled DFSConfigKeys#DFS_NAMENODE_STALE_DATANODE_INTERVAL_DEFAULT + in javadoc of DatanodeInfo#isStale(). (Ted Yu via jing9) + + HDFS-4602. TestBookKeeperHACheckpoints fails. (umamahesh) + + HDFS-5016. Deadlock in pipeline recovery causes Datanode to be marked dead. + (suresh) + + HDFS-5228. The RemoteIterator returned by DistributedFileSystem.listFiles + may throw NullPointerException. (szetszwo and cnauroth via szetszwo) + + BREAKDOWN OF HDFS-347 SUBTASKS AND RELATED JIRAS + + HDFS-4353. Encapsulate connections to peers in Peer and PeerServer classes. + (Colin Patrick McCabe via todd) + + HDFS-4354. Create DomainSocket and DomainPeer and associated unit tests. + (Colin Patrick McCabe via todd) + + HDFS-4356. BlockReaderLocal should use passed file descriptors rather than paths. + (Colin Patrick McCabe via todd) + + HDFS-4388. DomainSocket should throw AsynchronousCloseException when appropriate. + (Colin Patrick McCabe via todd) + + HDFS-4390. Bypass UNIX domain socket unit tests when they cannot be run. + (Colin Patrick McCabe via todd) + + HDFS-4400. DFSInputStream#getBlockReader: last retries should ignore the cache + (Colin Patrick McCabe via todd) + + HDFS-4401. Fix bug in DomainSocket path validation + (Colin Patrick McCabe via todd) + + HDFS-4402. Some small DomainSocket fixes: avoid findbugs warning, change + log level, etc. (Colin Patrick McCabe via todd) + + HDFS-4418. increase default FileInputStreamCache size (todd) + + HDFS-4416. Rename dfs.datanode.domain.socket.path to dfs.domain.socket.path + (Colin Patrick McCabe via todd) + + HDFS-4417. Fix case where local reads get disabled incorrectly + (Colin Patrick McCabe and todd via todd) + + HDFS-4433. Make TestPeerCache not flaky (Colin Patrick McCabe via todd) + + HDFS-4438. TestDomainSocket fails when system umask is set to 0002. (Colin + Patrick McCabe via atm) + + HDFS-4440. Avoid annoying log message when dfs.domain.socket.path is not + set. (Colin Patrick McCabe via atm) + + HDFS-4473. Don't create domain socket unless we need it. (Colin Patrick McCabe via atm) + + HDFS-4485. DN should chmod socket path a+w. (Colin Patrick McCabe via atm) + + HDFS-4453. Make a simple doc to describe the usage and design of the + shortcircuit read feature. (Colin Patrick McCabe via atm) + + HDFS-4496. DFSClient: don't create a domain socket unless we need it (Colin + Patrick McCabe via todd) + + HDFS-347: style cleanups (Colin Patrick McCabe via atm) + + HDFS-4538. Allow use of legacy blockreader (Colin Patrick McCabe via todd) + + HDFS-4661. A few little code cleanups of some HDFS-347-related code. (Colin + Patrick McCabe via atm) + + BREAKDOWN OF HADOOP-8562 and HDFS-3602 SUBTASKS AND RELATED JIRAS + + HDFS-4145. Merge hdfs cmd line scripts from branch-1-win. (David Lao, + Bikas Saha, Lauren Yang, Chuan Liu, Thejas M Nair and Ivan Mitic via suresh) + + HDFS-4163. HDFS distribution build fails on Windows. (Chris Nauroth via + suresh) + + HDFS-4316. branch-trunk-win contains test code accidentally added during + work on fixing tests on Windows. (Chris Nauroth via suresh) + + HDFS-4297. Fix issues related to datanode concurrent reading and writing on + Windows. (Arpit Agarwal, Chuan Liu via suresh) + + HDFS-4573. Fix TestINodeFile on Windows. (Arpit Agarwal via suresh) + + HDFS-4572. Fix TestJournal failures on Windows. (Arpit Agarwal via suresh) + + HDFS-4287. HTTPFS tests fail on Windows. (Chris Nauroth via suresh) + + HDFS-4593. TestSaveNamespace fails on Windows. (Arpit Agarwal via suresh) + + HDFS-4582. TestHostsFiles fails on Windows. (Ivan Mitic via suresh) + + HDFS-4603. TestMiniDFSCluster fails on Windows. (Ivan Mitic via suresh) + + HDFS-4604. TestJournalNode fails on Windows. (Ivan Mitic via suresh) + + HDFS-4607. In TestGetConf.testGetSpecificKey(), use a platform-specific + line separator; otherwise, it fails on Windows. (Ivan Mitic via szetszwo) + + HDFS-4625. Make TestNNWithQJM#testNewNamenodeTakesOverWriter work on + Windows. (Ivan Mitic via suresh) + + HDFS-4674. TestBPOfferService fails on Windows due to failure parsing + datanode data directory as URI. (Chris Nauroth via suresh) + + HDFS-4615. Fix TestDFSShell failures on Windows. (Arpit Agarwal + via szetszwo) + + HDFS-4584. Skip TestNNWithQJM.testNewNamenodeTakesOverWriter() on Windows. + (Arpit Agarwal via szetszwo) + + HDFS-4732. Fix TestDFSUpgradeFromImage which fails on Windows due to + failure to unpack old image tarball that contains hard links. + (Chris Nauroth via szetszwo) + + HDFS-4741. TestStorageRestore#testStorageRestoreFailure fails on Windows. + (Arpit Agarwal via suresh) + + HDFS-4743. TestNNStorageRetentionManager fails on Windows. + (Chris Nauroth via suresh) + + HDFS-4740. Fixes for a few test failures on Windows. + (Arpit Agarwal via suresh) + + HDFS-4722. TestGetConf#testFederation times out on Windows. + (Ivan Mitic via suresh) + + HDFS-4705. Address HDFS test failures on Windows because of invalid + dfs.namenode.name.dir. (Ivan Mitic via suresh) + + HDFS-4734. HDFS Tests that use ShellCommandFencer are broken on Windows. + (Arpit Agarwal via suresh) + + HDFS-4610. Use common utils FileUtil#setReadable/Writable/Executable and + FileUtil#canRead/Write/Execute. (Ivan Mitic via suresh) + + HDFS-4677. Editlog should support synchronous writes. (ivanmi) + + HDFS-4752. TestRBWBlockInvalidation fails on Windows due to file locking. + (Chris Nauroth via suresh) + + HDFS-4783. TestDelegationTokensWithHA#testHAUtilClonesDelegationTokens fails + on Windows. (cnauroth) + + HDFS-4818. Several HDFS tests that attempt to make directories unusable do + not work correctly on Windows. (cnauroth) + + BREAKDOWN OF HDFS-2802 HDFS SNAPSHOT SUBTASKS AND RELATED JIRAS + + HDFS-4076. Support snapshot of single files. (szetszwo) + + HDFS-4082. Add editlog opcodes for snapshot create and delete operations. + (suresh via szetszwo) + + HDFS-4086. Add editlog opcodes to allow and disallow snapshots on a + directory. (Brandon Li via suresh) + + HDFS-4083. Protocol changes for snapshots. (suresh) + + HDFS-4077. Add support for Snapshottable Directory. (szetszwo via suresh) + + HDFS-4087. Protocol changes for listSnapshots functionality. + (Brandon Li via suresh) + + HDFS-4079. Add SnapshotManager which maintains a list for all the + snapshottable directories and supports snapshot methods such as setting a + directory to snapshottable and creating a snapshot. (szetszwo) + + HDFS-4078. Handle replication in snapshots. (szetszwo) + + HDFS-4084. Provide CLI support to allow and disallow snapshot + on a directory. (Brondon Li via suresh) + + HDFS-4091. Add snapshot quota to limit the number of snapshots allowed. + (szetszwo) + + HDFS-4097. Provide CLI support for createSnapshot. (Brandon Li via suresh) + + HDFS-4092. Update file deletion logic for snapshot so that the current inode + is removed from the circular linked list; and if some blocks at the end of + the block list no longer belong to any other inode, collect them and update + the block list. (szetszwo) + + HDFS-4111. Support snapshot of subtrees. (szetszwo via suresh) + + HDFS-4119. Complete the allowSnapshot code and add a test for it. (szetszwo) + + HDFS-4133. Add testcases for testing basic snapshot functionalities. + (Jing Zhao via suresh) + + HDFS-4116. Add auditlog for some snapshot operations. (Jing Zhao via suresh) + + HDFS-4095. Add some snapshot related metrics. (Jing Zhao via suresh) + + HDFS-4141. Support directory diff - the difference between the current state + and a previous snapshot of an INodeDirectory. (szetszwo) + + HDFS-4146. Use getter and setter in INodeFileWithLink to access blocks and + initialize root directory as snapshottable. (szetszwo) + + HDFS-4149. Implement the disallowSnapshot(..) in FSNamesystem and add + resetSnapshottable(..) to SnapshotManager. (szetszwo) + + HDFS-4147. When there is a snapshot in a subtree, deletion of the subtree + should fail. (Jing Zhao via szetszwo) + + HDFS-4150. Update the inode in the block map when a snapshotted file or a + snapshot file is deleted. (Jing Zhao via szetszwo) + + HDFS-4159. Rename should fail when the destination directory is + snapshottable and has snapshots. (Jing Zhao via szetszwo) + + HDFS-4170. Add snapshot information to INodesInPath. (szetszwo) + + HDFS-4177. Add a snapshot parameter to INodeDirectory.getChildrenList() for + selecting particular snapshot children list views. (szetszwo) + + HDFS-4148. Disallow write/modify operations on files and directories in a + snapshot. (Brandon Li via suresh) + + HDFS-4188. Add Snapshot.ID_COMPARATOR for comparing IDs and fix a bug in + ReadOnlyList.Util.binarySearch(..). (szetszwo) + + HDFS-4187. Add tests for replication handling in snapshots. (Jing Zhao via + szetszwo) + + HDFS-4196. Support renaming of snapshots. (Jing Zhao via szetszwo) + + HDFS-4175. Additional snapshot tests for more complicated directory + structure and modifications. (Jing Zhao via suresh) + + HDFS-4293. Fix TestSnapshot failure. (Jing Zhao via suresh) + + HDFS-4317. Change INode and its subclasses to support HDFS-4103. (szetszwo) + + HDFS-4103. Support O(1) snapshot creation. (szetszwo) + + HDFS-4330. Support snapshots up to the snapshot limit. (szetszwo) + + HDFS-4357. Fix a bug that if an inode is replaced, further INode operations + should apply to the new inode. (Jing Zhao via szetszwo) + + HDFS-4230. Support listing of all the snapshottable directories. (Jing Zhao + via szetszwo) + + HDFS-4244. Support snapshot deletion. (Jing Zhao via szetszwo) + + HDFS-4245. Include snapshot related operations in TestOfflineEditsViewer. + (Jing Zhao via szetszwo) + + HDFS-4395. In INodeDirectorySnapshottable's constructor, the passed-in dir + could be an INodeDirectoryWithSnapshot. (Jing Zhao via szetszwo) + + HDFS-4397. Fix a bug in INodeDirectoryWithSnapshot.Diff.combinePostDiff(..) + that it may put the wrong node into the deleted list. (szetszwo) + + HDFS-4407. Change INodeDirectoryWithSnapshot.Diff.combinePostDiff(..) to + merge-sort like and keep the postDiff parameter unmodified. (szetszwo) + + HDFS-4098. Add FileWithSnapshot, INodeFileUnderConstructionWithSnapshot and + INodeFileUnderConstructionSnapshot for supporting append to snapshotted + files. (szetszwo) + + HDFS-4126. Add reading/writing snapshot information to FSImage. + (Jing Zhao via suresh) + + HDFS-4436. Change INode.recordModification(..) to return only the current + inode and remove the updateCircularList parameter from some methods in + INodeDirectoryWithSnapshot.Diff. (szetszwo) + + HDFS-4429. When the latest snapshot exists, INodeFileUnderConstruction + should be replaced with INodeFileWithSnapshot but not INodeFile. + (Jing Zhao via szetszwo) + + HDFS-4441. Move INodeDirectoryWithSnapshot.Diff and the related classes to a + package. (szetszwo) + + HDFS-4432. Support INodeFileUnderConstructionWithSnapshot in FSImage + saving/loading. (Jing Zhao via suresh) + + HDFS-4131. Add capability to namenode to get snapshot diff. (Jing Zhao via + suresh) + + HDFS-4447. Refactor INodeDirectoryWithSnapshot for supporting general INode + diff lists. (szetszwo) + + HDFS-4189. Renames the getMutableXxx methods to getXxx4Write and fix a bug + that some getExistingPathINodes calls should be getINodesInPath4Write. + (szetszwo) + + HDFS-4361. When listing snapshottable directories, only return those + where the user has permission to take snapshots. (Jing Zhao via szetszwo) + + HDFS-4464. Combine collectSubtreeBlocksAndClear with deleteDiffsForSnapshot + and rename it to destroySubtreeAndCollectBlocks. (szetszwo) + + HDFS-4414. Add support for getting snapshot diff from DistributedFileSystem. + (Jing Zhao via suresh) + + HDFS-4446. Support file snapshots with diff lists. (szetszwo) + + HDFS-4480. Eliminate the file snapshot circular linked list. (szetszwo) + + HDFS-4481. Change fsimage to support snapshot file diffs. (szetszwo) + + HDFS-4500. Refactor snapshot INode methods. (szetszwo) + + HDFS-4487. Fix snapshot diff report for HDFS-4446. (Jing Zhao via szetszwo) + + HDFS-4431. Support snapshot in OfflineImageViewer. (Jing Zhao via szetszwo) + + HDFS-4503. Update computeContentSummary(..), spaceConsumedInTree(..) and + diskspaceConsumed(..) in INode for snapshot. (szetszwo) + + HDFS-4499. Fix file/directory/snapshot deletion for file diff. (Jing Zhao + via szetszwo) + + HDFS-4524. Update SnapshotManager#snapshottables when loading fsimage. + (Jing Zhao via szetszwo) + + HDFS-4520. Support listing snapshots under a snapshottable directory using + ls. (Jing Zhao via szetszwo) + + HDFS-4514. Add CLI for supporting snapshot rename, diff report, and + snapshottable directory listing. (Jing Zhao via szetszwo) + + HDFS-4523. Fix INodeFile replacement, TestQuota and javac errors from trunk + merge. (szetszwo) + + HDFS-4507. Update quota verification for snapshots. (szetszwo) + + HDFS-4545. With snapshots, FSDirectory.unprotectedSetReplication(..) always + changes file replication but it may or may not changes block replication. + (szetszwo) + + HDFS-4557. Fix FSDirectory#delete when INode#cleanSubtree returns 0. + (Jing Zhao via szetszwo) + + HDFS-4579. Annotate snapshot tests. (Arpit Agarwal via suresh) + + HDFS-4574. Move Diff to the util package. (szetszwo) + + HDFS-4563. Update namespace/diskspace usage after deleting snapshots. + (Jing Zhao via szetszwo) + + HDFS-4144. Create test for all snapshot-related metrics. + (Jing Zhao via suresh) + + HDFS-4556. Add snapshotdiff and LsSnapshottableDir tools to hdfs script. + (Arpit Agarwal via szetszwo) + + HDFS-4534. Add INodeReference in order to support rename with snapshots. + (szetszwo) + + HDFS-4616. Update the FilesDeleted metric while deleting file/dir in the + current tree. (Jing Zhao via szetszwo) + + HDFS-4627. Fix FSImageFormat#Loader NPE and synchronization issues. + (Jing Zhao via suresh) + + HDFS-4612. Not to use INode.getParent() when generating snapshot diff + report. (Jing Zhao via szetszwo) + + HDFS-4636. Update quota usage when deleting files/dirs that were created + after taking the latest snapshot. (Jing Zhao via szetszwo) + + HDFS-4648. For snapshot deletion, when merging the diff from to-delete + snapshot to the prior snapshot, make sure files/directories created after + the prior snapshot get deleted. (Jing Zhao via szetszwo) + + HDFS-4637. INodeDirectory#replaceSelf4Quota may incorrectly convert a newly + created directory to an INodeDirectoryWithSnapshot. (Jing Zhao via szetszwo) + + HDFS-4611. Update FSImage for INodeReference. (szetszwo) + + HDFS-4647. Rename should call setLocalName after an inode is removed from + snapshots. (Arpit Agarwal via szetszwo) + + HDFS-4684. Use INode id for image serialization when writing INodeReference. + (szetszwo) + + HDFS-4675. Fix rename across snapshottable directories. (Jing Zhao via + szetszwo) + + HDFS-4692. Use timestamp as default snapshot names. (szetszwo) + + HDFS-4666. Define ".snapshot" as a reserved inode name so that users cannot + create a file/directory with ".snapshot" as the name. If ".snapshot" is + used in a previous version of HDFS, it must be renamed before upgrade; + otherwise, upgrade will fail. (szetszwo) + + HDFS-4700. Fix the undo section of rename with snapshots. (Jing Zhao via + szetszwo) + + HDFS-4529. Disallow concat when one of the src files is in some snapshot. + (szetszwo) + + HDFS-4550. Refactor INodeDirectory.INodesInPath to a standalone class. + (szetszwo) + + HDFS-4707. Add snapshot methods to FilterFileSystem and fix findbugs + warnings. (szetszwo) + + HDFS-4706. Do not replace root inode for disallowSnapshot. (szetszwo) + + HDFS-4717. Change the path parameter type of the snapshot methods in + HdfsAdmin from String to Path. (szetszwo) + + HDFS-4708. Add snapshot user documentation. (szetszwo) + + HDFS-4726. Fix test failures after merging the INodeId-INode mapping + from trunk. (Jing Zhao via szetszwo) + + HDFS-4727. Update inodeMap after deleting files/directories/snapshots. + (Jing Zhao via szetszwo) + + HDFS-4719. Remove AbstractINodeDiff.Factory and move its methods to + AbstractINodeDiffList. (Arpit Agarwal via szetszwo) + + HDFS-4735. DisallowSnapshot throws IllegalStateException for nested + snapshottable directories. (Jing Zhao via szetszwo) + + HDFS-4738. Changes AbstractINodeDiff to implement Comparable<Integer>, and + fix javadoc and other warnings. (szetszwo) + + HDFS-4686. Update quota computation for rename and INodeReference. + (Jing Zhao via szetszwo) + + HDFS-4729. Fix OfflineImageViewer and permission checking for snapshot + operations. (Jing Zhao via szetszwo) + + HDFS-4749. Use INodeId to identify the corresponding directory node in + FSImage saving/loading. (Jing Zhao via szetszwo) + + HDFS-4742. Fix appending to a renamed file with snapshot. (Jing Zhao via + szetszwo) + + HDFS-4755. Fix AccessControlException message and moves "implements + LinkedElement" from INode to INodeWithAdditionalFields. (szetszwo) + + HDFS-4650. Fix a bug in FSDirectory and add more unit tests for rename with + existence of snapshottable directories and snapshots. (Jing Zhao via + szetszwo) + + HDFS-4650. When passing two non-existing snapshot names to snapshotDiff, it + returns success if the names are the same. (Jing Zhao via szetszwo) + + HDFS-4767. If a directory is snapshottable, do not replace it when clearing + quota. (Jing Zhao via szetszwo) + + HDFS-4578. Restrict snapshot IDs to 24-bit wide. (Arpit Agarwal via + szetszwo) + + HDFS-4773. Fix bugs in quota usage computation and OfflineImageViewer. + (Jing Zhao via szetszwo) + + HDFS-4760. Update inodeMap after node replacement. (Jing Zhao via szetszwo) + + HDFS-4758. Disallow nested snapshottable directories and unwrap + RemoteException. (szetszwo) + + HDFS-4781. Fix a NullPointerException when listing .snapshot under + a non-existing directory. (szetszwo) + + HDFS-4791. Update and fix deletion of reference inode. (Jing Zhao via + szetszwo) + + HDFS-4798. Update computeContentSummary() for the reference nodes in + snapshots. (szetszwo) + + HDFS-4800. Fix INodeDirectoryWithSnapshot#cleanDeletedINode. (Jing Zhao via + szetszwo) + + HDFS-4801. lsSnapshottableDir throws IllegalArgumentException when root is + snapshottable. (Jing Zhao via szetszwo) + + HDFS-4802. Disallowing snapshot on / twice should throw SnapshotException + but not IllegalStateException. (Jing Zhao via szetszwo) + + HDFS-4806. In INodeDirectoryWithSnapshot, use isInLatestSnapshot() to + determine if an added/removed child should be recorded in the snapshot diff. + (Jing Zhao via szetszwo) + + HDFS-4809. When a QuotaExceededException is thrown during rename, the quota + usage should be subtracted back. (Jing Zhao via szetszwo) + + HDFS-4842. Identify the correct prior snapshot when deleting a + snapshot under a renamed subtree. (jing9) + + HDFS-4846. Clean up snapshot CLI commands output stacktrace for invalid + arguments. (Jing Zhao via brandonli) + + HDFS-4857. Snapshot.Root and AbstractINodeDiff#snapshotINode should not be + put into INodeMap when loading FSImage. (jing9) + + HDFS-4863. The root directory should be added to the snapshottable + directory list while loading fsimage. (jing9) + + HDFS-4848. copyFromLocal and renaming a file to ".snapshot" should output + that ".snapshot" is a reserved name. (Jing Zhao via brandonli) + + HDFS-4826. TestNestedSnapshots times out due to repeated slow edit log + flushes when running on virtualized disk. (Chris Nauroth via szetszwo) + + HDFS-4876. Fix the javadoc of FileWithSnapshot and move FileDiffList to + FileWithSnapshot. (szetszwo) + + HDFS-4850. Fix OfflineImageViewer to work on fsimages with empty files or + snapshots. (jing9) + + HDFS-4877. Snapshot: fix the scenario where a directory is renamed under + its prior descendant. (jing9) + + HDFS-4873. callGetBlockLocations returns incorrect number of blocks for + snapshotted files. (jing9) + + HDFS-4819. Update Snapshot doc to clarify that nested snapshots are not + allowed. (szetszwo) + + HDFS-4902. DFSClient.getSnapshotDiffReport should use string path rather + than o.a.h.fs.Path. (Binglin Chang via jing9) + + HDFS-4875. Add a test for testing snapshot file length. + (Arpit Agarwal via jing9) + + HDFS-4841. FsShell commands using secure webhfds fail ClientFinalizer + shutdown hook. (rkanter via tucu) + + HDFS-4951. FsShell commands using secure httpfs throw exceptions due + to missing TokenRenewer. (rknater via tucu) + + HDFS-4969. WebhdfsFileSystem expects non-standard WEBHDFS Json element. + (rkanter via tucu) + + HDFS-4797. BlockScanInfo does not override equals(..) and hashCode() + consistently. (szetszwo) + + HDFS-4978. Make disallowSnapshot idempotent. (jing9) + + HDFS-5005. Move SnapshotException and SnapshotAccessControlException + to o.a.h.hdfs.protocol. (jing9) + + HDFS-4982. JournalNode should relogin from keytab before fetching logs + from other JNs (todd) + +Release 2.0.5-alpha - 06/06/2013 + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + OPTIMIZATIONS + + BUG FIXES + +Release 2.0.4-alpha - 2013-04-25 + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + OPTIMIZATIONS + + BUG FIXES + +Release 2.0.3-alpha - 2013-02-06 + + INCOMPATIBLE CHANGES + + HDFS-4122. Cleanup HDFS logs and reduce the size of logged messages. + (suresh) + + HDFS-4362. GetDelegationTokenResponseProto does not handle null token. + (suresh) + + HDFS-4367. GetDataEncryptionKeyResponseProto does not handle null + response. (suresh) + + HDFS-4364. GetLinkTargetResponseProto does not handle null path. (suresh) + + HDFS-4369. GetBlockKeysResponseProto does not handle null response. + (suresh) + + HDFS-4451. hdfs balancer command returns exit code 1 on success instead + of 0. (Joshua Blatt via suresh) + + HDFS-4350. Make enabling of stale marking on read and write paths + independent. (Andrew Wang via suresh) + + + NEW FEATURES + + HDFS-2656. Add libwebhdfs, a pure C client based on WebHDFS. + (Jaimin D Jetly and Jing Zhao via szetszwo) + + HDFS-3912. Detect and avoid stale datanodes for writes. + (Jing Zhao via suresh) + + HDFS-4059. Add number of stale DataNodes to metrics. (Jing Zhao via suresh) + + HDFS-4155. libhdfs implementation of hsync API (Liang Xie via todd) + + HDFS-4213. Add an API to hsync for updating the last block length at the + namenode. (Jing Zhao via szetszwo) + + HDFS-3077. Implement QuorumJournalManager, a distributed mechanism for + reliably storing HDFS edit logs. See dedicated section below for breakdown + of subtasks. + + IMPROVEMENTS + + HDFS-3925. Prettify PipelineAck#toString() for printing to a log + (Andrew Wang via todd) + + HDFS-3939. NN RPC address cleanup. (eli) + + HDFS-3373. Change DFSClient input stream socket cache to global static and + add a thread to cleanup expired cache entries. (John George via szetszwo) + + HDFS-3896. Add descriptions for dfs.namenode.rpc-address and + dfs.namenode.servicerpc-address to hdfs-default.xml. (Jeff Lord via atm) + + HDFS-3996. Add debug log removed in HDFS-3873 back. (eli) + + HDFS-3916. libwebhdfs (C client) code cleanups. + (Colin Patrick McCabe via eli) + + HDFS-3813. Log error message if security and WebHDFS are enabled but + principal/keytab are not configured. (Stephen Chu via atm) + + HDFS-3483. Better error message when hdfs fsck is run against a ViewFS + config. (Stephen Fritz via atm) + + HDFS-3682. MiniDFSCluster#init should provide more info when it fails. + (todd via eli) + + HDFS-4008. TestBalancerWithEncryptedTransfer needs a timeout. (eli) + + HDFS-4007. Rehabilitate bit-rotted unit tests under + hadoop-hdfs-project/hadoop-hdfs/src/test/unit/ + (Colin Patrick McCabe via todd) + + HDFS-4041. Hadoop HDFS Maven protoc calls must not depend on external + sh script. (Chris Nauroth via suresh) + + HADOOP-8911. CRLF characters in source and text files. + (Raja Aluri via suresh) + + HDFS-4037. Rename the getReplication() method in BlockCollection to + getBlockReplication(). (szetszwo) + + HDFS-4036. Remove "throws UnresolvedLinkException" from + FSDirectory.unprotectedAddFile(..). (Jing Zhao via szetszwo) + + HDFS-2946. HA: Put a cap on the number of completed edits files retained + by the NN. (atm) + + HDFS-4029. GenerationStamp should use an AtomicLong. (eli) + + HDFS-4068. DatanodeID and DatanodeInfo member should be private. (eli) + + HDFS-4073. Two minor improvements to FSDirectory. (Jing Zhao via szetszwo) + + HDFS-4074. Remove the unused default constructor from INode. (Brandon Li + via szetszwo) + + HDFS-4088. Remove "throws QuotaExceededException" from an + INodeDirectoryWithQuota constructor. (szetszwo) + + HDFS-4099. Clean up replication code and add more javadoc. (szetszwo) + + HDFS-4107. Add utility methods for casting INode to INodeFile and + INodeFileUnderConstruction. (szetszwo) + + HDFS-4112. A few improvements on INodeDirectory include adding a utility + method for casting; avoiding creation of new empty lists; cleaning up + some code and rewriting some javadoc. (szetszwo) + + HDFS-4121. Add namespace declarations in hdfs .proto files for languages + other than java. (Binglin Chang via suresh) + + HDFS-3573. Supply NamespaceInfo when instantiating JournalManagers. + (todd and ivank via umamahesh) + + HDFS-3695. Genericize format() to non-file JournalManagers. + (todd via umamahesh) + + HDFS-3789. JournalManager#format() should be able to throw IOException. + (Ivan Kelly via umamahesh) + + HDFS-3809. Make BKJM use protobufs for all serialization with ZK. + (Ivan Kelly via umamhesh) + + HDFS-3916. libwebhdfs testing code cleanup. (Jing Zhao via suresh) + + HDFS-4143. Change blocks to private in INodeFile and renames isLink() to + isSymlink() in INode. (szetszwo) + + HDFS-4046. Rename ChecksumTypeProto enum NULL since it is illegal in + C/C++. (Binglin Chang via suresh) + + HDFS-4048. Use ERROR instead of INFO for volume failure logs. + (Stephen Chu via eli) + + HDFS-1322. Document umask in DistributedFileSystem#mkdirs javadocs. + (Colin Patrick McCabe via eli) + + HDFS-4038. Override toString() for BookKeeperEditLogInputStream. + (Vinay via umamahesh) + + HDFS-4214. OfflineEditsViewer should print out the offset at which it + encountered an error. (Colin Patrick McCabe via atm) + + HDFS-4199. Provide test for HdfsVolumeId. (Ivan A. Veselovsky via atm) + + HDFS-3049. During the normal NN startup process, fall back on a different + edit log if we see one that is corrupt (Colin Patrick McCabe via todd) + + HDFS-3571. Allow EditLogFileInputStream to read from a remote URL (todd) + + HDFS-4110. Refine a log printed in JNStorage. (Liang Xie via suresh) + + HDFS-4153. Add START_MSG/SHUTDOWN_MSG for JournalNode. (liang xie via atm) + + HDFS-3935. Add JournalNode to the start/stop scripts (Andy Isaacson via todd) + + HDFS-4268. Remove redundant enum NNHAStatusHeartbeat.State. (shv) + + HDFS-3680. Allow customized audit logging in HDFS FSNamesystem. (Marcelo + Vanzin via atm) + + HDFS-4130. BKJM: The reading for editlog at NN starting using bkjm is not efficient. + (Han Xiao via umamahesh) + + HDFS-4326. bump up Tomcat version for HttpFS to 6.0.36. (tucu via acmurthy) + + HDFS-4270. Introduce soft and hard limits for max replication so that + replications of the highest priority are allowed to choose a source datanode + that has reached its soft limit but not the hard limit. (Derek Dagit via + szetszwo) + + HADOOP-9173. Add security token protobuf definition to common and + use it in hdfs. (suresh) + + HDFS-4030. BlockManager excessBlocksCount and + postponedMisreplicatedBlocksCount should be AtomicLongs. (eli) + + HDFS-4031. Update findbugsExcludeFile.xml to include findbugs 2 + exclusions. (eli) + + HDFS-4033. Miscellaneous findbugs 2 fixes. (eli) + + HDFS-4034. Remove redundant null checks. (eli) + + HDFS-4035. LightWeightGSet and LightWeightHashSet increment a + volatile without synchronization. (eli) + + HDFS-4032. Specify the charset explicitly rather than rely on the + default. (eli) + + HDFS-4363. Combine PBHelper and HdfsProtoUtil and remove redundant + methods. (suresh) + + HDFS-4377. Some trivial DN comment cleanup. (eli) + + HDFS-4381. Document fsimage format details in FSImageFormat class javadoc. + (Jing Zhao via suresh) + + HDFS-4375. Use token request messages defined in hadoop common. + (suresh) + + HDFS-4392. Use NetUtils#getFreeSocketPort in MiniDFSCluster. + (Andrew Purtell via suresh) + + HDFS-4393. Make empty request and responses in protocol translators can be + static final members. (Brandon Li via suresh) + + HDFS-4403. DFSClient can infer checksum type when not provided by reading + first byte (todd) + + HDFS-4259. Improve pipeline DN replacement failure message (harsh) + + HDFS-3598. WebHDFS support for file concat. (Plamen Jeliazkov via shv) + + HDFS-4456. Add concat to HttpFS and WebHDFS REST API docs. (plamenj2003 via tucu) + + HDFS-3131. Improve TestStorageRestore. (Brandon Li via atm) + + OPTIMIZATIONS + + HDFS-3429. DataNode reads checksums even if client does not need them (todd) + + BUG FIXES + + HDFS-3919. MiniDFSCluster:waitClusterUp can hang forever. + (Andy Isaacson via eli) + + HDFS-3924. Multi-byte id in HdfsVolumeId. (Andrew Wang via atm) + + HDFS-3936. MiniDFSCluster shutdown races with BlocksMap usage. (eli) + + HDFS-3951. datanode web ui does not work over HTTPS when datanode is started in secure mode. (tucu) + + HDFS-3949. NameNodeRpcServer#join should join on both client and + server RPC servers. (eli) + + HDFS-3932. NameNode Web UI broken if the rpc-address is set to the wildcard. + (Colin Patrick McCabe via eli) + + HDFS-3931. TestDatanodeBlockScanner#testBlockCorruptionPolicy2 is broken. + (Andy Isaacson via eli) + + HDFS-3964. Make NN log of fs.defaultFS debug rather than info. (eli) + + HDFS-3992. Method org.apache.hadoop.hdfs.TestHftpFileSystem.tearDown() + sometimes throws NPEs. (Ivan A. Veselovsky via atm) + + HDFS-3753. Tests don't run with native libraries. + (Colin Patrick McCabe via eli) + + HDFS-4000. TestParallelLocalRead fails with "input ByteBuffers + must be direct buffers". (Colin Patrick McCabe via eli) + + HDFS-3999. HttpFS OPEN operation expects len parameter, it should be length. (tucu) + + HDFS-4006. TestCheckpoint#testSecondaryHasVeryOutOfDateImage + occasionally fails due to unexpected exit. (todd via eli) + + HDFS-4018. testMiniDFSClusterWithMultipleNN is missing some + cluster cleanup. (eli) + + HDFS-4020. TestRBWBlockInvalidation may time out. (eli) + + HDFS-4021. Misleading error message when resources are low on the NameNode. + (Christopher Conner via atm) + + HDFS-4044. Duplicate ChecksumType definition in HDFS .proto files. + (Binglin Chang via suresh) + + HDFS-4049. Fix hflush performance regression due to nagling delays + (todd) + + HDFS-3678. Edit log files are never being purged from 2NN. (atm) + + HDFS-4058. DirectoryScanner may fail with IOOB if the directory + scanning threads return out of volume order. (eli) + + HDFS-3985. Add timeouts to TestMulitipleNNDataBlockScanner. (todd via eli) + + HDFS-4061. TestBalancer and TestUnderReplicatedBlocks need timeouts. (eli) + + HDFS-3997. OfflineImageViewer incorrectly passes value of imageVersion when + visiting IS_COMPRESSED element. (Mithun Radhakrishnan via atm) + + HDFS-4055. TestAuditLogs is flaky. (Binglin Chang via eli) + + HDFS-4072. On file deletion remove corresponding blocks pending + replications. (Jing Zhao via suresh) + + HDFS-4022. Replication not happening for appended block. + (Vinay via umamahesh) + + HDFS-3948. Do not use hflush in TestWebHDFS.testNamenodeRestart() since the + out stream returned by WebHdfsFileSystem does not support it. (Jing Zhao + via szetszwo) + + HDFS-3616. Fix a ConcurrentModificationException bug that BP actor threads + may not be shutdown properly in DataNode. (Jing Zhao via szetszwo) + + HDFS-4127. Log message is not correct in case of short of replica. + (Junping Du via suresh) + + HADOOP-8994. TestDFSShell creates file named "noFileHere", making further + tests hard to understand (Andy Isaacson via daryn) + + HDFS-3804. TestHftpFileSystem fails intermittently with JDK7 + (Trevor Robinson via daryn) + + HDFS-4132. When libwebhdfs is not enabled, nativeMiniDfsClient frees + uninitialized memory (Colin Patrick McCabe via todd) + + HDFS-1331. dfs -test should work like /bin/test (Andy Isaacson via daryn) + + HDFS-3979. For hsync, datanode should wait for the local sync to complete + before sending ack. (Lars Hofhansl via szetszwo) + + HDFS-3810. Implement format() for BKJM (Ivan Kelly via umamahesh) + + HDFS-3625. Fix TestBackupNode by properly initializing edit log during + startup. (Junping Du via todd) + + HDFS-4138. BackupNode startup fails due to uninitialized edit log. + (Kihwal Lee via shv) + + HDFS-4162. Some malformed and unquoted HTML strings are returned from + datanode web ui. (Darek Dagit via suresh) + + HDFS-4164. fuse_dfs: add -lrt to the compiler command line on Linux. + (Colin Patrick McCabe via eli) + + HDFS-3921. NN will prematurely consider blocks missing when entering active + state while still in safe mode. (atm) + + HDFS-4106. BPServiceActor#lastHeartbeat, lastBlockReport and + lastDeletedReport should be volatile. (Jing Zhao via suresh) + + HDFS-4139. fuse-dfs RO mode still allows file truncation. + (Colin Patrick McCabe via eli) + + HDFS-4104. dfs -test -d prints inappropriate error on nonexistent directory + (Andy Isaacson via daryn) + + HDFS-3623. BKJM: zkLatchWaitTimeout hard coded to 6000. Make use of ZKSessionTimeout instead. + (umamahesh) + + HDFS-4100. Fix all findbug security warings. (Liang Xie via eli) + + HDFS-3507. DFS#isInSafeMode needs to execute only on Active NameNode. + (Vinay via atm) + + HDFS-4105. The SPNEGO user for secondary namenode should use the web + keytab. (Arpit Gupta via jitendra) + + HDFS-4156. Seeking to a negative position should throw an IOE. + (Eli Reisman via eli) + + HDFS-4171. WebHDFS and HttpFs should accept only valid Unix user + names. (tucu) + + HDFS-4178. Shell scripts should not close stderr (Andy Isaacson via daryn) + + HDFS-4179. BackupNode: allow reads, fix checkpointing, safeMode. (shv) + + HDFS-4216. Do not ignore QuotaExceededException when adding symlinks. + (szetszwo) + + HDFS-4242. Map.Entry is incorrectly used in LeaseManager since the behavior + of it is undefined after the iteration or modifications of the map. + (szetszwo) + + HDFS-4231. BackupNode: Introduce BackupState. (shv) + + HDFS-4238. Standby namenode should not do purging of shared + storage edits. (todd) + + HDFS-4282. TestEditLog.testFuzzSequences FAILED in all pre-commit test + (todd) + + HDFS-4236. Remove artificial limit on username length introduced in + HDFS-4171. (tucu via suresh) + + HDFS-4279. NameNode does not initialize generic conf keys when started + with -recover. (Colin Patrick McCabe via atm) + + HDFS-4291. edit log unit tests leave stray test_edit_log_file around + (Colin Patrick McCabe via todd) + + HDFS-4292. Sanity check not correct in RemoteBlockReader2.newBlockReader + (Binglin Chang via todd) + + HDFS-4295. Using port 1023 should be valid when starting Secure DataNode + (Stephen Chu via todd) + + HDFS-4294. Backwards compatibility is not maintained for TestVolumeId. + (Ivan A. Veselovsky and Robert Parker via atm) + + HDFS-2264. NamenodeProtocol has the wrong value for clientPrincipal in + KerberosInfo annotation. (atm) + + HDFS-4307. SocketCache should use monotonic time. (Colin Patrick McCabe + via atm) + + HDFS-4315. DNs with multiple BPs can have BPOfferServices fail to start + due to unsynchronized map access. (atm) + + HDFS-4140. fuse-dfs handles open(O_TRUNC) poorly. (Colin Patrick McCabe + via atm) + + HDFS-4308. addBlock() should persist file blocks once. + (Plamen Jeliazkov via shv) + + HDFS-4347. Avoid infinite waiting checkpoint to complete in TestBackupNode. + (Plamen Jeliazkov via shv) + + HDFS-4349. Add test for reading files from BackupNode. (shv) + + HDFS-4302. Fix fatal exception when starting NameNode with DEBUG logs + (Eugene Koontz via todd) + + HDFS-3970. Fix bug causing rollback of HDFS upgrade to result in bad + VERSION file. (Vinay and Andrew Wang via atm) + + HDFS-4306. PBHelper.convertLocatedBlock miss convert BlockToken. (Binglin + Chang via atm) + + HDFS-4384. test_libhdfs_threaded gets SEGV if JNIEnv cannot be + initialized. (Colin Patrick McCabe via eli) + + HDFS-4328. TestLargeBlock#testLargeBlockSize is timing out. (Chris Nauroth + via atm) + + HDFS-4274. BlockPoolSliceScanner does not close verification log during + shutdown. (Chris Nauroth via suresh) + + HDFS-1245. Pluggable block id generation. (shv) + + HDFS-4415. HostnameFilter should handle hostname resolution failures and + continue processing. (Robert Kanter via atm) + + HDFS-4359. Slow RPC responses from NN can prevent metrics collection on + DNs. (liang xie via atm) + + HDFS-4444. Add space between total transaction time and number of + transactions in FSEditLog#printStatistics. (Stephen Chu via suresh) + + HDFS-4428. FsDatasetImpl should disclose what the error is when a rename + fails. (Colin Patrick McCabe via atm) + + HDFS-4452. getAdditionalBlock() can create multiple blocks if the client + times out and retries. (shv) + + HDFS-4445. All BKJM ledgers are not checked while tailing, So failover will fail. + (Vinay via umamahesh) + + HDFS-4462. 2NN will fail to checkpoint after an HDFS upgrade from a + pre-federation version of HDFS. (atm) + + HDFS-4404. Create file failure when the machine of first attempted NameNode + is down. (Todd Lipcon via atm) + + HDFS-4344. dfshealth.jsp throws NumberFormatException when + dfs.hosts/dfs.hosts.exclude includes port number. (Andy Isaacson via atm) + + HDFS-4468. Use the new StringUtils methods added by HADOOP-9252 and fix + TestHDFSCLI and TestQuota. (szetszwo) + + HDFS-4458. In DFSUtil.getNameServiceUris(..), convert default fs URI using + NetUtils.createSocketAddr(..) for being consistent with other addresses. + (Binglin Chang via szetszwo) + + BREAKDOWN OF HDFS-3077 SUBTASKS + + HDFS-3077. Quorum-based protocol for reading and writing edit logs. + (todd, Brandon Li, and Hari Mankude via todd) + + HDFS-3694. Fix getEditLogManifest to fetch httpPort if necessary (todd) + + HDFS-3692. Support purgeEditLogs() call to remotely purge logs on JNs + (todd) + + HDFS-3693. JNStorage should read its storage info even before a writer + becomes active (todd) + + HDFS-3725. Fix QJM startup when individual JNs have gaps (todd) + + HDFS-3741. Exhaustive failure injection test for skipped RPCs (todd) + + HDFS-3773. TestNNWithQJM fails after HDFS-3741. (atm) + + HDFS-3793. Implement genericized format() in QJM (todd) + + HDFS-3795. QJM: validate journal dir at startup (todd) + + HDFS-3798. Avoid throwing NPE when finalizeSegment() is called on invalid + segment (todd) + + HDFS-3799. QJM: handle empty log segments during recovery (todd) + + HDFS-3797. QJM: add segment txid as a parameter to journal() RPC (todd) + + HDFS-3800. improvements to QJM fault testing (todd) + + HDFS-3823. QJM: TestQJMWithFaults fails occasionally because of missed + setting of HTTP port. (todd and atm) + + HDFS-3826. QJM: Some trivial logging / exception text improvements. (todd + and atm) + + HDFS-3839. QJM: hadoop-daemon.sh should be updated to accept "journalnode" + (eli) + + HDFS-3845. Fixes for edge cases in QJM recovery protocol (todd) + + HDFS-3877. QJM: Provide defaults for dfs.journalnode.*address (eli) + + HDFS-3863. Track last "committed" txid in QJM (todd) + + HDFS-3869. Expose non-file journal manager details in web UI (todd) + + HDFS-3884. Journal format() should reset cached values (todd) + + HDFS-3870. Add metrics to JournalNode (todd) + + HDFS-3891. Make selectInputStreams throw IOE instead of RTE (todd) + + HDFS-3726. If a logger misses an RPC, don't retry that logger until next + segment (todd) + + HDFS-3893. QJM: Make QJM work with security enabled. (atm) + + HDFS-3897. QJM: TestBlockToken fails after HDFS-3893. (atm) + + HDFS-3898. QJM: enable TCP_NODELAY for IPC (todd) + + HDFS-3885. QJM: optimize log sync when JN is lagging behind (todd) + + HDFS-3900. QJM: avoid validating log segments on log rolls (todd) + + HDFS-3901. QJM: send 'heartbeat' messages to JNs even when they are + out-of-sync (todd) + + HDFS-3899. QJM: Add client-side metrics (todd) + + HDFS-3914. QJM: acceptRecovery should abort current segment (todd) + + HDFS-3915. QJM: Failover fails with auth error in secure cluster (todd) + + HDFS-3906. QJM: quorum timeout on failover with large log segment (todd) + + HDFS-3840. JournalNodes log JournalNotFormattedException backtrace error + before being formatted (todd) + + HDFS-3894. QJM: testRecoverAfterDoubleFailures can be flaky due to IPC + client caching (todd) + + HDFS-3926. QJM: Add user documentation for QJM. (atm) + + HDFS-3943. QJM: remove currently-unused md5sum field (todd) + + HDFS-3950. QJM: misc TODO cleanup, improved log messages, etc. (todd) + + HDFS-3955. QJM: Make acceptRecovery() atomic. (todd) + + HDFS-3956. QJM: purge temporary files when no longer within retention + period (todd) + + HDFS-4004. TestJournalNode#testJournal fails because of test case execution + order (Chao Shi via todd) + + HDFS-4017. Unclosed FileInputStream in GetJournalEditServlet + (Chao Shi via todd) + + HDFS-4351. In BlockPlacementPolicyDefault.chooseTarget(..), numOfReplicas + needs to be updated when avoiding stale nodes. (Andrew Wang via szetszwo) + + HDFS-2908. Add apache license header for StorageReport.java. (Brandon Li + via tgraves) + + HDFS-4399. Fix RAT warnings by excluding images sub-dir in docs. (Thomas + Graves via acmurthy) + +Release 2.0.2-alpha - 2012-09-07 + + INCOMPATIBLE CHANGES + + HDFS-3446. HostsFileReader silently ignores bad includes/excludes + (Matthew Jacobs via todd) + + HDFS-3755. Creating an already-open-for-write file with overwrite=true fails + (todd) + + NEW FEATURES + + HDFS-744. Support hsync in HDFS. (Lars Hofhansl via szetszwo) + + HDFS-3042. Automatic failover support for NameNode HA (todd) + (see dedicated section below for breakdown of subtasks) + + HDFS-3518. Add a utility method HdfsUtils.isHealthy(uri) for checking if + the given HDFS is healthy. (szetszwo) + + HDFS-3113. httpfs does not support delegation tokens. (tucu) + + HDFS-3513. HttpFS should cache filesystems. (tucu) + + HDFS-3637. Add support for encrypting the DataTransferProtocol. (atm) + + HDFS-3150. Add option for clients to contact DNs via hostname. (eli) + + HDFS-2793. Add an admin command to trigger an edit log roll. (todd) + + HDFS-3703. Datanodes are marked stale if heartbeat is not received in + configured timeout and are selected as the last location to read from. + (Jing Zhao via suresh) + + IMPROVEMENTS + + HDFS-3040. TestMulitipleNNDataBlockScanner is misspelled. (Madhukara Phatak + via atm) + + HDFS-3390. DFSAdmin should print full stack traces of errors when DEBUG + logging is enabled. (atm) + + HDFS-3341. Change minimum RPC versions to respective SNAPSHOTs instead of + final releases. (todd) + + HDFS-3369. Rename {get|set|add}INode(..) methods in BlockManager and + BlocksMap to {get|set|add}BlockCollection(..). (John George via szetszwo) + + HDFS-3134. harden edit log loader against malformed or malicious input. + (Colin Patrick McCabe via eli) + + HDFS-3230. Cleanup DatanodeID creation in the tests. (eli) + + HDFS-3401. Cleanup DatanodeDescriptor creation in the tests. (eli) + + HDFS-3400. DNs should be able start with jsvc even if security is disabled. + (atm via eli) + + HDFS-3404. Make putImage in GetImageServlet infer remote address to fetch + from request. (atm) + + HDFS-3335. check for edit log corruption at the end of the log + (Colin Patrick McCabe via todd) + + HDFS-3417. Rename BalancerDatanode#getName to getDisplayName to be + consistent with Datanode. (eli) + + HDFS-3416. Cleanup DatanodeID and DatanodeRegistration + constructors used by testing. (eli) + + HDFS-3419. Cleanup LocatedBlock. (eli) + + HDFS-3440. More effectively limit stream memory consumption when reading + corrupt edit logs (Colin Patrick McCabe via todd) + + HDFS-3438. BootstrapStandby should not require a rollEdits on active node + (todd) + + HDFS-2885. Remove "federation" from the nameservice config options. + (Tsz Wo (Nicholas) Sze via eli) + + HDFS-3394. Do not use generic in INodeFile.getLastBlock(): the run-time + ClassCastException check is useless since generic type information is only + available in compile-time. (szetszwo) + + HDFS-3454. Balancer unconditionally logs InterruptedException at + INFO level on shutdown if security is enabled. (eli) + + HDFS-1013. Miscellaneous improvements to HTML markup for web UIs + (Eugene Koontz via todd) + + HDFS-3052. Change INodeFile and INodeFileUnderConstruction to package + private. (szetszwo) + + HDFS-3520. Add transfer rate logging to TransferFsImage. (eli) + + HDFS-3504. Support configurable retry policy in DFSClient for RPC + connections and RPC calls, and add MultipleLinearRandomRetry, a new retry + policy. (szetszwo) + + HDFS-3372. offlineEditsViewer should be able to read a binary + edits file with recovery mode. (Colin Patrick McCabe via eli) + + HDFS-3516. Check content-type in WebHdfsFileSystem. (szetszwo) + + HDFS-3535. Audit logging should log denied accesses. (Andy Isaacson via eli) + + HDFS-3481. Refactor HttpFS handling of JAX-RS query string parameters (tucu) + + HDFS-3572. Cleanup code which inits SPNEGO in HttpServer (todd) + + HDFS-3475. Make the replication monitor multipliers configurable. + (harsh via eli) + + HDFS-3343. Improve metrics for DN read latency (Andrew Wang via todd) + + HDFS-3170. Add more useful metrics for write latency (Matthew Jacobs via + todd) + + HDFS-3604. Add dfs.webhdfs.enabled to hdfs-default.xml. (eli) + + HDFS-2988. Improve error message when storage directory lock fails + (Miomir Boljanovic via harsh) + + HDFS-2391. Newly set BalancerBandwidth value is not displayed anywhere. + (harsh) + + HDFS-3067. NPE in DFSInputStream.readBuffer if read is repeated on + corrupted block. (Henry Robinson via atm) + + HDFS-3555. idle client socket triggers DN ERROR log + (should be INFO or DEBUG). (Andy Isaacson via harsh) + + HDFS-3568. fuse_dfs: add support for security. (Colin McCabe via atm) + + HDFS-3629. Fix the typo in the error message about inconsistent + storage layout version. (Brandon Li via harsh) + + HDFS-3613. GSet prints some INFO level values, which aren't + really very useful to all (Andrew Wang via harsh) + + HDFS-3611. NameNode prints unnecessary WARNs about edit log normally skipping + a few bytes. (Colin Patrick McCabe via harsh) + + HDFS-3582. Hook daemon process exit for testing. (eli) + + HDFS-3641. Move server Util time methods to common and use now + instead of System#currentTimeMillis. (eli) + + HDFS-3633. libhdfs: hdfsDelete should pass JNI_FALSE or JNI_TRUE. + (Colin Patrick McCabe via eli) + + HDFS-799. libhdfs must call DetachCurrentThread when a thread is destroyed. + (Colin Patrick McCabe via eli) + + HDFS-3306. fuse_dfs: don't lock release operations. + (Colin Patrick McCabe via eli) + + HDFS-3612. Single namenode image directory config warning can + be improved. (Andy Isaacson via harsh) + + HDFS-3606. libhdfs: create self-contained unit test. + (Colin Patrick McCabe via eli) + + HDFS-3539. libhdfs code cleanups. (Colin Patrick McCabe via eli) + + HDFS-3610. fuse_dfs: Provide a way to use the default (configured) NN URI. + (Colin Patrick McCabe via eli) + + HDFS-3663. MiniDFSCluster should capture the code path that led to + the first ExitException. (eli) + + HDFS-3659. Add missing @Override to methods across the hadoop-hdfs + project. (Brandon Li via harsh) + + HDFS-3537. Move libhdfs and fuse-dfs source to native subdirectories. + (Colin Patrick McCabe via eli) + + HDFS-3665. Add a test for renaming across file systems via a symlink. (eli) + + HDFS-3666. Plumb more exception messages to terminate. (eli) + + HDFS-3673. libhdfs: fix some compiler warnings. (Colin Patrick McCabe via eli) + + HDFS-3675. libhdfs: follow documented return codes. (Colin Patrick McCabe via eli) + + HDFS-1249. With fuse-dfs, chown which only has owner (or only group) + argument fails with Input/output error. (Colin Patrick McCabe via eli) + + HDFS-3583. Convert remaining tests to Junit4. (Andrew Wang via atm) + + HDFS-3711. Manually convert remaining tests to JUnit4. (Andrew Wang via atm) + + HDFS-3650. Use MutableQuantiles to provide latency histograms for various + operations. (Andrew Wang via atm) + + HDFS-3667. Add retry support to WebHdfsFileSystem. (szetszwo) + + HDFS-3291. add test that covers HttpFS working w/ a non-HDFS Hadoop + filesystem (tucu) + + HDFS-3634. Add self-contained, mavenized fuse_dfs test. (Colin Patrick + McCabe via atm) + + HDFS-3190. Simple refactors in existing NN code to assist + QuorumJournalManager extension. (todd) + + HDFS-3276. initializeSharedEdits should have a -nonInteractive flag (todd) + + HDFS-3765. namenode -initializeSharedEdits should be able to initialize + all shared storages. (Vinay and todd via todd) + + HDFS-3723. Add support -h, -help to all the commands. (Jing Zhao via + suresh) + + HDFS-3803. Change BlockPoolSliceScanner chatty INFO log to DEBUG. + (Andrew Purtell via suresh) + + HDFS-3802. StartupOption.name in HdfsServerConstants should be final. + (Jing Zhao via szetszwo) + + HDFS-3796. Speed up edit log tests by avoiding fsync() (todd) + + HDFS-2963. Console Output is confusing while executing metasave + (dfsadmin command). (Andrew Wang via eli) + + HDFS-3672. Expose disk-location information for blocks to enable better + scheduling. (Andrew Wang via atm) + + HDFS-2727. libhdfs should get the default block size from the server. + (Colin Patrick McCabe via eli) + + HDFS-3832. Remove protocol methods related to DistributedUpgrade. (suresh) + + HDFS-3819. Should check whether invalidate work percentage default value is + not greater than 1.0f. (Jing Zhao via jitendra) + + HDFS-3177. Update DFSClient and DataXceiver to handle different checkum + types in file checksum computation. (Kihwal Lee via szetszwo) + + HDFS-3844. Add @Override and remove {@inheritdoc} and unnecessary + imports. (Jing Zhao via suresh) + + HDFS-3853. Port MiniDFSCluster enableManagedDfsDirsRedundancy + option to branch-2. (Colin Patrick McCabe via eli) + + HDFS-3871. Change NameNodeProxies to use RetryUtils. (Arun C Murthy + via szetszwo) + + HDFS-3887. Remove redundant chooseTarget methods in BlockPlacementPolicy. + (Jing Zhao via szetszwo) + + HDFS-3888. Clean up BlockPlacementPolicyDefault. (Jing Zhao via szetszwo) + + HDFS-3907. Allow multiple users for local block readers. (eli) + + HDFS-3510. Editlog pre-allocation is performed prior to writing edits + to avoid partial edits case disk out of space. (Colin McCabe via todd) + + HDFS-3910. DFSTestUtil#waitReplication should timeout. (eli) + + HDFS-3920. libwebdhfs string processing and using strerror consistently + to handle all errors. (Jing Zhao via suresh) + + OPTIMIZATIONS + + HDFS-2982. Startup performance suffers when there are many edit log + segments. (Colin Patrick McCabe via todd) + + HDFS-2834. Add a ByteBuffer-based read API to DFSInputStream. + (Henry Robinson via todd) + + HDFS-3110. Use directRead API to reduce the number of buffer copies in + libhdfs (Henry Robinson via todd) + + HDFS-3697. Enable fadvise readahead by default. (todd) + + HDFS-2421. Improve the concurrency of SerialNumberMap in NameNode. + (Jing Zhao and Weiyan Wang via szetszwo) + + HDFS-3866. HttpFS POM should have property where to download tomcat from (zero45 via tucu) + + BUG FIXES + + HDFS-3385. The last block of INodeFileUnderConstruction is not + necessarily a BlockInfoUnderConstruction, so do not cast it in + FSNamesystem.recoverLeaseInternal(..). (szetszwo) + + HDFS-3414. Balancer does not find NameNode if rpc-address or + servicerpc-address are not set in client configs. (atm) + + HDFS-3031. Fix complete() and getAdditionalBlock() RPCs to be idempotent + (todd) + + HDFS-2759. Pre-allocate HDFS edit log files after writing version number. + (atm) + + HDFS-3413. TestFailureToReadEdits timing out. (atm) + + HDFS-3422. TestStandbyIsHot timeouts too aggressive (todd) + + HDFS-3433. GetImageServlet should allow administrative requestors when + security is enabled. (atm) + + HDFS-1153. dfsnodelist.jsp should handle invalid input parameters. + (Ravi Phulari via eli) + + HDFS-3434. InvalidProtocolBufferException when visiting DN + browseDirectory.jsp (eli) + + HDFS-2800. Fix cancellation of checkpoints in the standby node to be more + reliable. (todd) + + HDFS-3391. Fix InvalidateBlocks to compare blocks including their + generation stamps. (todd) + + HDFS-3444. hdfs groups command doesn't work with security enabled. (atm) + + HDFS-2717. BookKeeper Journal output stream doesn't check addComplete rc. + (Ivan Kelly via umamahesh) + + HDFS-3415. Make sure all layout versions are the same for all storage + directories in the Namenode. (Brandon Li via szetszwo) + + HDFS-3436. In DataNode.transferReplicaForPipelineRecovery(..), it should + use the stored generation stamp to check if the block is valid. (Vinay + via szetszwo) + + HDFS-3460. HttpFS proxyuser validation with Kerberos ON uses full + principal name. (tucu) + + HDFS-3058. HA: Bring BookKeeperJournalManager up to date with HA changes. + (Ivan Kelly via umamahesh) + + HDFS-3368. Missing blocks due to bad DataNodes coming up and down. (shv) + + HDFS-3452. BKJM:Switch from standby to active fails and NN gets shut down + due to delay in clearing of lock. (umamahesh) + + HDFS-3398. Client will not retry when primaryDN is down once it's just got pipeline. + (Amith D K via umamahesh) + + HDFS-3474. Cleanup Exception handling in BookKeeper journal manager. + (Ivan Kelly via umamahesh) + + HDFS-3468. Make BKJM-ZK session timeout configurable. (umamahesh) + + HDFS-3423. BKJM: NN startup is failing, when tries to recoverUnfinalizedSegments() + a bad inProgress_ ZNodes. (Ivan Kelly and Uma via umamahesh) + + HDFS-3441. Race condition between rolling logs at active NN and purging at standby. + (Rakesh R via umamahesh) + + HDFS-3484. hdfs fsck doesn't work if NN HTTP address is set to + 0.0.0.0 even if NN RPC address is configured. (atm via eli) + + HDFS-3486. offlineimageviewer can't read fsimage files that contain + persistent delegation tokens. (Colin Patrick McCabe via eli) + + HDFS-3487. offlineimageviewer should give byte offset information + when it encounters an exception. (Colin Patrick McCabe via eli) + + HDFS-3442. Incorrect count for Missing Replicas in FSCK report. (Andrew + Wang via atm) + + HDFS-2025. Go Back to File View link is not working in tail.jsp. + (Ashish and Sravan via umamahesh) + + HDFS-3501. Checkpointing with security enabled will stop working + after ticket lifetime expires. (atm via eli) + + HDFS-3266. DFSTestUtil#waitCorruptReplicas doesn't sleep between checks. + (Madhukara Phatak via atm) + + HDFS-3505. DirectoryScanner does not join all threads in shutdown. + (Colin Patrick McCabe via eli) + + HDFS-3485. DataTransferThrottler will over-throttle when currentTimeMillis + jumps (Andy Isaacson via todd) + + HDFS-2914. HA: Standby should not enter safemode when resources are low. + (Vinay via atm) + + HDFS-3235. MiniDFSClusterManager doesn't correctly support -format option. + (Henry Robinson via atm) + + HDFS-3514. Add missing TestParallelLocalRead. (Henry Robinson via atm) + + HDFS-3243. TestParallelRead timing out on jenkins. (Henry Robinson via todd) + + HDFS-3490. DatanodeWebHdfsMethods throws NullPointerException if + NamenodeRpcAddressParam is not set. (szetszwo) + + HDFS-2797. Fix misuses of InputStream#skip in the edit log code. + (Colin Patrick McCabe via eli) + + HDFS-3517. TestStartup should bind ephemeral ports. (eli) + + HDFS-3522. If a namenode is in safemode, it should throw SafeModeException + when getBlockLocations has zero locations. (Brandon Li via szetszwo) + + HDFS-3408. BKJM : Namenode format fails, if there is no BK root. (Rakesh R via umamahesh) + + HDFS-3389. Document the BKJM usage in Namenode HA. (umamahesh and Ivan Kelly via umamahesh) + + HDFS-3531. EditLogFileOutputStream#preallocate should check for + incomplete writes. (Colin Patrick McCabe via eli) + + HDFS-766. Error message not clear for set space quota out of boundary + values. (Jon Zuanich via atm) + + HDFS-3480. Multiple SLF4J binding warning. (Vinay via eli) + + HDFS-3524. Update TestFileLengthOnClusterRestart for HDFS-3522. (Brandon + Li via szetszwo) + + HDFS-3559. DFSTestUtil: use Builder class to construct DFSTestUtil + instances. (Colin Patrick McCabe via atm) + + HDFS-3551. WebHDFS CREATE should use client location for HTTP redirection. + (szetszwo) + + HDFS-3157. Fix a bug in the case that the generation stamps of the stored + block in a namenode and the reported block from a datanode do not match. + (Ashish Singhi via szetszwo) + + HDFS-3575. HttpFS does not log Exception Stacktraces (brocknoland via tucu) + + HDFS-3574. Fix small race and do some cleanup in GetImageServlet (todd) + + HDFS-3581. FSPermissionChecker#checkPermission sticky bit check + missing range check. (eli) + + HDFS-3541. Deadlock between recovery, xceiver and packet responder. + (Vinay via umamahesh) + + HDFS-3428. Move DelegationTokenRenewer to common (tucu) + + HDFS-3491. HttpFs does not set permissions correctly (tucu) + + HDFS-3580. incompatible types; no instance(s) of type variable(s) V exist + so that V conforms to boolean compiling HttpFSServer.java with OpenJDK + (adi2 via tucu) + + HDFS-3603. Decouple TestHDFSTrash from TestTrash. (Jason Lowe via eli) + + HDFS-711. hdfsUtime does not handle atime = 0 or mtime = 0 correctly. + (Colin Patrick McCabe via eli) + + HDFS-3548. NamenodeFsck.copyBlock fails to create a Block Reader. + (Colin Patrick McCabe via eli) + + HDFS-3615. Two BlockTokenSecretManager findbugs warnings. (atm) + + HDFS-470. libhdfs should handle 0-length reads from FSInputStream + correctly. (Colin Patrick McCabe via eli) + + HDFS-3492. fix some misuses of InputStream#skip. + (Colin Patrick McCabe via eli) + + HDFS-3609. libhdfs: don't force the URI to look like hdfs://hostname:port. + (Colin Patrick McCabe via eli) + + HDFS-2966 TestNameNodeMetrics tests can fail under load. (stevel) + + HDFS-3605. Block mistakenly marked corrupt during edit log catchup + phase of failover. (todd and Brahma Reddy Battula via todd) + + HDFS-3690. BlockPlacementPolicyDefault incorrectly casts LOG. (eli) + + HDFS-3597. SNN fails to start after DFS upgrade. (Andy Isaacson via todd) + + HDFS-3608. fuse_dfs: detect changes in UID ticket cache. (Colin Patrick + McCabe via atm) + + HDFS-3709. TestStartup tests still binding to the ephemeral port. (eli) + + HDFS-3720. hdfs.h must get packaged. (Colin Patrick McCabe via atm) + + HDFS-3626. Creating file with invalid path can corrupt edit log (todd) + + HDFS-3679. fuse_dfs notrash option sets usetrash. (Conrad Meyer via suresh) + + HDFS-3732. fuse_dfs: incorrect configuration value checked for connection + expiry timer period. (Colin Patrick McCabe via atm) + + HDFS-3738. TestDFSClientRetries#testFailuresArePerOperation sets incorrect + timeout config. (atm) + + HDFS-3756. DelegationTokenFetcher creates 2 HTTP connections, the second + one not properly configured. (tucu) + + HDFS-3579. libhdfs: fix exception handling. (Colin Patrick McCabe via atm) + + HDFS-3754. BlockSender doesn't shutdown ReadaheadPool threads. (eli) + + HDFS-3760. primitiveCreate is a write, not a read. (Andy Isaacson via atm) + + HDFS-3710. libhdfs misuses O_RDONLY/WRONLY/RDWR. (Andy Isaacson via atm) + + HDFS-3721. hsync support broke wire compatibility. (todd and atm) + + HDFS-3758. TestFuseDFS test failing. (Colin Patrick McCabe via eli) + + HDFS-2330. In NNStorage.java, IOExceptions of stream closures can mask + root exceptions. (umamahesh via todd) + + HDFS-3790. test_fuse_dfs.c doesn't compile on centos 5. (Colin Patrick + McCabe via atm) + + HDFS-3658. Fix bugs in TestDFSClientRetries and add more tests. (szetszwo) + + HDFS-3794. WebHDFS OPEN returns the incorrect Content-Length in the HTTP + header when offset is specified and length is omitted. + (Ravi Prakash via szetszwo) + + HDFS-3048. Small race in BlockManager#close. (Andy Isaacson via eli) + + HDFS-3194. DataNode block scanner is running too frequently. + (Andy Isaacson via eli) + + HDFS-3808. fuse_dfs: postpone libhdfs intialization until after fork. + (Colin Patrick McCabe via atm) + + HDFS-3788. ByteRangeInputStream should not expect HTTP Content-Length header + when chunked transfer-encoding is used. (szetszwo) + + HDFS-3816. Invalidate work percentage default value should be 0.32f + instead of 32. (Jing Zhao via suresh) + + HDFS-3707. TestFSInputChecker: improper use of skip. + (Colin Patrick McCabe via eli) + + HDFS-3830. test_libhdfs_threaded: use forceNewInstance. + (Colin Patrick McCabe via eli) + + HDFS-3835. Long-lived 2NN cannot perform a checkpoint if security is + enabled and the NN restarts with outstanding delegation tokens. (atm) + + HDFS-3715. Fix TestFileCreation#testFileCreationNamenodeRestart. + (Andrew Whang via eli) + + HDFS-3683. Edit log replay progress indicator shows >100% complete. (Plamen + Jeliazkov via atm) + + HDFS-3731. Release upgrade must handle blocks being written from 1.0. + (Colin Patrick McCabe via eli) + + HDFS-3856. TestHDFSServerPorts failure is causing surefire fork failure. + (eli) + + HDFS-3860. HeartbeatManager#Monitor may wrongly hold the writelock of + namesystem. (Jing Zhao via atm) + + HDFS-3849. When re-loading the FSImage, we should clear the existing + genStamp and leases. (Colin Patrick McCabe via atm) + + HDFS-3864. NN does not update internal file mtime for OP_CLOSE when reading + from the edit log. (atm) + + HDFS-3837. Fix DataNode.recoverBlock findbugs warning. (eli) + + HDFS-3733. Audit logs should include WebHDFS access. (Andy Isaacson via + eli) + + HDFS-2686. Remove DistributedUpgrade related code. (suresh) + + HDFS-3833. TestDFSShell fails on windows due to concurrent file + read/write. (Brandon Li via suresh) + + HDFS-3466. Get HTTP kerberos principal from the web authentication keytab. + (omalley) + + HDFS-3879. Fix findbugs warning in TransferFsImage on branch-2. (eli) + + HDFS-3469. start-dfs.sh will start zkfc, but stop-dfs.sh will not stop zkfc similarly. + (Vinay via umamahesh) + + HDFS-1490. TransferFSImage should timeout (Dmytro Molkov and Vinay via todd) + + HDFS-3828. Block Scanner rescans blocks too frequently. + (Andy Isaacson via eli) + + HDFS-3895. hadoop-client must include commons-cli (tucu) + + HDFS-2757. Cannot read a local block that's being written to when + using the local read short circuit. (Jean-Daniel Cryans via eli) + + HDFS-3664. BlockManager race when stopping active services. + (Colin Patrick McCabe via eli) + + HDFS-3928. MiniDFSCluster should reset the first ExitException on shutdown. (eli) + + HDFS-3938. remove current limitations from HttpFS docs. (tucu) + + HDFS-3944. Httpfs resolveAuthority() is not resolving host correctly. (tucu) + + HDFS-3972. Trash emptier fails in secure HA cluster. (todd via eli) + + HDFS-4443. Remove a trailing '`' character from the HTML code generated by + NamenodeJspHelper.generateNodeData(..). (Christian Rohling via szetszwo) + + BREAKDOWN OF HDFS-3042 SUBTASKS + + HDFS-2185. HDFS portion of ZK-based FailoverController (todd) + + HDFS-3200. Scope all ZKFC configurations by nameservice (todd) + + HDFS-3223. add zkfc to hadoop-daemon.sh script (todd) + + HDFS-3261. TestHASafeMode fails on HDFS-3042 branch (todd) + + HDFS-3159. Document NN auto-failover setup and configuration (todd) + + HDFS-3412. Fix findbugs warnings in auto-HA branch (todd) + + HDFS-3432. TestDFSZKFailoverController tries to fail over too early (todd) + + HDFS-3902. TestDatanodeBlockScanner#testBlockCorruptionPolicy is broken. + (Andy Isaacson via eli) + +Release 2.0.0-alpha - 05-23-2012 + + INCOMPATIBLE CHANGES + + HDFS-2676. Remove Avro RPC. (suresh) + + HDFS-2303. Unbundle jsvc. (Roman Shaposhnik and Mingjie Lai via eli) + + HDFS-3137. Bump LAST_UPGRADABLE_LAYOUT_VERSION to -16. (eli) + + HDFS-3138. Move DatanodeInfo#ipcPort to DatanodeID. (eli) + + HDFS-3164. Move DatanodeInfo#hostName to DatanodeID. (eli) + + NEW FEATURES + + HDFS-2978. The NameNode should expose name dir statuses via JMX. (atm) + + HDFS-395. DFS Scalability: Incremental block reports. (Tomasz Nykiel + via hairong) + + HDFS-2517. Add protobuf service for JounralProtocol. (suresh) + + HDFS-2518. Add protobuf service for NamenodeProtocol. (suresh) + + HDFS-2520. Add protobuf service for InterDatanodeProtocol. (suresh) + + HDFS-2519. Add protobuf service for DatanodeProtocol. (suresh) + + HDFS-2581. Implement protobuf service for JournalProtocol. (suresh) + + HDFS-2618. Implement protobuf service for NamenodeProtocol. (suresh) + + HDFS-2629. Implement protobuf service for InterDatanodeProtocol. (suresh) + + HDFS-2636. Implement protobuf service for ClientDatanodeProtocol. (suresh) + + HDFS-2642. Protobuf translators for DatanodeProtocol. (jitendra) + + HDFS-2647. Used protobuf based RPC for InterDatanodeProtocol, + ClientDatanodeProtocol, JournalProtocol, NamenodeProtocol. (suresh) + + HDFS-2661. Enable protobuf RPC for DatanodeProtocol. (jitendra) + + HDFS-2697. Move RefreshAuthPolicy, RefreshUserMappings, GetUserMappings + protocol to protocol buffers. (jitendra) + + HDFS-2880. Protobuf changes in DatanodeProtocol to add multiple storages. + (suresh) + + HDFS-2899. Service protocol changes in DatanodeProtocol to add multiple + storages. (suresh) + + HDFS-2430. The number of failed or low-resource volumes the NN can tolerate + should be configurable. (atm) + + HDFS-1623. High Availability Framework for HDFS NN. Contributed by Todd + Lipcon, Aaron T. Myers, Eli Collins, Uma Maheswara Rao G, Bikas Saha, + Suresh Srinivas, Jitendra Nath Pandey, Hari Mankude, Brandon Li, Sanjay + Radia, Mingjie Lai, and Gregory Chanan + + HDFS-2941. Add an administrative command to download a copy of the fsimage + from the NN. (atm) + + HDFS-2413. Add an API DistributedFileSystem.isInSafeMode() and change + DistributedFileSystem to @InterfaceAudience.LimitedPrivate. + (harsh via szetszwo) + + HDFS-3167. CLI-based driver for MiniDFSCluster. (Henry Robinson via atm) + + HDFS-3148. The client should be able to use multiple local interfaces + for data transfer. (eli) + + HDFS-3000. Add a public API for setting quotas. (atm) + + HDFS-3102. Add CLI tool to initialize the shared-edits dir. (atm) + + HDFS-3004. Implement Recovery Mode. (Colin Patrick McCabe via eli) + + HDFS-3282. Add HdfsDataInputStream as a public API. (umamahesh) + + HDFS-3298. Add HdfsDataOutputStream as a public API. (szetszwo) + + HDFS-234. Integration with BookKeeper logging system. (Ivan Kelly + via umamahesh) + + IMPROVEMENTS + + HDFS-2018. Move all journal stream management code into one place. + (Ivan Kelly via jitendra) + + HDFS-2223. Untangle depencencies between NN components (todd) + + HDFS-2351. Change Namenode and Datanode to register each of their protocols + seperately (sanjay) + + HDFS-2337. DFSClient shouldn't keep multiple RPC proxy references (atm) + + HDFS-2181. Separate HDFS Client wire protocol data types (sanjay) + + HDFS-2459. Separate datatypes for Journal Protocol. (suresh) + + HDFS-2480. Separate datatypes for NamenodeProtocol. (suresh) + + HDFS-2489. Move Finalize and Register to separate file out of + DatanodeCommand.java. (suresh) + + HDFS-2488. Separate datatypes for InterDatanodeProtocol. (suresh) + + HDFS-2496. Separate datatypes for DatanodeProtocol. (suresh) + + HDFS-2479. HDFS Client Data Types in Protocol Buffers (sanjay) + + HADOOP-7862. Hdfs changes to work with HADOOP-7862: Move the support for + multiple protocols to lower layer so that Writable, PB and Avro can all + use it. (sanjay) + + HDFS-2597. ClientNameNodeProtocol in Protocol Buffers. (sanjay) + + HDFS-2651. ClientNameNodeProtocol Translators for Protocol Buffers. (sanjay) + + HDFS-2650. Replace @inheritDoc with @Override. (Hari Mankude via suresh). + + HDFS-2669. Enable protobuf rpc for ClientNamenodeProtocol. (sanjay) + + HDFS-2801. Provide a method in client side translators to check for a + methods supported in underlying protocol. (jitendra) + + HDFS-2895. Remove Writable wire protocol types and translators to + complete transition to protocol buffers. (suresh) + + HDFS-2992. Edit log failure trace should include transaction ID of + error. (Colin Patrick McCabe via eli) + + HDFS-3030. Remove getProtocolVersion and getProtocolSignature from + translators. (jitendra) + + HDFS-2158. Add JournalSet to manage the set of journals. (jitendra) + + HDFS-2334. Add Closeable to JournalManager. (Ivan Kelly via jitendra) + + HDFS-1580. Add interface for generic Write Ahead Logging mechanisms. + (Ivan Kelly via jitendra) + + HDFS-3060. Bump TestDistributedUpgrade#testDistributedUpgrade timeout (eli) + + HDFS-2410. Further cleanup of hardcoded configuration keys and values. + (suresh) + + HDFS-2878. Fix TestBlockRecovery and move it back into main test directory. + (todd) + + HDFS-3003. Remove getHostPortString() from NameNode, replace it with + NetUtils.getHostPortString(). (Brandon Li via atm) + + HDFS-3014. FSEditLogOp and its subclasses should have toString() method. + (Sho Shimauchi via atm) + + HDFS-3021. Use generic type to declare FSDatasetInterface. (szetszwo) + + HDFS-3056. Add a new interface RollingLogs for DataBlockScanner logging. + (szetszwo) + + HDFS-2731. Add command to bootstrap the Standby Node's name directories + from the Active NameNode. (todd) + + HDFS-3082. Clean up FSDatasetInterface and change DataNode.data to package + private. (szetszwo) + + HDFS-3057. httpfs and hdfs launcher scripts should honor CATALINA_HOME + and HADOOP_LIBEXEC_DIR (rvs via tucu) + + HDFS-3088. Move FSDatasetInterface inner classes to a package. (szetszwo) + + HDFS-3111. Missing license headers in trunk. (umamahesh) + + HDFS-3091. Update the usage limitations of ReplaceDatanodeOnFailure policy in + the config description for the smaller clusters. (szetszwo via umamahesh) + + HDFS-3105. Add DatanodeStorage information to block recovery. (szetszwo) + + HDFS-3086. Change Datanode not to send storage list in registration. + (szetszwo) + + HDFS-309. FSEditLog should log progress during replay. (Sho Shimauchi + via todd) + + HDFS-3044. fsck move should be non-destructive by default. + (Colin Patrick McCabe via eli) + + HDFS-3071. haadmin failover command does not provide enough detail when + target NN is not ready to be active. (todd) + + HDFS-3089. Move FSDatasetInterface and the related classes to a package. + (szetszwo) + + HDFS-3129. NetworkTopology: add test that getLeaf should check for + invalid topologies. (Colin Patrick McCabe via eli) + + HDFS-3155. Clean up FSDataset implemenation related code. (szetszwo) + + HDFS-3158. LiveNodes member of NameNodeMXBean should list non-DFS used + space and capacity per DN. (atm) + + HDFS-3172. dfs.upgrade.permission is dead code. (eli) + + HDFS-3171. The DatanodeID "name" field is overloaded. (eli) + + HDFS-3144. Refactor DatanodeID#getName by use. (eli) + + HDFS-3130. Move fsdataset implementation to a package. (szetszwo) + + HDFS-3120. Enable hsync and hflush by default. (eli) + + HDFS-3187. Upgrade guava to 11.0.2 (todd) + + HDFS-3168. Remove unnecessary "throw IOException" and change fields to + final in FSNamesystem and BlockManager. (szetszwo) + + HDFS-2564. Cleanup unnecessary exceptions thrown and unnecessary casts. + (Hari Mankude via eli) + + HDFS-3084. FenceMethod.tryFence() and ShellCommandFencer should pass + namenodeId as well as host:port (todd) + + HDFS-3050. rework OEV to share more code with the NameNode. + (Colin Patrick McCabe via eli) + + HDFS-3204. Minor modification to JournalProtocol.proto to make + it generic. (suresh) + + HDFS-3226. Allow GetConf tool to print arbitrary keys (todd) + + HDFS-3240. Drop log level of "heartbeat: ..." in BPServiceActor to DEBUG + (todd) + + HDFS-3238. ServerCommand and friends don't need to be writables. (eli) + + HDFS-3094. add -nonInteractive and -force option to namenode -format + command (Arpit Gupta via todd) + + HDFS-3244. Remove dead writable code from hdfs/protocol. (eli) + + HDFS-3247. Improve bootstrapStandby behavior when original NN is not active + (todd) + + HDFS-3249. Use ToolRunner.confirmPrompt in NameNode (todd) + + HDFS-3179. Improve the exception message thrown by DataStreamer when + it failed to add a datanode. (szetszwo) + + HDFS-2983. Relax the build version check to permit rolling upgrades within a release. (atm) + + HDFS-3259. NameNode#initializeSharedEdits should populate shared edits dir + with edit log segments. (atm) + + HDFS-2708. Stats for the # of blocks per DN. (atm) + + HDFS-3279. Move the FSEditLog constructor with @VisibleForTesting to + TestEditLog. (Arpit Gupta via szetszwo) + + HDFS-3294. Fix code indentation in NamenodeWebHdfsMethods and + DatanodeWebHdfsMethods. (szetszwo) + + HDFS-3263. HttpFS should read HDFS config from Hadoop site.xml files (tucu) + + HDFS-3206. Miscellaneous xml cleanups for OEV. + (Colin Patrick McCabe via eli) + + HDFS-3169. TestFsck should test multiple -move operations in a row. + (Colin Patrick McCabe via eli) + + HDFS-3258. Test for HADOOP-8144 (pseudoSortByDistance in + NetworkTopology for first rack local node). (Junping Du via eli) + + HDFS-3322. Use HdfsDataInputStream and HdfsDataOutputStream in Hdfs. + (szetszwo) + + HDFS-3339. Change INode to package private. (John George via szetszwo) + + HDFS-3303. Remove Writable implementation from RemoteEditLogManifest. + (Brandon Li via szetszwo) + + HDFS-2617. Replaced Kerberized SSL for image transfer and fsck + with SPNEGO-based solution. (jghoman, omalley, tucu, and atm via eli) + + HDFS-3365. Enable users to disable socket caching in DFS client + configuration (todd) + + HDFS-3375. Put client name in DataXceiver thread name for readBlock + and keepalive (todd) + + HDFS-3363. Define BlockCollection and MutableBlockCollection interfaces + so that INodeFile and INodeFileUnderConstruction do not have to be used in + block management. (John George via szetszwo) + + HDFS-3211. Add fence(..) and replace NamenodeRegistration with JournalInfo + and epoch in JournalProtocol. (suresh via szetszwo) + + HADOOP-8285 HDFS changes for Use ProtoBuf for RpcPayLoadHeader (sanjay radia) + + HDFS-3418. Rename BlockWithLocationsProto datanodeIDs field to storageIDs. + (eli) + + OPTIMIZATIONS + + HDFS-2477. Optimize computing the diff between a block report and the + namenode state. (Tomasz Nykiel via hairong) + + HDFS-2495. Increase granularity of write operations in ReplicationMonitor + thus reducing contention for write lock. (Tomasz Nykiel via hairong) + + HDFS-2476. More CPU efficient data structure for under-replicated, + over-replicated, and invalidated blocks. (Tomasz Nykiel via todd) + + HDFS-3036. Remove unused method DFSUtil#isDefaultNamenodeAddress. (atm) + + HDFS-3378. Remove DFS_NAMENODE_SECONDARY_HTTPS_PORT_KEY and DEFAULT. (eli) + + BUG FIXES + + HDFS-2481. Unknown protocol: org.apache.hadoop.hdfs.protocol.ClientProtocol. + (sanjay) + + HDFS-2497. Fix TestBackupNode failure. (suresh) + + HDFS-2499. RPC client is created incorrectly introduced in HDFS-2459. + (suresh) + + HDFS-2526. (Client)NamenodeProtocolTranslatorR23 do not need to keep a + reference to rpcProxyWithoutRetry (atm) + + HDFS-2532. TestDfsOverAvroRpc timing out in trunk (Uma Maheswara Rao G + via todd) + + HDFS-2666. Fix TestBackupNode failure. (suresh) + + HDFS-2663. Optional protobuf parameters are not handled correctly. (suresh) + + HDFS-2694. Removal of Avro broke non-PB NN services. (atm) + + HDFS-2687. Tests failing with ClassCastException post protobuf RPC + changes. (suresh) + + HDFS-2700. Fix failing TestDataNodeMultipleRegistrations in trunk + (Uma Maheswara Rao G via todd) + + HDFS-2739. SecondaryNameNode doesn't start up. (jitendra) + + HDFS-2768. BackupNode stop can not close proxy connections because + it is not a proxy instance. (Uma Maheswara Rao G via eli) + + HDFS-2968. Protocol translator for BlockRecoveryCommand broken when + multiple blocks need recovery. (todd) + + HDFS-3020. Fix editlog to automatically sync when buffer is full. (todd) + + HDFS-3038. Add FSEditLog.metrics to findbugs exclude list. (todd via atm) + + HDFS-2188. Make FSEditLog create its journals from a list of URIs rather + than NNStorage. (Ivan Kelly via jitendra) + + HDFS-1765. Block Replication should respect under-replication + block priority. (Uma Maheswara Rao G via eli) + + HDFS-2285. BackupNode should reject requests to modify namespace. + (shv and Uma Maheswara Rao) + + HDFS-2764. TestBackupNode is racy. (atm) + + HDFS-3093. Fix bug where namenode -format interpreted the -force flag in + reverse. (todd) + + HDFS-3005. FSVolume.decDfsUsed(..) should be synchronized. (szetszwo) + + HDFS-3099. SecondaryNameNode does not properly initialize metrics system. + (atm) + + HDFS-3062. Fix bug which prevented MR job submission from creating + delegation tokens on an HA cluster. (Mingjie Lai via todd) + + HDFS-3083. Cannot run an MR job with HA and security enabled when + second-listed NN active. (atm) + + HDFS-3100. In BlockSender, throw an exception when it needs to verify + checksum but the meta data does not exist. (Brandon Li via szetszwo) + + HDFS-3132. Fix findbugs warning on HDFS trunk. (todd) + + HDFS-3156. TestDFSHAAdmin is failing post HADOOP-8202. (atm) + + HDFS-3143. TestGetBlocks.testGetBlocks is failing. (Arpit Gupta via atm) + + HDFS-3142. TestHDFSCLI.testAll is failing. (Brandon Li via atm) + + HDFS-3070. HDFS balancer doesn't ensure that hdfs-site.xml is loaded. (atm) + + HDFS-2995. start-dfs.sh should only start the 2NN for namenodes + with dfs.namenode.secondary.http-address configured. (eli) + + HDFS-3174. Fix assert in TestPendingDataNodeMessages. (eli) + + HDFS-3199. TestValidateConfigurationSettings is failing. (todd via eli) + + HDFS-3202. NamespaceInfo PB translation drops build version. (atm) + + HDFS-3109. Remove hsqldf exclusions from pom.xml. (Ravi Prakash + via suresh) + + HDFS-3210. JsonUtil#toJsonMap for for a DatanodeInfo should use + "ipAddr" instead of "name". (eli) + + HDFS-3208. Bogus entries in hosts files are incorrectly displayed + in the report. (eli) + + HDFS-3136. Remove SLF4J dependency as HDFS does not need it to fix + unnecessary warnings. (Jason Lowe via suresh) + + HDFS-3214. InterDatanodeProtocolServerSideTranslatorPB doesn't handle + null response from initReplicaRecovery (todd) + + HDFS-3119. Overreplicated block is not deleted even after the replication + factor is reduced after sync follwed by closing that file. (Ashish Singhi + via umamahesh) + + HDFS-3234. Accidentally left log message in GetConf after HDFS-3226 (todd) + + HDFS-3236. NameNode does not initialize generic conf keys when started + with -initializeSharedEditsDir (atm) + + HDFS-3248. bootstrapStandby repeated twice in hdfs namenode usage message + (Colin Patrick McCabe via todd) + + HDFS-2696. Fix the fuse-fds build. (Bruno Mahé via eli) + + HDFS-3254. Branch-2 build broken due to wrong version number in + fuse-dfs' pom.xml. (Anupam Seth via eli) + + HDFS-3260. TestDatanodeRegistration should set minimum DN version in + addition to minimum NN version. (atm) + + HDFS-3255. HA DFS returns wrong token service (Daryn Sharp via todd) + + HDFS-3256. HDFS considers blocks under-replicated if topology script is + configured with only 1 rack. (atm) + + HDFS-2799. Trim fs.checkpoint.dir values. (Amith D K via eli) + + HDFS-2765. TestNameEditsConfigs is incorrectly swallowing IOE. (atm) + + HDFS-3280. DFSOutputStream.sync should not be synchronized (todd) + + HDFS-3268. FileContext API mishandles token service and incompatible with + HA (Daryn Sharp via todd) + + HDFS-3284. bootstrapStandby fails in secure cluster (todd) + + HDFS-3165. HDFS Balancer scripts are refering to wrong path of + hadoop-daemon.sh (Amith D K via eli) + + HDFS-891. DataNode no longer needs to check for dfs.network.script. + (harsh via eli) + + HDFS-3305. GetImageServlet should consider SBN a valid requestor in a + secure HA setup. (atm) + + HDFS-3314. HttpFS operation for getHomeDirectory is incorrect. (tucu) + + HDFS-3319. Change DFSOutputStream to not to start a thread in constructors. + (szetszwo) + + HDFS-3222. DFSInputStream#openInfo should not silently get the length as 0 + when locations length is zero for last partial block. (umamahesh) + + HDFS-3181. Fix a test case in TestLeaseRecovery2. (szetszwo) + + HDFS-3309. HttpFS (Hoop) chmod not supporting octal and sticky bit + permissions. (tucu) + + HDFS-3326. Append enabled log message uses the wrong variable. + (Matthew Jacobs via eli) + + HDFS-3275. Skip format for non-file based directories. + (Amith D K via umamahesh) + + HDFS-3286. When the threshold value for balancer is zero, unexpected output is displayed. + (Ashish Singhi via umamahesh) + + HDFS-3336. hdfs launcher script will be better off not special casing + namenode command with regards to hadoop.security.logger (rvs via tucu) + + HDFS-3330. If GetImageServlet throws an Error or RTE, response should not + have HTTP "OK" status. (todd) + + HDFS-3351. NameNode#initializeGenericKeys should always set fs.defaultFS + regardless of whether HA or Federation is enabled. (atm) + + HDFS-3332. NullPointerException in DN when directoryscanner is trying to + report bad blocks. (Amith D K via umamahesh) + + HDFS-3359. DFSClient.close should close cached sockets. (todd) + + HDFS-3350. In INode, add final to compareTo(..), equals(..) and hashCode(), + and remove synchronized from updatePermissionStatus(..). (szetszwo) + + HDFS-3357. DataXceiver reads from client socket with incorrect/no timeout + (todd) + + HDFS-3376. DFSClient fails to make connection to DN if there are many + unusable cached sockets (todd) + + HDFS-3328. NPE in DataNode.getIpcPort. (eli) + + HDFS-3396. FUSE build fails on Ubuntu 12.04. (Colin Patrick McCabe via eli) + + HDFS-3395. NN doesn't start with HA+security enabled and HTTP address set to 0.0.0.0. (atm) + + HDFS-3026. HA: Handle failure during HA state transition. (atm) + + HDFS-860. fuse-dfs truncate behavior causes issues with scp. + (Brian Bockelman via eli) + + BREAKDOWN OF HDFS-1623 SUBTASKS + + HDFS-2179. Add fencing framework and mechanisms for NameNode HA. (todd) + + HDFS-1974. Introduce active and standy states to the namenode. (suresh) + + HDFS-2407. getServerDefaults and getStats don't check operation category (atm) + + HDFS-1973. HA: HDFS clients must handle namenode failover and switch over to + the new active namenode. (atm) + + HDFS-2301. Start/stop appropriate namenode services when transition to active + and standby states. (suresh) + + HDFS-2231. Configuration changes for HA namenode. (suresh) + + HDFS-2418. Change ConfiguredFailoverProxyProvider to take advantage of + HDFS-2231. (atm) + + HDFS-2393. Mark appropriate methods of ClientProtocol with the idempotent + annotation. (atm) + + HDFS-2523. Small NN fixes to include HAServiceProtocol and prevent NPE on + shutdown. (todd) + + HDFS-2577. NN fails to start since it tries to start secret manager in + safemode. (todd) + + HDFS-2582. Scope dfs.ha.namenodes config by nameservice (todd) + + HDFS-2591. MiniDFSCluster support to mix and match federation with HA (todd) + + HDFS-1975. Support for sharing the namenode state from active to standby. + (jitendra, atm, todd) + + HDFS-1971. Send block report from datanode to both active and standby + namenodes. (sanjay, todd via suresh) + + HDFS-2616. Change DatanodeProtocol#sendHeartbeat() to return HeartbeatResponse. + (suresh) + + HDFS-2622. Fix TestDFSUpgrade in HA branch. (todd) + + HDFS-2612. Handle refreshNameNodes in federated HA clusters (todd) + + HDFS-2623. Add test case for hot standby capability (todd) + + HDFS-2626. BPOfferService.verifyAndSetNamespaceInfo needs to be synchronized + (todd) + + HDFS-2624. ConfiguredFailoverProxyProvider doesn't correctly stop + ProtocolTranslators (todd) + + HDFS-2625. TestDfsOverAvroRpc failing after introduction of HeartbeatResponse + type (todd) + + HDFS-2627. Determine DN's view of which NN is active based on heartbeat + responses (todd) + + HDFS-2634. Standby needs to ingest latest edit logs before transitioning to + active (todd) + + HDFS-2671. NN should throw StandbyException in response to RPCs in STANDBY + state (todd) + + HDFS-2680. DFSClient should construct failover proxy with exponential backoff + (todd) + + HDFS-2683. Authority-based lookup of proxy provider fails if path becomes + canonicalized (todd) + + HDFS-2689. HA: BookKeeperEditLogInputStream doesn't implement isInProgress() + (atm) + + HDFS-2602. NN should log newly-allocated blocks without losing BlockInfo (atm) + + HDFS-2667. Fix transition from active to standby (todd) + + HDFS-2684. Fix up some failing unit tests on HA branch (todd) + + HDFS-2679. Add interface to query current state to HAServiceProtocol (eli via + todd) + + HDFS-2677. Web UI should indicate the NN state. (eli via todd) + + HDFS-2678. When a FailoverProxyProvider is used, DFSClient should not retry + connection ten times before failing over (atm via todd) + + HDFS-2682. When a FailoverProxyProvider is used, Client should not retry for 45 + times if it is timing out to connect to server. (Uma Maheswara Rao G via todd) + + HDFS-2693. Fix synchronization issues around state transition (todd) + + HDFS-1972. Fencing mechanism for block invalidations and replications (todd) + + HDFS-2714. Fix test cases which use standalone FSNamesystems (todd) + + HDFS-2692. Fix bugs related to failover from/into safe mode. (todd) + + HDFS-2716. Configuration needs to allow different dfs.http.addresses for each + HA NN (todd) + + HDFS-2720. Fix MiniDFSCluster HA support to work properly on Windows. (Uma + Maheswara Rao G via todd) + + HDFS-2291. Allow the StandbyNode to make checkpoints in an HA setup. (todd) + + HDFS-2709. Appropriately handle error conditions in EditLogTailer (atm via + todd) + + HDFS-2730. Refactor shared HA-related test code into HATestUtil class (todd) + + HDFS-2762. Fix TestCheckpoint timing out on HA branch. (Uma Maheswara Rao G via + todd) + + HDFS-2724. NN web UI can throw NPE after startup, before standby state is + entered. (todd) + + HDFS-2753. Fix standby getting stuck in safemode when blocks are written while + SBN is down. (Hari Mankude and todd via todd) + + HDFS-2773. Reading edit logs from an earlier version should not leave blocks in + under-construction state. (todd) + + HDFS-2775. Fix TestStandbyCheckpoints.testBothNodesInStandbyState failing + intermittently. (todd) + + HDFS-2766. Test for case where standby partially reads log and then performs + checkpoint. (atm) + + HDFS-2738. FSEditLog.selectinputStreams is reading through in-progress streams + even when non-in-progress are requested. (atm) + + HDFS-2789. TestHAAdmin.testFailover is failing (eli) + + HDFS-2747. Entering safe mode after starting SBN can NPE. (Uma Maheswara Rao G + via todd) + + HDFS-2772. On transition to active, standby should not swallow ELIE. (atm) + + HDFS-2767. ConfiguredFailoverProxyProvider should support NameNodeProtocol. + (Uma Maheswara Rao G via todd) + + HDFS-2795. Standby NN takes a long time to recover from a dead DN starting up. + (todd) + + HDFS-2592. Balancer support for HA namenodes. (Uma Maheswara Rao G via todd) + + HDFS-2367. Enable the configuration of multiple HA cluster addresses. (atm) + + HDFS-2812. When becoming active, the NN should treat all leases as freshly + renewed. (todd) + + HDFS-2737. Automatically trigger log rolls periodically on the active NN. (todd + and atm) + + HDFS-2820. Add a simple sanity check for HA config (todd) + + HDFS-2688. Add tests for quota tracking in an HA cluster. (todd) + + HDFS-2804. Should not mark blocks under-replicated when exiting safemode (todd) + + HDFS-2807. Service level authorizartion for HAServiceProtocol. (jitendra) + + HDFS-2809. Add test to verify that delegation tokens are honored after + failover. (jitendra and atm) + + HDFS-2838. NPE in FSNamesystem when in safe mode. (Gregory Chanan via eli) + + HDFS-2805. Add a test for a federated cluster with HA NNs. (Brandon Li via + jitendra) + + HDFS-2841. HAAdmin does not work if security is enabled. (atm) + + HDFS-2691. Fixes for pipeline recovery in an HA cluster: report RBW replicas + immediately upon pipeline creation. (todd) + + HDFS-2824. Fix failover when prior NN died just after creating an edit log + segment. (atm via todd) + + HDFS-2853. HA: NN fails to start if the shared edits dir is marked required + (atm via eli) + + HDFS-2845. SBN should not allow browsing of the file system via web UI. (Bikas + Saha via atm) + + HDFS-2742. HA: observed dataloss in replication stress test. (todd via eli) + + HDFS-2870. Fix log level for block debug info in processMisReplicatedBlocks + (todd) + + HDFS-2859. LOCAL_ADDRESS_MATCHER.match has NPE when called from + DFSUtil.getSuffixIDs when the host is incorrect (Bikas Saha via todd) + + HDFS-2861. checkpointing should verify that the dfs.http.address has been + configured to a non-loopback for peer NN (todd) + + HDFS-2860. TestDFSRollback#testRollback is failing. (atm) + + HDFS-2769. HA: When HA is enabled with a shared edits dir, that dir should be + marked required. (atm via eli) + + HDFS-2863. Failures observed if dfs.edits.dir and shared.edits.dir have same + directories. (Bikas Saha via atm) + + HDFS-2874. Edit log should log to shared dirs before local dirs. (todd) + + HDFS-2890. DFSUtil#getSuffixIDs should skip unset configurations. (atm) + + HDFS-2792. Make fsck work. (atm) + + HDFS-2808. HA: haadmin should use namenode ids. (eli) + + HDFS-2819. Document new HA-related configs in hdfs-default.xml. (eli) + + HDFS-2752. HA: exit if multiple shared dirs are configured. (eli) + + HDFS-2894. HA: automatically determine the nameservice Id if only one + nameservice is configured. (eli) + + HDFS-2733. Document HA configuration and CLI. (atm) + + HDFS-2794. Active NN may purge edit log files before standby NN has a chance to + read them (todd) + + HDFS-2901. Improvements for SBN web UI - not show under-replicated/missing + blocks. (Brandon Li via jitendra) + + HDFS-2905. HA: Standby NN NPE when shared edits dir is deleted. (Bikas Saha via + jitendra) + + HDFS-2579. Starting delegation token manager during safemode fails. (todd) + + HDFS-2510. Add HA-related metrics. (atm) + + HDFS-2924. Standby checkpointing fails to authenticate in secure cluster. + (todd) + + HDFS-2915. HA: TestFailureOfSharedDir.testFailureOfSharedDir() has race + condition. (Bikas Saha via jitendra) + + HDFS-2912. Namenode not shutting down when shared edits dir is inaccessible. + (Bikas Saha via atm) + + HDFS-2917. HA: haadmin should not work if run by regular user (eli) + + HDFS-2939. TestHAStateTransitions fails on Windows. (Uma Maheswara Rao G via + atm) + + HDFS-2947. On startup NN throws an NPE in the metrics system. (atm) + + HDFS-2942. TestActiveStandbyElectorRealZK fails if build dir does not exist. + (atm) + + HDFS-2948. NN throws NPE during shutdown if it fails to startup (todd) + + HDFS-2909. HA: Inaccessible shared edits dir not getting removed from FSImage + storage dirs upon error. (Bikas Saha via jitendra) + + HDFS-2934. Allow configs to be scoped to all NNs in the nameservice. (todd) + + HDFS-2935. Shared edits dir property should be suffixed with nameservice and + namenodeID (todd) + + HDFS-2928. ConfiguredFailoverProxyProvider should not create a NameNode proxy + with an underlying retry proxy. (Uma Maheswara Rao G via atm) + + HDFS-2955. IllegalStateException during standby startup in getCurSegmentTxId. + (Hari Mankude via atm) + + HDFS-2937. TestDFSHAAdmin needs tests with MiniDFSCluster. (Brandon Li via + suresh) + + HDFS-2586. Add protobuf service and implementation for HAServiceProtocol. + (suresh via atm) + + HDFS-2952. NN should not start with upgrade option or with a pending an + unfinalized upgrade. (atm) + + HDFS-2974. MiniDFSCluster does not delete standby NN name dirs during format. + (atm) + + HDFS-2929. Stress test and fixes for block synchronization (todd) + + HDFS-2972. Small optimization building incremental block report (todd) + + HDFS-2973. Re-enable NO_ACK optimization for block deletion. (todd) + + HDFS-2922. HA: close out operation categories (eli) + + HDFS-2993. HA: BackupNode#checkOperation should permit CHECKPOINT operations + (eli) + + HDFS-2904. Client support for getting delegation tokens. (todd) + + HDFS-3013. HA: NameNode format doesn't pick up + dfs.namenode.name.dir.NameServiceId configuration (Mingjie Lai via todd) + + HDFS-3019. Fix silent failure of TestEditLogJournalFailures (todd) + + HDFS-2958. Sweep for remaining proxy construction which doesn't go through + failover path. (atm) + + HDFS-2920. fix remaining TODO items. (atm and todd) + + HDFS-3027. Implement a simple NN health check. (atm) + + HDFS-3023. Optimize entries in edits log for persistBlocks call. (todd) + + HDFS-2979. Balancer should use logical uri for creating failover proxy with HA + enabled. (atm) + + HDFS-3035. Fix failure of TestFileAppendRestart due to OP_UPDATE_BLOCKS (todd) + + HDFS-3039. Address findbugs and javadoc warnings on branch. (todd via atm) + +Release 0.23.10 - UNRELEASED + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + HDFS-5010. Reduce the frequency of getCurrentUser() calls from namenode + (kihwal) + + OPTIMIZATIONS + + BUG FIXES + + HDFS-4998. TestUnderReplicatedBlocks fails intermittently (kihwal) + +Release 0.23.9 - UNRELEASED + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + OPTIMIZATIONS + + BUG FIXES + + HDFS-4867. metaSave NPEs when there are invalid blocks in repl queue. + (Plamen Jeliazkov and Ravi Prakash via shv) + + HDFS-4862. SafeModeInfo.isManual() returns true when resources are low even + if it wasn't entered into manually (Ravi Prakash via kihwal) + + HDFS-4832. Namenode doesn't change the number of missing blocks in + safemode when DNs rejoin or leave (Ravi Prakash via kihwal) + + HDFS-4878. On Remove Block, block is not removed from neededReplications + queue. (Tao Luo via shv) + + HDFS-4205. fsck fails with symlinks. (jlowe) + +Release 0.23.8 - 2013-06-05 + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + HDFS-4714. Log short messages in Namenode RPC server for exceptions + meant for clients. (kihwal) + + OPTIMIZATIONS + + BUG FIXES + + HDFS-4477. Secondary namenode may retain old tokens (daryn via kihwal) + + HDFS-4699. TestPipelinesFailover#testPipelineRecoveryStress fails + sporadically (Chris Nauroth via kihwal) + + HDFS-4805. Webhdfs client is fragile to token renewal errors + (daryn via kihwal) + + HDFS-3875. Issue handling checksum errors in write pipeline. (kihwal) + + HDFS-4807. createSocketForPipeline() should not include timeout extension + on connect. (Cristina L. Abad via kihwal) + +Release 0.23.7 - 2013-04-18 + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + OPTIMIZATIONS + + HDFS-4532. RPC call queue may fill due to current user lookup (daryn) + + BUG FIXES + + HDFS-4288. NN accepts incremental BR as IBR in safemode (daryn via kihwal) + + HDFS-4495. Allow client-side lease renewal to be retried beyond soft-limit + (kihwal) + + HDFS-4128. 2NN gets stuck in inconsistent state if edit log replay fails + in the middle (kihwal via daryn) + + HDFS-4542. Webhdfs doesn't support secure proxy users (Daryn Sharp via + kihwal) + + HDFS-4560. Webhdfs cannot use tokens obtained by another user (daryn) + + HDFS-4566. Webdhfs token cancelation should use authentication (daryn) + + HDFS-4567. Webhdfs does not need a token for token operations (daryn via + kihwal) + + HDFS-4577. Webhdfs operations should declare if authentication is required + (daryn via kihwal) + + HDFS-3344. Unreliable corrupt blocks counting in TestProcessCorruptBlocks + (kihwal) + + HDFS-3367. WebHDFS doesn't use the logged in user when opening + connections (daryn) + + HDFS-4581. checkDiskError should not be called on network errors (Rohit + Kochar via kihwal) + + HDFS-4649. Webhdfs cannot list large directories (daryn via kihwal) + + HDFS-4548. Webhdfs doesn't renegotiate SPNEGO token (daryn via kihwal) + +Release 0.23.6 - 2013-02-06 + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + OPTIMIZATIONS + + BUG FIXES + + HDFS-4247. saveNamespace should be tolerant of dangling lease (daryn) + + HDFS-4248. Renaming directories may incorrectly remove the paths in leases + under the tree. (daryn via szetszwo) + + HDFS-4385. Maven RAT plugin is not checking all source files (tgraves) + + HDFS-4426. Secondary namenode shuts down immediately after startup. + (Arpit Agarwal via suresh) + +Release 0.23.5 - 2012-11-28 + + INCOMPATIBLE CHANGES + + HDFS-4080. Add a separate logger for block state change logs to enable turning + off those logs. (Kihwal Lee via suresh) + + NEW FEATURES + + IMPROVEMENTS + + OPTIMIZATIONS + + HDFS-4075. Reduce recommissioning overhead (Kihwal Lee via daryn) + + HDFS-3990. NN's health report has severe performance problems (daryn) + + HDFS-4181. LeaseManager tries to double remove and prints extra messages + (Kihwal Lee via daryn) + + BUG FIXES + + HDFS-3829. TestHftpURLTimeouts fails intermittently with JDK7 (Trevor + Robinson via tgraves) + + HDFS-3824. TestHftpDelegationToken fails intermittently with JDK7 (Trevor + Robinson via tgraves) + + HDFS-3224. Bug in check for DN re-registration with different storage ID + (jlowe) + + HDFS-4090. getFileChecksum() result incompatible when called against + zero-byte files. (Kihwal Lee via daryn) + + HDFS-4172. namenode does not URI-encode parameters when building URI for + datanode request (Derek Dagit via bobby) + + HDFS-4182. SecondaryNameNode leaks NameCache entries (bobby) + + HDFS-4186. logSync() is called with the write lock held while releasing + lease (Kihwal Lee via daryn) + +Release 0.23.4 + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + OPTIMIZATIONS + + BUG FIXES + + HDFS-3831. Failure to renew tokens due to test-sources left in classpath + (jlowe via bobby) + +Release 0.23.3 + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + HDFS-2505. Add a test to verify getFileChecksum(..) with ViewFS. (Ravi + Prakash via szetszwo) + + OPTIMIZATIONS + + BUG FIXES + + HDFS-3166. Add timeout to Hftp connections. (Daryn Sharp via szetszwo) + + HDFS-3176. Use MD5MD5CRC32FileChecksum.readFields() in JsonUtil . (Kihwal + Lee via szetszwo) + + HDFS-2652. Add support for host-based delegation tokens. (Daryn Sharp via + szetszwo) + + HDFS-3308. Uses canonical URI to select delegation tokens in HftpFileSystem + and WebHdfsFileSystem. (Daryn Sharp via szetszwo) + + HDFS-3312. In HftpFileSystem, the namenode URI is non-secure but the + delegation tokens have to use secure URI. (Daryn Sharp via szetszwo) + + HDFS-3318. Use BoundedInputStream in ByteRangeInputStream, otherwise, it + hangs on transfers >2 GB. (Daryn Sharp via szetszwo) + + HDFS-3321. Fix safe mode turn off tip message. (Ravi Prakash via szetszwo) + + HDFS-3334. Fix ByteRangeInputStream stream leakage. (Daryn Sharp via + szetszwo) + + HDFS-3331. In namenode, check superuser privilege for setBalancerBandwidth + and acquire the write lock for finalizeUpgrade. (szetszwo) + + HDFS-3037. TestMulitipleNNDataBlockScanner#testBlockScannerAfterRestart is + racy. (atm) + + HDFS-3577. In DatanodeWebHdfsMethods, use MessageBodyWriter instead of + StreamingOutput, otherwise, it will fail to transfer large files. + (szetszwo) + + HDFS-3646. LeaseRenewer can hold reference to inactive DFSClient + instances forever. (Kihwal Lee via daryn) + + HDFS-3696. Set chunked streaming mode in WebHdfsFileSystem write operations + to get around a Java library bug causing OutOfMemoryError. (szetszwo) + + HDFS-3553. Hftp proxy tokens are broken (daryn) + + HDFS-3718. Datanode won't shutdown because of runaway DataBlockScanner + thread (Kihwal Lee via daryn) + + HDFS-3861. Deadlock in DFSClient (Kihwal Lee via daryn) + + HDFS-3873. Hftp assumes security is disabled if token fetch fails (daryn) + + HDFS-3852. TestHftpDelegationToken is broken after HADOOP-8225 (daryn) + + HDFS-3890. filecontext mkdirs doesn't apply umask as expected + (Tom Graves via daryn) + +Release 0.23.2 - UNRELEASED + + INCOMPATIBLE CHANGES + + HDFS-2887. FSVolume, is a part of FSDatasetInterface implementation, should + not be referred outside FSDataset. A new FSVolumeInterface is defined. + The BlockVolumeChoosingPolicy.chooseVolume(..) method signature is also + updated. (szetszwo) + + NEW FEATURES + + HDFS-2943. Expose last checkpoint time and transaction stats as JMX + metrics. (atm) + + IMPROVEMENTS + + HDFS-2931. Switch DataNode's BlockVolumeChoosingPolicy to private-audience. + (harsh via szetszwo) + + HDFS-2655. BlockReaderLocal#skip performs unnecessary IO. (Brandon Li + via jitendra) + + HDFS-2725. hdfs script usage information is missing the information + about "dfs" command (Prashant Sharma via stevel) + + HDFS-2907. Add a conf property dfs.datanode.fsdataset.factory to make + FSDataset in Datanode pluggable. (szetszwo) + + HDFS-2985. Improve logging when replicas are marked as corrupt. (todd) + + HDFS-3098. Update and add tests for HADOOP-8173. (Daryn Sharp via szetszwo) + + HDFS-3104. Add tests for HADOOP-8175. (Daryn Sharp via szetszwo) + + HDFS-3066. Cap space usage of default log4j rolling policy. + (Patrick Hunt via eli) + + OPTIMIZATIONS + + HDFS-3024. Improve performance of stringification in addStoredBlock (todd) + + BUG FIXES + HDFS-2923. Namenode IPC handler count uses the wrong configuration key + (todd) + + HDFS-2764. TestBackupNode is racy. (atm) + + HDFS-2869. Fix an error in the webhdfs docs for the mkdir op (harsh) + + HDFS-776. Fix exception handling in Balancer. (Uma Maheswara Rao G + via szetszwo) + + HDFS-2815. Namenode sometimes oes not come out of safemode during + NN crash + restart. (Uma Maheswara Rao via suresh) + + HDFS-2950. Secondary NN HTTPS address should be listed as a + NAMESERVICE_SPECIFIC_KEY. (todd) + + HDFS-2525. Race between BlockPoolSliceScanner and append. (Brandon Li + via jitendra) + + HDFS-2938. Recursive delete of a large directory make namenode + unresponsive. (Hari Mankude via suresh) + + HDFS-2969. ExtendedBlock.equals is incorrectly implemented (todd) + + HDFS-2944. Typo in hdfs-default.xml causes + dfs.client.block.write.replace-datanode-on-failure.enable to be mistakenly + disabled. (atm) + + HDFS-2981. In hdfs-default.xml, the default value of + dfs.client.block.write.replace-datanode-on-failure.enable should be true. + (szetszwo) + + HDFS-3008. Negative caching of local addrs doesn't work. (eli) + + HDFS-3006. In WebHDFS, when the return body is empty, set the Content-Type + to application/octet-stream instead of application/json. (szetszwo) + + HDFS-2991. Fix case where OP_ADD would not be logged in append(). (todd) + + HDFS-3012. Exception while renewing delegation token. (Bobby Evans via + jitendra) + + HDFS-3032. Change DFSClient.renewLease() so that it only retries up to the + lease soft-limit. (Kihwal Lee via szetszwo) + + HDFS-2038. Update TestHDFSCLI to handle relative paths with globs. + (Kihwal Lee via szetszwo) + + HDFS-3101. Cannot read empty file using WebHDFS. (szetszwo) + + HDFS-3160. httpfs should exec catalina instead of forking it. + (Roman Shaposhnik via eli) + +Release 0.23.1 - 2012-02-17 + + INCOMPATIBLE CHANGES + + NEW FEATURES + + HDFS-2316. [umbrella] WebHDFS: a complete FileSystem implementation for + accessing HDFS over HTTP (szetszwo) + + HDFS-2594. Support getDelegationTokens and createSymlink in WebHDFS. + (szetszwo) + + HDFS-2545. Change WebHDFS to support multiple namenodes in federation. + (szetszwo) + + HDFS-2178. Contributing Hoop to HDFS, replacement for HDFS proxy + with read/write capabilities. (tucu) + + + IMPROVEMENTS + HDFS-2560. Refactor BPOfferService to be a static inner class (todd) + + HDFS-2544. Hadoop scripts unconditionally source + "$bin"/../libexec/hadoop-config.sh. (Bruno Mahé via tomwhite) + + HDFS-2543. HADOOP_PREFIX cannot be overridden. (Bruno Mahé via tomwhite) + + HDFS-2562. Refactor DN configuration variables out of DataNode class + (todd) + + HDFS-2563. Some cleanup in BPOfferService. (todd) + + HDFS-2568. Use a set to manage child sockets in XceiverServer. + (harsh via eli) + + HDFS-2454. Move maxXceiverCount check to before starting the + thread in dataXceiver. (harsh via eli) + + HDFS-2570. Add descriptions for dfs.*.https.address in hdfs-default.xml. + (eli) + + HDFS-2536. Remove unused imports. (harsh via eli) + + HDFS-2566. Move BPOfferService to be a non-inner class. (todd) + + HDFS-2552. Add Forrest doc for WebHDFS REST API. (szetszwo) + + HDFS-2587. Add apt doc for WebHDFS REST API. (szetszwo) + + HDFS-2604. Add a log message to show if WebHDFS is enabled and a + configuration section in the forrest doc. (szetszwo) + + HDFS-2511. Add dev script to generate HDFS protobufs. (tucu) + + HDFS-2654. Make BlockReaderLocal not extend RemoteBlockReader2. (eli) + + HDFS-2675. Reduce warning verbosity when double-closing edit logs + (todd) + + HDFS-2335. DataNodeCluster and NNStorage always pull fresh entropy. + (Uma Maheswara Rao G via eli) + + HDFS-2574. Remove references to some deprecated properties in conf + templates and defaults files. (Joe Crobak via harsh) + + HDFS-2722. HttpFs should not be using an int for block size. (harsh) + + HDFS-2710. Add HDFS tests related to HADOOP-7933. (Siddarth Seth via + suresh) + + HDFS-2349. Corruption detected during block transfers between DNs + should log a WARN instead of INFO. (harsh) + + HDFS-2729. Update BlockManager's comments regarding the invalid block + set (harsh) + + HDFS-2726. Fix a logging issue under DFSClient's createBlockOutputStream + method (harsh) + + HDFS-554. Use System.arraycopy in BlockInfo.ensureCapacity. (harsh) + + HDFS-1314. Make dfs.blocksize accept size-indicating prefixes. + (Sho Shimauchi via harsh) + + HDFS-69. Improve the 'dfsadmin' commandline help. (harsh) + + HDFS-2788. HdfsServerConstants#DN_KEEPALIVE_TIMEOUT is dead code. (eli) + + HDFS-362. FSEditLog should not writes long and short as UTF8, and should + not use ArrayWritable for writing non-array items. (Uma Maheswara Rao G + via szetszwo) + + HDFS-2803. Add logging to LeaseRenewer for better lease expiration debugging. + (Jimmy Xiang via todd) + + HDFS-2817. Combine the two TestSafeMode test suites. (todd) + + HDFS-2818. Fix a missing space issue in HDFS webapps' title tags. (Devaraj K via harsh) + + HDFS-2397. Undeprecate SecondaryNameNode. (eli) + + HDFS-2814. NamenodeMXBean does not account for svn revision in the version + information. (Hitesh Shah via jitendra) + + HDFS-2784. Update hftp and hdfs for host-based token support. + (Kihwal Lee via jitendra) + + HDFS-2785. Update webhdfs and httpfs for host-based token support. + (Robert Joseph Evans via jitendra) + + HDFS-2868. Expose xceiver counts via the DataNode MXBean. (harsh) + + HDFS-2786. Fix host-based token incompatibilities in DFSUtil. (Kihwal + Lee via jitendra) + + HDFS-208. name node should warn if only one dir is listed in dfs.name.dir. + (Uma Maheswara Rao G via eli) + + HDFS-3139. Minor Datanode logging improvement. (eli) + + OPTIMIZATIONS + + HDFS-2130. Switch default checksum to CRC32C. (todd) + + HDFS-2533. Remove needless synchronization on some FSDataSet methods. + (todd) + + HDFS-2129. Simplify BlockReader to not inherit from FSInputChecker. + (todd) + + HDFS-2246. Enable reading a block directly from local file system + for a client on the same node as the block file. (Andrew Purtell, + Suresh Srinivas and Jitendra Nath Pandey via szetszwo) + + HDFS-2825. Add test hook to turn off the writer preferring its local + DN. (todd) + + HDFS-2826. Add test case for HDFS-1476 (safemode can initialize + replication queues before exiting) (todd) + + HDFS-2864. Remove some redundant methods and the constant METADATA_VERSION + from FSDataset. (szetszwo) + + HDFS-2879. Change FSDataset to package private. (szetszwo) + + BUG FIXES + + HDFS-2541. For a sufficiently large value of blocks, the DN Scanner + may request a random number with a negative seed value. (harsh via eli) + + HDFS-2502. hdfs-default.xml should include dfs.name.dir.restore. + (harsh via eli) + + HDFS-2567. When 0 DNs are available, show a proper error when + trying to browse DFS via web UI. (harsh via eli) + + HDFS-2575. DFSTestUtil may create empty files (todd) + + HDFS-2588. hdfs jsp pages missing DOCTYPE. (Dave Vronay via mattf) + + HDFS-2590. Fix the missing links in the WebHDFS forrest doc. (szetszwo) + + HDFS-2596. TestDirectoryScanner doesn't test parallel scans. (eli) + + HDFS-2606. webhdfs client filesystem impl must set the content-type + header for create/append. (tucu) + + HDFS-2614. hadoop dist tarball is missing hdfs headers. (tucu) + + HDFS-2653. DFSClient should cache whether addrs are non-local when + short-circuiting is enabled. (eli) + + HDFS-2649. eclipse:eclipse build fails for hadoop-hdfs-httpfs. + (Jason Lowe via eli) + + HDFS-2640. Javadoc generation hangs. (tomwhite) + + HDFS-2553. Fix BlockPoolSliceScanner spinning in a tight loop (Uma + Maheswara Rao G via todd) + + HDFS-2658. HttpFS introduced 70 javadoc warnings. (tucu) + + HDFS-2706. Use configuration for blockInvalidateLimit if it is set. + (szetszwo) + + HDFS-2646. Hadoop HttpFS introduced 4 findbug warnings. (tucu) + + HDFS-2657. TestHttpFSServer and TestServerWebApp are failing on trunk. (tucu) + + HDFS-2705. HttpFS server should check that upload requests have correct + content-type. (tucu) + + HDFS-2707. HttpFS should read the hadoop-auth secret from a file instead + inline from the configuration. (tucu) + + HDFS-2790. FSNamesystem.setTimes throws exception with wrong + configuration name in the message. (Arpit Gupta via eli) + + HDFS-2810. Leases not getting renewed properly by clients (todd) + + HDFS-2751. Datanode may incorrectly drop OS cache behind reads + even for short reads. (todd) + + HDFS-2816. Fix missing license header in httpfs findbugsExcludeFile.xml. + (hitesh via tucu) + + HDFS-2822. processMisReplicatedBlock incorrectly identifies + under-construction blocks as under-replicated. (todd) + + HDFS-442. dfsthroughput in test jar throws NPE (harsh) + + HDFS-2836. HttpFSServer still has 2 javadoc warnings in trunk. + (revans2 via tucu) + + HDFS-2837. mvn javadoc:javadoc not seeing LimitedPrivate class. + (revans2 via tucu) + + HDFS-2840. TestHostnameFilter should work with localhost or + localhost.localdomain (tucu) + + HDFS-2791. If block report races with closing of file, replica is + incorrectly marked corrupt. (todd) + + HDFS-2827. When the parent of a directory is the root, renaming the + directory results in leases updated incorrectly. (Uma Maheswara Rao G + via szetszwo) + + HDFS-2835. Fix findbugs and javadoc issue with GetConf.java. + (suresh) + + HDFS-2889. getNumCurrentReplicas is package private but should be public on + 0.23 (see HDFS-2408). (Gregory Chanan via atm) + + HDFS-2893. The start/stop scripts don't start/stop the 2NN when + using the default configuration. (eli) + +Release 0.23.0 - 2011-11-01 + + INCOMPATIBLE CHANGES + + HDFS-1526. Dfs client name for a map/reduce task should be unique + among threads. (hairong) + + HDFS-1536. Improve HDFS WebUI. (hairong) + + HDFS-2210. Remove hdfsproxy. (eli) + + HDFS-1073. Redesign the NameNode's storage layout for image checkpoints + and edit logs to introduce transaction IDs and be more robust. + Please see HDFS-1073 section below for breakout of individual patches. + + NEW FEATURES + + HDFS-1359. Add BlockPoolID to Block. (suresh) + + HDFS-1365. Federation: propose ClusterID and BlockPoolID format + (Tanping via boryas) + + HDFS-1394. Federation: modify -format option for namenode to generated + new blockpool id and accept newcluster (boryas) + + HDFS-1400. Federation: DataTransferProtocol uses ExtendedBlockPool to + include BlockPoolID in the protocol. (suresh) + + HDFS-1428. Federation : add cluster ID and block pool ID into + Name node web UI(Tanping via boryas) + + HDFS-1450. Federation: Introduce block pool ID into FSDatasetInterface. + (suresh) + + HDFS-1632. Federation: data node storage structure changes and + introduce block pool storage. (Tanping via suresh) + + HDFS-1634. Federation: Convert single threaded DataNode into + per BlockPool thread model.(boryas) + + HDFS-1637. Federation: FSDataset in Datanode should be created after + initial handshake with namenode. (boryas and jitendra) + + HDFS-1653. Federation: Block received message from datanode sends invalid + DatanodeRegistration. (Tanping via suresh) + + HDFS-1645. Federation: DatanodeCommond.Finalize needs to include + BlockPoolId. (suresh) + + HDFS-1638. Federation: DataNode.handleDiskError needs to inform + ALL namenodes if a disk failed (boryas) + + HDFS-1647. Federation: Multiple namenode configuration. (jitendra) + + HDFS-1639. Federation: Add block pool management to FSDataset. (suresh) + + HDFS-1648. Federation: Only DataStorage must be locked using in_use.lock + and no locks must be associated with BlockPoolStorage. (Tanping via suresh) + + HDFS-1641. Federation: Datanode fields that are no longer used should + be removed (boryas) + + HDFS-1642. Federation: add Datanode.getDNRegistration(String bpid) + method (boryas) + + HDFS-1643. Federation: remove namenode argument from DataNode + constructor (boryas) + + HDFS-1657. Federation: Tests that corrupt block files fail due to changed + file path in federation. (suresh) + + HDFS-1661. Federation: Remove unnecessary TODO:FEDERATION comments. + (jitendra) + + HDFS-1660. Federation: Datanode doesn't start with two namenodes (boryas) + + HDFS-1650. Federation: TestReplication fails. (Tanping via suresh) + + HDFS-1651. Federation: Tests fail due to null pointer exception in + Datnode#shutdown() method. (Tanping via suresh) + + HDFS-1649. Federation: Datanode command to refresh namenode list at + the datanode. (jitendra) + + HDFS-1646. Federation: MiniDFSClsuter#waitActive() waits for ever + with the introduction of BPOfferService in datanode. (suresh) + + HDFS-1659. Federation: BPOfferService exits after one iteration + incorrectly. (Tanping via suresh) + + HDFS-1654. Federation: Fix TestDFSUpgrade and TestDFSRollback failures. + (suresh) + + HDFS-1668. Federation: Datanodes sends block pool usage information + to the namenode in heartbeat. (suresh) + + HDFS-1669. Federation: Fix TestHftpFileSystem failure. (suresh) + + HDFS-1670. Federation: remove dnRegistration from Datanode (boryas) + + HDFS-1662. Federation: fix unit test case, TestCheckpoint + and TestDataNodeMXBean (tanping via boryas) + + HDFS-1671. Federation: shutdown in DataNode should be able to + shutdown individual BP threads as well as the whole DN (boryas). + + HDFS-1663. Federation: Rename getPoolId() everywhere to + getBlockPoolId() (tanping via boryas) + + HDFS-1652. FederationL Add support for multiple namenodes in + MiniDFSCluster. (suresh) + + HDFS-1672. Federation: refactor stopDatanode(name) to work + with multiple Block Pools (boryas) + + HDFS-1687. Federation: DirectoryScanner changes for + federation (Matt Foley via boryas) + + HDFS-1626. Make BLOCK_INVALIDATE_LIMIT configurable. (szetszwo) + + HDFS-1655. Federation: DatablockScanner should scan blocks for + all the block pools. (jitendra) + + HDFS-1664. Federation: Add block pool storage usage to Namenode WebUI. + (Tanping via suresh) + + HDFS-1674. Federation: Rename BlockPool class to BlockPoolSlice. + (jghoman, Tanping via suresh) + + HDFS-1673. Federation: Datanode changes to track block token secret per + namenode. (suresh) + + HDFS-1677. Federation: Fix TestFsck and TestListCorruptFileBlocks + failures. (Tanping via suresh) + + HDFS-1678. Federation: Remove unnecessary #getBlockpool() + for NameNodeMXBean in FSNameSystem. (Tanping via Suresh) + + HDFS-1688. Federation: Fix failures in fault injection tests, + TestDiskError, TestDatanodeRestart and TestDFSTartupVersions. (suresh) + + HDFS-1696. Federation: when build version doesn't match - + datanode should wait (keep connecting) untill NN comes up + with the right version (boryas) + + HDFS-1681. Balancer: support per pool and per node policies. (szetszwo) + + HDFS-1695. Federation: Fix testOIV and TestDatanodeUtils + (jhoman and tanping via boryas) + + HDFS-1699. Federation: Fix failure of TestBlockReport. + (Matt Foley via suresh) + + HDFS-1698. Federation: TestOverReplicatedBlocks and TestWriteToReplica + failing. (jhoman and jitendra) + + HDFS-1701. Federation: Fix TestHeartbeathandling. + (Erik Steffl and Tanping Wang via suresh) + + HDFS-1693. Federation: Fix TestDFSStorageStateRecovery failure. (suresh) + + HDFS-1694. Federation: SimulatedFSDataset changes to work with + federation and multiple block pools. (suresh) + + HDFS-1689. Federation: Configuration for namenodes. (suresh and jitendra) + + HDFS-1682. Change Balancer CLI for multiple namenodes and balancing + policy. (szetszwo) + + HDFS-1697. Federation: fix TestBlockRecovery (boryas) + + HDFS-1702. Federation: fix TestBackupNode and TestRefreshNamendoes + failures. (suresh) + + HDFS-1706. Federation: TestFileAppend2, TestFileAppend3 and + TestBlockTokenWithDFS failing. (jitendra) + + HDFS-1704. Federation: Add a tool that lists namenodes, secondary and + backup from configuration file. (suresh) + + HDFS-1711. Federation: create method for updating machine name in + DataNode.java (boryas) + + HDFS-1712. Federation: when looking up datanode we should use machineNmae + (in testOverReplicatedBlocks) (boryas) + + HDFS-1709. Federation: Error "nnaddr url param is null" when clicking on a + node from NN Live Node Link. (jitendra) + + HDFS-1714. Federation: refactor upgrade object in DataNode (boryas) + + HDFS-1715. Federation: warning/error not generated when datanode sees + inconsistent/different Cluster ID between namenodes (boryas) + + HDFS-1715. Federation: warning/error not generated when datanode sees + inconsistent/different Cluster ID between namenodes (boryas) + + HDFS-1716. Federation: Add decommission tests for federated namenodes. + (suresh) + + HDFS-1713. Federation: Prevent DataBlockScanner from running in tight loop. + (jitendra) + + HDFS-1721. Federation: Configuration for principal names should not be + namenode specific. (jitendra) + + HDFS-1717. Federation: FSDataset volumeMap access is not synchronized + correctly. (suresh) + + HDFS-1722. Federation: Add flag to MiniDFSCluser to differentiate between + federation and non-federation modes. (boryas via suresh) + + HDFS-1718. Federation: MiniDFSCluster#waitActive() bug causes some tests + to fail. (suresh) + + HDFS-1719. Federation: Fix TestDFSRemove that fails intermittently. + (suresh) + + HDFS-1720. Federation: FSVolumeSet volumes is not synchronized correctly. + (suresh) + + HDFS-1700. Federation: fsck needs to work with federation changes. + (Matt Foley via suresh) + + HDFS-1482. Add listCorruptFileBlocks to DistributedFileSystem. + (Patrick Kling via hairong) + + HDFS-1448. Add a new tool Offline Edits Viewer (oev). (Erik Steffl + via szetszwo) + + HDFS-1735. Federation: merge FSImage change in federation to + FSImage+NNStorage refactoring in trunk. (suresh) + + HDFS-1737. Federation: Update the layout version for federation + changes. (suresh) + + HDFS-1744. Federation: Add new layout version to offline image viewer + and edits viewer. (suresh) + + HDFS-1745. Federation: Fix fault injection test failures. (suresh) + + HDFS-1746. Federation: TestFileAppend3 fails intermittently. (jitendra) + + HDFS-1703. Improve start/stop scripts and add decommission tool for + federation. (Tanping Wang, Erik Steffl via suresh) + + HDFS-1749. Federation: TestListCorruptFileBlocks failing in federation + branch. (jitendra) + + HDFS-1754. Federation: testFsck fails. (boryas) + + HDFS-1755. Federation: The BPOfferService must always connect to namenode + as the login user. (jitendra) + + HDFS-1675. Support transferring RBW between datanodes. (szetszwo) + + HDFS-1791. Federation: Add command to delete block pool directories + from a datanode. (jitendra) + + HDFS-1761. Add a new DataTransferProtocol operation, Op.TRANSFER_BLOCK, + for transferring RBW/Finalized with acknowledgement and without using RPC. + (szetszwo) + + HDFS-1813. Federation: Authentication using BlockToken in RPC to datanode + fails. (jitendra) + + HDFS-1630. Support fsedits checksum. (hairong) + + HDFS-1606. Provide a stronger data guarantee in the write pipeline by + adding a new datanode when an existing datanode failed. (szetszwo) + + HDFS-1442. Api to get delegation token in Hdfs class. (jitendra) + + HDFS-1070. Speedup namenode image loading and saving by storing only + local file names. (hairong) + + HDFS-1751. Intrinsic limits for HDFS files, directories (daryn via boryas). + + HDFS-1873. Federation: Add cluster management web console. + (Tanping Wang via suresh) + + HDFS-1911 HDFS tests for the newly added viewfs + + HDFS-1814. Add "hdfs groups" command to query the server-side groups + resolved for a user. (Aaron T. Myers via todd) + + HDFS-1914. Federation: namenode storage directories must be configurable + specific to name service. (suresh) + + HDFS-1963. Create RPM and Debian packages for HDFS. Changes deployment + layout to be consistent across the binary tgz, rpm, and deb. + (Eric Yang via omalley) + + HDFS-2058. Change Data Transfer wire protocol to use protocol buffers. + (todd) + + HDFS-2055. Add hflush support to libhdfs. (Travis Crawford via eli) + + HDFS-2083. Query JMX statistics over http via JMXJsonServlet. (tanping) + + HDFS-2156. Make hdfs and mapreduce rpm only depend on the same major + version for common and hdfs. (eyang via omalley) + + HDFS-2202. Add a new DFSAdmin command to set balancer bandwidth of + datanodes without restarting. (Eric Payne via szetszwo) + + HDFS-2284. Add a new FileSystem, webhdfs://, for supporting write Http + access to HDFS. (szetszwo) + + HDFS-2317. Support read access to HDFS in WebHDFS. (szetszwo) + + HDFS-2338. Add configuration option to enable/disable WebHDFS. + (jitendra via szetszwo) + + HDFS-2318. Provide authentication to WebHDFS using SPNEGO and delegation + tokens. (szetszwo) + + HDFS-2340. Support getFileBlockLocations and getDelegationToken in WebHDFS. + (szetszwo) + + HDFS-2348. Support getContentSummary and getFileChecksum in WebHDFS. + (szetszwo) + + HDFS-2385. Support renew and cancel delegation tokens in WebHDFS. + (szetszwo) + + HDFS-2539. Support doAs and GETHOMEDIRECTORY in WebHDFS. + (szetszwo) + + IMPROVEMENTS + + HDFS-1875. MiniDFSCluster hard-codes dfs.datanode.address to localhost + (Eric Payne via mattf) + + HDFS-2019. Fix all the places where Java method File.list is used with + FileUtil.list API (Bharath Mundlapudi via mattf) + + HDFS-1934. Fix NullPointerException when certain File APIs return null + (Bharath Mundlapudi via mattf) + + HDFS-1510. Added test-patch.properties required by test-patch.sh (nigel) + + HDFS-1628. Display full path in AccessControlException. (John George + via szetszwo) + + HDFS-1707. Federation: Failure in browsing data on new namenodes. + (jitendra) + + HDFS-1683. Test Balancer with multiple NameNodes. (szetszwo) + + HDFS-1547. Improve decommission mechanism. (suresh) + + HDFS-2143. Federation: In cluster web console, add link to namenode page + that displays live and dead datanodes. (Ravi Prakash via suresh) + + HDFS-1588. Remove hardcoded strings for configuration keys, "dfs.hosts" + and "dfs.hosts.exlude". (Erik Steffl via suresh) + + HDFS-1481. NameNode should validate fsimage before rolling. (hairong) + + HDFS-1506. Refactor fsimage loading code. (hairong) + + HDFS-1533. A more elegant FileSystem#listCorruptFileBlocks API + (HDFS portion) (Patrick Kling via hairong) + + HDFS-1476. listCorruptFileBlocks should be functional while the + name node is in safe mode. (Patrick Kling via hairong) + + HDFS-1534. Fix some incorrect logs in FSDirectory. (eli) + + HDFS-1539. A config option for the datanode to fsycn a block file + when block is completely written. (dhruba) + + HDFS-1335. HDFS side change of HADDOP-6904: RPC compatibility. (hairong) + + HDFS-1557. Separate Storage from FSImage. (Ivan Kelly via jitendra) + + HDFS-560 Enhancements/tuning to hadoop-hdfs/build.xml + + HDFS-1629. Add a method to BlockPlacementPolicy for keeping the chosen + nodes in the output array. (szetszwo) + + HDFS-1731. Allow using a file to exclude certain tests from build (todd) + + HDFS-1736. Remove the dependency from DatanodeJspHelper to FsShell. + (Daryn Sharp via szetszwo) + + HDFS-780. Revive TestFuseDFS. (eli) + + HDFS-1445. Batch the calls in DataStorage to FileUtil.createHardLink(). + (Matt Foley via jghoman) + + HDFS-1763. Replace hard-coded option strings with variables from + DFSConfigKeys. (eli) + + HDFS-1541. Not marking datanodes dead when namenode in safemode. + (hairong) + + HDFS-1120. Make DataNode's block-to-device placement policy pluggable + (Harsh J Chouraria via todd) + + HDFS-1785. In BlockReceiver and DataXceiver, clientName.length() is used + multiple times for determining whether the source is a client or a + datanode. (szetszwo) + + HDFS-1789. Refactor frequently used codes from DFSOutputStream and + DataXceiver. (szetszwo) + + HDFS-1767. Namenode ignores non-initial block report from datanodes + when in safemode during startup. (Matt Foley via suresh) + + HDFS-1817. Move pipeline_Fi_[39-51] from TestFiDataTransferProtocol + to TestFiPipelineClose. (szetszwo) + + HDFS-1760. In FSDirectory.getFullPathName(..), it is better to return "/" + for root directory instead of an empty string. (Daryn Sharp via szetszwo) + + HDFS-1833. Reduce repeated string constructions and unnecessary fields, + and fix comments in BlockReceiver.PacketResponder. (szetszwo) + + HDFS-1486. Generalize CLITest structure and interfaces to faciliate + upstream adoption (e.g. for web testing). (cos) + + HDFS-1844. Move "fs -help" shell command tests from HDFS to COMMOM; see + also HADOOP-7230. (Daryn Sharp via szetszwo) + + HDFS-1840. In DFSClient, terminate the lease renewing thread when all files + being written are closed for a grace period, and start a new thread when + new files are opened for write. (szetszwo) + + HDFS-1854. make failure message more useful in + DFSTestUtil.waitReplication(). (Matt Foley via eli) + + HDFS-1562. Add rack policy tests. (eli) + + HDFS-1856. TestDatanodeBlockScanner waits forever, errs without giving + information. (Matt Foley via eli) + + HDFS-1295. Improve namenode restart times by short-circuiting the + first block reports from datanodes. (Matt Foley via suresh) + Corrected merge error in DataNode.java. (Matt Foley) + + HDFS-1843. Discover file not found early for file append. + (Bharath Mundlapudi via jitendra) + + HDFS-1862. Improve test reliability of HDFS-1594. (Aaron T. Myers via eli) + + HDFS-1846. Preallocate edit log with OP_INVALID instead of zero bytes + to ensure blocks are actually allocated. (Aaron T. Myers via todd) + + HDFS-1741. Provide a minimal pom file to allow integration of HDFS into Sonar + analysis (cos) + + HDFS-1870. Move and rename DFSClient.LeaseChecker to a seperated class + LeaseRenewer. (szetszwo) + + HDFS-1866. Document dfs.datanode.max.transfer.threads in hdfs-default.xml + (Harsh J Chouraria via todd) + + HDFS-1890. Improve the name, class and value type of the map + LeaseRenewer.pendingCreates. (szetszwo) + + HDFS-1865. Share LeaseRenewer among DFSClients so that there is only a + LeaseRenewer thread per namenode per user. (szetszwo) + + HDFS-1906. Remove logging exception stack trace in client logs when one of + the datanode targets to read from is not reachable. (suresh) + + HDFS-1378. Edit log replay should track and report file offsets in case of + errors. (Aaron T. Myers and Todd Lipcon via todd) + + HDFS-1917. Separate hdfs jars from common in ivy configuration. (Eric Yang + via szetszwo) + + HDFS-1899. GenericTestUtils.formatNamenode should be moved to DFSTestUtil + (Ted Yu via todd) + + HDFS-1117. Metrics 2.0 HDFS instrumentation. (Luke Lu via suresh) + + HDFS-1946. HDFS part of HADOOP-7291. (eli) + + HDFS-1945. Removed the deprecated fields in DataTransferProtocol. + (szetszwo) + + HDFS-1730. Use DaemonFactory from common and delete it from HDFS. + (Tanping via suresh) + + HDFS-1573. Add useful tracing information to Lease Renewer thread names + (todd) + + HDFS-1939. In ivy.xml, test conf should not extend common conf. + (Eric Yang via szetszwo) + + HDFS-1332 Include more information in exceptions and debug messages + when BlockPlacementPolicy cannot be satisfied. (Ted Yu via szetszwo) + + HDFS-1958. Confirmation should be more lenient of user input when + formatting the NameNode. (todd) + + HDFS-1905. Improve namenode -format command by not making -clusterId + parameter mandatory. (Bharath Mundlapudi via suresh) + + HDFS-1877. Add a new test for concurrent read and write. (CW Chung + via szetszwo) + + HDFS-1959. Better error message for missing namenode directory. (eli) + + HDFS-1996. ivy: hdfs test jar should be independent to common test jar. + (Eric Yang via szetszwo) + + HDFS-1812. TestHDFSCLI should clean up cluster in teardown method. + (Uma Maheswara Rao G via todd) + + HDFS-1884. Improve TestDFSStorageStateRecovery to properly throw in the + case of errors. (Aaron T. Myers via todd) + + HDFS-1727. fsck command should display command usage if user passes any + illegal argument. (Sravan Kumar via todd) + + HDFS-1636. If dfs.name.dir points to an empty dir, namenode format + shouldn't require confirmation. (Harsh J Chouraria via todd) + + HDFS-1966. Encapsulate individual DataTransferProtocol op headers. + (szetszwo) + + HDFS-2024. Format TestWriteRead source codes. (CW Chung via szetszwo) + + HDFS-1968. Enhance TestWriteRead to support position/sequential read, + append, truncate and verbose options. (CW Chung via szetszwo) + + HDFS-1986. Add option to get http/https address from + DFSUtil#getInfoServer(). (Tanping via suresh) + + HDFS-2029. In TestWriteRead, check visible length immediately after + openning the file and fix code style. (John George via szetszwo) + + HDFS-2040. Only build libhdfs if a flag is passed. (eli) + + HDFS-1586. Add InterfaceAudience and InterfaceStability annotations to + MiniDFSCluster. (suresh) + + HDFS-2003. Separate FSEditLog reading logic from edit log memory state + building logic. (Ivan Kelly via todd) + + HDFS-2066. Create a package and individual class files for + DataTransferProtocol. (szetszwo) + + HADOOP-7106. Reorganize project SVN layout to "unsplit" the projects. + (todd, nigel) + + HDFS-2046. Force entropy to come from non-true random for tests. (todd) + + HDFS-2073. Add @Override annotation to NameNode. (suresh) + + HDFS-420. Fuse-dfs should cache fs handles. (Brian Bockelman and eli) + + HDFS-1568. Improve the log messages in DataXceiver. (Joey Echeverria via + szetszwo) + + HDFS-2100. Improve TestStorageRestore. (atm) + + HDFS-2092. Remove some object references to Configuration in DFSClient. + (Bharath Mundlapudi via szetszwo) + + HDFS-2087. Declare methods in DataTransferProtocol interface, and change + Sender and Receiver to implement the interface. (szetszwo) + + HDFS-1723. quota errors messages should use the same scale. (Jim Plush via + atm) + + HDFS-2110. StreamFile and ByteRangeInputStream cleanup. (eli) + + HDFS-2107. Move block management code from o.a.h.h.s.namenode to a new + package o.a.h.h.s.blockmanagement. (szetszwo) + + HDFS-2109. Store uMask as member variable to DFSClient.Conf. (Bharath + Mundlapudi via szetszwo) + + HDFS-2111. Add tests for ensuring that the DN will start with a few bad + data directories. (Harsh J Chouraria via todd) + + HDFS-2134. Move DecommissionManager to the blockmanagement package. + (szetszwo) + + HDFS-1977. Stop using StringUtils.stringifyException(). + (Bharath Mundlapudi via jitendra) + + HDFS-2131. Add new tests for the -overwrite/-f option in put and + copyFromLocal by HADOOP-7361. (Uma Maheswara Rao G via szetszwo) + + HDFS-2140. Move Host2NodesMap to the blockmanagement package. (szetszwo) + + HDFS-2154. In TestDFSShell, use TEST_ROOT_DIR and fix some deprecated + warnings. (szetszwo) + + HDFS-2153. Move DFSClientAdapter to test and fix some javac warnings in + OfflineEditsViewerHelper. (szetszwo) + + HDFS-2159. Deprecate DistributedFileSystem.getClient() and fixed the + deprecated warnings in DFSAdmin. (szetszwo) + + HDFS-2157. Improve header comment in o.a.h.hdfs.server.namenode.NameNode. + (atm via eli) + + HDFS-2147. Move cluster network topology to block management and fix some + javac warnings. (szetszwo) + + HDFS-2141. Remove NameNode roles Active and Standby (they become + states of the namenode). (suresh) + + HDFS-2161. Move createNamenode(..), createClientDatanodeProtocolProxy(..) + and Random object creation to DFSUtil; move DFSClient.stringifyToken(..) + to DelegationTokenIdentifier. (szetszwo) + + HDFS-1774. Small optimization to FSDataset. (Uma Maheswara Rao G via eli) + + HDFS-2167. Move dnsToSwitchMapping and hostsReader from FSNamesystem to + DatanodeManager. (szetszwo) + + HDFS-2116. Use Mokito in TestStreamFile and TestByteRangeInputStream. + (Plamen Jeliazkov via shv) + + HDFS-2112. Move ReplicationMonitor to block management. (Uma Maheswara + Rao G via szetszwo) + + HDFS-1739. Add available volume size to the error message when datanode + throws DiskOutOfSpaceException. (Uma Maheswara Rao G via szetszwo) + + HDFS-2144. If SNN shuts down during initialization it does not log the + cause. (Ravi Prakash via atm) + + HDFS-2180. Refactor NameNode HTTP server into new class. (todd) + + HDFS-2198. Remove hardcoded configuration keys. (suresh) + + HDFS-2149. Move EditLogOp serialization formats into FsEditLogOp + implementations. (Ivan Kelly via todd) + + HDFS-2191. Move datanodeMap from FSNamesystem to DatanodeManager. + (szetszwo) + + HDFS-2200. Change FSNamesystem.LOG to package private. (szetszwo) + + HDFS-2195. Refactor StorageDirectory to not be an non-static inner class. + (todd via eli) + + HDFS-2212. Refactor double-buffering code out of EditLogOutputStreams. + (todd via eli) + + HDFS-2199. Move blockTokenSecretManager from FSNamesystem to BlockManager. + (Uma Maheswara Rao G via szetszwo) + + HDFS-2187. Make EditLogInputStream act like an iterator over FSEditLogOps + (Ivan Kelly and todd via todd) + + HDFS-2225. Refactor edit log file management so it's not in classes + which should be generic to the type of edit log storage. (Ivan Kelly + via todd) + + HDFS-2108. Move datanode heartbeat handling from namenode package to + blockmanagement package. (szetszwo) + + HDFS-2226. Clean up counting of operations in FSEditLogLoader (todd) + + HDFS-2228. Move block and datanode code from FSNamesystem to + BlockManager and DatanodeManager. (szetszwo) + + HDFS-2238. In NamenodeFsck.toString(), uses StringBuilder.(..) instead of + string concatenation. (Uma Maheswara Rao G via szetszwo) + + HDFS-2230. ivy to resolve/retrieve latest common-tests jar published by + hadoop common maven build. (gkesavan) + + HDFS-2227. getRemoteEditLogManifest should pull its information from + FileJournalManager during checkpoint process (Ivan Kelly and Todd Lipcon + via todd) + + HDFS-2239. Reduce access levels of the fields and methods in FSNamesystem. + (szetszwo) + + HDFS-2241. Remove implementing FSConstants interface to just get the + constants from the interface. (suresh) + + HDFS-2237. Change UnderReplicatedBlocks from public to package private. + (szetszwo) + + HDFS-2233. Add WebUI tests with URI reserved chars. (eli) + + HDFS-2265. Remove unnecessary BlockTokenSecretManager fields/methods from + BlockManager. (szetszwo) + + HDFS-2260. Refactor BlockReader into an interface and implementation. + (todd) + + HDFS-2096. Mavenization of hadoop-hdfs (Alejandro Abdelnur via tomwhite) + + HDFS-2273. Refactor BlockManager.recentInvalidateSets to a new class. + (szetszwo) + + HDFS-2266. Add Namesystem and SafeMode interfaces to avoid directly + referring to FSNamesystem in BlockManager. (szetszwo) + + HDFS-1217. Change some NameNode methods from public to package private. + (Laxman via szetszwo) + + HDFS-1620. Rename HdfsConstants -> HdfsServerConstants, FSConstants -> + HdfsConstants. (Harsh J Chouraria via atm) + + HDFS-2197. Refactor RPC call implementations out of NameNode class (todd) + + HDFS-2332. Add test for HADOOP-7629 (using an immutable FsPermission + object as an RPC parameter fails). (todd) + + HDFS-2363. Move datanodes size printing from FSNamesystem.metasave(..) + to BlockManager. (Uma Maheswara Rao G via szetszwo) + + HDFS-2209. Make MiniDFS easier to embed in other apps. (stevel) + + HDFS-2205. Log message for failed connection to datanode is not + followed by a success message. (Ravi Prakash via stevel) + + HDFS-2401. Running a set of methods in a Single Test Class. + (Jonathan Eagles via mahadev) + + HDFS-2471. Add federation documentation. (suresh) + + HDFS-2485. Improve code layout and constants in UnderReplicatedBlocks + (stevel) + + HDFS-2356. Support case insensitive query parameter names in WebHDFS. + (szetszwo) + + HDFS-2368. Move SPNEGO conf properties from hdfs-default.xml to + hdfs-site.xml. (szetszwo) + + HDFS-2395. Add a root element in the JSON responses of WebHDFS. + (szetszwo) + + HDFS-2427. Change the default permission in WebHDFS to 755 and add range + check/validation for all parameters. (szetszwo) + + HDFS-2501. Add version prefix and root methods to WebHDFS. (szetszwo) + + HDFS-1869. mkdirs should use the supplied permission for all of the created + directories. (Daryn Sharp via szetszwo) + + HDFS-2355. Federation: enable using the same configuration file across + all the nodes in the cluster. (suresh) + + HDFS-2371. Refactor BlockSender.java for better readability. (suresh) + + HDFS-2493. Remove reference to FSNamesystem in blockmanagement classes. + (szetszwo) + + HDFS-2294. Download of commons-daemon TAR should not be under target (tucu) + + HDFS-2322. the build fails in Windows because commons-daemon TAR cannot be + fetched. (tucu) + + HDFS-2436. Change FSNamesystem.setTimes(..) for allowing setting times on + directories. (Uma Maheswara Rao G via szetszwo) + + HDFS-2512. Add textual error message to data transfer protocol responses + (todd) + + HDFS-2521. Remove custom checksum headers from data transfer protocol + (todd) + + HDFS-2308. NamenodeProtocol.endCheckpoint is vestigial and can be removed. + (eli) + + HDFS-2507. Allow saveNamespace operations to be canceled. (todd) + + OPTIMIZATIONS + + HDFS-1458. Improve checkpoint performance by avoiding unnecessary image + downloads and loading. (hairong) + + HDFS-1601. Pipeline ACKs are sent as lots of tiny TCP packets (todd) + + HDFS-1826. NameNode should save image to name directories in parallel + during upgrade. (Matt Foley via hairong) + + HDFS-2030. Improve usability of namenode -upgrade command. + (Bharath Mundlapudi via suresh) + + HDFS-2056. Update fetchdt usage. (Tanping Wang via jitendra) + + HDFS-2118. Couple dfs data dir improvements. (eli) + + HDFS-2500. Avoid file system operations in BPOfferService thread while + processing deletes. (todd) + + HDFS-2465. Add HDFS support for fadvise readahead and drop-behind. (todd) + + BUG FIXES + + HDFS-2344. Fix the TestOfflineEditsViewer test failure in 0.23 branch. + (Uma Maheswara Rao G via mattf) + + HDFS-2347. Fix checkpointTxnCount's comment about editlog size. + (Uma Maheswara Rao G via mattf) + + HDFS-2011. Removal and restoration of storage directories on checkpointing + failure doesn't work properly. (Ravi Prakash via mattf) + + HDFS-1955. FSImage.doUpgrade() was made too fault-tolerant by HDFS-1826. + (mattf) + + HDFS-2061. Two minor bugs in BlockManager block report processing. (mattf) + + HDFS-1449. Fix test failures - ExtendedBlock must return + block file name in #getBlockName(). (suresh) + + HDFS-1680. Fix TestBalancer. (szetszwo) + + HDFS-1705. Balancer command throws NullPointerException. (suresh via + szetszwo) + + HDFS-1559. Add missing UGM overrides to TestRefreshUserMappings + (Todd Lipcon via eli) + + HDFS-1585. Fix build after HDFS-1547 (todd) + + HDFS-1684. Balancer cannot start with with multiple namenodes. (szetszwo) + + HDFS-1516. mvn-install is broken after 0.22 branch creation. (cos) + + HDFS-1360. TestBlockRecovery should bind ephemeral ports. + (Todd Lipcon via hairong) + + HDFS-1551. Fix pom templates dependency list (gkesavan) + + HDFS-1509. A savenamespace command writes the fsimage and edits into + all configured directories. (dhruba) + + HDFS-1540. Make Datanode handle errors from RPC calls to namenode + more elegantly. (dhruba) + + HDFS-1463. Accesstime of a file is not updated in safeMode. (dhruba) + + HDFS-863. Potential deadlock in TestOverReplicatedBlocks. + (Ken Goodhope via jghoman) + + HDFS-1607. Fix referenced to misspelled method name getProtocolSigature + (todd) + + HDFS-1610. Fix TestClientProtocolWithDelegationToken and TestBlockToken + on trunk after HADOOP-6904 (todd) + + HDFS-1600. Fix release audit warnings on trunk. (todd) + + HDFS-1691. Remove a duplicated static initializer for reading default + configurations in DFSck. (Alexey Diomin via szetszwo) + + HDFS-1748. Balancer utilization classification is incomplete. (szetszwo) + + HDFS-1738. change hdfs jmxget to return an empty string instead of + null when an attribute value is not available (tanping vi boryas) + + HDFS-1757. Don't compile fuse-dfs by default. (eli) + + HDFS-1770. TestFiRename fails due to invalid block size. (eli) + + HDFS-1797. Fix new findbugs warning introduced by HDFS-1120 (todd) + + HDFS-1611. Fix up some log messages in DFSClient and MBean registration + (Uma Maheswara Rao G via todd) + + HDFS-1543. Reduce dev. cycle time by moving system testing artifacts from + default build and push to maven for HDFS (Luke Lu via cos) + + HDFS-1818. TestHDFSCLI is failing on trunk after HADOOP-7202. + (Aaron T. Myers via todd) + + HDFS-1828. TestBlocksWithNotEnoughRacks intermittently fails assert. + (Matt Foley via eli) + + HDFS-1824. delay instantiation of file system object until it is + needed (linked to HADOOP-7207) (boryas) + + HDFS-1831. Fix append bug in FileContext and implement CreateFlag + check (related to HADOOP-7223). (suresh) + + HDFS-1594. When the disk becomes full Namenode is getting shutdown and + not able to recover. (Aaron T. Myers via eli) + + HDFS-1822. Handle editlog opcode conflict with 0.20.203 during upgrade, + by throwing an error to indicate the editlog needs to be empty. + (suresh) + + HDFS-1808. TestBalancer waits forever, errs without giving information. + (Matt Foley via eli) + + HDFS-1829. TestNodeCount waits forever, errs without giving information. + (Matt Foley via eli) + + HDFS-1860. when renewing/canceling DelegationToken over http we need to + pass exception information back to the caller.(boryas) + + HDFS-1871. Mapreduce build fails due to MiniDFSCluster change from + HDFS-1052. (suresh) + + HDFS-1876. One MiniDFSCluster constructor ignores numDataNodes parameter + (todd) + + HDFS-1773. Do not show decommissioned datanodes, which are not in both + include and exclude lists, on web and JMX interfaces. + (Tanping Wang via szetszwo) + + HDFS-1888. MiniDFSCluster#corruptBlockOnDatanodes() access must be + public. (suresh) + + HDFS-1889. incorrect path in start/stop dfs script. (John George via eli) + + HDFS-1891. Disable IPV6 for junit tests to fix TestBackupNode failure. + (suresh) + + HDFS-1898. Tests failing on trunk due to use of NameNode.format. + (todd via eli) + + HDFS-1902. Fix setrep path display for TestHDFSCLI. (Daryn Sharp + via szetszwo) + + HDFS-1827. Fix timeout problem in TestBlockReplacement. (Matt Foley + via szetszwo) + + HDFS-1908. Fix a NullPointerException in fi.DataTransferTestUtil. + (szetszwo) + + HDFS-1912. Update tests for FsShell standardized error messages. + (Daryn Sharp via szetszwo) + + HDFS-1903. Fix path display for rm/rmr in TestHDFSCLI and TestDFSShell. + (Daryn Sharp via szetszwo) + + HDFS-1627. Fix NullPointerException in Secondary NameNode. (hairong) + + HDFS-1928. Fix path display for touchz in TestHDFSCLI. + (Daryn Sharp via todd) + + HDFS-1938. Fix ivy-retrieve-hdfs dependence in build.xml and aop.xml. + (Eric Yang via szetszwo) + + HDFS-1929. TestEditLogFileOutputStream fails if running on same host as NN + (Aaron T. Myers via todd) + + HDFS-1933. Update TestDFSShell for improved "test" shell command. (Daryn + Sharp via todd) + + HDFS-1931. Update TestDFSShell for improved "du" shell command. (Daryn + Sharp via todd) + + HDFS-1439. HDFS Federation: Fix compilation error in TestFiHftp. (suresh) + + HDFS-1881. Federation: after taking snapshot the current directory + of datanode is empty. (Tanping Wang via suresh) + + HDFS-1927. Fix a bug which causes ip=null in NameNode audit log. + (John George via szetszwo) + + HDFS-1953. Federation: Change name node mxbean name in cluster web + console. (Tanping Wang via suresh) + + HDFS-1922. Fix recurring failure of TestJMXGet (Luke Lu via todd) + + HDFS-1371. One bad node can incorrectly flag many files as corrupt. + (Tanping Wang via jitendra) + + HDFS-1943. Fail to start datanode while start-dfs.sh is executed by + root user. (Wei Yongjun via jghoman) + + HDFS-1983. Fix path display for copy and rm commands in TestHDFSCLI and + TestDFSShell. (Daryn Sharp via todd) + + HDFS-1999. Tests use deprecated configs. (Aaron T. Myers via eli) + + HDFS-1592. Datanode startup doesn't honor volumes.tolerated. + (Bharath Mundlapudi via jitendra) + + HDFS-1920. libhdfs does not build for ARM processors. + (Trevor Robinson via eli) + + HDFS-1936. Layout version change from HDFS-1822 causes upgrade failure. + (suresh) + + HDFS-2021. Update numBytesAcked before sending the ack in PacketResponder. + (John George via szetszwo) + + HDFS-2020. Fix TestDFSUpgradeFromImage by removing the use of DataNode + as a singleton. (suresh via todd) + + HDFS-2022. ant binary should build libhdfs. (Eric Yang via eli) + + HDFS-2014. Change HDFS scripts to work in developer enviroment post + RPM packaging changes. (Eric Yang via suresh) + + HDFS-1995. Federation: Minor bug fixes and modification cluster web UI. + (Tanping Wang via suresh) + + HDFS-1907. Fix position read for reading still-being-written file in + DFSInputStream. (John George via szetszwo) + + HDFS-1923. In TestFiDataTransferProtocol2, reduce random sleep time period + and increase the number of datanodes. (szetszwo) + + HDFS-1149. Lease reassignment should be persisted to the edit log. + (Aaron T. Myers via todd) + + HDFS-1998. Federation: Make refresh-namenodes.sh refresh all the + namenode. (Tanping Wang via suresh) + + HDFS-2041. OP_CONCAT_DELETE doesn't properly restore modification time + of the concatenated file when edit logs are replayed. (todd) + + HDFS-2063. libhdfs test is broken. (Eric Yang via eli) + + HDFS-2067. Bump DATA_TRANSFER_VERSION constant in trunk after introduction + of protocol buffers in the protocol. (szetszwo via todd) + + HDFS-2069. Incorrect default trash interval value in the docs. + (Harsh J Chouraria via eli) + + HDFS-1942. Datanode must exist when all the block pool service threads + exit. (Bharath Mundlapudi via suresh) + + HDFS-1656. Fixes an issue to do with fetching of delegation tokens in + HftpFileSystem. Contributed by Kan Zhang. + + HDFS-1692. In secure mode, Datanode process doesn't exit when disks + fail. (Bharath Mundlapudi via suresh) + + HDFS-1734. 'Chunk size to view' option is not working in Name Node UI. + (Uma Maheswara Rao G via jitendra) + + HDFS-2086. If the include hosts list contains host names, after restarting + namenode, data nodes registration is denied. Contributed by Tanping Wang. + + HDFS-2082. SecondaryNameNode web interface doesn't show the right info. (atm) + + HDFS-1321. If service port and main port are the same, there is no clear + log message explaining the issue. (Jim Plush via atm) + + HDFS-1381. HDFS javadocs hard-code references to dfs.namenode.name.dir and + dfs.datanode.data.dir parameters (Jim Plush via atm) + + HDFS-2053. Bug in INodeDirectory#computeContentSummary warning. + (Michael Noll via eli) + + HDFS-1990. Fix resource leaks in BlockReceiver.close(). (Uma Maheswara + Rao G via szetszwo) + + HDFS-2034. Length in DFSInputStream.getBlockRange(..) becomes -ve when + reading only from a currently being written block. (John George via + szetszwo) + + HDFS-2132. Potential resource leak in EditLogFileOutputStream.close. (atm) + + HDFS-2120. on reconnect, DN can connect to NN even with different source + versions. (John George via atm) + + HDFS-2152. TestWriteConfigurationToDFS causing the random failures. (Uma + Maheswara Rao G via atm) + + HDFS-2114. re-commission of a decommissioned node does not delete + excess replicas. (John George via mattf) + + HDFS-1776. Bug in Concat code. (Bharath Mundlapudi via Dmytro Molkov) + + HDFS-2196. Make ant build system work with hadoop-common JAR generated + by Maven. (Alejandro Abdelnur via tomwhite) + + HDFS-2245. Fix a NullPointerException in BlockManager.chooseTarget(..). + (szetszwo) + + HDFS-2229. Fix a deadlock in namenode by enforcing lock acquisition + ordering. (szetszwo) + + HDFS-2235. Encode servlet paths. (eli) + + HDFS-2186. DN volume failures on startup are not counted. (eli) + + HDFS-2240. Fix a deadlock in LeaseRenewer by enforcing lock acquisition + ordering. (szetszwo) + + HDFS-73. DFSOutputStream does not close all the sockets. + (Uma Maheswara Rao G via eli) + + HDFS-1257. Fix a race condition on BlockManager.recentInvalidateSets. + (Eric Payne via szetszwo) + + HDFS-2267. DataXceiver thread name incorrect while waiting on op during + keepalive. (todd) + + HDFS-1480. All replicas of a block can end up on the same rack when + some datanodes are decommissioning. (todd) + + HDFS-2286. DataXceiverServer logs AsynchronousCloseException at shutdown + (todd) + + HDFS-2289. Ensure jsvc is bundled with the HDFS distribution artifact. + (Alejandro Abdelnur via acmurthy) + + HDFS-2314. MRV1 test compilation broken after HDFS-2197 (todd) + + HDFS-2323. start-dfs.sh script fails for tarball install (tomwhite) + + HDFS-2346. TestHost2NodesMap & TestReplicasMap will fail depending upon + execution order of test methods (Laxman via atm) + + HDFS-2345. TestLeaseRecovery2 fails on 0.23 branch (Uma Maheswara Rao G + via atm) + + HDFS-2412. Add backwards-compatibility layer for renamed FSConstants + class (todd) + + HDFS-2414. Fix TestDFSRollback to avoid spurious failures. (todd) + + HDFS-2422. The NN should tolerate the same number of low-resource volumes + as failed volumes (atm) + + HDFS-2467. HftpFileSystem uses incorrect compare for finding delegation + tokens. (omalley) + + HDFS-2331. Fix WebHdfsFileSystem compilation problems for a bug in JDK + version < 1.6.0_26. (Abhijit Suresh Shingate via szetszwo) + + HDFS-2333. Change DFSOutputStream back to package private, otherwise, + there are two SC_START_IN_CTOR findbugs warnings. (szetszwo) + + HDFS-2366. Initialize WebHdfsFileSystem.ugi in object construction. + (szetszwo) + + HDFS-2361. hftp is broken, fixed username checks in JspHelper. (jitendra) + + HDFS-2403. NamenodeWebHdfsMethods.generateDelegationToken(..) does not use + the renewer parameter. (szetszwo) + + HDFS-2409. _HOST in dfs.web.authentication.kerberos.principal. (jitendra) + + HDFS-2404. WebHDFS liststatus json response is not correct. (suresh) + + HDFS-2441. Remove the Content-Type set by HttpServer.QuotingInputFilter in + WebHDFS responses. (szetszwo) + + HDFS-2428. Convert com.sun.jersey.api.ParamException$QueryParamException + to IllegalArgumentException and response it as http BAD_REQUEST in WebHDFS. + (szetszwo) + + HDFS-2424. Added a root element "HdfsFileStatuses" for the response + of WebHDFS listStatus. (szetszwo) + + MAPREDUCE-2764. Fix renewal of dfs delegation tokens. (Owen via jitendra) + + HDFS-2439. Fix NullPointerException in WebHDFS when opening a non-existing + file or creating a file without specifying the replication parameter. + (szetszwo) + + HDFS-2453. Fix http response code for partial content in WebHDFS, added + getDefaultBlockSize() and getDefaultReplication() in WebHdfsFileSystem + and cleared content type in ExceptionHandler. (szetszwo) + + HDFS-2411. The the auth to local mappings are not being respected, with + WebHDFS enabled. (jitendra) + + HDFS-2494. Close the streams and DFSClient in DatanodeWebHdfsMethods. + (Uma Maheswara Rao G via szetszwo) + + HDFS-2298. Fix TestDfsOverAvroRpc by changing ClientProtocol to + not include multiple methods of the same name. (cutting) + + HDFS-2432. WebHDFS: response FORBIDDEN when setReplication on non-files; + clear umask before creating a flie; throw IllegalArgumentException if + setOwner with both owner and group empty; throw FileNotFoundException if + getFileStatus on non-existing files; fix bugs in getBlockLocations; and + changed getFileChecksum json response root to "FileChecksum". (szetszwo) + + HDFS-2065. Add null checks in DFSClient.getFileChecksum(..). (Uma + Maheswara Rao G via szetszwo) + + HDFS-2522. Disable TestDfsOverAvroRpc test. (suresh) + + HDFS-2416. distcp with a WebHDFS uri on a secure cluster fails. (jitendra) + + HDFS-2527. WebHDFS: remove the use of "Range" header in Open; use ugi + username if renewer parameter is null in GetDelegationToken; response OK + when setting replication for non-files; rename GETFILEBLOCKLOCATIONS to + GET_BLOCK_LOCATIONS and state that it is a private unstable API; replace + isDirectory and isSymlink with enum {FILE, DIRECTORY, SYMLINK} in + HdfsFileStatus JSON object. (szetszwo) + + HDFS-2528. WebHDFS: set delegation kind to WEBHDFS and add a HDFS token + when http requests are redirected to datanode. (szetszwo) + + HDFS-2540. WebHDFS: change "Expect: 100-continue" to two-step write; change + "HdfsFileStatus" and "localName" respectively to "FileStatus" and + "pathSuffix" in JSON response. (szetszwo) + + BREAKDOWN OF HDFS-1073 SUBTASKS + + HDFS-1521. Persist transaction ID on disk between NN restarts. + (Ivan Kelly and Todd Lipcon via todd) + + HDFS-1538. Refactor more startup and image loading code out of FSImage. + (todd) + + HDFS-1729. Add code to detect valid length of an edits file. (todd) + + HDFS-1793. Add code to inspect a storage directory with txid-based + filenames (todd) + + HDFS-1794. Add code to list which edit logs are available on a remote NN + (todd) + + HDFS-1858. Add state management variables to FSEditLog (Ivan Kelly and Todd + Lipcon via todd) + + HDFS-1859. Add some convenience functions to iterate over edit log streams + (Ivan Kelly and Todd Lipcon via todd) + + HDFS-1894. Add constants for LAYOUT_VERSIONs in edits log branch (todd) + + HDFS-1892. Fix EditLogFileInputStream.getValidLength to be aware of + OP_INVALID filler (todd) + + HDFS-1799. Refactor log rolling and filename management out of FSEditLog + (Ivan Kelly and Todd Lipcon via todd) + + HDFS-1801. Remove use of timestamps to identify checkpoints and logs (todd) + + HDFS-1930. TestDFSUpgrade failing in HDFS-1073 branch (todd) + + HDFS-1800. Extend image checksumming to function with multiple fsimage + files per directory. (todd) + + HDFS-1725. Set storage directories only at FSImage construction (Ivan Kelly + via todd) + + HDFS-1926. Remove references to StorageDirectory from JournalManager + interface (Ivan Kelly via todd) + + HDFS-1893. Change edit logs and images to be named based on txid (todd) + + HDFS-1985. Clean up image transfer servlet (todd) + + HDFS-1984. Enable multiple secondary namenodes to run simultaneously (todd) + + HDFS-1987. Re-enable TestCheckpoint.testSecondaryImageDownload which was + not running previously. (todd) + + HDFS-1993. TestCheckpoint needs to clean up between cases (todd) + + HDFS-1992. Remove vestiges of NNStorageListener. (todd) + + HDFS-1991. Some refactoring of Secondary NameNode to be able to share more + code with the BackupNode or CheckpointNode. (todd) + + HDFS-1994. Fix race conditions when running two rapidly checkpointing + Secondary NameNodes. (todd) + + HDFS-2001. Remove use of previous.checkpoint and lastcheckpoint.tmp + directories (todd) + + HDFS-2015. Remove checkpointTxId from VERSION file. (todd) + + HDFS-2016. Add infrastructure to remove or archive old and unneeded storage + files within the name directories. (todd) + + HDFS-2047. Improve TestNamespace and TestEditLog in HDFS-1073 branch. + (todd) + + HDFS-2048. Add upgrade tests and fix upgrade from 0.22 with corrupt image. + (todd) + + HDFS-2027. Image inspector should return finalized logs before unfinalized + logs. (todd) + + HDFS-2074. Determine edit log validity by truly reading and validating + transactions. (todd) + + HDFS-2085. Finalize in-progress edit logs at startup. (todd) + + HDFS-2026. SecondaryNameNode should properly handle the case where the + NameNode is reformatted. (todd) + + HDFS-2077. Address checkpoint upload when one of the storage dirs is failed + (todd) + + HDFS-2078. NameNode should not clear directory when restoring removed + storage. (todd) + + HDFS-2088. Move edits log archiving logic into FSEditLog/JournalManager + (todd) + + HDFS-2093. Handle case where an entirely empty log is left during NN crash + (todd) + + HDFS-2102. Zero-pad edits filename to make them lexically sortable. (Ivan + Kelly via todd) + + HDFS-2010. Fix NameNode to exit if all edit streams become inaccessible. + (atm via todd) + + HDFS-2123. Checkpoint interval should be based on txn count, not size. + (todd) + + HDFS-1979. Fix backupnode for new edits/image layout. (todd) + + HDFS-2101. Fix remaining unit tests for new storage filenames. (todd) + + HDFS-2133. Address remaining TODOs and pre-merge cleanup on HDFS-1073 + branch. (todd) + + HDFS-1780. Reduce need to rewrite FSImage on startup. (todd) + + HDFS-2104. Add a flag to the 2NN to format its checkpoint dirs on startup. + (todd) + + HDFS-2135. Fix regression of HDFS-1955 in HDFS-1073 branch. (todd) + + HDFS-2160. Fix CreateEditsLog test tool in HDFS-1073 branch. (todd) + + HDFS-2168. Reenable TestEditLog.testFailedOpen and fix exposed bug. (todd) + + HDFS-2169. Clean up TestCheckpoint and remove TODOs (todd) + + HDFS-2170. Address remaining TODOs in HDFS-1073 branch. (todd) + + HDFS-2172. Address findbugs and javadoc warnings in HDFS-1073 branch. + (todd) + + HDFS-2445. Ensure failed tests exit with proper error code. (Jonathan + Eagles via acmurthy) + +Release 0.22.1 - Unreleased + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + OPTIMIZATIONS + + HDFS-2718. Optimize OP_ADD in edits loading. (shv) + + HDFS-2886. CreateEditLogs should generate a realistic edit log. (shv) + + BUG FIXES + + HDFS-2877. If locking of a storage dir fails, it will remove the other + NN's lock file on exit. (todd) + +Release 0.22.0 - 2011-11-29 + + INCOMPATIBLE CHANGES + + HDFS-1825. Remove thriftfs contrib. (nigel via eli) + + NEW FEATURES + + HDFS-992. Re-factor block access token implementation to conform to the + generic Token interface in Common (Kan Zhang and Jitendra Pandey via jghoman) + + HDFS-599. Allow NameNode to have a seprate port for service requests from + client requests. (Dmytro Molkov via hairong) + + HDFS-1004. Update NN to support Kerberized SSL from HADOOP-6584. + (jghoman and Kan Zhang via jghoman) + + HDFS-1005. Fsck security. (borya and Kan Zhang via jghoman) + + HDFS-1006. getImage/putImage http requests should be https for the case + of security enabled. (borya and jghoman via jghoman) + + HDFS-1033. In secure clusters, NN and SNN should verify that the remote + principal during image and edits transfer. (jghoman) + + HDFS-1023. Allow http server to start as regular principal if https + principal not defined. (jghoman) + + HDFS-1150. Verify datanodes' identities to clients in secure clusters. + (jghoman) + + HDFS-1330. Make RPCs to DataNodes timeout. (hairong) + Added additional unit tests per HADOOP-6889. (John George via mattf) + + HDFS-202. HDFS support of listLocatedStatus introduced in HADOOP-6870. + HDFS piggyback block locations to each file status when listing a + directory. (hairong) + + HDFS-1361. Add -fileStatus operation to NNThroughputBenchmark. (shv) + + HDFS-1435. Provide an option to store fsimage compressed. (hairong) + + HDFS-903. Support fsimage validation through MD5 checksum. (hairong) + + HDFS-1457. Provide an option to throttle image transmission between + pimary and secondary NameNodes. (Yifei Lu and hairong via hairong) + + HDFS-1164. TestHdfsProxy is failing. (Todd Lipcon via cos) + + HDFS-811. Add metrics, failure reporting and additional tests for HDFS-457. + (eli) + + HDFS-895. Allow hflush/sync to occur in parallel with new writes + to the file. (Todd Lipcon via hairong) + + HDFS-528. Add ability for safemode to wait for a minimum number of + live datanodes (Todd Lipcon via eli) + + HDFS-1753. Resource Leak in StreamFile. (Uma Maheswara Rao G via eli) + + IMPROVEMENTS + + HDFS-1304. Add a new unit test for HftpFileSystem.open(..). (szetszwo) + + HDFS-1096. fix for prev. commit. (boryas) + + HDFS-1096. allow dfsadmin/mradmin refresh of superuser proxy group + mappings (boryas) + + HDFS-1146. Javadoc for getDelegationTokenSecretManager in FSNamesystem (jnp via boryas) + + HDFS-1132. Refactor TestFileStatus (Eli Collins via cos) + + HDFS-1163. normalize property names for JT/NN kerberos principal + names in configuration (from HADOOP 6633) (boryas) + + HDFS-1003. authorization checks for inter-server protocol + (based on HADOOP-6600) (boryas) + + HDFS-1061. Memory footprint optimization for INodeFile object. + (Bharath Mundlapudi via jghoman) + + HDFS-1079. Throw exceptions as specified by the AbstractFileSystem + in HDFS implemenation and protocols. (suresh) + + HDFS-1112. Edit log buffer should not grow unfoundedly. (hairong) + + HDFS-1119. Introduce a GSet interface to BlocksMap. (szetszwo) + + HDFS-1184. Replace tabs in code with spaces. (Jeff Ames via jghoman) + + HDFS-1185. Remove duplicate now() functions in DataNode, FSNamesysetm. + (Jeff Ames via jghoman) + + HDFS-1183. Remove some duplicate code in NamenodeJspHelper.java. + (Jeff Ames via jghoman) + + HDFS-1190. Remove unused getNamenode() method from DataNode. + (Jeff Ames via jghoman) + + HDFS-1110. Reuses objects for commonly used file names in namenode to + reduce the heap usage. (suresh) + + HDFS-752. Add interfaces classification to to HDFS source code. (suresh) + + HDFS-947. An Hftp read request is redirected to a datanode that has + the most replicas of the blocks in the file. (Dmytro Molkov via dhruba) + + HDFS-1272. Fixes to take care of the changes in HADOOP-6845. + (Jitendra Pandey via ddas) + + HDFS-1298 - Add support in HDFS for new statistics added in FileSystem + to track the file system operations. (suresh) + + HDFS-1201. The HDFS component for HADOOP-6632. + (Kan Zhang & Jitendra Pandey via ddas) + + HDFS-1307 Add start time, end time and total time taken for FSCK to + FSCK report (suresh) + + HDFS-1302. The HDFS side of the changes corresponding to HADOOP-6861. + (Jitendra Pandey & Owen O'Malley via ddas) + + HDFS-1315. Add fsck event to audit log and remove other audit log events + corresponding to FSCK listStatus and open calls. (suresh) + + HDFS-1178. The NameNode servlets should not use RPC to connect to the + NameNode. (Kan Zhang via jghoman) + + HDFS-1130. Adds dfs.cluster.administrator ACL configuration that can + be used to control who can view the default hdfs servlets. (ddas) + + HDFS-1297. Fix some comments. (Jeff Ames via jghoman) + + HDFS-330. Datanode Web UIs should provide robots.txt. + (Allen Wittenauer via jghoman) + + HDFS-881. Refactor DataNode Packet header into DataTransferProtocol. + (Todd Lipcon via jghoman) + + HDFS-1036. docs for fetchdt + + HDFS-1318. Add JMX interface for read access to namenode and datanode + web UI information. (Tanping Wang via suresh). + + HDFS-1356. Provide information as to whether or not security is + enabled on web interface for NameNode (boryas) + + HDFS-1205. FSDatasetAsyncDiskService should name its threads. + (Todd Lipcon via eli) + + HDFS-1111. Introduce getCorruptFileBlocks() for fsck. (Sriram Rao via shv) + + HDFS-1395. Add @Override to FSDataset methods that implement + FSDatasetInterface methods. (suresh) + + HDFS-1383. Improve the error messages when using hftp://. (szetszwo) + + HDFS-1093. Change the FSNamesystem lock to a read/write lock. (dhruba) + + HDFS-1407. Change DataTransferProtocol methods to use Block instead + of individual elements of Block. (suresh) + + HDFS-1417. Add @Override to SimulatedFSDataset methods that implement + FSDatasetInterface methods. (suresh) + + HDFS-1426. Remove unused method BlockInfo#listCount. (hairong) + + HDFS-1472. Allow programmatic access to fsck output. + (Ramkumar Vadali via dhruba) + + HADOOP-7007. Update the hudson-test-patch ant target to work with the + latest test-patch.sh script (gkesavan) + + HDFS-1462. Refactor edit log loading to a separate class from edit log writing. + (Todd Lipcon via eli) + + HDFS-1485. Fix typo in BlockPlacementPolicy. (Jingguo Yao via shv) + + HDFS-1035. Generate Eclipse's .classpath file from Ivy config. (nigel) + + HDFS-1408. Herriot NN and DN clients should vend statistics. (cos) + + HDFS-1491 Update Hdfs to match the change of methods from protected to public + in AbstractFileSystem (Hadoop-6903) (sanjay) + + HDFS-1160. Improve some FSDataset warnings and comments. (eli) + + HDFS-556. Provide info on failed volumes in the web ui. (eli) + + HDFS-697. Enable asserts for tests by default. (eli) + + HDFS-1187. Modify fetchdt to allow renewing and canceling token. + (Owen O'Malley and Kan Zhang via jghoman) + + HDFS-1387. Update HDFS permissions guide for security. (Todd Lipcon via eli) + + HDFS-455. Make NN and DN handle in a intuitive way comma-separated + configuration strings. (Michele Catasta via eli) + + HDFS-1071. savenamespace should write the fsimage to all configured + fs.name.dir in parallel (Dmytro Molkov via jghoman) + + HDFS-1055. Improve thread naming for DataXceivers. + (Todd Lipcon and Ramkumar Vadali via eli). + + HDFS-718. Configuration parameter to prevent accidental formatting of + HDFS filesystem. (Andrew Ryan via jghoman) + + HDFS-1500. TestOfflineImageViewer failing on trunk. (Todd Lipcon + via hairong) + + HDFS-1483. DFSClient.getBlockLocations should indicate if corresponding + blocks are corrupt. (Patrick Kling via hairong) + + HDFS-259. Remove intentionally corrupt 0.13 directory layout creation. + (Todd Lipcon via eli) + + HDFS-1513. Fix a number of warnings. (eli) + + HDFS-1473. Refactor storage management into separate classes than fsimage + file reading/writing. (Todd Lipcon via eli) + + HDFS-1582. Remove auto-generated native build files. (rvs via eli) + + HDFS-1456. Provide builder for constructing instances of MiniDFSCluster. + (jghoman) + + HDFS-1861. Rename dfs.datanode.max.xcievers and bump its default value. + (eli) + + HDFS-1052. HDFS Federation - Merge of umbrella jira changes from + HDFS-1052 branch into trunk. + + HDFS-1835. DataNode should not depend on SHA1PRNG secure random generator + to generate a storage ID. (John Carrino via todd) + + HDFS-1947. DFSClient should use mapreduce.task.attempt.id. (eli) + + HDFS-1957. Add documentation for HFTP. (Ari Rabkin via todd) + + HDFS-1454. Update the documentation to reflect that clients don't write + blocks to local disk before copying to HDFS. (Harsh J Chouraria via todd) + + HDFS-1980. Move build/webapps deeper in the build directory heirarchy + to aid eclipse users. (todd) + + HDFS-1619. Remove AC_TYPE* from the libhdfs. (Roman Shaposhnik via eli) + + HDFS-1948 Forward port 'hdfs-1520 lightweight namenode operation to + trigger lease recovery' (stack) + + HDFS-1954. Improved corrupt files warning on NameNode web UI. + (Patrick Hunt via shv) + + HDFS-1409. BackupNode registration throwing + UnsupportedActionException("register") instead of "journal". + (Ching-Shen Chen via shv) + + HDFS-2054 BlockSender.sendChunk() prints ERROR for connection closures + encountered during transferToFully() (Kihwal Lee via stack) + + OPTIMIZATIONS + + HDFS-1140. Speedup INode.getPathComponents. (Dmytro Molkov via shv) + + HDFS-1081. Performance regression in + DistributedFileSystem::getFileBlockLocations in secure systems (jghoman) + + HDFS-1114. Implement LightWeightGSet for BlocksMap in order to reduce + NameNode memory footprint. (szetszwo) + + HDFS-1320. Add LOG.isDebugEnabled() guard for each LOG.debug(..). + (Erik Steffl via szetszwo) + + HDFS-1368. Add a block counter to DatanodeDescriptor. (hairong) + + HDFS-1434. Refactor Datanode#startDataNode method into smaller methods. + (suresh) + + HDFS-941. The DFS client should cache and reuse open sockets to datanodes + while performing reads. (bc Wong and Todd Lipcon via todd) + + BUG FIXES + + HDFS-1039. Adding test for JspHelper.getUGI(jnp via boryas) + + HDFS-1019. Incorrect default values for delegation tokens in + hdfs-default.xml (jnp via boryas) + + HDFS-1039. Service should be set in the token in JspHelper.getUGI(jnp via boryas) + + HDFS-1038. FIX. A test missed in a previous commit for this JIRA. (boryas) + + HDFS-1038. In nn_browsedfscontent.jsp fetch delegation token only + if security is enabled. (jnp via boryas) + + HDFS-1044. Cannot submit mapreduce job from secure client to + unsecure sever (boryas) + + HDFS-1021. specify correct server principal for RefreshAuthorizationPolicyProtocol + and RefreshUserToGroupMappingsProtocol protocols in DFSAdmin (for HADOOP-6612) (boryas) + + HDFS-970. fsync fsimage to disk before closing fsimage file. + (Todd Lipcon via dhruba) + + HDFS-1027. Update copyright year to 2010. (Ravi Phulari via jghoman) + + HDFS-1080. SecondaryNameNode image transfer should use the defined http + address rather than local ip address. (jghoman) + + HDFS-1198. Resolving cross-realm principals. (Jitendra Pandey via jghoman) + + HDFS-1118. Fix socketleak on DFSClient. (Zheng Shao via dhruba) + + HDFS-1192. refreshSuperUserGroupsConfiguration should use server side + configuration for the refresh (for HADOOP-6815) (boryas) + + HDFS-1036. in DelegationTokenFetch dfs.getURI returns no port (boryas) + + HDFS-1017. browsedfs jsp should call JspHelper.getUGI rather + than using createRemoteUser() (jnp via boryas) + + HDFS-1250. Namenode should reject block reports and block received + requests from dead datanodes (suresh) + + HDFS-1145. When NameNode is shutdown it does not try to exit + safemode anymore. (dhruba) + + HDFS-1202. DataBlockScanner throws NPE when updated before + initialized. (Todd Lipcon via dhruba) + + HDFS-882. Datanode logs the hostname and port its listening on. + (Steve Loughran via dhruba) + + HDFS-1238. ant eclipse-files has drifted again, (jghoman) + + HDFS-1045. In secure clusters, re-login is necessary for https + clients before opening connections. (jghoman) + + HDFS-1289. Datanode secure mode is broken. (Kan Zhang via jghoman) + + HDFS-1007. HFTP needs to be updated to use delegation tokens (boryas) + + HDFS-1085. HFTP read may fail silently on the client side if there is an + exception on the server side. (szetszwo) + + HDFS-1308. job conf key for the services name of DelegationToken for HFTP + url is constructed incorrectly in HFTPFileSystem (boryas) + + HDFS-1319. Fix location of re-login for secondary namenode from HDFS-999. + (jghoman) + + HDFS-1317. Remove the FILEPATH_PATTERN from hdfsproxy.AuthorizationFilter. + (Rohini Palaniswamy via szetszwo) + + HDFS-912. sed in build.xml on Solaris fails. (Allen Wittenauer via jghoman) + + HDFS-1296. using delegation token over hftp for long running + clients (boryas) + + HDFS-1334. open in HftpFileSystem does not add delegation tokens to the url. + (Jitendra Pandey via jghoman) + + HDFS-1301. TestHDFSProxy need to use server side conf for ProxyUser + stuff. (boryas) + + HDFS-1340. When security is turned off, there is a potential XSS attack. + This patch fixes it by removing delegationtoken string from the URL, + before returning a response to the client. (Jitendra Pandey via ddas) + + HDFS-1347. TestDelegationToken uses mortbay.log for logging (boryas) + + HDFS-1157. Modifications introduced by HDFS-1150 are breaking aspect's + bindings (cos) + + HDFS-1349. Remove empty java files. (Eli Collins) + + HDFS-1340. A null delegation token is appended to the url if security + is disabled when browsing filesystem. (boryas) + + HDFS-1352. Fix jsvc.location. (Eli Collins via jghoman) + + HDFS-1284. TestBlockToken fails. (Kan Zhang via jghoman) + + HDFS-1355. ant veryclean (clean-cache) doesn't clean enough. + (Luke Lu via jghoman) + + HDFS-1353. Remove most of getBlockLocation optimization. (jghoman) + + HDFS-1369. Invalid javadoc reference in FSDatasetMBean.java (Eli Collins) + + HDFS-829. hdfsJniHelper.c: #include <error.h> is not portable. + (Allen Wittenauer via jghoman) + + HDFS-1310. The ClientDatanodeProtocol proxy should be stopped in + DFSInputStream.readBlockLength(..). (sam rash via szetszwo) + + HDFS-1357. HFTP traffic served by DataNode shouldn't use service port + on NameNode. (Kan Zhang via jghoman) + + HDFS-1419. HDFS Federation: Three test cases need minor modification after + the new block id change (Tanping Wang via suresh) + + HDFS-96. HDFS supports blocks larger than 2 GB. + (Patrick Kling via dhruba) + + HDFS-1433. Fix test failures - TestPread and TestFileLimit. (suresh) + + HDFS-1364. Makes long running HFTP-based applications do relogins + if necessary. (Jitendra Pandey via ddas) + + HDFS-1399. Distinct minicluster services (e.g. NN and JT) overwrite each + other's service policies. (Aaron T. Myers via tomwhite) + + HDFS-1440. Fix TestComputeInvalidateWork failure. (suresh) + + HDFS-1498. FSDirectory#unprotectedConcat calls setModificationTime + on a file. (eli) + + HDFS-1625. Ignore disk space values in TestDataNodeMXBean. (szetszwo) + + HDFS-1850. DN should transmit absolute failed volume count rather than + increments to the NN. (eli) + + HDFS-671. Documentation change for updated configuration keys. + (tomwhite via eli) + + HDFS-1544. Ivy resolve force mode should be turned off by default. + (Luke Lu via tomwhite) + + HDFS-1615. seek() on closed DFS input stream throws NullPointerException + (Scott Carey via todd) + + HDFS-1897. Documentation refers to removed option dfs.network.script + (Andrew Whang via todd) + + HDFS-1621. Fix references to hadoop-common-${version} in build.xml + (Jolly Chen via todd) + + HDFS-1505. saveNamespace appears to succeed even if all directories fail + to save. (Aaron T. Myers via todd) + + HDFS-1921. saveNamespace can cause NN to be unable to come up on restart + (Matt Foley via todd) + + HDFS-1925. SafeModeInfo should use the correct constant instead of a + hard-coded value for its default. (Joey Echeverria via todd) + + HDFS-1575. Viewing block from web UI is broken. (Aaron T. Myers via todd) + + HDFS-1932. Ensure that HDFS configuration deprecations are set up in every + spot that HDFS configurations are loaded. (Jolly Chen via todd) + + HDFS-1952. FSEditLog.open() appears to succeed even if all EDITS + directories fail. (Andrew Wang via todd) + + HDFS-1965. IPCs done using block token-based tickets can't reuse + connections (todd) + + HDFS-1978. All but first option in LIBHDFS_OPTS is ignored. (eli) + + HDFS-1964. Fix incorrect HTML unescaping in DatanodeJspHelper + (Aaron T. Myers via todd) + + HDFS-1997. Image transfer process misreports client side exceptions. + (todd via eli) + + HDFS-2000. Missing deprecation for io.bytes.per.checksum. + (Aaron T. Myers vie eli) + + HDFS-977. DataNode.createInterDataNodeProtocolProxy() guards a log + at the wrong level. (Harsh J Chouraria via todd) + + HDFS-1969. Running rollback on new-version namenode destroys the + namespace. (todd) + + HDFS-2039. TestNameNodeMetrics uses a bad test root path, preventing it + from running inside Eclipse. (todd) + + HDFS-988. saveNamespace race can corrupt the edits log. (eli) + + HDFS-2071. Use of isConnected() in DataXceiver is invalid. (Kihwal Lee + via todd) + + HDFS-1981. NameNode does not saveNamespace() when editsNew is empty. + (Uma Maheswara Rao G via shv) + + HDFS-2232. Generalize regular expressions in TestHDFSCLI. + (Plamen Jeliazkov via shv) + + HDFS-2290. Block with corrupt replica is not getting replicated. + (Benoy Antony via shv) + + HDFS-2452. OutOfMemoryError in DataXceiverServer takes down the DataNode + (Uma Maheswara Rao via cos) + + HDFS-2002. Incorrect computation of needed blocks in getTurnOffTip(). + (Plamen Jeliazkov via shv) + + HDFS-2514. Link resolution bug for intermediate symlinks with + relative targets. (eli) + +Release 0.21.1 - Unreleased + + HDFS-1466. TestFcHdfsSymlink relies on /tmp/test not existing. (eli) + + HDFS-874. TestHDFSFileContextMainOperations fails on weirdly + configured DNS hosts. (Todd Lipcon via eli) + + HDFS-1507. TestAbandonBlock should abandon a block. (eli) + + HDFS-1487. FSDirectory.removeBlock() should update diskspace count + of the block owner node (Zhong Wang via eli). + + HDFS-1467. Append pipeline never succeeds with more than one replica. + (Todd Lipcon via eli) + + HDFS-1167. New property for local conf directory in system-test-hdfs.xml + file. (Vinay Thota via cos) + + HDFS-1503. TestSaveNamespace fails. (Todd Lipcon via cos) + + HDFS-1524. Image loader should make sure to read every byte in image file. + (hairong) + + HDFS-1523. TestLargeBlock is failing on trunk. (cos) + + HDFS-1502. TestBlockRecovery triggers NPE in assert. (hairong via cos) + + HDFS-1532. Exclude Findbugs warning in FSImageFormat$Saver. (Todd Lipcon + via cos) + + HDFS-1527. SocketOutputStream.transferToFully fails for blocks >= 2GB on + 32 bit JVM. (Patrick Kling via cos) + + HDFS-1531. Clean up stack traces due to duplicate MXBean registration. + (Todd Lipcon via cos) + + HDFS-613. TestBalancer and TestBlockTokenWithDFS fail Balancer assert. + (Todd Lipcon via cos) + + HDFS-1511. 98 Release Audit warnings on trunk and branch-0.22. + (jghoman) + + HDFS-1560. dfs.data.dir permissions should default to 700. + (Todd Lipcon via eli) + + HDFS-1550. NPE when listing a file with no location. (hairong) + + HDFS-1542. Add test for HADOOP-7082, a deadlock writing Configuration to + HDFS. (todd) + + HDFS-1504. FSImageSaver should catch all exceptions, not just IOE. (todd) + + HDFS-884. DataNode throws IOException if all data directories are + unavailable. (Steve Loughran and shv) + + HDFS-1591. HDFS part of HADOOP-6642. (Chris Douglas, Po Cheung via shv) + + HDFS-900. Corrupt replicas are not processed correctly in block report (shv) + + HDFS-1529. Incorrect handling of interrupts in waitForAckedSeqno can cause + deadlock (todd) + + HDFS-1597. Batched edit log syncs can reset synctxid and throw assertions + (todd) + + HDFS-1602. Fix HADOOP-4885 for it is doesn't work as expected. (boryas) + + HDFS-1618. configure files that are generated as part of the released + tarball need to have executable bit set (Roman Shaposhnik via cos) + + HDFS-981. test-contrib fails due to test-cactus failure (cos) + + HDFS-1001. DataXceiver and BlockReader disagree on when to send/recv + CHECKSUM_OK. (bc Wong via eli) + + HDFS-1781. Fix the path for jsvc in bin/hdfs. (John George via szetszwo) + + HDFS-1782. Fix an NPE in FSNamesystem.startFileInternal(..). + (John George via szetszwo) + + HDFS-1821. Fix username resolution in NameNode.createSymlink(..) and + FSDirectory.addSymlink(..). (John George via szetszwo) + + HDFS-1806. TestBlockReport.blockReport_08() and _09() are timing-dependent + and likely to fail on fast servers. (Matt Foley via eli) + + HDFS-1845. Symlink comes up as directory after namenode restart. + (John George via eli) + + HDFS-1666. Disable failing hdfsproxy test TestAuthorizationFilter (todd) + + HDFS-1823. start-dfs.sh script fails if HADOOP_HOME is not set. + (tomwhite via eli) + +Release 0.21.1 - Unreleased + + HDFS-1411. Correct backup node startup command in hdfs user guide. + (Ching-Shen Chen via shv) + + BUG FIXES + + HDFS-1363. Eliminate second synchronized sections in appendFile(). (shv) + + HDFS-1413. Fix broken links to HDFS Wiki. (shv) + + HDFS-1420. Clover build doesn't generate per-test coverage (cos) + + HDFS-1444. Test related code of build.xml is error-prone and needs to be + re-aligned. (cos) + + HDFS-1343. Instrumented build should be concentrated in one build area (cos) + + HDFS-1452. ant compile-contrib is broken (cos) + + HDFS-1474. ant binary-system is broken (cos) + + HDFS-1292. Allow artifacts to be published to the staging Apache Nexus + Maven Repository. (Giridharan Kesavan via tomwhite) + + HDFS-1552. Remove java5 dependencies from build. (cos) + + HDFS-1189. Quota counts missed between clear quota and set quota. + (John George via szetszwo) + + HDFS-1665. Balancer misuses dfs.heartbeat.interval as milliseconds. + (szetszwo) + + HDFS-1728. SecondaryNameNode.checkpointSize is in bytes but not in MB. + (szetszwo) + + HDFS-1206. TestFiHFlush fails intermittently. (cos) + + HDFS-1548. Fault-injection tests are executed multiple times if invoked + with run-test-hdfs-fault-inject target (cos) + + HDFS-1552. Remove java5 dependencies from build. (cos) + + HDFS-996. JUnit tests should never depend on anything in conf (cos) + + HDFS-1612. Update HDFS design documentation for append, quota, symlink, + block placement and checkpoint/backup node features. (Joe Crobak + via szetszwo) + + + HDFS-1596. Replace fs.checkpoint.* with dfs.namenode.checkpoint.* + in documentations. (Harsh J Chouraria via szetszwo) + + HDFS-1786. Some cli test cases expect a "null" message + (Uma Maheswara Rao G via todd) + + HDFS-1855. TestDatanodeBlockScanner.testBlockCorruptionRecoveryPolicy() + part 2 fails in two different ways. (Matt Foley via eli) + +Release 0.21.0 - 2010-08-13 + + INCOMPATIBLE CHANGES + + HDFS-538. Per the contract elucidated in HADOOP-6201, throw + FileNotFoundException from FileSystem::listStatus rather than returning + null. (Jakob Homan via cdouglas) + + HDFS-602. DistributedFileSystem mkdirs throws FileAlreadyExistsException + instead of FileNotFoundException. (Boris Shkolnik via suresh) + + HDFS-544. Add a "rbw" subdir to DataNode data directory. (hairong) + + HDFS-576. Block report includes under-construction replicas. (shv) + + HDFS-636. SafeMode counts complete blocks only. (shv) + + HDFS-644. Lease recovery, concurrency support. (shv) + + HDFS-570. Get last block length from a data-node when opening a file + being written to. (Tsz Wo (Nicholas), SZE via shv) + + HDFS-657. Remove unused legacy data-node protocol methods. (shv) + + HDFS-658. Block recovery for primary data-node. (shv) + + HDFS-660. Remove deprecated methods from InterDatanodeProtocol. (shv) + + HDFS-512. Block.equals() and compareTo() compare blocks based + only on block Ids, ignoring generation stamps. (shv) + + HDFS-873. Configuration specifies data-node storage directories as URIs. + (shv) + + HDFS-905. Use the new UserGroupInformation from HDFS-6299. + (jghoman via omalley) + + HDFS-984. Persistent delegation tokens. (Jitendra Pandey via shv) + + HDFS-1016. HDFS side change for HADOOP-6569. This jira changes the + error message on the screen when cat a directory or a + non-existent file. (hairong) + + NEW FEATURES + + HDFS-1134. Large-scale Automated Framework. (cos) + + HDFS-436. Introduce AspectJ framework for HDFS code and tests. + (Konstantin Boudnik via szetszwo) + + HDFS-447. Add LDAP lookup to hdfsproxy. (Zhiyong Zhang via cdouglas) + + HDFS-459. Introduce Job History Log Analyzer. (shv) + + HDFS-461. Tool to analyze file size distribution in HDFS. (shv) + + HDFS-492. Add two JSON JSP pages to the Namenode for providing corrupt + blocks/replicas information. (Bill Zeller via szetszwo) + + HDFS-578. Add support for new FileSystem method for clients to get server + defaults. (Kan Zhang via suresh) + + HDFS-595. umask settings in configuration may now use octal or symbolic + instead of decimal. (Jakob Homan via suresh) + + HADOOP-6234. Updated hadoop-core and test jars to propagate new option + dfs.umaskmode in configuration. (Jakob Homan via suresh) + + HDFS-235. Add support for byte ranges in HftpFileSystem to serve + range of bytes from a file. (Bill Zeller via suresh) + + HDFS-385. Add support for an experimental API that allows a module external + to HDFS to specify how HDFS blocks should be placed. (dhruba) + + HADOOP-4952. Update hadoop-core and test jars to propagate new FileContext + file system application interface. (Sanjay Radia via suresh). + + HDFS-567. Add block forensics contrib tool to print history of corrupt and + missing blocks from the HDFS logs. + (Bill Zeller, Jitendra Nath Pandey via suresh). + + HDFS-610. Support o.a.h.fs.FileContext. (Sanjay Radia via szetszwo) + + HDFS-536. Support hflush at DFSClient. (hairong) + + HDFS-517. Introduce BlockInfoUnderConstruction to reflect block replica + states while writing. (shv) + + HDFS-565. Introduce block committing logic during new block allocation + and file close. (shv) + + HDFS-537. DataNode exposes a replica's meta info to BlockReceiver for the + support of dfs writes/hflush. It also updates a replica's bytes received, + bytes on disk, and bytes acked after receiving a packet. (hairong) + + HDFS-585. Datanode should serve up to visible length of a replica for read + requests. (szetszwo) + + HDFS-604. Block report processing for append. (shv) + + HDFS-619. Support replica recovery initialization in datanode for the new + append design. (szetszwo) + + HDFS-592. Allow clients to fetch a new generation stamp from NameNode for + pipeline recovery. (hairong) + + HDFS-624. Support a new algorithm for pipeline recovery and pipeline setup + for append. (hairong) + + HDFS-627. Support replica update in data-node. + (Tsz Wo (Nicholas), SZE and Hairong Kuang via shv) + + HDFS-642. Support pipeline close and close error recovery. (hairong) + + HDFS-631. Rename configuration keys towards API standardization and + backward compatibility. (Jitendra Nath Pandey via suresh) + + HDFS-669. Add unit tests framework (Mockito) (cos, Eli Collins) + + HDFS-731. Support new Syncable interface in HDFS. (hairong) + + HDFS-702. Add HDFS implementation of AbstractFileSystem. + (Sanjay Radio via suresh) + + HDFS-758. Add decommissioning status page to Namenode Web UI. + (Jitendra Nath Pandey via suresh) + + HDFS-814. Add an api to get the visible length of a DFSDataInputStream. + (szetszwo) + + HDFS-654. Add support new atomic rename functionality in HDFS for + supporting rename in FileContext. (suresh) + + HDFS-222. Support for concatenating of files into a single file + without copying. (Boris Shkolnik via hairong) + + HDFS-933. Adds Delegation token based authentication in the NameNode. + (Kan Zhang via ddas) + + HDFS-935. Adds a real user component in Delegation token. + (Jitendra Nath Pandey via ddas) + + HDFS-245. Adds a symlink implementation to HDFS. This complements the new + symlink feature added in HADOOP-6421 (Eli Collins via Sanjay Radia) + + HDFS-1009. Support Kerberos authorization in HDFSProxy. (Srikanth + Sundarrajan via szetszwo) + + HDFS-1091. Implement listStatus that returns an iterator of FileStatus. + (hairong) + + IMPROVEMENTS + + HDFS-381. Remove blocks from DataNode maps when corresponding file + is deleted. (Suresh Srinivas via rangadi) + + HDFS-377. Separate codes which implement DataTransferProtocol. + (szetszwo) + + HDFS-396. NameNode image and edits directories are specified as URIs. + (Luca Telloli via rangadi) + + HDFS-444. Allow to change probability levels dynamically in the fault + injection framework. (Konstantin Boudnik via szetszwo) + + HDFS-352. Documentation for saveNamespace command. (Ravi Phulari via shv) + + HADOOP-6106. Updated hadoop-core and test jars from hudson trunk + build #12. (Giridharan Kesavan) + + HDFS-204. Add a new metrics FilesInGetListingOps to the Namenode. + (Jitendra Nath Pandey via szetszwo) + + HDFS-278. HDFS Outputstream close does not hang forever. (dhruba) + + HDFS-443. Add a new metrics numExpiredHeartbeats to the Namenode. + (Jitendra Nath Pandey via szetszwo) + + HDFS-475. Add new ant targets for fault injection jars and tests. + (Konstantin Boudnik via szetszwo) + + HDFS-458. Create a new ant target, run-commit-test. (Jakob Homan + via szetszwo) + + HDFS-493. Change build.xml so that the fault-injected tests are executed + only by the run-test-*-fault-inject targets. (Konstantin Boudnik via + szetszwo) + + HDFS-446. Improvements to Offline Image Viewer. (Jakob Homan via shv) + + HADOOP-6160. Fix releaseaudit target to run on specific directories. + (gkesavan) + + HDFS-501. Use enum to define the constants in DataTransferProtocol. + (szetszwo) + + HDFS-508. Factor out BlockInfo from BlocksMap. (shv) + + HDFS-510. Rename DatanodeBlockInfo to be ReplicaInfo. + (Jakob Homan & Hairong Kuang via shv) + + HDFS-500. Deprecate NameNode methods deprecated in NameNodeProtocol. + (Jakob Homan via shv) + + HDFS-514. Change DFSClient.namenode from public to private. (Bill Zeller + via szetszwo) + + HDFS-496. Use PureJavaCrc32 in HDFS. (Todd Lipcon via szetszwo) + + HDFS-511. Remove redundant block searches in BlockManager. (shv) + + HDFS-504. Update the modification time of a file when the file + is closed. (Chun Zhang via dhruba) + + HDFS-498. Add development guide and documentation for the fault injection + framework. (Konstantin Boudnik via szetszwo) + + HDFS-524. Further DataTransferProtocol code refactoring. (szetszwo) + + HDFS-529. Use BlockInfo instead of Block to avoid redundant block searches + in BlockManager. (shv) + + HDFS-530. Refactor TestFileAppend* to remove code duplication. + (Konstantin Boudnik via szetszwo) + + HDFS-451. Add fault injection tests for DataTransferProtocol. (szetszwo) + + HDFS-409. Add more access token tests. (Kan Zhang via szetszwo) + + HDFS-546. DatanodeDescriptor iterates blocks as BlockInfo. (shv) + + HDFS-457. Do not shutdown datanode if some, but not all, volumes fail. + (Boris Shkolnik via szetszwo) + + HDFS-548. TestFsck takes nearly 10 minutes to run. (hairong) + + HDFS-539. Refactor fault injeciton pipeline test util for future reuse. + (Konstantin Boudnik via szetszwo) + + HDFS-552. Change TestFiDataTransferProtocol to junit 4 and add a few new + tests. (szetszwo) + + HDFS-563. Simplify the codes in FSNamesystem.getBlockLocations(..). + (szetszwo) + + HDFS-581. Introduce an iterator over blocks in the block report array.(shv) + + HDFS-549. Add a new target, run-with-fault-inject-testcaseonly, which + allows an execution of non-FI tests in FI-enable environment. (Konstantin + Boudnik via szetszwo) + + HDFS-173. Namenode will not block until a large directory deletion + completes. It allows other operations when the deletion is in progress. + (suresh) + + HDFS-551. Create new functional test for a block report. (Konstantin + Boudnik via hairong) + + HDFS-288. Redundant computation in hashCode() implementation. + (szetszwo via tomwhite) + + HDFS-412. Hadoop JMX usage makes Nagios monitoring impossible. + (Brian Bockelman via tomwhite) + + HDFS-472. Update hdfsproxy documentation. Adds a setup guide and design + document. (Zhiyong Zhang via cdouglas) + + HDFS-617. Support non-recursive create(). (Kan Zhang via szetszwo) + + HDFS-618. Support non-recursive mkdir(). (Kan Zhang via szetszwo) + + HDFS-574. Split the documentation between the subprojects. + (Corinne Chandel via omalley) + + HDFS-598. Eclipse launch task for HDFS. (Eli Collins via tomwhite) + + HDFS-641. Move all of the components that depend on map/reduce to + map/reduce. (omalley) + + HDFS-509. Redesign DataNode volumeMap to include all types of Replicas. + (hairong) + + HDFS-562. Add a test for NameNode.getBlockLocations(..) to check read from + un-closed file. (szetszwo) + + HDFS-543. Break FSDatasetInterface#writToBlock() into writeToRemporary, + writeToRBW, ad append. (hairong) + + HDFS-603. Add a new interface, Replica, which is going to replace the use + of Block in datanode. (szetszwo) + + HDFS-589. Change block write protocol to support pipeline recovery. + (hairong) + + HDFS-652. Replace BlockInfo.isUnderConstruction() with isComplete() (shv) + + HDFS-648. Change some methods in AppendTestUtil to public. (Konstantin + Boudnik via szetszwo) + + HDFS-662. Unnecessary info message from DFSClient. (hairong) + + HDFS-518. Create new tests for Append's hflush. (Konstantin Boudnik + via szetszwo) + + HDFS-688. Add configuration resources to DFSAdmin. (shv) + + HDFS-29. Validate the consistency of the lengths of replica and its file + in replica recovery. (szetszwo) + + HDFS-680. Add new access method to a copy of a block's replica. (shv) + + HDFS-704. Unify build property names to facilitate cross-projects + modifications (cos) + + HDFS-705. Create an adapter to access some of package-private methods of + DataNode from tests (cos) + + HDFS-710. Add actions with constraints to the pipeline fault injection + tests and change SleepAction to support uniform random sleeping over an + interval. (szetszwo) + + HDFS-713. Need to properly check the type of the test class from an aspect + (cos) + + HDFS-716. Define a pointcut for pipeline close and add a few fault + injection tests to simulate out of memory problem. (szetszwo) + + HDFS-719. Add 6 fault injection tests for pipeline close to simulate slow + datanodes and disk errors. (szetszwo) + + HDFS-616. Create functional tests for new design of the block report. (cos) + + HDFS-584. Fail the fault-inject build if any advices are mis-bound. (cos) + + HDFS-730. Add 4 fault injection tests to simulate non-responsive datanode + and out-of-memory problem for pipeline close ack. (szetszwo) + + HDFS-728. Create a comprehensive functional test for append. (hairong) + + HDFS-736. commitBlockSynchronization() updates block GS and length + in-place. (shv) + + HADOOP-5107. Use Maven ant tasks to publish the subproject jars. + (Giridharan Kesavan via omalley) + + HDFS-521. Create new tests for pipeline (cos) + + HDFS-764. Places the Block Access token implementation in hdfs project. + (Kan Zhang via ddas) + + HDFS-787. Upgrade some libraries to be consistent with common and + mapreduce. (omalley) + + HDFS-519. Create new tests for lease recovery (cos) + + HDFS-804. New unit tests for concurrent lease recovery (cos) + + HDFS-813. Enable the append test in TestReadWhileWriting. (szetszwo) + + HDFS-145. Cleanup inconsistent block length handling code in + FSNameSystem#addStoredBlock. (hairong) + + HDFS-127. Reset failure count in DFSClient for each block acquiring + operation. (Igor Bolotin via szetszwo) + + HDFS-520. Create new tests for block recovery. (hairong) + + HDFS-1067. Create block recovery tests that handle errors. (hairong) + + HDFS-1107. Turn on append by default. (shv) + + HDFS-968. Use StringBuilder instead of StringBuffer for better + performance. (Kay Kay via suresh) + + HDFS-703. Replace current fault injection implementation with one + from (cos) + + HDFS-754. Reduce ivy console output to observable level (cos) + + HDFS-832. HDFS side of HADOOP-6222. (cos) + + HDFS-840. Change tests to use FileContext test helper introduced in + HADOOP-6394. (Jitendra Nath Pandey via suresh) + + HDFS-685. Use the user-to-groups mapping service in the NameNode. + (boryas, acmurthy) + + HDFS-755. Read multiple checksum chunks at once in DFSInputStream. + (Todd Lipcon via tomwhite) + + HDFS-786. Implement getContentSummary in HftpFileSystem. + (Tsz Wo (Nicholas), SZE via cdouglas) + + HDFS-587. Add support for specifying queue name in mapreduce tests. + (Erik Steffl via suresh) + + HDFS-902 Move contrib/raid to MapReduce. (Eli Collins via omalley) + + HDFS-800. The last block of a file under construction may change to the + COMPLETE state in response to getAdditionalBlock or completeFileInternal. + (hairong) + + HDFS-899. Delegation Token Implementation + and corresponding changes in Namenode and DFS Api to issue, + renew and cancel delegation tokens. (jnp via boryas) + + HDFS-844. Log the filename when file locking fails. (tomwhite) + + HDFS-914. Refactor DFSOutputStream and DFSInputStream out of DFSClient. + (Todd Lipcon via tomwhite) + + HDFS-949. Move DelegationToken into Common so that it can be used by + MapReduce. (omalley) + + HDFS-930. Better error message for DATA_TRANSFER_VERSION mismatched. + (Kay Kay via szetszwo) + + HDFS-986. Delegation token renewing and cancelling should provide + meaningful exceptions when there are failures instead of returning + false. (omalley) + + HADOOP-6579. Upgrade the commons-codec library to 1.4. (omalley) + + HDFS-991. Allow authentication to the web ui via a delegation token. + (omalley) + + HDFS-994. Allow fetching of delegation token from NameNode for hftp. + (Jakob Homan via acmurthy) + + HDFS-998. Quote blocks streamed through jsps. (cdouglas) + + HDFS-729. NameNode API to list files that have missing blocks. + (Rodrigo Schmidt via dhruba) + + HDFS-850. The WebUI display more details about namenode memory usage. + (Dmytro Molkov via dhruba) + + HDFS-826. The DFSOutputStream has a API that returns the number of + active datanode(s) in the current pipeline. (dhruba) + + HDFS-985. HDFS should issue multiple RPCs for listing a large + directory. (hairong) + + HDFS-1043. NNThroughputBenchmark modifications to support benchmarking of + server-side user group resolution. (shv) + + HDFS-892. Optionally use Avro reflection for Namenode RPC. This + is not a complete implementation yet, but rather a starting point. + (cutting) + + HDFS-854. Datanode should scan devices in parallel to generate + block report. (Dmytro Molkov via jhoman) + + HDFS-1032. fsck has an option to list corrupt files. + (Andre Oriai via dhruba) + + HDFS-1024. SecondaryNameNode verifies size of fsimage and edits file. + (Dmytro Molkov via dhruba) + + HDFS-1011. hdfsproxy: Improve log messages by restoring the previous + thread name. (Srikanth Sundarrajan via szetszwo) + + HDFS-997. Allow datanode storage directory permissions to be configurable. + (Luke Lu via cdouglas) + + HDFS-1012. hdfsproxy: Support for fully qualified HDFS path in addition to + simple unqualified path. (Srikanth Sundarrajan via szetszwo) + + HDFS-933. Namenode should issue a delegation token only for kerberos + authenticated clients.(jnp via boryas) + + HDFS-1087. Modify audit log to use a StringBuilder rather than a Formatter. + (cdouglas) + + HDFS-1083. Update TestHDFSCLI not to expect exception class name + in error messages. (suresh) + + HDFS-1099. Add test for umask backward compatibility. (suresh) + + HDFS-1092. Use logging rather than System.err in MiniDFSCluster. + (Kay Kay via jghoman) + + HDFS-1047. Install/deploy source jars to Maven repo. + (Patrick Angeles via jghoman) + + HDFS-666. Unit test for FsShell -text. (cdouglas via jghoman) + + HDFS-1054. Remove unnecessary sleep after failure in nextBlockOutputStream. + (Todd Lipcon via jghoman) + + HDFS-921. Convert TestDFSClientRetries::testNotYetReplicatedErrors + to Mockito. (jghoman) + + HDFS-1100. Override unwrapException in TestFcHdfsSymlink to test + symlink API conformance. (Eli Collins via suresh). + + HDFS-1089. Remove uses of FileContext#isFile, isDirectory, and exists. + (Eli Collins via hairong) + + HDFS-1028. Efficient splitting of path components reduces the time + to load in fsimage by 20%. (Dmytro Molkov via dhruba) + + HDFS-1109. HFTP supports filenames that contains the character "+". + (Dmytro Molkov via dhruba) + + HDFS-853. The HDFS webUI displays the balanced-ness of the cluster. + (Dmytro Molkov via dhruba) + + HDFS-1126. Change HDFS to depend on Hadoop 'common' artifacts instead + of 'core'. (tomwhite) + + HDFS-995. Replace usage of FileStatus#isDir(). (Eli Collins via + tomwhite) + + HDFS-1161. Make DN minimum valid volumes configurable. + (Eli Collins via tomwhite) + + HDFS-1181. Move configuration and script files post split. (tomwhite) + + HDFS-1170. Add more assertions to TestLargeDirectoryDelete. + (Steve Loughran via tomwhite) + + HDFS-1199. Extract a subset of tests for smoke (DOA) validation. (cos) + + HDFS-1174. New properties for suspend and resume process. (Vinay Thota via + cos) + + HDFS-1277. [Herriot] New property for multi user list. (Vinay Thota via + cos) + + HDFS-806. Add new unit tests to the 10-mins 'run-commit-test' target (cos) + + OPTIMIZATIONS + + HDFS-946. NameNode should not return full path name when lisitng a + diretory or getting the status of a file. (hairong) + + BUG FIXES + + HDFS-76. Better error message to users when commands fail because of + lack of quota. Allow quota to be set even if the limit is lower than + current consumption. (Boris Shkolnik via rangadi) + + HADOOP-4687. HDFS is split from Hadoop Core. It is a subproject under + Hadoop (Owen O'Malley) + + HADOOP-6096. Fix Eclipse project and classpath files following project + split. (tomwhite) + + HDFS-195. Handle expired tokens when write pipeline is reestablished. + (Kan Zhang via rangadi) + + HDFS-181. Validate src path in FSNamesystem.getFileInfo(..). (Todd + Lipcon via szetszwo) + + HDFS-441. Remove TestFTPFileSystem. (szetszwo) + + HDFS-440. Fix javadoc broken links in DFSClient. (szetszwo) + + HDFS-480. Fix a typo in the jar name in build.xml. + (Konstantin Shvachko via gkesavan) + + HDFS-438. Check for NULL before invoking GenericArgumentParser in + DataNode. (Raghu Angadi) + + HDFS-415. BlockReceiver hangs in case of certain runtime exceptions. + (Konstantin Boudnik via rangadi) + + HDFS-462. loadFSImage should close edits file. (Jakob Homan via shv) + + HDFS-489. Update TestHDFSCLI for the -skipTrash option in rm. (Jakob Homan + via szetszwo) + + HDFS-445. pread() does not pick up changes to block locations. + (Kan Zhang via rangadi) + + HDFS-463. CreateEditLog utility broken after HDFS-396 (URI for + FSImage). (Suresh Srinivas via rangadi) + + HDFS-484. Fix bin-package and package target to package jar files. + (gkesavan) + + HDFS-490. Eliminate the deprecated warnings introduced by H-5438. + (He Yongqiang via szetszwo) + + HDFS-119. Fix a bug in logSync(), which causes NameNode block forever. + (Suresh Srinivas via shv) + + HDFS-534. Include avro in ivy. (szetszwo) + + HDFS-532. Allow applications to know that a read request failed + because block is missing. (dhruba) + + HDFS-561. Fix write pipeline READ_TIMEOUT in DataTransferProtocol. + (Kan Zhang via szetszwo) + + HDFS-553. BlockSender reports wrong failed position in ChecksumException. + (hairong) + + HDFS-568. Set mapred.job.tracker.retire.jobs to false in + src/test/mapred-site.xml for mapreduce tests to run. (Amareshwari + Sriramadasu via szetszwo) + + HDFS-15. All replicas end up on 1 rack. (Jitendra Nath Pandey via hairong) + + HDFS-586. TestBlocksWithNotEnoughRacks sometimes fails. + (Jitendra Nath Pandey via hairong) + + HADOOP-6243. Fixed a NullPointerException in handling deprecated keys. + (Sreekanth Ramakrishnan via yhemanth) + + HDFS-605. Do not run fault injection tests in the run-test-hdfs-with-mr + target. (Konstantin Boudnik via szetszwo) + + HDFS-606. Fix ConcurrentModificationException in invalidateCorruptReplicas() + (shv) + + HDFS-601. TestBlockReport obtains data directories directly from + MiniHDFSCluster. (Konstantin Boudnik via shv) + + HDFS-614. TestDatanodeBlockScanner obtains data directories directly from + MiniHDFSCluster. (shv) + + HDFS-612. Remove the use of org.mortbay.log.Log in FSDataset. (szetszwo) + + HDFS-622. checkMinReplication should count live nodes only. (shv) + + HDFS-629. Remove ReplicationTargetChooser.java along with fixing + import warnings generated by Eclipse. (dhruba) + + HDFS-637. DataNode sends a Success ack when block write fails. (hairong) + + HDFS-640. Fixed TestHDFSFileContextMainOperations.java build failure. (suresh) + + HDFS-547. TestHDFSFileSystemContract#testOutputStreamClosedTwice + sometimes fails with CloseByInterruptException. (hairong) + + HDFS-588. Fix TestFiDataTransferProtocol and TestAppend2 failures. (shv) + + HDFS-550. DataNode restarts may introduce corrupt/duplicated/lost replicas + when handling detached replicas. (hairong) + + HDFS-659. If the the last block is not complete, update its length with + one of its replica's length stored in datanode. (szetszwo) + + HDFS-649. Check null pointers for DataTransferTest. (Konstantin Boudnik + via szetszwo) + + HDFS-661. DataNode upgrade fails on non-existant current directory. + (hairong) + + HDFS-597. Mofication introduced by HDFS-537 breakes an advice binding in + FSDatasetAspects. (Konstantin Boudnik via szetszwo) + + HDFS-665. TestFileAppend2 sometimes hangs. (hairong) + + HDFS-676. Fix NPE in FSDataset.updateReplicaUnderRecovery() (shv) + + HDFS-673. BlockReceiver#PacketResponder should not remove a packet from + the ack queue before its ack is sent. (hairong) + + HDFS-682. Fix bugs in TestBlockUnderConstruction. (szetszwo) + + HDFS-668. TestFileAppend3#TC7 sometimes hangs. (hairong) + + HDFS-679. Appending to a partial chunk incorrectly assumes the + first packet fills up the partial chunk. (hairong) + + HDFS-722. Fix callCreateBlockWriteStream pointcut in FSDatasetAspects. + (szetszwo) + + HDFS-690. TestAppend2#testComplexAppend failed on "Too many open files". + (hairong) + + HDFS-725. Support the build error fix for HADOOP-6327. (Sanjay Radia via + szetszwo) + + HDFS-625. Fix NullPointerException thrown from ListPathServlet. (suresh) + + HDFS-735. TestReadWhileWriting has wrong line termination symbols (cos) + + HDFS-691. Fix an overflow error in DFSClient.DFSInputStream.available(). + (szetszwo) + + HDFS-733. TestBlockReport fails intermittently. (cos) + + HDFS-774. Intermittent race condition in TestFiPipelines (cos) + + HDFS-741. TestHFlush test doesn't seek() past previously written part of + the file (cos, szetszwo) + + HDFS-706. Intermittent failures in TestFiHFlush (cos) + + HDFS-646. Fix test-patch failure by adding test-contrib ant target. + (gkesavan) + + HDFS-791. Build is broken after HDFS-787 patch has been applied (cos) + + HDFS-792. TestHDFSCLI is failing. (Todd Lipcon via cos) + + HDFS-781. Namenode metrics PendingDeletionBlocks is not decremented. + (Suresh) + + HDFS-192. Fix TestBackupNode failures. (shv) + + HDFS-797. TestHDFSCLI much slower after HDFS-265 merge. (Todd Lipcon via cos) + + HDFS-824. Stop lease checker in TestReadWhileWriting. (szetszwo) + + HDFS-823. CheckPointer should use addInternalServlet for image-fetching + servlet (jghoman) + + HDFS-456. Fix URI generation for windows file paths. (shv) + + HDFS-812. FSNamesystem#internalReleaseLease throws NullPointerException on + a single-block file's lease recovery. (cos) + + HDFS-724. Pipeline hangs if one of the block receiver is not responsive. + (hairong) + + HDFS-564. Adding pipeline tests 17-35. (hairong) + + HDFS-849. TestFiDataTransferProtocol2#pipeline_Fi_18 sometimes fails. + (hairong) + + HDFS-762. Balancer causes Null Pointer Exception. + (Cristian Ivascu via dhruba) + + HDFS-868. Fix link to Hadoop Upgrade Wiki. (Chris A. Mattmann via shv) + + HDFS-880. TestNNLeaseRecovery fails on windows (cos, shv) + + HDFS-699. Primary datanode should compare replicas' on disk lengths. + (hairong) + + HDFS-897. Fix a bug related to generation stamp comparison in + ReplicasMap. (suresh) + + HDFS-793. Data node should receive the whole packet ack message before it + constructs and sends its own ack message for the packet. (hairong) + + HDFS-101. DFS write pipeline: DFSClient sometimes does not detect second + datanode failure. (hairong) + + HDFS-822. Appends to already-finalized blocks can rename across volumes. + (hairong) + + HDFS-1046. Fix Tomcat version in hdfsproxy/build.xml. (Srikanth + Sundarrajan via szetszwo) + + HDFS-1072. Fix TestReadWhileWriting failure. (Erik Steffl via shv) + + HDFS-913. Rename fault injection test TestRename.java to TestFiRename.java + to include it in tests run by ant target run-test-hdfs-fault-inject. + (suresh) + + HDFS-695. RaidNode should read in configuration from hdfs-site.xml. + (dhruba) + + HDFS-726. Eclipse .classpath template has outdated jar files and is + missing some new ones. (cos) + + HDFS-750. Fix build failure due to TestRename. (suresh) + + HDFS-712. Move libhdfs from mapreduce subproject to hdfs subproject. + (Eli Collins via dhruba) + + HDFS-757. Enable Unit test for HDFS Raid. (dhruba) + + HDFS-611. Prevent DataNode heartbeat times from increasing even when + the DataNode has many blocks to delete. (Zheng Shao via dhruba) + + HDFS-751. Fix TestCrcCorruption to pick up the correct datablocks to + corrupt. (dhruba) + + HDFS-763. Fix slightly misleading report from DataBlockScanner + about corrupted scans. (dhruba) + + HDFS-727. bug setting block size hdfsOpenFile (Eli Collins via cos) + + HDFS-756. libhdfs unit tests do not run. (Eli Collins via cos) + + HDFS-783. libhdfs tests brakes code coverage runs with Clover (cos) + + HDFS-785. Add Apache license to several namenode unit tests. + (Ravi Phulari via jghoman) + + HDFS-802. Update Eclipse configuration to match changes to Ivy + configuration (Edwin Chan via cos) + + HDFS-423. Unbreak FUSE build and fuse_dfs_wrapper.sh (Eli Collins via cos) + + HDFS-825. Build fails to pull latest hadoop-core-* artifacts (cos) + + HDFS-94. The Heap Size printed in the NameNode WebUI is accurate. + (Dmytro Molkov via dhruba) + + HDFS-767. An improved retry policy when the DFSClient is unable to fetch a + block from the datanode. (Ning Zhang via dhruba) + + HDFS-775. FSDataset calls getCapacity() twice. (stevel) + + HDFS-885. Datanode toString() NPEs on null dnRegistration. (stevel) + + HDFS-877. Client-driven block verification not functioning. (Todd + Lipcon via hairong) + + HDFS-630. In DFSOutputStream.nextBlockOutputStream(), the client can + exclude specific datanodes when locating the next block. + (Cosmin Lehene via Stack) + + HDFS-922. Remove unnecessary semicolon added by HDFS-877 that causes + problems for Eclipse compilation. (jghoman) + + HDFS-927 DFSInputStream retries too many times for new block locations + (Todd Lipcon via Stack) + + HDFS-938. Replace calls to UGI.getUserName() with UGI.getShortUserName() + (jghoman) + + HDFS-894. DatanodeID.ipcPort is not updated when existing node + re-registers. (Todd Lipcon via tomwhite) + + HDFS-965. Split TestDelegationToken in to two parts and fix configuration + to allow proxy users in the test. (Jitendra Pandey via omalley) + + HDFS-999. Secondary namenode should login using kerberos if security is + configured (boryas) + + HDFS-856. Hardcoded replication level for new files in fuse-dfs. + (Brian Bockelman via tomwhite) + + HDFS-857. Incorrect type for fuse-dfs capacity can cause "df" to return + negative values on 32-bit machines. (Brian Bockelman via tomwhite) + + HDFS-858. Incorrect return codes for fuse-dfs. (Brian Bockelman via + tomwhite) + + HDFS-859. fuse-dfs utime behavior causes issues with tar. + (Brian Bockelman via tomwhite) + + HDFS-861. fuse-dfs does not support O_RDWR. (Brian Bockelman via tomwhite) + + HDFS-961. dfs_readdir incorrectly parses paths. (Eli Collins via tomwhite) + + HDFS-1015. Fix intermittent failure in TestSecurityTokenEditLog. + (Jitendra Nath Pandey via suresh) + + HDFS-939. libhdfs test is broken. (Eli Collins via tomwhite) + + HDFS-1074. hdfsproxy: Fix bugs in TestProxyUtil. (Srikanth Sundarrajan + via szetszwo) + + HDFS-481. hdfsproxy: Bug Fixes + HdfsProxy to use proxy user to + impresonate the real user. (Srikanth Sundarrajan via szetszwo) + + HDFS-482. Move HsftpFileSystem's ssl.client.do.not.authenticate.server + configuration setting to ssl-client.xml. (Srikanth Sundarrajan via + szetszwo) + + HDFS-1010. hdfsproxy: Retrieve groups from UnixUserGroupInformation + instead of LdapEntry. (Srikanth Sundarrajan via szetszwo) + + HDFS-466. hdfs_write infinite loop when dfs fails and cannot write + files > 2 GB. (Pete Wyckoff via tomwhite) + + HDFS-651. HDFS Docs - fix listing of docs in the doc menu. + (Corinne Chandel via tomwhite) + + HDFS-1014. Error in reading delegation tokens from edit logs. + (Jitendra Nath Pandey via jhoman) + + HDFS-1088. Prevent renaming a symbolik link to its target. + (Eli Collins via suresh) + + HDFS-966. NameNode does not recovers lease when it is in safemode. + (dhruba) + + HDFS-833. Datanode shutdown should log problems with Storage.unlockAll() + (Steve Loughran via dhruba) + + HDFS-1101. TestDiskError.testLocalDirs() fails. (cdouglas via jghoman) + + HDFS-1031. Enhance the webUi to list a few of the corrupted files in HDFS. + (Andre Orian via dhruba) + + HDFS-1078. Create static and dynamic versions of libhdfs. + (Sam Rash via dhruba) + + HDFS-1104. Fsck triggers full GC on NameNode. (hairong) + + HDFS-1141. Closing a file is successful only if the client still has a + valid lease. (Todd Lipcon via dhruba) + + HDFS-1138. Prevent erroneous updation of modification time of a directory + when fsimage loads. (Dmytro Molkov via dhruba) + + HDFS-1000. Updates libhdfs to the new API for UGI (ddas) + + HDFS-609. Create a file with the append flag does not work in HDFS. + (tomwhite) + + HDFS-1255. Fix failing test-libhdfs.sh test. (tomwhite) + + HDFS-1256. libhdfs is missing from the tarball. (tomwhite) + + HDFS-1057. Concurrent readers hit ChecksumExceptions if following a + writer to very end of file. (sam rash via hairong) + + HDFS-1212. Harmonize HDFS JAR library versions with Common. (tomwhite) + + HDFS-1159. clean-cache target removes wrong ivy cache (cos) + + HDFS-1193. -mvn-system-deploy target is broken which inturn fails the + mvn-deploy task leading to unstable mapreduce build (Giridharan + Kesavan via cos) + + HDFS-1299. 'compile-fault-inject' never should be called directly. (cos) + + HDFS-1311. Running tests with 'testcase' cause triple execution of the + same test case (Cos) + + HDFS-1267. fuse-dfs does not compile. (Devaraj Das via tomwhite) + + HDFS-1598. Directory listing on hftp:// does not show .*.crc files. + (szetszwo) + + HDFS-1750. ListPathsServlet should not use HdfsFileStatus.getLocalName() + to get file name since it may return an empty string. (szetszwo) + +Release 0.20.3 - Unreleased + + IMPROVEMENTS + + BUG FIXES + + HDFS-1041. DFSClient.getFileChecksum(..) should retry if connection to + the first datanode fails. (szetszwo) + + HDFS-909. Wait until edits syncing is finishes before purging edits. + (Todd Lipcon via shv) + + HDFS-1258. Clearing namespace quota on "/" corrupts fs image. + (Aaron T. Myers via szetszwo) + + HDFS-1406. TestCLI fails on Ubuntu with default /etc/hosts. (cos) + +Release 0.20.203.0 - 2011-5-11 + + IMPROVEMENTS + + HADOOP-7259. Contrib modules should include the build.properties from + the enclosing hadoop directory. (omalley) + + BUG FIXES + + HDFS-132. Fix namenode to not report files deleted metrics for deletions + done while replaying edits during startup. (suresh & shv) + + HDFS-955. New implementation of saveNamespace() to avoid loss of edits + when name-node fails during saving. (shv) + +Release 0.20.2 - 2009-09-01 + + IMPROVEMENTS + + HDFS-737. Add full path name of the file to the block information and + summary of total number of files, blocks, live and deadnodes to + metasave output. (Jitendra Nath Pandey via suresh) + + HDFS-919. Create test to validate the BlocksVerified metric (Gary Murry + via cos) + + HDFS-907. Add tests for getBlockLocations and totalLoad metrics. + (Ravi Phulari via cos) + + BUG FIXES + + HDFS-686. NullPointerException is thrown while merging edit log and image. + (hairong) + + HDFS-677. Rename failure when both source and destination quota exceeds + results in deletion of source. (suresh) + + HDFS-709. Fix TestDFSShell failure due to rename bug introduced by + HDFS-677. (suresh) + + HDFS-579. Fix DfsTask to follow the semantics of 0.19, regarding non-zero + return values as failures. (Christian Kunz via cdouglas) + + HDFS-723. Fix deadlock in DFSClient#DFSOutputStream. (hairong) + + HDFS-596. Fix memory leak in hdfsFreeFileInfo() for libhdfs. + (Zhang Bingjun via dhruba) + + HDFS-185. Disallow chown, chgrp, chmod, setQuota, and setSpaceQuota when + name-node is in safemode. (Ravi Phulari via shv) + + HDFS-187. Initialize secondary namenode http address in TestStartup. + (Todd Lipcon via szetszwo) + + HDFS-464. Fix memory leaks in libhdfs. (Christian Kunz via suresh) + + HDFS-1377. Quota bug for partial blocks allows quotas to be violated. (eli) + +Release 0.20.1 - 2009-09-01 + + IMPROVEMENTS + + HDFS-438. Improve help message for space quota command. (Raghu Angadi) + + BUG FIXES + + HDFS-167. Fix a bug in DFSClient that caused infinite retries on write. + (Bill Zeller via szetszwo) + + HDFS-527. Remove/deprecate unnecessary DFSClient constructors. (szetszwo) + + HDFS-525. The SimpleDateFormat object in ListPathsServlet is not thread + safe. (Suresh Srinivas and cdouglas) + + HDFS-761. Fix failure to process rename operation from edits log due to + quota verification. (suresh) diff --git a/aarch64/share/doc/hadoop/hdfs/LICENSE.txt b/aarch64/share/doc/hadoop/hdfs/LICENSE.txt new file mode 100644 index 0000000..9660123 --- /dev/null +++ b/aarch64/share/doc/hadoop/hdfs/LICENSE.txt @@ -0,0 +1,271 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. 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Changed MR client to keep trying to reach the application + when it sees that on attempt's AM is down. (Jian He via vinodkv) + + MAPREDUCE-5515. Fixed MR AM's webapp to depend on a new config + mapreduce.ssl.enabled to enable https and disabling it by default as MR AM + needs to set up its own certificates etc and not depend on clusters'. + (Omkar Vinit Joshi via vinodkv) + + MAPREDUCE-5505. Clients should be notified job finished only after job + successfully unregistered (Zhijie Shen via bikas) + + MAPREDUCE-5503. Fixed a test issue in TestMRJobClient. (Jian He via vinodkv) + + MAPREDUCE-5170. Fixed a wrong log message in CombineFileInputFormat class. + (Sangjin Lee via vinodkv) + + MAPREDUCE-5525. Increase timeout of TestDFSIO.testAppend and + TestMRJobsWithHistoryService.testJobHistoryData. (Chuan Liu via cnauroth) + + MAPREDUCE-5513. ConcurrentModificationException in JobControl (Robert + Parker via jlowe) + + MAPREDUCE-5531. Fix compat with hadoop-1 in mapreduce.(TaskID, + TaskAttemptID) by re-introducing missing constructors. (Robert Kanter via + acmurthy) + + MAPREDUCE-5545. org.apache.hadoop.mapred.TestTaskAttemptListenerImpl.testCommitWindow + times out (Robert Kanter via jlowe) + + MAPREDUCE-5529. Fix compat with hadoop-1 in mapred.TotalOrderPartitioner + by re-introducing (get,set)PartitionFile which takes in JobConf. (Robert + Kanter via acmurthy) + + MAPREDUCE-5538. Fixed MR AppMaster to send job-notification URL only after + the job is really done - a bug caused by MAPREDUCE-5505. (Zhijie Shen via + vinodkv) + + MAPREDUCE-5551. Fix compat with hadoop-1 in + SequenceFileAsBinaryOutputFormat.WritableValueBytes by re-introducing + missing constructors. (Zhijie Shen via acmurthy) + + MAPREDUCE-5544. JobClient#getJob loads job conf twice. (Sandy Ryza) + + MAPREDUCE-5536. Fixed MR AM and JHS to respect + mapreduce.jobhistory.webapp.https.address. (Omkar Vinit Joshi via vinodkv) + + MAPREDUCE-5530. Fix compat with hadoop-1 in + mapred.lib.CombinFileInputFormat by re-introducing + isSplittable(FileSystem, Path) api and ensuring semantic compatibility. + (Robert Kanter via acmurthy) + + MAPREDUCE-5459. Update documentation on how to run MRv1 examples on YARN. + (Zhijie Shen via acmurthy) + + MAPREDUCE-5554. hdfs-site.xml included in hadoop-mapreduce-client-jobclient + tests jar is breaking tests for downstream components (Robert Kanter via + Sandy Ryza) + + MAPREDUCE-5489. MR jobs hangs as it does not use the node-blacklisting + feature in RM requests (Zhijie Shen via bikas) + + MAPREDUCE-5442. $HADOOP_MAPRED_HOME/$HADOOP_CONF_DIR setting not working on + Windows. (Yingda Chen via cnauroth) + + MAPREDUCE-5533. Fixed MR speculation code to track any TaskAttempts that + aren't heart-beating for a while, so that we can aggressively speculate + instead of waiting for task-timeout (Xuan Gong via vinodkv) + + MAPREDUCE-5562. Fixed MR App Master to perform pending tasks like staging-dir + cleanup, sending job-end notification correctly when unregister with RM + fails. (Zhijie Shen via vinodkv) + +Release 2.1.1-beta - 2013-09-23 + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + MAPREDUCE-5478. TeraInputFormat unnecessarily defines its own FileSplit + subclass (Sandy Ryza) + + MAPREDUCE-5497. Changed MRAppMaster to sleep only after doing everything else + but just before ClientService to avoid race conditions during RM restart. + (Jian He via vinodkv) + + MAPREDUCE-5379. Include token tracking ids in jobconf. (kkambatl via tucu) + + MAPREDUCE-5523. Added separate configuration properties for https for JHS + without which even when https is enabled, it starts on http port itself. + (Omkar Vinit Joshi via vinodkv) + + OPTIMIZATIONS + + MAPREDUCE-5446. TestJobHistoryEvents and TestJobHistoryParsing have race + conditions (jlowe via kihwal) + + MAPREDUCE-5462. In map-side sort, swap entire meta entries instead of + indexes for better cache performance. (Sandy Ryza) + + MAPREDUCE-1981. Improve getSplits performance by using listLocatedStatus + (Hairong Kuang and Jason Lowe via jlowe) + + BUG FIXES + + MAPREDUCE-5385. Fixed a bug with JobContext getCacheFiles API. (Omkar Vinit + Joshi via vinodkv) + + MAPREDUCE-5428. HistoryFileManager doesn't stop threads when service is + stopped (Karthik Kambatla via jlowe) + + MAPREDUCE-5251. Reducer should not implicate map attempt if it has + insufficient space to fetch map output (Ashwin Shankar via jlowe) + + MAPREDUCE-5317. Stale files left behind for failed jobs (Ravi Prakash via + jlowe) + + MAPREDUCE-5358. MRAppMaster throws invalid transitions for JobImpl + (Devaraj K via jlowe) + + MAPREDUCE-3193. FileInputFormat doesn't read files recursively in the + input path dir (Devaraj K via jlowe) + + MAPREDUCE-5440. TestCopyCommitter Fails on JDK7 (Robert Parker via jlowe) + + MAPREDUCE-5367. Local jobs all use same local working directory + (Sandy Ryza) + + MAPREDUCE-5425. Junit in TestJobHistoryServer failing in jdk 7 (Robert + Parker via jlowe) + + MAPREDUCE-5454. TestDFSIO fails intermittently on JDK7 (Karthik Kambatla + via Sandy Ryza) + + MAPREDUCE-5001. LocalJobRunner has race condition resulting in job + failures (Sandy Ryza via jlowe) + + MAPREDUCE-5466. Changed MR AM to not promote history files of intermediate + AMs in case they are exiting because of errors and thus help history-server + pick up the right history file for the last successful AM. (Jian He via + vinodkv) + + MAPREDUCE-5468. Fix MR AM recovery for map-only jobs. (vinodkv via + acmurthy) + + MAPREDUCE-5470. LocalJobRunner does not work on Windows. (Sandy Ryza via + cnauroth) + + MAPREDUCE-5476. Changed MR AM recovery code to cleanup staging-directory + only after unregistering from the RM. (Jian He via vinodkv) + + MAPREDUCE-5483. revert MAPREDUCE-5357. (rkanter via tucu) + + MAPREDUCE-5441. Changed MR AM to return RUNNING state if exiting when RM + commands to reboot, so that client can continue to track the overall job. + (Jian He via vinodkv) + + MAPREDUCE-5475. MRClientService does not verify ACLs properly (jlowe) + + MAPREDUCE-5414. TestTaskAttempt fails in JDK7 with NPE (Nemon Lou via + devaraj) + + MAPREDUCE-5020. Compile failure with JDK8 (Trevor Robinson via tgraves) + + MAPREDUCE-5164. mapred job and queue commands omit HADOOP_CLIENT_OPTS + (Nemon Lou via devaraj) + + MAPREDUCE-5493. Cleanup in-memory & on-disk segments to prevent leak on + shuffle completion. (jlowe via acmurthy) + +Release 2.1.0-beta - 2013-08-22 + + INCOMPATIBLE CHANGES + + MAPREDUCE-4067. Changed MRClientProtocol api to throw IOException only (Xuan + Gong via vinodkv) + + MAPREDUCE-5234. Change mapred.TaskReport and mapreduce.TaskReport for binary + compatibility with mapred in 1.x but incompatible with 0.23.x. (Mayank Bansal + via vinodkv) + + MAPREDUCE-5156. Change hadoop examples ProgramDriver to be able to run + 1.x examples jar on top of YARN. This change breaks 0.23.x direct usages of + ProgramDriver. (Zhijie Shen via vinodkv) + + MAPREDUCE-5233. Add methods that are changed or removed from JobControl.Job + when compared to 1.x. This breaks 0.23.x users of one API in Job. (Mayank + Bansal via vinodkv) + + MAPREDUCE-5237. Add methods that were removed from ClusterStatus back into + 2.x so as to be compatible with 1.x. Incompatible as + ClusterStatus.UNINITIALIZED_MEMORY_VALUE is a long now and so breaks 0.23.x + but it shouldn't be a big deal in reality. (Zhijie Shen via vinodkv) + + NEW FEATURES + + HADOOP-8562. Enhancements to support Hadoop on Windows Server and Windows + Azure environments. (See breakdown of tasks below for subtasks and + contributors) + + IMPROVEMENTS + + MAPREDUCE-3008. Improvements to cumulative CPU emulation for short running + tasks in Gridmix. (amarrk via tgraves) + + MAPREDUCE-5033. mapred shell script should respect usage flags + (--help -help -h). (Andrew Wang via atm) + + MAPREDUCE-4892. Modify CombineFileInputFormat to not skew input slits' + allocation on small clusters. (Bikas Saha via vinodkv) + + MAPREDUCE-4990. Construct debug strings conditionally in + ShuffleHandler.Shuffle#sendMapOutput(). (kkambatl via tucu) + + MAPREDUCE-4875. coverage fixing for org.apache.hadoop.mapred + (Aleksey Gorshkov via bobby) + + MAPREDUCE-5129. Allow tags to JobHistory for deeper analytics. (billie via + acmurthy) + + MAPREDUCE-3787. [Gridmix] Optimize job monitoring and STRESS mode for + faster job submission. (amarrk via tgraves) + + MAPREDUCE-5079. Changes job recovery to restore state directly from job + history, instaed of simulating state machine events. + (Jason Lowe and Robert Parker via sseth) + + MAPREDUCE-4981. Add WordMean, WordMedian, WordStandardDeviation + to ExamplesDriver. (Plamen Jeliazkov via shv) + + MAPREUDUCE-5059. Change average merge time on Job overview page to be the + time delta between the end of the shuffle and the start of the reduce. + (Omkar Vinit Joshi via vinodkv) + + MAPREDUCE-4985. Add compression option to TestDFSIO usage. + (Plamen Jeliazkov via shv) + + MAPREDUCE-5152. Make MR App to simply pass through the container from RM + instead of extracting and populating information itself to start any + container. (vinodkv) + + MAPREDUCE-5175. Updated MR App to not set envs that will be set by NMs + anyways after YARN-561. (Xuan Gong via vinodkv) + + MAPREDUCE-5069. add concrete common implementations of + CombineFileInputFormat (Sangjin Lee via bobby) + + MAPREDUCE-5145. Changed default max-attempts to be more than one for MR jobs + inline with YARN. (Zhijie Shen via vinodkv) + + MAPREDUCE-5036. Default shuffle handler port should not be 8080. + (Sandy Ryza via tomwhite) + + MAPREDUCE-5159. Change ValueAggregatorJob to add APIs which can support + binary compatibility with hadoop-1 examples. (Zhijie Shen via vinodkv) + + MAPREDUCE-5157. Bring back old sampler related code so that we can support + binary compatibility with hadoop-1 sorter example. (Zhijie Shen via vinodkv) + + MAPREDUCE-5222. Bring back some methods and constants in Jobclient for + binary compatibility with mapred in 1.x. (Karthik Kambatla via vinodkv) + + MAPREDUCE-5235. Bring back old fields and exceptions in Counters for + binary compatibility with mapred in 1.x. (Mayank Bansal via vinodkv) + + MAPREDUCE-5246. Specify application-type at the time of job submission after + YARN-563. (Mayank Bansal via vinodkv) + + MAPREDUCE-5230. Bring back NLineInputFormat.createFileSplit for binary + compatibility with mapred in 1.x (Mayank Bansal via vinodkv) + + MAPREDUCE-5270. Migrated MR app from using BuilderUtil factory methods to + individual record factory methods. (Jian He via vinodkv) + + MAPREDUCE-5263. Bring back old methods and fields in + filecache.DistributedCache for binary compatibility with mapred in 1.x. + (Zhijie Shen via vinodkv) + + MAPREDUCE-5228. Bring back FileInputFormat.Counter and + FileOuputFormat.Counter for binary compatibility with 1.x mapred APIs. + (Mayank Bansal via vinodkv) + + MAPREDUCE-5176. Add annotation for tagging tasks as responsive to + preemption. (Carlo Curino, cdouglas) + + MAPREDUCE-5275. Bring back a couple of APIs in mapreduce.security.TokenCache + for binary compatibility with 1.x mapreduce APIs. (Mayank Bansal via vinodkv) + + MAPREDUCE-5231. Bring back a constructor in mapred's + DBInputFormat.DBRecordReader for binary compatibility with 1.x mapred APIs. + (Zhijie Shen via vinodkv) + + MAPREDUCE-5273. Bring back a couple of protected variables in mapred and + mapreduce CombineFileRecordReader for binary compatibility with 1.x APIs. + (Mayank Bansal via vinodkv) + + MAPREDUCE-5280. Bring back removed constructor and a method in mapreduce + ClusterMetrics for binary compatibility with 1.x APIs. (Mayank Bansal via + vinodkv) + + MAPREDUCE-5289. Updated MR App to use Token directly after YARN-717. (Jian He + via vinodkv) + + MAPREDUCE-5229. Put back FileOutputCommitter.TEMP_DIR_NAME in mapreduce for + binary compatibility with 1.x APIs. (Zhijie Shen via vinodkv) + + MAPREDUCE-5274. Bring back SecureShuffleUtils.toHex in mapreduce for binary + compatibility with 1.x APIs. (Mayank Bansal via vinodkv) + + MAPREDUCE-5300. Fix backward incompatibility for + o.a.h.mapreduce.filecache.DistributedCache. (Zhijie Shen via acmurthy) + + MAPREDUCE-5283. Over 10 different tests have near identical + implementations of AppContext (Sandy Ryza via jlowe) + + MAPREDUCE-5199. Removing ApplicationTokens file as it is no longer needed. + (Daryn Sharp via vinodkv) + + MAPREDUCE-5192. Allow for alternate resolutions of TaskCompletionEvents. + (cdouglas via acmurthy) + + MAPREDUCE-5184. Document compatibility for MapReduce applications in + hadoop-2 vis-a-vis hadoop-1. (Zhijie Shen via acmurthy) + + MAPREDUCE-5194. Heed interrupts during Fetcher shutdown. (cdouglas) + + MAPREDUCE-5326. Added version to shuffle header. (Zhijie Shen via + acmurthy) + + MAPREDUCE-5333. Add test that verifies MRAM works correctly when sending + requests with non-normalized capabilities. (ywskycn via tucu) + + MAPREDUCE-5398. MR changes for YARN-513 (Jian He via bikas) + + OPTIMIZATIONS + + MAPREDUCE-4974. Optimising the LineRecordReader initialize() method + (Gelesh via bobby) + + MAPREDUCE-5268. Improve history server startup performance (Karthik + Kambatla via jlowe) + + MAPREDUCE-5352. Optimize node local splits generated by + CombineFileInputFormat. (sseth) + + BUG FIXES + + MAPREDUCE-4671. AM does not tell the RM about container requests which are + no longer needed. (Bikas Saha via sseth) + + MAPREDUCE-4994. -jt generic command line option does not work. (sandyr via tucu) + + MAPREDUCE-5000. Fixes getCounters when speculating by fixing the selection + of the best attempt for a task. (Jason Lowe via sseth) + + MAPREDUCE-4994. Addendum fixing testcases failures. (sandyr via tucu) + + MAPREDUCE-4846. Some JobQueueInfo methods are public in MR1 but protected + in MR2. (Sandy Ryza via tomwhite) + + MAPREDUCE-5013. mapred.JobStatus compatibility: MR2 missing constructors + from MR1. (Sandy Ryza via tomwhite) + + MAPREDUCE-4951. Container preemption interpreted as task failure. + (Sandy Ryza via tomwhite) + + MAPREDUCE-5008. Merger progress miscounts with respect to EOF_MARKER. + (Sandy Ryza via tomwhite) + + MAPREDUCE-4693. History server should include counters for failed tasks. + (Xuan Gong via sseth) + + MAPREDUCE-4896. mapred queue -info spits out ugly exception when queue does + not exist. (sandyr via tucu) + + MAPREDUCE-3685. Fix bugs in MergeManager to ensure compression codec is + appropriately used and that on-disk segments are correctly sorted on + file-size. (Anty Rao and Ravi Prakash via acmurthy) + + MAPREDUCE-4571. TestHsWebServicesJobs fails on jdk7. (tgraves via tucu) + + MAPREDUCE-4716. TestHsWebServicesJobsQuery.testJobsQueryStateInvalid + fails with jdk7. (tgraves via tucu) + + MAPREDUCE-5075. DistCp leaks input file handles since ThrottledInputStream + does not close the wrapped InputStream. (Chris Nauroth via szetszwo) + + MAPREDUCE-3872. Fix an event handling races in ContainerLauncherImpl. + (Robert Kanter via sseth) + + MAPREDUCE-5062. Fix MR AM to read max-retries from the RM. (Zhijie Shen via + vinodkv) + + MAPREDUCE-3829. [Gridmix] Gridmix should give better error message when + input data directory already exists and -generate opton is + given.(ravigummadi via tgraves) + + MAPREDUCE-2722. [Gridmix] Gridmix simulated job's map's hdfsBytesRead + counter is wrong when compressed input is used.(ravigummadi via tgraves) + + MAPREDUCE-3953. [Gridmix] Gridmix throws NPE and does not simulate a + job if the trace contains null taskStatus for a task. (ravigummadi via + tgraves) + + MAPREDUCE-4087. [Gridmix] GenerateDistCacheData job of Gridmix can + become slow in some cases (ravigummadi via tgraves). + + MAPREDUCE-5077. Remove mapreduce.util.ResourceCalculatorPlugin and related + code. (Karthik Kambatla via sseth) + + MAPREDUCE-4083. [Gridmix] NPE in cpu emulation. (amarrk via tgraves) + + MAPREDUCE-4100. [Gridmix] Bug fixed in compression emulation feature for + map only jobs. (amarrk via tgraves) + + MAPREDUCE-4356. [Rumen] Provide access to the method + ParsedTask.obtainTaskAttempts(). (ravigummadi via tgraves) + + MAPREDUCE-4149. [Rumen] Rumen fails to parse certain counter + strings. (ravigummadi via tgraves) + + MAPREDUCE-3757. [Rumen] Fixed Rumen Folder to adjust shuffleFinished and + sortFinished times when needed. (Ravi Gummadi via tgraves) + + MAPREDUCE-5138. Fix LocalDistributedCacheManager after YARN-112. (Omkar Vinit + Joshi via vinodkv) + + MAPREDUCE-5086. MR app master deletes staging dir when sent a reboot + command from the RM. (Jian He via jlowe) + + MAPREDUCE-5113. Streaming input/output types are ignored with java + mapper/reducer. (sandyr via tucu) + + MAPREDUCE-5098. Fix findbugs warnings in gridmix. (kkambatl via tucu) + + MAPREDUCE-5137. AM web UI: clicking on Map Task results in 500 error + (Thomas Graves via jlowe) + + MAPREDUCE-5136. TestJobImpl->testJobNoTasks fails with IBM JAVA (Amir + Sanjar via jlowe) + + MAPREDUCE-5139. Update MR AM to use the modified startContainer API after + YARN-486. (Xuan Gong via vinodkv) + + MAPREDUCE-5151. Update MR AM to use standard exit codes from the API after + YARN-444. (Sandy Ryza via vinodkv) + + MAPREDUCE-5140. MR part of YARN-514 (Zhijie Shen via bikas) + + MAPREDUCE-5128. mapred-default.xml is missing a bunch of history server + configs. (sandyr via tucu) + + MAPREDUCE-4898. FileOutputFormat.checkOutputSpecs and + FileOutputFormat.setOutputPath incompatible with MR1. (rkanter via tucu) + + MAPREDUCE-5078. TestMRAppMaster fails on Windows due to mismatched path + separators. (Chris Nauroth via sseth) + + MAPREDUCE-4932. mapreduce.job#getTaskCompletionEvents incompatible with + Hadoop 1. (rkanter via tucu) + + MAPREDUCE-5163. Update MR App to not use API utility methods for collections + after YARN-441. (Xuan Gong via vinodkv) + + MAPREDUCE-5066. Added a timeout for the job.end.notification.url. (Ivan + Mitic via acmurthy) + + MAPREDUCE-5146. application classloader may be used too early to load + classes. (Sangjin Lee via tomwhite) + + MAPREDUCE-4737. Ensure that mapreduce APIs are semantically consistent + with mapred API w.r.t Mapper.cleanup and Reducer.cleanup; in the sense that + cleanup is now called even if there is an error. The old mapred API + already ensures that Mapper.close and Reducer.close are invoked during + error handling. Note that it is an incompatible change, however end-users + can override Mapper.run and Reducer.run to get the old (inconsistent) + behaviour. (acmurthy) + + MAPREDUCE-5166. Fix ConcurrentModificationException due to insufficient + synchronization on updates to task Counters. (Sandy Ryza via acmurthy) + + MAPREDUCE-5181. RMCommunicator should not use AMToken from the env. + (Vinod Kumar Vavilapalli via sseth) + + MAPREDUCE-5178. Update MR App to set progress in ApplicationReport after + YARN-577. (Hitesh Shah via vinodkv) + + MAPREDUCE-5167. Update MR App after YARN-562 to use the new builder API + for the container. (Jian He via vinodkv) + + MAPREDUCE-5179. Fix unit test in TestHSWebServices which fails when + versionInfo has parantheses like when running on a git checkout. (Hitesh Shah + via vinodkv) + + MAPREDUCE-5193. A few MR tests use block sizes which are smaller than the + default minimum block size. (Andrew Wang via atm) + + MAPREDUCE-5205. Fixed MR App to load tokens correctly. (vinodkv) + + MAPREDUCE-5204. Handling YarnRemoteException separately from IOException in + MR app after YARN-629. (Xuan Gong via vinodkv) + + MAPREDUCE-5209. Fix units in a ShuffleScheduler log message. + (Tsuyoshi OZAWA via cdouglas) + + MAPREDUCE-5212. Handling YarnRemoteException separately from IOException in + MR App's use of ClientRMProtocol after YARN-631. (Xuan Gong via vinodkv) + + MAPREDUCE-5226. Handling YarnRemoteException separately from IOException in + MR App's use of AMRMProtocol after YARN-630. (Xuan Gong via vinodkv) + + MAPREDUCE-4942. mapreduce.Job has a bunch of methods that throw + InterruptedException so its incompatible with MR1. (rkanter via tucu) + + MAPREDUCE-5239. Updated MR App to reflect YarnRemoteException changes after + YARN-634. (Siddharth Seth via vinodkv) + + MAPREDUCE-5208. Modified ShuffleHandler to use SecureIOUtils for reading + local files. (Omkar Vinit Joshi via vinodkv) + + MAPREDUCE-5220. Setter methods in TaskCompletionEvent are public in MR1 and + protected in MR2. (sandyr via tucu) + + MAPREDUCE-5240. Fix a bug in MRAppMaster because of which OutputCommitter + could not access credentials set by the user. (vinodkv) + + MAPREDUCE-5244. Two functions changed their visibility in JobStatus. + (zjshen via tucu) + + MAPREDUCE-4927. Historyserver 500 error due to NPE when accessing specific + counters page for failed job. (Ashwin Shankar via jlowe) + + MAPREDUCE-5257. Fix issues in TestContainerLauncherImpl after YARN-617. + (Omkar Vinit Joshi via vinodkv) + + MAPREDUCE-5282. Updating MR App to use immutable ApplicationID after + YARN-716. (Siddharth Seth via vinodkv) + + MAPREDUCE-5286. Change MapReduce to use ContainerTokenIdentifier instead + of the entire Container in the startContainer call - YARN-684. + (Vinod Kumar Vavilapalli via sseth) + + MAPREDUCE-5299. Fix backward incompatibility for TaskCompletionEvent by + adding back setTaskID. (Zhijie Shen via acmurthy) + + MAPREDUCE-5296. Fix backward incompatibility for JobControl by adding the + omitted addJob. (Zhijie Shen via acmurthy) + + MAPREDUCE-5245. Added back constants to JobConf to fix incompatibilities. + (Zhijie Shen via acmurthy) + + MAPREDUCE-5297. Updated MR App since BuilderUtils is no longer public + after YARN-748. (Jian He via vinodkv) + + MAPREDUCE-5301. Updated MR code to work with YARN-635 changes of renaming + YarnRemoteException to YarnException. (Siddharth Seth via vinodkv) + + MAPREDUCE-5308. Shuffling to memory can get out-of-sync when fetching + multiple compressed map outputs (Nathan Roberts via jlowe) + + MAPREDUCE-5315. DistCp reports success even on failure. (mithun and jlowe + via daryn) + + MAPREDUCE-5259. TestTaskLog fails on Windows because of path separators + missmatch. (Ivan Mitic via cnauroth) + + MAPREDUCE-4019. -list-attempt-ids is not working (Ashwin Shankar, + Devaraj K, and B Anil Kumar via jlowe) + + MAPREDUCE-5334. Fix failing unit tests - TestContainerLauncher, + TestContainerLauncherImpl. (Vinod Kumar Vavilapalli via sseth) + + MAPREDUCE-5325. MR changes related to YARN-727. ClientRMProtocol.getAllApplications + should accept ApplicationType as a parameter. (Xuan Gong via hitesh) + + MAPREDUCE-5291. Change MR App to use updated property names in + container-log4j.properties. (Zhijie Shen via sseth) + + MAPREDUCE-5303. Changed MR app after moving ProtoBase to package impl.pb via + YARN-724. (Jian He via vinodkv) + + MAPREDUCE-5312. TestRMNMInfo is failing. (sandyr via tucu) + + MAPREDUCE-5304. mapreduce.Job killTask/failTask/getTaskCompletionEvents + methods have incompatible signature changes. (kkambatl via tucu) + + MAPREDUCE-5298. Moved MapReduce services to YARN-530 stricter lifecycle. + (Steve Loughran via vinodkv) + + MAPREDUCE-5319. Set user.name in job.xml. (Xuan Gong via acmurthy) + + MAPREDUCE-5310. MRAM should not normalize allocation request capabilities. + (tucu) + + MAPREDUCE-5213. Re-assess TokenCache methods marked @Private. + (kkambatl via tucu) + + MAPREDUCE-5412. Update MR app to use multiple containers API of + ContainerManager after YARN-926. (Jian He via vinodkv) + + MAPREDUCE-5421. Fixed TestNonExistentJob failure after YARN-873. (Junping Du + via vinodkv) + + MAPREDUCE-5419. TestSlive is getting FileNotFound Exception (Robert Parker + via jlowe) + + MAPREDUCE-5399. Unnecessary Configuration instantiation in IFileInputStream + slows down merge. (Stanislav Barton via Sandy Ryza) + + BREAKDOWN OF HADOOP-8562 SUBTASKS + + MAPREDUCE-4739. Some MapReduce tests fail to find winutils. + (Chris Nauroth via suresh) + + MAPREDUCE-4780. MapReduce distribution build fails on Windows. + (Chris Nauroth via suresh) + + MAPREDUCE-4790. MapReduce build script would be more readable using abspath. + (Chris Nauroth via suresh) + + MAPREDUCE-4869. Fix TestMapReduceChildJVM. (Chris Nauroth via acmurthy) + + MAPREDUCE-4870. Fix TestMRJobsWithHistoryService. (Chris Nauroth via acmurthy) + + MAPREDUCE-4983. Fixed various platform specific assumptions in various tests, + so that they can pass on Windows too. (Chris Nauroth via vinodkv) + + HADOOP-9372. Fix bad timeout annotations on tests. + (Arpit Agarwal via suresh) + + MAPREDUCE-4885. Streaming tests have multiple failures on Windows. (Chris + Nauroth via bikas) + + MAPREDUCE-5177. Use common utils FileUtil#setReadable/Writable/Executable & + FileUtil#canRead/Write/Execute. (Ivan Mitic via suresh) + + MAPREDUCE-5349. TestClusterMapReduceTestCase and TestJobName fail on Windows + in branch-2. (Chuan Liu via cnauroth) + + MAPREDUCE-5355. MiniMRYarnCluster with localFs does not work on Windows. + (Chuan Liu via cnauroth) + + MAPREDUCE-5359. JobHistory should not use File.separator to match timestamp + in path. (Chuan Liu via cnauroth) + + MAPREDUCE-5357. Job staging directory owner checking could fail on Windows. + (Chuan Liu via cnauroth) + + MAPREDUCE-5360. TestMRJobClient fails on Windows due to path format. + (Chuan Liu via cnauroth) + + MAPREDUCE-5366. TestMRAsyncDiskService fails on Windows. (Chuan Liu via + cnauroth) + + MAPREDUCE-5187. Create mapreduce command scripts on Windows. (Chuan Liu via + cnauroth) + + MAPREDUCE-4374. Fix child task environment variable config and add support + for Windows. (Chuan Liu via cnauroth) + +Release 2.0.5-alpha - 06/06/2013 + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + OPTIMIZATIONS + + BUG FIXES + + MAPREDUCE-5240 inside of FileOutputCommitter the initialized Credentials cache + appears to be empty. (vinodkv) + +Release 2.0.4-alpha - 2013-04-25 + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + OPTIMIZATIONS + + BUG FIXES + + MAPREDUCE-5006. Fix failing streaming tests due to MAPREDUCE-4994. + (Sandy Ryza via tomwhite) + + MAPREDUCE-5088. MR Client gets an renewer token exception while Oozie is + submitting a job (Daryn Sharp via cos) + + MAPREDUCE-5117. Changed MRClientProtocolPBClientImpl to be closeable and thus + fix failures in renewal of HistoryServer's delegations tokens. (Siddharth + Seth via vinodkv) + + MAPREDUCE-5083. MiniMRCluster should use a random component when creating an + actual cluster (Siddharth Seth via hitesh) + + MAPREDUCE-5094. Disabled memory monitoring by default in MiniMRYarnCluster + to avoid some downstream tests failing. (Siddharth Seth via vinodkv) + +Release 2.0.3-alpha - 2013-02-06 + + INCOMPATIBLE CHANGES + + MAPREDUCE-4123. Remove the 'mapred groups' command, which is no longer + supported. (Devaraj K via sseth) + + MAPREDUCE-4938. Use token request messages defined in hadoop common. + (suresh) + + NEW FEATURES + + MAPREDUCE-4520. Added support for MapReduce applications to request for + CPU cores along-with memory post YARN-2. (acmurthy) + + MAPREDUCE-4810. Added new admin command options for MR AM. (Jerry Chen via + vinodkv) + + MAPREDUCE-4049. Experimental api to allow for alternate shuffle plugins. + (Avner BenHanoch via acmurthy) + + MAPREDUCE-4807. Allow MapOutputBuffer to be pluggable. (masokan via tucu) + + MAPREDUCE-4808. Refactor MapOutput and MergeManager to facilitate reuse + by Shuffle implementations. (masokan via tucu) + + IMPROVEMENTS + + MAPREDUCE-3678. The Map tasks logs should have the value of input + split it processed. (harsh) + + MAPREDUCE-4616. Improve javadoc for MultipleOutputs. (Tony Burton via + acmurthy) + + HADOOP-8911. CRLF characters in source and text files. + (Raja Aluri via suresh) + + MAPREDUCE-4703. Add the ability to start the MiniMRClientCluster using + the configurations used before it is being stopped. (ahmed.radwan via tucu) + + MAPREDUCE-4845. ClusterStatus.getMaxMemory() and getUsedMemory() exist in + MR1 but not MR2. (Sandy Ryza via tomwhite) + + MAPREDUCE-4899. Implemented a MR specific plugin for tracking finished + applications that YARN's ResourceManager doesn't keep track off anymore + (Derek Dagit via vinodkv) + + MAPREDUCE-4920. Use security token protobuf definition from hadoop common. + (Suresh Srinivas via vinodkv) + + MAPREDUCE-4907. TrackerDistributedCacheManager issues too many getFileStatus + calls. (sandyr via tucu) + + MAPREDUCE-4949. Enable multiple pi jobs to run in parallel. (sandyr via tucu) + + MAPREDUCE-4809. Change visibility of classes for pluggable sort changes. + (masokan via tucu) + + MAPREDUCE-4838. Add additional fields like Locality, Avataar to the + JobHistory logs. (Zhijie Shen via sseth) + + MAPREDUCE-4971. Minor extensibility enhancements to Counters & + FileOutputFormat. (Arun C Murthy via sseth) + + MAPREDUCE-4977. Documentation for pluggable shuffle and pluggable sort. + (tucu) + + OPTIMIZATIONS + + MAPREDUCE-4893. Fixed MR ApplicationMaster to do optimal assignment of + containers to get maximum locality. (Bikas Saha via vinodkv) + + BUG FIXES + + MAPREDUCE-4272. SortedRanges.Range#compareTo is not spec compliant. + (Yu Gao via llu) + + MAPREDUCE-4607. Race condition in ReduceTask completion can result in Task + being incorrectly failed. (Bikas Saha via tomwhite) + + MAPREDUCE-4646. Fixed MR framework to send diagnostic information correctly + to clients in case of failed jobs also. (Jason Lowe via vinodkv) + + MAPREDUCE-4674. Hadoop examples secondarysort has a typo + "secondarysrot" in the usage. (Robert Justice via eli) + + MAPREDUCE-4681. Fix unit tests broken by HDFS-3910. (acmurthy) + + MAPREDUCE-4712. mr-jobhistory-daemon.sh doesn't accept --config + (Vinod Kumar Vavilapalli via tgraves) + + MAPREDUCE-4654. TestDistCp is ignored. (Sandy Ryza via tomwhite) + + MAPREDUCE-4637. Handle TaskAttempt diagnostic updates while in the NEW and + UNASSIGNED states. (Mayank Bansal via sseth) + + MAPREDUCE-1806. CombineFileInputFormat does not work with paths not on default FS. (Gera Shegalov via tucu) + + MAPREDUCE-4777. In TestIFile, testIFileReaderWithCodec relies on + testIFileWriterWithCodec. (Sandy Ryza via tomwhite) + + MAPREDUCE-4800. Cleanup o.a.h.mapred.MapTaskStatus - remove unused + code. (kkambatl via tucu) + + MAPREDUCE-4861. Cleanup: Remove unused mapreduce.security.token.DelegationTokenRenewal. + (kkambatl via tucu) + + MAPREDUCE-4856. TestJobOutputCommitter uses same directory as + TestJobCleanup. (Sandy Ryza via tomwhite) + + MAPREDUCE-4895. Fix compilation failure of org.apache.hadoop.mapred. + gridmix.TestResourceUsageEmulators (Dennis Y via tgraves) + + MAPREDUCE-4278. Cannot run two local jobs in parallel from the same + gateway. (Sandy Ryza via tomwhite) + + MAPREDUCE-1700. User supplied dependencies may conflict with MapReduce + system JARs. (tomwhite) + + MAPREDUCE-4936. JobImpl uber checks for cpu are wrong (Arun C Murthy via + jlowe) + + MAPREDUCE-4924. flakey test: org.apache.hadoop.mapred.TestClusterMRNotification.testMR. + (rkanter via tucu) + + MAPREDUCE-4923. Add toString method to TaggedInputSplit. (sandyr via tucu) + + MAPREDUCE-4948. Fix a failing unit test TestYARNRunner.testHistoryServerToken. + (Junping Du via sseth) + + MAPREDUCE-4803. Remove duplicate copy of TestIndexCache. (Mariappan Asokan + via sseth) + + MAPREDUCE-2264. Job status exceeds 100% in some cases. + (devaraj.k and sandyr via tucu) + + MAPREDUCE-4969. TestKeyValueTextInputFormat test fails with Open JDK 7. + (Arpit Agarwal via suresh) + + MAPREDUCE-4884. Streaming tests fail to start MiniMRCluster due to missing + queue configuration. (Chris Nauroth via suresh) + + MAPREDUCE-4953. HadoopPipes misuses fprintf. (Andy Isaacson via atm) + +Release 2.0.2-alpha - 2012-09-07 + + INCOMPATIBLE CHANGES + + NEW FEATURES + + MAPREDUCE-987. Exposing MiniDFS and MiniMR clusters as a single process + command-line. (ahmed via tucu) + + MAPREDUCE-4417. add support for encrypted shuffle (tucu) + + MAPREDUCE-4355. Add RunningJob.getJobStatus() (kkambatl via tucu) + + MAPREDUCE-3451. Port Fair Scheduler to MR2 (pwendell via tucu) + + MAPREDUCE-4438. Add a simple, generic client to run 'easy' AMs in YARN. + (Bikas Saha via acmurthy) + + IMPROVEMENTS + + MAPREDUCE-4157. ResourceManager should not kill apps that are well behaved + (Jason Lowe via bobby) + + MAPREDUCE-4511. Add IFile readahead (ahmed via tucu) + + MAPREDUCE-4408. allow jobs to set a JAR that is in the distributed cached + (rkanter via tucu) + + MAPREDUCE-4440. Changed SchedulerApp and SchedulerNode to be a minimal + interface to allow schedulers to maintain their own. (acmurthy) + + MAPREDUCE-4146. Support limits on task status string length and number of + block locations in branch-2. (Ahmed Radwan via tomwhite) + + MAPREDUCE-3871. Allow symlinking in LocalJobRunner DistributedCache. + (tomwhite) + + MAPREDUCE-3921. MR AM should act on node health status changes. + (Bikas Saha via sseth) + + MAPREDUCE-4355. Add RunningJob.getJobStatus() (kkambatl via tucu) + + MAPREDUCE-4427. Added an 'unmanaged' mode for AMs so as to ease + development of new applications. (Bikas Saha via acmurthy) + + MAPREDUCE-3289. Make use of fadvise in the NM's shuffle handler. + (Todd Lipcon and Siddharth Seth via sseth) + + MAPREDUCE-4580. Change MapReduce to use the yarn-client module. + (Vinod Kumar Vavilapalli via sseth) + + MAPREDUCE-4579. Split TestTaskAttempt into two so as to pass tests on + jdk7. (Thomas Graves via vinodkv) + + MAPREDUCE-4638. MR AM supplies MapReduce jars in classpath rather than + rely on YARN. (acmurthy) + + BUG FIXES + + MAPREDUCE-4422. YARN_APPLICATION_CLASSPATH needs a documented default value in + YarnConfiguration. (ahmed via tucu) + + MAPREDUCE-4406. Users should be able to specify the MiniCluster ResourceManager + and JobHistoryServer ports. (ahmed via tucu) + + MAPREDUCE-4407. Add hadoop-yarn-server-tests-<version>-tests.jar to hadoop dist + package. (ahmed via tucu) + + MAPREDUCE-4465. Update description of yarn.nodemanager.address property. + (bowang via tucu) + + MAPREDUCE-4342. Distributed Cache gives inconsistent result if cache files + get deleted from tasktracker. (mayank_bansal via tucu) + + MAPREDUCE-4498. Remove hsqldb jar from Hadoop runtime classpath. (rkanter via tucu) + + MAPREDUCE-4494. TestFifoScheduler failing with Metrics source QueueMetrics,q0=default + already exists!. (ahmed.radwan via tucu) + + MAPREDUCE-4484. Incorrect IS_MINI_YARN_CLUSTER property name in YarnConfiguration. + (ahmed.radwan via tucu) + + MAPREDUCE-4562. Support for "FileSystemCounter" legacy counter group name + for compatibility reasons is creating incorrect counter name. + (Jarek Jarcec Cecho via tomwhite) + + MAPREDUCE-4068. Jars in lib subdirectory of the submittable JAR are not added to the + classpath (rkanter via tucu) + + MAPREDUCE-4577. HDFS-3672 broke + TestCombineFileInputFormat.testMissingBlocks() test (atm) + + MAPREDUCE-4470. Fix TestCombineFileInputFormat.testForEmptyFile (ikatsov via tucu) + + MAPREDUCE-4608. hadoop-mapreduce-client is missing some dependencies. + (tucu via tomwhite) + + MAPREDUCE-4610. Support deprecated mapreduce.job.counters.limit property in + MR2. (tomwhite) + + MAPREDUCE-4629. Remove JobHistory.DEBUG_MODE (Karthik Kambatla via bobby) + + MAPREDUCE-4642. MiniMRClientClusterFactory should not use job.setJar() (rkanter via tucu) + + MAPREDUCE-4148. MapReduce should not have a compile-time dependency on + HDFS. (tomwhite) + + MAPREDUCE-4250. hadoop-config.sh missing variable exports, causes Yarn + jobs to fail with ClassNotFoundException MRAppMaster. (phunt via tucu) + + MAPREDUCE-4002. MultiFileWordCount job fails if the input path is not + from default file system. (Bhallamudi Venkata Siva Kamesh via todd) + + MAPREDUCE-4274 MapOutputBuffer should use native byte order for kvmeta. + (todd via bobby) + + MAPREDUCE-4262. NM gives wrong log message saying "Connected to + ResourceManager" before trying to connect. (Devaraj K via tgraves) + + MAPREDUCE-4276. Allow setting yarn.nodemanager.delete.debug-delay-sec + property to "-1" for easier container debugging. (ahmed via tucu) + + MAPREDUCE-4224. TestFifoScheduler throws + org.apache.hadoop.metrics2.MetricsException (Devaraj K via tgraves) + + MAPREDUCE-3493. Add the default mapreduce.shuffle.port property + to mapred-default.xml (Madhukara Phatak via harsh) + + MAPREDUCE-4307. TeraInputFormat calls FileSystem.getDefaultBlockSize() + without a Path - Failure when using ViewFileSystem. (Ahmed Radwan via eli) + + MAPREDUCE-4313. TestTokenCache doesn't compile due + TokenCache.getDelegationToken compilation error (bobby) + + MAPREDUCE-3873. Fixed NodeManagers' decommissioning at RM to accept IP + addresses also. (xieguiming via vinodkv) + + MAPREDUCE-4306. Fix distributed shell to work with users other than the one + running the daemons. (Ahmed Radwan via sseth) + + MAPREDUCE-4031. Prevent a Node Manager hang during shutdown. + (Devaraj K via sseth) + + MAPREDUCE-4336. Distributed Shell fails when used with the CapacityScheduler + (ahmed via tucu) + + MAPREDUCE-4290. Fix Yarn Applicaiton Status to MR JobState conversion. + (Devaraj K via sseth) + + MAPREDUCE-2289. Permissions race can make getStagingDir fail on local filesystem + (ahmed via tucu) + + MAPREDUCE-4372. Deadlock in Resource Manager (Devaraj K via bobby) + + MAPREDUCE-4376. TestClusterMRNotification times out (Kihwal Lee via bobby) + + MAPREDUCE-4383. HadoopPipes.cc needs to include unistd.h. + (Andy Isaacson via eli) + + MAPREDUCE-2739. Update installation docs (remove YarnClientFactory) (bowang via tucu) + + MAPREDUCE-3993. Graceful handling of codec errors during decompression + (kkambatl via tucu) + + MAPREDUCE-4416. Some tests fail if Clover is enabled (Kihwal Lee via bobby) + + MAPREDUCE-4441. Fix build issue caused by MR-3451 (kkambatl via tucu) + + HADOOP-8499. Lower min.user.id to 500 for the tests. + (Colin Patrick McCabe via eli) + + MAPREDUCE-4395. Possible NPE at ClientDistributedCacheManager + #determineTimestamps (Bhallamudi via bobby) + + MAPREDUCE-4380. Empty Userlogs directory is getting created under logs + directory (Devaraj K via bobby) + + MAPREDUCE-4649. Ensure MapReduce JobHistory Daemon doens't assume + HADOOP_YARN_HOME and HADOOP_MAPRED_HOME are the same. (vinodkv via + acmurthy) + +Release 2.0.0-alpha - 05-23-2012 + + INCOMPATIBLE CHANGES + + MAPREDUCE-3545. Remove Avro RPC. (suresh) + + NEW FEATURES + + IMPROVEMENTS + + MAPREDUCE-2887. Due to HADOOP-7524, change RPC to allow multiple protocols + including multuple versions of the same protocol (Sanjay Radia) + + MAPREDUCE-2934. MR portion of HADOOP-7607 - Simplify the RPC proxy cleanup + process (atm) + + HADOOP-7862. MR changes to work with HADOOP 7862: Move the support for + multiple protocols to lower layer so that Writable, PB and Avro can all + use it (Sanjay Radia) + + MAPREDUCE-3909 Javadoc the Service interfaces (stevel) + + MAPREDUCE-3885. Avoid an unnecessary copy for all requests/responses in + MRs ProtoOverHadoopRpcEngine. (Devaraj Das via sseth) + + MAPREDUCE-3935. Annotate Counters.Counter and Counters.Group as @Public. + (tomwhite) + + MAPREDUCE-3991. Streaming FAQ has some wrong instructions about input files + splitting. (harsh) + + MAPREDUCE-3773. Add queue metrics with buckets for job run times. (omalley + via acmurthy) + + MAPREDUCE-3970. Add ServiceOperations class to aid working with Services + (stevel) + + MAPREDUCE-3353. Add a channel between RM and AM to get information on + nodes. (Bikas Saha via acmurthy) + + MAPREDUCE-3955. Change MR to use ProtobufRpcEngine from hadoop-common + instead of ProtoOverHadoopRpcEngine. (Jitendra Nath Pandey via sseth) + + MAPREDUCE-4103. Fix HA docs for changes to shell command fencer args (todd) + + MAPREDUCE-4093. Improve RM WebApp start up when proxy address is not set + (Devaraj K vai bobby) + + MAPREDUCE-4138. Reduce memory usage of counters due to non-static nested + classes. (tomwhite) + + MAPREDUCE-3883. Document yarn.nodemanager.delete.debug-delay-sec + configuration property (Eugene Koontz via tgraves) + + MAPREDUCE-4219. make default container-executor.conf.dir be a path + relative to the container-executor binary. (rvs via tucu) + + MAPREDUCE-4205. retrofit all JVM shutdown hooks to use ShutdownHookManager + (tucu) + + HADOOP-8285 MR changes for Use ProtoBuf for RpcPayLoadHeader (sanjay radia) + + MAPREDUCE-2220. Fix new API FileOutputFormat-related typos in + mapred-default.xml (Rui Kubo via harsh) + + MAPREDUCE-3907. Document entries mapred-default.xml for the + jobhistory server. (Eugene Koontz via harsh) + + MAPREDUCE-3906. Fix inconsistency in documentation regarding + mapreduce.jobhistory.principal. (Eugene Koontz via harsh) + + MAPREDUCE-4432. Confusing warning message when GenericOptionsParser + is not used. (Gabriel Reid via harsh) + + OPTIMIZATIONS + + BUG FIXES + + MAPREDUCE-3740. Fixed broken mapreduce compilation after the patch for + HADOOP-7965. (Devaraj K via vinodkv) + + MAPREDUCE-3818. Fixed broken compilation in TestSubmitJob after the patch + for HDFS-2895. (Suresh Srinivas via vinodkv) + + MAPREDUCE-2942. TestNMAuditLogger.testNMAuditLoggerWithIP failing (Thomas + Graves via mahadev) + + MAPREDUCE-3933. Failures because MALLOC_ARENA_MAX is not set (ahmed via tucu) + + MAPREDUCE-3728. ShuffleHandler can't access results when configured in a + secure mode (ahmed via tucu) + + MAPREDUCE-3952. In MR2, when Total input paths to process == 1, + CombinefileInputFormat.getSplits() returns 0 split. (zhenxiao via tucu) + + MAPREDUCE-3578. Starting nodemanager as root gives "Unknown -jvm option" + (tomwhite) + + MAPREDUCE-3348. Fixed a bug in MR client to redirect to JobHistoryServer + correctly when RM forgets the app. (Devaraj K via vinodkv) + + MAPREDUCE-3974. TestSubmitJob in MR1 tests doesn't compile after HDFS-162 + merge. (atm) + + MAPREDUCE-4007. JobClient getJob(JobID) should return NULL if the job + does not exist (for backwards compatibility) (tucu) + + MAPREDUCE-3431 NPE in Resource Manager shutdown. (stevel) + + MAPREDUCE-4010. TestWritableJobConf fails on trunk (tucu via bobby) + + MAPREDUCE-3992. Reduce fetcher doesn't verify HTTP status code of response + (todd) + + MAPREDUCE-4066. Use default value when fetching MR_AM_STAGING_DIR + (xieguiming via harsh) + + MAPREDUCE-3377. Added a unit test to ensure OutputCommitter.checkOutputSpecs + is called prior to copying job.xml. (Jane Chen via acmurthy) + + MAPREDUCE-4081. TestMROutputFormat.java does not compile (Jason Lowe via + bobby) + + MAPREDUCE-4082. hadoop-mapreduce-client-app's mrapp-generated-classpath + file should not be in the module JAR (tucu) + + MAPREDUCE-3916. various issues with running yarn proxyserver (devaraj via tucu) + + MAPREDUCE-4091. tools testcases failing because of MAPREDUCE-4082 (tucu) + + MAPREDUCE-4098. TestMRApps testSetClasspath fails (tucu) + + MAPREDUCE-4097. tools testcases fail because missing mrapp-generated-classpath + file in classpath (rvs via tucu) + + MAPREDUCE-4113. Fix tests org.apache.hadoop.mapred.TestClusterMRNotification + (Devaraj K via bobby) + + MAPREDUCE-4112. Fix tests org.apache.hadoop.mapred.TestClusterMapReduceTestCase + (Devaraj K via bobby) + + MAPREDUCE-4111. Fix tests in org.apache.hadoop.mapred.TestJobName (Devaraj + K via bobby) + + MAPREDUCE-4110. Fix tests in org.apache.hadoop.mapred.TestMiniMRClasspath & + org.apache.hadoop.mapred.TestMiniMRWithDFSWithDistinctUsers (Devaraj K via + bobby) + + MAPREDUCE-4105. Yarn RackResolver ignores rack configurations. + (Ahmed Radwan via tomwhite) + + MAPREDUCE-3869. Fix classpath for DistributedShell application. (Devaraj K + via sseth) + + MAPREDUCE-4057. Update RAID for the HA and fsdataset changes. (Devaraj K + via szetszwo) + + MAPREDUCE-4076. Stream job fails with ZipException when use yarn jar + command (Devaraj K via bobby) + + MAPREDUCE-4108. Fix tests in org.apache.hadoop.util.TestRunJar + (Devaraj K via tgraves) + + MAPREDUCE-4107. Fix tests in org.apache.hadoop.ipc.TestSocketFactory + (Devaraj K via tgraves) + + MAPREDUCE-4147. YARN should not have a compile-time dependency on HDFS. + (tomwhite) + + MAPREDUCE-4008. ResourceManager throws MetricsException on start up + saying QueueMetrics MBean already exists (Devaraj K via tgraves) + + MAPREDUCE-3867. MiniMRYarn/MiniYarn uses fixed ports (tucu) + + MAPREDUCE-4141. clover integration broken, also mapreduce poms are + pulling in clover as a dependency. (phunt via tucu) + + MAPREDUCE-4193. broken doc link for yarn-default.xml in site.xml. + (phunt via tomwhite) + + MAPREDUCE-4202. TestYarnClientProtocolProvider is broken (Daryn Sharp via + bobby) + + MAPREDUCE-3173. MRV2 UI doesn't work properly without internet (Devaraj K + via bobby) + + MAPREDUCE-3958. RM: Remove RMNodeState and replace it with NodeState + (Bikas Saha via bobby) + + MAPREDUCE-4231. Update RAID to use the new BlockCollection interface. + (szetszwo) + + MAPREDUCE-4483. 2.0 build does not work (John George via bobby) + + MAPREDUCE-4444. nodemanager fails to start when one of the local-dirs is + bad (Jason Lowe via bobby) + +Release 0.23.9 - UNRELEASED + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + OPTIMIZATIONS + + MAPREDUCE-5268. Improve history server startup performance (Karthik + Kambatla via jlowe) + + BUG FIXES + + MAPREDUCE-5308. Shuffling to memory can get out-of-sync when fetching + multiple compressed map outputs (Nathan Roberts via jlowe) + + MAPREDUCE-5315. DistCp reports success even on failure. (mithun and jlowe + via daryn) + + MAPREDUCE-4019. -list-attempt-ids is not working (Ashwin Shankar, + Devaraj K, and B Anil Kumar via jlowe) + +Release 0.23.8 - 2013-06-05 + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + MAPREDUCE-5065. DistCp should skip checksum comparisons if block-sizes + are different on source/target (Mithun Radhakrishnan via kihwal) + + OPTIMIZATIONS + + BUG FIXES + + MAPREDUCE-5015. Coverage fix for org.apache.hadoop.mapreduce.tools.CLI + (Aleksey Gorshkov via tgraves) + + MAPREDUCE-5147. Maven build should create + hadoop-mapreduce-client-app-VERSION.jar directly (Robert Parker via tgraves) + + MAPREDUCE-4927. Historyserver 500 error due to NPE when accessing specific + counters page for failed job. (Ashwin Shankar via jlowe) + +Release 0.23.7 - 2013-04-18 + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + MAPREDUCE-4905. test org.apache.hadoop.mapred.pipes + (Aleksey Gorshkov via bobby) + + MAPREDUCE-4989. JSONify DataTables input data for Attempts page (Ravi + Prakash via jlowe) + + MAPREDUCE-5027. Shuffle does not limit number of outstanding connections + (Robert Parker via jeagles) + + MAPREDUCE-4972. Coverage fixing for org.apache.hadoop.mapreduce.jobhistory + (Aleksey Gorshkov via bobby) + + OPTIMIZATIONS + + MAPREDUCE-4946. Fix a performance problem for large jobs by reducing the + number of map completion event type conversions. (Jason Lowe via sseth) + + MAPREDUCE-4822. Unnecessary conversions in History Events. (Chu Tong via + jlowe) + + BUG FIXES + + MAPREDUCE-4458. Warn if java.library.path is used for AM or Task + (Robert Parker via jeagles) + + MAPREDUCE-4992. AM hangs in RecoveryService when recovering tasks with + speculative attempts (Robert Parker via jlowe) + + MAPREDUCE-5009. Killing the Task Attempt slated for commit does not clear + the value from the Task commitAttempt member (Robert Parker via jeagles) + + MAPREDUCE-4871. AM uses mapreduce.jobtracker.split.metainfo.maxsize but + mapred-default has mapreduce.job.split.metainfo.maxsize (Jason Lowe via + jeagles) + + MAPREDUCE-4794. DefaultSpeculator generates error messages on normal + shutdown (Jason Lowe via jeagles) + + MAPREDUCE-5043. Fetch failure processing can cause AM event queue to + backup and eventually OOM (Jason Lowe via bobby) + + MAPREDUCE-5023. History Server Web Services missing Job Counters (Ravi + Prakash via tgraves) + + MAPREDUCE-5060. Fetch failures that time out only count against the first + map task (Robert Joseph Evans via jlowe) + + MAPREDUCE-5042. Reducer unable to fetch for a map task that was recovered + (Jason Lowe via bobby) + + MAPREDUCE-5053. java.lang.InternalError from decompression codec cause + reducer to fail (Robert Parker via jeagles) + + MAPREDUCE-4991. coverage for gridmix (Aleksey Gorshkov via tgraves) + + MAPREDUCE-5007. fix coverage org.apache.hadoop.mapreduce.v2.hs (Aleksey + Gorshkov via tgraves) + + MAPREDUCE-5137. AM web UI: clicking on Map Task results in 500 error + (Thomas Graves via jlowe) + +Release 0.23.6 - 2013-02-06 + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + MAPREDUCE-4811. JobHistoryServer should show when it was started in WebUI + About page (Ravi Prakash via jlowe) + + OPTIMIZATIONS + + BUG FIXES + + MAPREDUCE-4802. Takes a long time to load the task list on the AM for + large jobs (Ravi Prakash via bobby) + + MAPREDUCE-4764. repair TestBinaryTokenFile (Ivan A. Veselovsky via bobby) + + MAPREDUCE-4825. JobImpl.finished doesn't expect ERROR as a final job state + (jlowe via bobby) + + MAPREDUCE-4817. Hardcoded task ping timeout kills tasks localizing large + amounts of data (tgraves) + + MAPREDUCE-4836. Elapsed time for running tasks on AM web UI tasks page is 0 + (Ravi Prakash via jeagles) + + MAPREDUCE-4842. Shuffle race can hang reducer (Mariappan Asokan via jlowe) + + MAPREDUCE-4833. Task can get stuck in FAIL_CONTAINER_CLEANUP (Robert + Parker via jlowe) + + MAPREDUCE-4793. Problem with adding resources when using both -files and + -file to hadoop streaming (jlowe) + + MAPREDUCE-4890. Invalid TaskImpl state transitions when task fails while + speculating (jlowe) + + MAPREDUCE-4902. Fix typo "receievd" should be "received" in log output + (Albert Chu via jlowe) + + MAPREDUCE-4813. AM timing out during job commit (jlowe via bobby) + + MAPREDUCE-4279. getClusterStatus() fails with null pointer exception when + running jobs in local mode (Devaraj K via bobby) + + MAPREDUCE-4832. MR AM can get in a split brain situation (jlowe) + + MAPREDUCE-4894. Renewal / cancellation of JobHistory tokens (Siddharth + Seth via tgraves) + + MAPREDUCE-4819. AM can rerun job after reporting final job status to the + client (bobby and Bikas Saha via bobby) + + MAPREDUCE-4913. TestMRAppMaster#testMRAppMasterMissingStaging occasionally + exits (Jason Lowe via tgraves) + + MAPREDUCE-4848. TaskAttemptContext cast error during AM recovery (Jerry + Chen via jlowe) + + MAPREDUCE-4921. JobClient should acquire HS token with RM principal + (daryn via bobby) + + MAPREDUCE-4934. Maven RAT plugin is not checking all source files (tgraves) + + MAPREDUCE-4678. Running the Pentomino example with defaults throws + java.lang.NegativeArraySizeException (Chris McConnell via harsh) + + MAPREDUCE-4925. The pentomino option parser may be buggy. + (Karthik Kambatla via harsh) + +Release 0.23.5 - 2012-11-28 + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + MAPREDUCE-4596. Split StateMachine state from states seen by MRClientProtocol + for Job, Task and TaskAttempt. (Siddarth Seth via vinodkv) + + MAPREDUCE-4752. Reduce MR AM memory usage through String Interning (Robert + Evans via tgraves) + + MAPREDUCE-4266. remove Ant remnants from MR (tgraves via bobby) + + MAPREDUCE-4666. JVM metrics for history server (jlowe via jeagles) + + OPTIMIZATIONS + + MAPREDUCE-4720. Browser thinks History Server main page JS is taking too + long (Ravi Prakash via bobby) + + BUG FIXES + + MAPREDUCE-4554. Job Credentials are not transmitted if security is turned + off (Benoy Antony via bobby) + + MAPREDUCE-4705. Fix a bug in job history lookup, which makes older jobs + inaccessible despite the presence of a valid history file. (Jason Lowe + via sseth) + + MAPREDUCE-4521. mapreduce.user.classpath.first incompatibility with 0.20/1.x + (Ravi Prakash via bobby) + + MAPREDUCE-4721. Task startup time in JHS is same as job startup time. + (Ravi Prakash via bobby) + + MAPREDUCE-4479. Fix parameter order in assertEquals() in + TestCombineInputFileFormat.java (Mariappan Asokan via bobby) + + MAPREDUCE-4733. Reducer can fail to make progress during shuffle if too many + reducers complete consecutively. (Jason Lowe via vinodkv) + + MAPREDUCE-4740. only .jars can be added to the Distributed Cache + classpath. (Robert Joseph Evans via jlowe) + + MAPREDUCE-4229. Intern counter names in the JT (Miomir Boljanovic and bobby via daryn) + + MAPREDUCE-4741. WARN and ERROR messages logged during normal AM shutdown. + (Vinod Kumar Vavilapalli via jlowe) + + MAPREDUCE-4730. Fix Reducer's EventFetcher to scale the map-completion + requests slowly to avoid HADOOP-8942. (Jason Lowe via vinodkv) + + MAPREDUCE-4748. Invalid event: T_ATTEMPT_SUCCEEDED at SUCCEEDED. (jlowe) + + MAPREDUCE-4724. job history web ui applications page should be sorted to + display last app first (tgraves via bobby) + + MAPREDUCE-4746. The MR Application Master does not have a config to set + environment variables (Rob Parker via bobby) + + MAPREDUCE-4729. job history UI not showing all job attempts. (Vinod + Kumar Vavilapalli via jlowe) + + MAPREDUCE-4763 repair test TestUmbilicalProtocolWithJobToken (Ivan A. + Veselovsky via bobby) + + MAPREDUCE-4771. KeyFieldBasedPartitioner not partitioning properly when + configured (jlowe via bobby) + + MAPREDUCE-4772. Fetch failures can take way too long for a map to be + restarted (bobby) + + MAPREDUCE-4782. NLineInputFormat skips first line of last InputSplit + (Mark Fuhs via bobby) + + MAPREDUCE-4774. JobImpl does not handle asynchronous task events in FAILED + state (jlowe via bobby) + + MAPREDUCE-4751. AM stuck in KILL_WAIT for days (vinodkv via bobby) + + MAPREDUCE-4787. TestJobMonitorAndPrint is broken (Rob Parker via bobby) + + MAPREDUCE-4425. Speculation + Fetch failures can lead to a hung job (jlowe + via bobby) + + MAPREDUCE-4786. Job End Notification retry interval is 5 milliseconds by + default (Ravi Prakash via bobby) + + MAPREDUCE-4517. Too many INFO messages written out during AM to RM heartbeat + (Jason Lowe via tgraves) + + MAPREDUCE-4797. LocalContainerAllocator can loop forever trying to contact + the RM (jlowe via bobby) + + MAPREDUCE-4801. ShuffleHandler can generate large logs due to prematurely + closed channels (jlowe via bobby) + +Release 0.23.4 + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + MAPREDUCE-2786. Add compression option for TestDFSIO. + (Plamen Jeliazkov via shv) + + MAPREDUCE-4645. Provide a random seed to Slive to make the sequence + of file names deterministic. (Ravi Prakash via shv) + + MAPREDUCE-4651. Benchmarking random reads with DFSIO. (shv) + + OPTIMIZATIONS + + BUG FIXES + + MAPREDUCE-4647. We should only unjar jobjar if there is a lib directory + in it. (Robert Evans via tgraves) + + MAPREDUCE-4691. Historyserver can report "Unknown job" after RM says job + has completed (Robert Joseph Evans via jlowe) + + MAPREDUCE-4689. JobClient.getMapTaskReports on failed job results in NPE + (jlowe via bobby) + +Release 0.23.3 + + INCOMPATIBLE CHANGES + + MAPREDUCE-4072. User set java.library.path seems to overwrite default + creating problems native lib loading (Anupam Seth via bobby) + + MAPREDUCE-3812. Lower default allocation sizes, fix allocation + configurations and document them (Harsh J via bobby) + + NEW FEATURES + + IMPROVEMENTS + + MAPREDUCE-4059. The history server should have a separate pluggable + storage/query interface. (Robert Evans via tgraves) + + MAPREDUCE-3942. Randomize master key generation for + ApplicationTokenSecretManager and roll it every so often. (Vinod Kumar + Vavilapalli via sseth) + + MAPREDUCE-4151. RM scheduler web page should filter apps to those that + are relevant to scheduling (Jason Lowe via tgraves) + + MAPREDUCE-4134. Remove references of mapred.child.ulimit etc. since they + are not being used any more (Ravi Prakash via bobby) + + MAPREDUCE-3972. Fix locking and exception issues in JobHistory server. + (Robert Joseph Evans via sseth) + + MAPREDUCE-4161. create sockets consistently (Daryn Sharp via bobby) + + MAPREDUCE-4079. Allow MR AppMaster to limit ephemeral port range. + (bobby via tgraves) + + MAPREDUCE-4210. Expose listener address for WebApp (Daryn Sharp via bobby) + + MAPREDUCE-4162. Correctly set token service (Daryn Sharp via bobby) + + MAPREDUCE-4301. Dedupe some strings in MRAM for memory savings + (bobby via tgraves) + + MAPREDUCE-4267. mavenize pipes (tgraves via bobby) + + MAPREDUCE-4375. Show Configuration Tracability in MR UI (bobby + via tgraves) + + MAPREDUCE-4569. Fixed TestHsWebServicesJobsQuery to pass on JDK7 by not + depending on test order. (Thomas Graves via vinodkv) + + OPTIMIZATIONS + + MAPREDUCE-3850. Avoid redundant calls for tokens in TokenCache (Daryn + Sharp via bobby) + + BUG FIXES + + MAPREDUCE-4092. commitJob Exception does not fail job (Jon Eagles via + bobby) + + MAPREDUCE-4089. Hung Tasks never time out. (Robert Evans via tgraves) + + MAPREDUCE-4024. RM webservices can't query on finalStatus (Tom Graves + via bobby) + + MAPREDUCE-4060. Multiple SLF4J binding warning (Jason Lowe via bobby) + + MAPREDUCE-3983. TestTTResourceReporting can fail, and should just be + deleted (Ravi Prakash via bobby) + + MAPREDUCE-4012 Hadoop Job setup error leaves no useful info to users + (when LinuxTaskController is used). (tgraves) + + MAPREDUCE-4062. AM Launcher thread can hang forever (tgraves via bobby) + + MAPREDUCE-3988. mapreduce.job.local.dir doesn't point to a single directory + on a node. (Eric Payne via bobby) + + MAPREDUCE-3999. Tracking link gives an error if the AppMaster hasn't + started yet (Ravi Prakash via bobby) + + MAPREDUCE-4020. Web services returns incorrect JSON for deep queue tree + (Anupam Seth via tgraves) + + MAPREDUCE-3672. Killed maps shouldn't be counted towards + JobCounter.NUM_FAILED_MAPS. (Anupam Seth via tgraves) + + MAPREDUCE-3682 Tracker URL says AM tasks run on localhost. + (Ravi Prakash via tgraves) + + MAPREDUCE-3082. Archive command take wrong path for input file with current + directory (John George via bobby) + + MAPREDUCE-3650. testGetTokensForHftpFS() fails (Ravi Prakash via bobby) + + MAPREDUCE-3621. TestDBJob and TestDataDrivenDBInputFormat ant tests fail + (Ravi Prakash via tgraves) + + MAPREDUCE-4073. CS assigns multiple off-switch containers when using + multi-level-queues (Siddharth Seth via bobby) + + MAPREDUCE-4051. Remove the empty hadoop-mapreduce-project/assembly/all.xml + file (Ravi Prakash via bobby) + + MAPREDUCE-4117. mapred job -status throws NullPointerException (Devaraj K + via bobby) + + MAPREDUCE-4099. ApplicationMaster may fail to remove staging directory + (Jason Lowe via bobby) + + MAPREDUCE-4017. Add jobname to jobsummary log (tgraves and Koji Noguchi + via bobby) + + MAPREDUCE-4040. History links should use hostname rather than IP address. + (Bhallamudi Venkata Siva Kamesh via sseth) + + MAPREDUCE-4099 amendment. ApplicationMaster will remove staging directory + after the history service is stopped. (Jason Lowe via sseth) + + MAPREDUCE-3932. Fix the TaskAttempt state machine to handle + CONTIANER_LAUNCHED and CONTIANER_LAUNCH_FAILED events in additional + states. (Robert Joseph Evans via sseth) + + MAPREDUCE-4140. mapreduce classes incorrectly importing + "clover.org.apache.*" classes. (Patrick Hunt via tomwhite) + + MAPREDUCE-4050. For tasks without assigned containers, changes the node + text on the UI to N/A instead of a link to null. (Bhallamudi Venkata Siva + Kamesh via sseth) + + MAPREDUCE-4128. AM Recovery expects all attempts of a completed task to + also be completed. (Bikas Saha via bobby) + + MAPREDUCE-4144. Fix a NPE in the ResourceManager when handling node + updates. (Jason Lowe via sseth) + + MAPREDUCE-4156. ant build fails compiling JobInProgress (tgraves) + + MAPREDUCE-4160. some mrv1 ant tests fail with timeout - due to 4156 + (tgraves) + + MAPREDUCE-4074. Client continuously retries to RM When RM goes down + before launching Application Master (xieguiming via tgraves) + + MAPREDUCE-4159. Job is running in Uber mode after setting + "mapreduce.job.ubertask.maxreduces" to zero (Devaraj K via bobby) + + MAPREDUCE-4165. Committing is misspelled as commiting in task logs + (John Eagles via bobby) + + MAPREDUCE-4129. Lots of unneeded counters log messages (Ahmed Radwan via + bobby) + + MAPREDUCE-3947. yarn.app.mapreduce.am.resource.mb not documented + (Devaraj K via bobby) + + MAPREDUCE-4190. Improve web UI for task attempts userlog link (Tom Graves + via bobby) + + MAPREDUCE-4133. MR over viewfs is broken (John George via bobby) + + MAPREDUCE-4194. ConcurrentModificationError in DirectoryCollection + (Jonathan Eagles via bobby) + + MAPREDUCE-3613. web service calls header contains 2 content types + (tgraves) + + MAPREDUCE-4169. Container Logs appear in unsorted order (Jonathan Eagles + via bobby) + + MAPREDUCE-4189. TestContainerManagerSecurity is failing (Devaraj K via + bobby) + + MAPREDUCE-4209. junit dependency in hadoop-mapreduce-client is missing + scope test (Radim Kolar via bobby) + + MAPREDUCE-4206. Sorting by Last Health-Update on the RM nodes page sorts + does not work correctly (Jonathon Eagles via tgraves) + + MAPREDUCE-4212. TestJobClientGetJob sometimes fails + (Daryn Sharp via tgraves) + + MAPREDUCE-4211. Error conditions (missing appid, appid not found) are + masked in the RM app page (Jonathan Eagles via bobby) + + MAPREDUCE-4163. consistently set the bind address (Daryn Sharp via bobby) + + MAPREDUCE-4048. NullPointerException exception while accessing the + Application Master UI (Devaraj K via bobby) + + MAPREDUCE-4220. RM apps page starttime/endtime sorts are incorrect + (Jonathan Eagles via bobby) + + MAPREDUCE-4226. ConcurrentModificationException in FileSystemCounterGroup. + (tomwhite) + + MAPREDUCE-4215. RM app page shows 500 error on appid parse error + (Jonathon Eagles via tgraves) + + MAPREDUCE-4237. TestNodeStatusUpdater can fail if localhost has a domain + associated with it (bobby) + + MAPREDUCE-4233. NPE can happen in RMNMNodeInfo. (bobby) + + MAPREDUCE-4238. mavenize data_join. (tgraves) + + MAPREDUCE-4102. job counters not available in Jobhistory webui for + killed jobs (Bhallamudi Venkata Siva Kamesh via tgraves) + + MAPREDUCE-3543. Mavenize Gridmix. (tgraves) + + MAPREDUCE-4197. Include the hsqldb jar in the hadoop-mapreduce tar + file (Ravi Prakash via tgraves) + + MAPREDUCE-4269. documentation: Gridmix has javadoc warnings in + StressJobFactory (Jonathon Eagles via tgraves). + + MAPREDUCE-3870. Invalid App Metrics + (Bhallamudi Venkata Siva Kamesh via tgraves). + + MAPREDUCE-4152. map task left hanging after AM dies trying to connect to RM + (Tom Graves via bobby) + + MAPREDUCE-4297. Usersmap file in gridmix should not fail on empty lines + (Ravi Prakash via bobby) + + MAPREDUCE-4302. NM goes down if error encountered during log aggregation + (Daryn Sharp via bobby) + + MAPREDUCE-3350. Per-app RM page should have the list of application-attempts + like on the app JHS page (Jonathon Eagles via tgraves) + + MAPREDUCE-3842. Stop webpages from automatic refreshing (tgraves) + + MAPREDUCE-3927. Shuffle hang when set map.failures.percent + (Bhallamudi Venkata Siva Kamesh via tgraves) + + MAPREDUCE-4311. Capacity scheduler.xml does not accept decimal values for + capacity and maximum-capacity settings (Karthik Kambatla via tgraves) + + MAPREDUCE-4341. add types to capacity scheduler properties documentation + (Karthik Kambatla via tgraves) + + MAPREDUCE-4270. Move the data_join test classes to the correct path. + (Thomas Graves via sseth) + + MAPREDUCE-3889. job client tries to use /tasklog interface, but that + doesn't exist anymore (Devaraj K via bobby) + + MAPREDUCE-4320. gridmix mainClass wrong in pom.xml (tgraves) + + MAPREDUCE-4295. RM crashes due to DNS issue (tgraves) + + MAPREDUCE-4228. mapreduce.job.reduce.slowstart.completedmaps is not working + properly (Jason Lowe via bobby) + + MAPREDUCE-4392. Counters.makeCompactString() changed behavior from 0.20 + (Jason Lowe via bobby) + + MAPREDUCE-4384. Race conditions in IndexCache (Kihwal Lee via tgraves) + + MAPREDUCE-4387. RM gets fatal error and exits during TestRM + (Kihwal Lee via tgraves) + + MAPREDUCE-4379. Node Manager throws java.lang.OutOfMemoryError: Java heap + space due to org.apache.hadoop.fs.LocalDirAllocator.contexts (Devaraj K + via bobby) + + MAPREDUCE-4402. TestFileInputFormat fails intermittently (Jason Lowe via + bobby) + + MAPREDUCE-4300. OOM in AM can turn it into a zombie. (Robert Evans via + tgraves) + + MAPREDUCE-4252. MR2 job never completes with 1 pending task (Tom White via + bobby) + + MAPREDUCE-3940. ContainerTokens should have an expiry interval. (Siddharth + Seth and Vinod Kumar Vavilapalli via vinodkv) + + MAPREDUCE-4419. ./mapred queue -info <queuename> -showJobs displays all + the jobs irrespective of <queuename> (Devaraj K via bobby) + + MAPREDUCE-4299. Terasort hangs with MR2 FifoScheduler (Tom White via + bobby) + + MAPREDUCE-4437. Race in MR ApplicationMaster can cause reducers to never be + scheduled (Jason Lowe via bobby) + + MAPREDUCE-4449. Incorrect MR_HISTORY_STORAGE property name in JHAdminConfig + (Ahmed Radwan via bobby) + + MAPREDUCE-4283. Display tail of aggregated logs by default (Jason Lowe via + bobby) + + MAPREDUCE-4448. Fix NM crash during app cleanup if aggregation didn't + init. (Jason Lowe via daryn) + + MAPREDUCE-3893. allow capacity scheduler configs maximum-applications and + maximum-am-resource-percent configurable on a per queue basis (tgraves via + bobby) + + MAPREDUCE-4467. IndexCache failures due to missing synchronization + (Kihwal Lee via tgraves) + + MAPREDUCE-4423. Potential infinite fetching of map output (Robert Evans + via tgraves) + + MAPREDUCE-4456. LocalDistributedCacheManager can get an + ArrayIndexOutOfBounds when creating symlinks (Robert Evans via tgraves) + + MAPREDUCE-4496. AM logs link is missing user name (Jason Lowe via bobby) + + MAPREDUCE-4493. Distibuted Cache Compatability Issues (Robert Evans + via tgraves) + + MAPREDUCE-4492. Configuring total queue capacity between 100.5 and 99.5 at + perticular level is sucessfull (Mayank Bansal via bobby) + + MAPREDUCE-4457. mr job invalid transition TA_TOO_MANY_FETCH_FAILURE at + FAILED (Robert Evans via tgraves) + + MAPREDUCE-4234. SortValidator.java is incompatible with multi-user or + parallel use (due to a /tmp file with static name) (Robert Evans via + jeagles) + + MAPREDUCE-4504. SortValidator writes to wrong directory (Robert Evans + via tgraves) + + MAPREDUCE-4503. Should throw InvalidJobConfException if duplicates found in + cacheArchives or cacheFiles (Robert Evans via jeagles) + + MAPREDUCE-3782. teragen terasort jobs fail when using webhdfs:// (Jason + Lowe via bobby) + + MAPREDUCE-4053. Counters group names deprecation is wrong, iterating over + group names deprecated names don't show up (Robert Evans via tgraves) + + MAPREDUCE-3506. Calling getPriority on JobInfo after parsing a history log + with JobHistoryParser throws a NullPointerException (Jason Lowe via bobby) + + MAPREDUCE-4570. ProcfsBasedProcessTree#constructProcessInfo() prints a + warning if procfsDir/<pid>/stat is not found. (Ahmed Radwan via bobby) + + MAPREDUCE-4600. TestTokenCache.java from MRV1 no longer compiles (daryn + via bobby) + + MAPREDUCE-4612. job summary file permissions not set when its created + (tgraves via bobby) + + MAPREDUCE-4614. Simplify debugging a job's tokens (daryn via bobby) + + MAPREDUCE-4611. MR AM dies badly when Node is decommissioned (Robert + Evans via tgraves) + + MAPREDUCE-4604. In mapred-default, mapreduce.map.maxattempts & + mapreduce.reduce.maxattempts defaults are set to 4 as well as + mapreduce.job.maxtaskfailures.per.tracker. (Ravi Prakash via jeagles) + + MAPREDUCE-4633. history server doesn't set permissions on all subdirs + (tgraves via bobby) + + MAPREDUCE-4641. Exception in commitJob marks job as successful in job + history (Jason Lowe via bobby) + + MAPREDUCE-4549. Distributed cache conflicts breaks backwards compatability + (Robert Evans via tucu) + +Release 0.23.2 - UNRELEASED + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + MAPREDUCE-3849. Change TokenCache's reading of the binary token file + (Daryn Sharp via bobby) + + MAPREDUCE-3854. Fixed and reenabled tests related to MR child JVM's + environmental variables in TestMiniMRChildTask. (Tom White via vinodkv) + + MAPREDUCE-3877 Add a test to formalise the current state transitions + of the yarn lifecycle. (stevel) + + MAPREDUCE-3866. Fixed the bin/yarn script to not print the command line + unnecessarily. (vinodkv) + + MAPREDUCE-3730. Modified RM to allow restarted NMs to be able to join the + cluster without waiting for expiry. (Jason Lowe via vinodkv) + + MAPREDUCE-2793. Corrected AppIDs, JobIDs, TaskAttemptIDs to be of correct + format on the web pages. (Bikas Saha via vinodkv) + + MAPREDUCE-3614. Fixed MR AM to close history file quickly and send a correct + final state to the RM when it is killed. (Ravi Prakash via vinodkv) + + MAPREDUCE-3497. Added docs for YARN CLI. (tgraves via acmurthy) + + MAPREDUCE-3954. Added new envs to separate heap size for different daemons + started via bin scripts. (Robert Joseph Evans via vinodkv) + + MAPREDUCE-4025. AM can crash if task attempt reports bogus progress value + (Jason Lowe via bobby) + + MAPREDUCE-4034. Unable to view task logs on history server with + mapreduce.job.acl-view-job=* (Jason Lowe and Siddarth Seth via bobby) + + MAPREDUCE-4043. Secret keys set in Credentials are not seen by tasks + (Jason Lowe via bobby) + + MAPREDUCE-3989. Cap space usage of default log4j rolling policy. + (Patrick Hunt via eli) + + OPTIMIZATIONS + + MAPREDUCE-3901. Modified JobHistory records in YARN to lazily load job and + task reports so as to improve UI response times. (Siddarth Seth via vinodkv) + + MAPREDUCE-2855. Passing a cached class-loader to ResourceBundle creator to + minimize counter names lookup time. (Siddarth Seth via vinodkv) + + MAPREDUCE-3944. Change the history jobs/ webservice to return partial job + info for a significant performance improvement. (Robert Joseph Evans via + sseth) + + BUG FIXES + + MAPREDUCE-3918 proc_historyserver no longer in command line arguments for + HistoryServer (Jon Eagles via bobby) + + MAPREDUCE-3862. Nodemanager can appear to hang on shutdown due to lingering + DeletionService threads (Jason Lowe via bobby) + + MAPREDUCE-3680. FifoScheduler web service rest API can print out invalid + JSON. (B Anil Kumar via tgraves) + + MAPREDUCE-3852. Test TestLinuxResourceCalculatorPlugin failing. (Thomas + Graves via mahadev) + + MAPREDUCE-3864. Fix cluster setup docs for correct SecondaryNameNode + HTTPS parameters. (todd) + + MAPREDUCE-3583. Change pid to String and stime to BigInteger in order to + avoid NumberFormatException caused by overflow. (Zhihong Yu via szetszwo) + + MAPREDUCE-3634. Fixed all daemons to crash instead of hanging around when + their EventHandlers get exceptions. (vinodkv) + + MAPREDUCE-3798. Fixed failing TestJobCleanup.testCusomCleanup() and moved it + to the maven build. (Ravi Prakash via vinodkv) + + MAPREDUCE-3884. PWD should be first in the classpath of MR tasks (tucu) + + MAPREDUCE-3878. Null user on filtered jobhistory job page (Jonathon Eagles + via tgraves) + + MAPREDUCE-3738. MM can hang during shutdown if AppLogAggregatorImpl thread + dies unexpectedly (Jason Lowe via sseth) + + MAPREDUCE-3904 Job history produced with mapreduce.cluster.acls.enabled + false can not be viewed with mapreduce.cluster.acls.enabled true + (Jonathon Eagles via tgraves) + + MAPREDUCE-3910. Fixed a bug in CapacityScheduler LeafQueue which was causing + app-submission to fail. (John George via vinodkv) + + MAPREDUCE-3686. Fixed two bugs in Counters because of which web app displays + zero counter values for framework counters. (Bhallamudi Venkata Siva Kamesh + via vinodkv) + + MAPREDUCE-3913. RM application webpage is unresponsive after 2000 jobs + (Jason Lowe via tgraves) + + MAPREDUCE-3922. Fixed build to not compile 32bit container-executor binary + by default on all platforms. (Hitesh Shah via vinodkv) + + MAPREDUCE-3790. Broken pipe on streaming job can lead to truncated output for + a successful job (Jason Lowe via bobby) + + MAPREDUCE-3816. capacity scheduler web ui bar graphs for used capacity wrong + (tgraves via bobby) + + MAPREDUCE-3930. Fixed an NPE while accessing the AM page/webservice for a + task attempt without an assigned container. (Robert Joseph Evans via + sseth) + + MAPREDUCE-3931. Changed PB implementation of LocalResource to take locks + so that race conditions don't fail tasks by inadvertantly changing the + timestamps. (Siddarth Seth via vinodkv) + + MAPREDUCE-3687. If AM dies before it returns new tracking URL, proxy + redirects to http://N/A/ and doesn't return error code (Ravi Prakash via + bobby) + + MAPREDUCE-3920. Revise yarn default port number selection + (Dave Thompson via tgraves) + + MAPREDUCE-3903. Add support for mapreduce admin users. (Thomas Graves via + sseth) + + MAPREDUCE-3706. Fix circular redirect error in job-attempts page. (bobby + via acmurthy) + + MAPREDUCE-3896. Add user information to the delegation token issued by the + history server. (Vinod Kumar Vavilapalli via sseth) + + MAPREDUCE-3792. Fix "bin/mapred job -list" to display all jobs instead of + only the jobs owned by the user. (Jason Lowe via vinodkv) + + MAPREDUCE-3929. Fixed output of 'bin/mapred queue -showacl' command to + clarify ACLs for users. (John George via acmurthy) + + MAPREDUCE-3960. Fix web-proxy to forward request to AM with configured + hostname or IP. (tgraves via acmurthy) + + MAPREDUCE-3897. Fixed computation of maxActiveAppsPerUser for queues by + using capacity and not max-capacity since we are already scaling it by + userLimitFactor. (Eric Payne via acmurthy) + + MAPREDUCE-3009. Fixed node link on JobHistory webapp. (chackaravarthy via + vinodkv) + + MAPREDUCE-3964. ResourceManager does not have JVM metrics (Jason Lowe via + bobby) + + MAPREDUCE-3034. Ensure NodeManager reboots itself on direction from + ResourceManager. (Devaraj K & Eric Payne via acmurthy) + + MAPREDUCE-3976. TestRMContainerAllocator failing (Jason Lowe via bobby) + + MAPREDUCE-3961. Map/ReduceSlotMillis computation incorrect (Siddharth Seth + via bobby) + + MAPREDUCE-3977. LogAggregationService leaks log aggregator objects + (Jason Lowe via bobby) + + MAPREDUCE-3975. Default value not set for Configuration parameter + mapreduce.job.local.dir (Eric Payne via bobby) + + MAPREDUCE-3982. Fixed FileOutputCommitter to not err out for an 'empty-job' + whose tasks don't write any outputs. (Robert Joseph Evans via vinodkv) + + MAPREDUCE-4005. Fixes broken AM container logs URL on ResourceManager + Application Info page. (Jason Lowe via sseth) + + MAPREDUCE-4006. History server container log web UI sometimes combines + stderr/stdout/syslog contents together (Siddharth Seth via tgraves) + + MAPREDUCE-4061. RM only has 1 AM launcher thread (tgraves via bobby) + +Release 0.23.1 - 2012-02-17 + + NEW FEATURES + + MAPREDUCE-778. Rumen Anonymizer. (Amar Kamat and Chris Douglas via amarrk) + + MAPREDUCE-3121. NodeManager should handle disk-failures (Ravi Gummadi via mahadev) + + MAPREDUCE-2863. Support web services for YARN and MR components. (Thomas + Graves via vinodkv) + + MAPREDUCE-3251. Network ACLs can prevent some clients to talk to MR ApplicationMaster. + (Anupam Seth via mahadev) + + MAPREDUCE-778. Rumen Anonymizer. (Amar Kamat and Chris Douglas via amarrk) + + IMPROVEMENTS + + MAPREDUCE-3481. [Gridmix] Improve Gridmix STRESS mode. (amarrk) + + MAPREDUCE-3597. [Rumen] Rumen should provide APIs to access all the + job-history related information. + + MAPREDUCE-3375. [Gridmix] Memory Emulation system tests. + (Vinay Thota via amarrk) + + MAPREDUCE-3840. JobEndNotifier doesn't use the proxyToUse during connecting + (Ravi Prakash via bobby) + + MAPREDUCE-3736. Variable substitution depth too large for fs.default.name + causes jobs to fail (ahmed via tucu). + + MAPREDUCE-2733. [Gridmix] Gridmix3 cpu emulation system tests. + (Vinay Thota via amarrk) + + MAPREDUCE-3297. Moved log related components into yarn-common so that + HistoryServer and clients can use them without depending on the + yarn-server-nodemanager module. (Siddharth Seth via vinodkv) + + MAPREDUCE-3336. Replaced guice internal.Preconditions api usage with the + public Preconditions API. (Thomas Graves via vinodkv) + + MAPREDUCE-3280. Removed the unnecessary job user-name configuration in + mapred-site.xml. (vinodkv) + + MAPREDUCE-3370. Fixed MiniMRYarnCluster and related tests to not use + a hard-coded path for the mr-app jar. (Ahmed Radwan via vinodkv) + + MAPREDUCE-3325. Improvements to CapacityScheduler doc. (Thomas Graves + via mahadev) + + MAPREDUCE-3341. Enhance logging of initalized queue limit values. + (Anupam Seth via mahadev) + + MAPREDUCE-3243. Invalid tracking URL for streaming jobs (Jonathan Eagles + via mahadev) + + MAPREDUCE-3331. Improvement to single node cluster setup documentation for + 0.23 (Anupam Seth via mahadev) + + MAPREDUCE-3102. Changed NodeManager to fail fast when LinuxContainerExecutor + has wrong configuration or permissions. (Hitesh Shah via vinodkv) + + MAPREDUCE-3415. improve MiniMRYarnCluster & DistributedShell JAR + resolution. (tucu) + + MAPREDUCE-3169. Create a new MiniMRCluster equivalent which only provides + client APIs cross MR1 and MR2. (Ahmed via tucu) + + MAPREDUCE-3373. Hadoop scripts unconditionally source + "$bin"/../libexec/hadoop-config.sh. (Bruno Mahé via tomwhite) + + MAPREDUCE-3372. HADOOP_PREFIX cannot be overridden. + (Bruno Mahé via tomwhite) + + MAPREDUCE-3411. Performance Upgrade for jQuery (Jonathan Eagles via + mahadev) + + MAPREDUCE-3371. Review and improve the yarn-api javadocs. (Ravi Prakash + via mahadev) + + MAPREDUCE-3238. Small cleanup in SchedulerApp. (Todd Lipcon via mahadev) + + MAPREDUCE-3413. RM web ui applications not sorted in any order by default. + (Jonathan Eagles via mahadev) + + MAPREDUCE-3045. Fixed UI filters to not filter on hidden title-numeric + sort fields. (Jonathan Eagles via sseth) + + MAPREDUCE-3448. TestCombineOutputCollector javac unchecked warning on mocked + generics (Jonathan Eagles via mahadev) + + MAPREDUCE-3169 amendment. Deprecate MiniMRCluster. (Ahmed Radwan via + sseth) + + MAPREDUCE-3369. Migrate MR1 tests to run on MR2 using the new interfaces + introduced in MAPREDUCE-3169. (Ahmed Radwan via tomwhite) + + MAPREDUCE-3518. mapred queue -info <queue> -showJobs throws NPE. + (Jonathan Eagles via mahadev) + + MAPREDUCE-3391. Making a trivial change to correct a log message in + DistributedShell app's AM. (Subroto Sanyal via vinodkv) + + MAPREDUCE-3547. Added a bunch of unit tests for the the RM/NM webservices. + (Thomas Graves via acmurthy) + + MAPREDUCE-3610. Remove use of the 'dfs.block.size' config for default block + size fetching. Use FS#getDefaultBlocksize instead. (Sho Shimauchi via harsh) + + MAPREDUCE-3478. Cannot build against ZooKeeper 3.4.0. (Tom White via mahadev) + + MAPREDUCE-3528. Fixed TaskHeartBeatHandler to use a new configuration + for the thread loop interval separate from task-timeout configuration + property. (Siddharth Seth via vinodkv) + + MAPREDUCE-3312. Modified MR AM to not send a stop-container request for + a container that isn't launched at all. (Robert Joseph Evans via vinodkv) + + MAPREDUCE-3382. Enhanced MR AM to use a proxy to ping the job-end + notification URL. (Ravi Prakash via vinodkv) + + MAPREDUCE-3299. Added AMInfo table to the MR AM job pages to list all the + job-attempts when AM restarts and recovers. (Jonathan Eagles via vinodkv) + + MAPREDUCE-3251. Network ACLs can prevent some clients to talk to MR AM. + Improved the earlier patch to not to JobHistoryServer repeatedly. + (Anupam Seth via vinodkv) + + MAPREDUCE-3553. Add support for data returned when exceptions thrown from web + service apis to be in either xml or in JSON. (Thomas Graves via mahadev) + + MAPREDUCE-3641. Making CapacityScheduler more conservative so as to + assign only one off-switch container in a single scheduling + iteration. (Arun C Murthy via vinodkv) + + MAPREDUCE-3692. yarn-resourcemanager out and log files can get big. (eli) + + MAPREDUCE-3710. Improved FileInputFormat to return better locality for the + last split. (Siddarth Seth via vinodkv) + + MAPREDUCE-2765. DistCp Rewrite. (Mithun Radhakrishnan via mahadev) + + MAPREDUCE-3737. The Web Application Proxy's is not documented very well. + (Robert Evans via mahadev) + + MAPREDUCE-3699. Increased RPC handlers for all YARN servers to reasonable + values for working at scale. (Hitesh Shah via vinodkv) + + MAPREDUCE-3693. Added mapreduce.admin.user.env to mapred-default.xml. + (Roman Shapshonik via acmurthy) + + MAPREDUCE-3732. Modified CapacityScheduler to use only users with pending + requests for computing user-limits. (Arun C Murthy via vinodkv) + + MAPREDUCE-3679. AM logs and others should not automatically refresh after every 1 + second. (Vinod KV via mahadev) + + MAPREDUCE-3754. Modified RM UI to filter applications based on state of the + applications. (vinodkv) + + MAPREDUCE-3774. Moved yarn-default.xml to hadoop-yarn-common from + hadoop-server-common. (Mahadev Konar via vinodkv) + + MAPREDUCE-3771. Un-deprecated the old mapred apis, port of MAPREDUCE-1735. + (acmurthy) + + MAPREDUCE-3784. Fixed CapacityScheduler so that maxActiveApplications and + maxActiveApplicationsPerUser per queue are not too low for small + clusters. (Arun C Murthy via vinodkv) + + OPTIMIZATIONS + + MAPREDUCE-3567. Extraneous JobConf objects in AM heap. (Vinod Kumar + Vavilapalli via sseth) + + MAPREDUCE-3399. Modifying ContainerLocalizer to send a heartbeat to NM + immediately after downloading a resource instead of always waiting for a + second. (Siddarth Seth via vinodkv) + + MAPREDUCE-3568. Optimized Job's progress calculations in MR AM. (vinodkv) + + MAPREDUCE-3569. TaskAttemptListener holds a global lock for all + task-updates. (Vinod Kumar Vavilapalli via sseth) + + MAPREDUCE-3511. Removed a multitude of cloned/duplicate counters in the AM + thereby reducing the AM heap size and preventing full GCs. (vinodkv) + + MAPREDUCE-3618. Fixed TaskHeartbeatHandler to not hold a global lock for all + task-updates. (Siddarth Seth via vinodkv) + + MAPREDUCE-3512. Batching JobHistory flushing to DFS so that we don't flush + for every event slowing down AM. (Siddarth Seth via vinodkv) + + MAPREDUCE-3718. Change default AM heartbeat interval to 1 second. (Hitesh + Shah via sseth) + + MAPREDUCE-3360. Added information about lost/rebooted/decommissioned nodes + on the webapps. (Bhallamudi Venkata Siva Kamesh and Jason Lowe via vinodkv) + + MAPREDUCE-3756. Made single shuffle limit configurable. (Hitesh Shah via + acmurthy) + + MAPREDUCE-3811. Made jobclient-to-AM retries configurable. (sseth via + acmurthy) + + BUG FIXES + + MAPREDUCE-2784. [Gridmix] Bug fixes in ExecutionSummarizer and + ResourceUsageMatcher. (amarrk) + + MAPREDUCE-3194. "mapred mradmin" command is broken in mrv2 + (Jason Lowe via bobby) + + MAPREDUCE-3462. Fix Gridmix JUnit testcase failures. + (Ravi Prakash and Ravi Gummadi via amarrk) + + MAPREDUCE-2950. [Rumen] Fixed TestUserResolve. (Ravi Gummadi via amarrk) + + MAPREDUCE-3412. Fix 'ant docs'. (amarrk) + + MAPREDUCE-3346 [Rumen] LoggedTaskAttempt#getHostName() returns null. + (amarrk) + + MAPREDUCE-3221. Reenabled the previously ignored test in TestSubmitJob + and fixed bugs in it. (Devaraj K via vinodkv) + + MAPREDUCE-3215. Reenabled and fixed bugs in the failing test + TestNoJobSetupCleanup. (Hitesh Shah via vinodkv) + + MAPREDUCE-3219. Reenabled and fixed bugs in the failing test + TestDelegationToken. (Hitesh Shah via vinodkv) + + MAPREDUCE-3217. Reenabled and fixed bugs in the failing ant test + TestAuditLogger. (Devaraj K via vinodkv) + + MAPREDUCE-3291. App fail to launch due to delegation token not + found in cache (Robert Evans via mahadev) + + MAPREDUCE-3344. o.a.h.mapreduce.Reducer since 0.21 blindly casts to + ReduceContext.ValueIterator. (Brock Noland via tomwhite) + + MAPREDUCE-3342. Fixed JobHistoryServer to also show the job's queue + name. (Jonathan Eagles via vinodkv) + + MAPREDUCE-3345. Fixed a race condition in ResourceManager that was causing + TestContainerManagerSecurity to fail sometimes. (Hitesh Shah via vinodkv) + + MAPREDUCE-3368. Fixed test compilation. (Hitesh Shah via vinodkv) + + MAPREDUCE-3333. Fixed bugs in ContainerLauncher of MR AppMaster due to + which per-container connections to NodeManager were lingering long enough + to hit the ulimits on number of processes. (vinodkv) + + MAPREDUCE-3392. Fixed Cluster's getDelegationToken's API to return null + when there isn't a supported token. (John George via vinodkv) + + MAPREDUCE-3379. Fixed LocalResourceTracker in NodeManager to remove deleted + cache entries correctly. (Siddharth Seth via vinodkv) + + MAPREDUCE-3324. Not All HttpServer tools links (stacks,logs,config,metrics) are + accessible through all UI servers (Jonathan Eagles via mahadev) + + MAPREDUCE-3355. Fixed MR AM's ContainerLauncher to handle node-command + timeouts correctly. (vinodkv) + + MAPREDUCE-3407. Fixed pom files to refer to the correct MR app-jar needed + by the integration tests. (Hitesh Shah via vinodkv) + + MAPREDUCE-3437. Fix examples pom to refer to the correct 0.23 snapshot + version. (Jonathan Eagles via todd) + + MAPREDUCE-3434. Nightly build broken (Hitesh Shah via mahadev) + + MAPREDUCE-3447. mapreduce examples not working (mahadev) + + MAPREDUCE-3444. trunk/0.23 builds broken (Hitesh Shah via mahadev) + + MAPREDUCE-3454. [Gridmix] TestDistCacheEmulation is broken (Hitesh Shah + via mahadev) + + MAPREDUCE-3408. yarn-daemon.sh unconditionnaly sets yarn.root.logger + (Bruno Mahe via mahadev) + + MAPREDUCE-3329. Fixed CapacityScheduler to ensure maximum-capacity cannot + be lesser than capacity for any queue. (acmurthy) + + MAPREDUCE-3464. mapreduce jsp pages missing DOCTYPE. (Dave Vronay via mattf) + + MAPREDUCE-3265. Removed debug logs during job submission to LOG.debug to + cut down noise. (acmurthy) + + MAPREDUCE-3468. Changed ant based infrastructure to use 0.23.1 version. + (sseth via acmurthy) + + MAPREDUCE-3433. Finding counters by legacy group name returns empty + counters. (tomwhite) + + MAPREDUCE-3450. NM port info no longer available in JobHistory. + (Siddharth Seth via mahadev) + + MAPREDUCE-3477. Hadoop site documentation cannot be built anymore. + (jeagles via tucu) + + MAPREDUCE-3488. Streaming jobs are failing because the main class + isnt set in the pom files. (mahadev) + + MAPREDUCE-3463. Second AM fails to recover properly when first AM is killed with + java.lang.IllegalArgumentException causing lost job. (Siddharth Seth via mahadev) + + MAPREDUCE-3452. fifoscheduler web ui page always shows 0% used for the queue. + (Jonathan Eagles via mahadev) + + MAPREDUCE-3443. JobClient and Job should function in the context of the + UGI which created them. (Mahadev Konar via sseth) + + MAPREDUCE-3460. MR AM can hang if containers are allocated on a node + blacklisted by the AM. (Hitesh Shah and Robert Joseph Evans via sseth) + + MAPREDUCE-3453. RM web ui application details page shows RM cluster about + information. (Jonathan Eagles via sseth) + + MAPREDUCE-3479. JobClient#getJob cannot find local jobs. (tomwhite) + + MAPREDUCE-3500. MRJobConfig creates an LD_LIBRARY_PATH using the platform ARCH. (tucu) + + MAPREDUCE-3456. $HADOOP_PREFIX/bin/yarn should set defaults for + $HADOOP_*_HOME (Eric Payne via mahadev) + + MAPREDUCE-3458. Fix findbugs warnings in hadoop-examples. (Devaraj K + via mahadev) + + MAPREDUCE-3485. DISKS_FAILED -101 error code should be defined in same location as + ABORTED_CONTAINER_EXIT_STATUS. (Ravi Gummadi via mahadev) + + MAPREDUCE-3389. MRApps loads the 'mrapp-generated-classpath' file with + classpath from the build machine. (tucu) + + MAPREDUCE-3496. Fixed client to print queue acls in consistent order. + (Jonathan Eagles via acmurthy) + + MAPREDUCE-3147. Handle leaf queues with the same name properly. + (Ravi Prakash via mahadev) + + MAPREDUCE-3327. RM web ui scheduler link doesn't show correct max value + for queues (Anupam Seth via mahadev) + + MAPREDUCE-3513. Capacity Scheduler web UI has a spelling mistake for Memory. + (chackaravarthy via mahadev) + + MAPREDUCE-3519. Fixed a deadlock in NodeManager LocalDirectories's handling + service. (Ravi Gummadi via vinodkv) + + MAPREDUCE-3527. Fix minor API incompatibilities between 1.0 and 0.23. + (tomwhite) + + MAPREDUCE-3328. mapred queue -list output inconsistent and missing child + queues. (Ravi Prakash via mahadev) + + MAPREDUCE-3510. Capacity Scheduler inherited ACLs not displayed by mapred queue + -showacls (Jonathan Eagles via mahadev) + + MAPREDUCE-3537. Fix race condition in DefaultContainerExecutor which led + to container localization occuring in wrong directories. (acmurthy) + + MAPREDUCE-3542. Support "FileSystemCounter" legacy counter group name for + compatibility. (tomwhite) + + MAPREDUCE-3426. Fixed MR AM in uber mode to write map intermediate outputs + in the correct directory to work properly in secure mode. (Hitesh Shah via + vinodkv) + + MAPREDUCE-3544. gridmix build is broken, requires hadoop-archives to be + added as ivy dependency. (tucu) + + MAPREDUCE-3557. MR1 test fail to compile because of missing hadoop-archives + dependency. (tucu) + + MAPREDUCE-3541. Fix broken TestJobQueueClient test. (Ravi Prakash via + mahadev) + + MAPREDUCE-3398. Fixed log aggregation to work correctly in secure mode. + (Siddharth Seth via vinodkv) + + MAPREDUCE-3530. Fixed an NPE occuring during scheduling in the + ResourceManager. (Arun C Murthy via vinodkv) + + MAPREDUCE-3484. Fixed JobEndNotifier to not get interrupted before completing + all its retries. (Ravi Prakash via vinodkv) + + MAPREDUCE-3531. Fixed a race in ContainerTokenSecretManager. (Robert Joseph + Evans via sseth) + + MAPREDUCE-3560. TestRMNodeTransitions is failing on trunk. + (Siddharth Seth via mahadev) + + MAPREDUCE-3487. Fixed JobHistory web-UI to display links to single task's + counters' page. (Jason Lowe via vinodkv) + + MAPREDUCE-3564. Fixed failures in TestStagingCleanup and TestJobEndNotifier + tests. (Siddharth Seth via vinodkv) + + MAPREDUCE-3422. Counter display names are not being picked up. (Jonathan + Eagles via sseth) + + MAPREDUCE-3366. Mapreduce component should use consistent directory structure + layout as HDFS/common (Eric Yang via mahadev) + + MAPREDUCE-3387. Fixed AM's tracking URL to always go through the proxy, even + before the job started, so that it works properly with oozie throughout + the job execution. (Robert Joseph Evans via vinodkv) + + MAPREDUCE-3579. ConverterUtils shouldn't include a port in a path from a url + without a port. (atm via harsh) + + MAPREDUCE-3563. Fixed LocalJobRunner to work correctly with new mapreduce + apis. (acmurthy) + + MAPREDUCE-3376. Fixed Task to ensure it passes reporter to combiners using + old MR api. (Subroto Sanyal via acmurthy) + + MAPREDUCE-3339. Fixed MR AM to stop considering node blacklisting after the + number of nodes blacklisted crosses a threshold. (Siddharth Seth via vinodkv) + + MAPREDUCE-3588. Fixed bin/yarn which was broken by MAPREDUCE-3366 so that + yarn daemons can start. (Arun C Murthy via vinodkv) + + MAPREDUCE-3349. Log rack-name in JobHistory for unsuccessful tasks. (Amar + Kamat and Devaraj K via sseth) + + MAPREDUCE-3586. Modified CompositeService to avoid duplicate stop operations + thereby solving race conditions in MR AM shutdown. (vinodkv) + + MAPREDUCE-3604. Fixed streaming to use new mapreduce.framework.name to + check for local mode. (acmurthy) + + MAPREDUCE-3521. Fixed streaming to ensure it doesn't silently ignore + unknown arguments. (Robert Evans via acmurthy) + + MAPREDUCE-3522. Ensure queues inherit ACLs from parent if they aren't + explicitly specified. (Jonathan Eagles via acmurthy) + + MAPREDUCE-3608. Fixed compile issue with MAPREDUCE-3522. (mahadev via + acmurthy) + + MAPREDUCE-3490. Fixed MapReduce AM to count failed maps also towards Reduce + ramp up. (Sharad Agarwal and Arun C Murthy via vinodkv) + + MAPREDUCE-3529. TokenCache does not cache viewfs credentials correctly + (sseth) + + MAPREDUCE-3595. Add missing TestCounters#testCounterValue test from branch + 1 to 0.23 (Tom White via sseth) + + MAPREDUCE-3566. Fixed MR AM to construct CLC only once across all tasks. + (vinodkv via acmurthy) + + MAPREDUCE-3572. Moved AM event dispatcher to a separate thread for + performance reasons. (vinodkv via acmurthy) + + MAPREDUCE-3615. Fix some ant test failures. (Thomas Graves via sseth) + + MAPREDUCE-1744. DistributedCache creates its own FileSytem instance when + adding a file/archive to the path. (Dick King via tucu) + + MAPREDUCE-3326. Added detailed information about queue's to the + CapacityScheduler web-ui. (Jason Lowe via acmurthy) + + MAPREDUCE-3548. Added more unit tests for MR AM & JHS web-services. + (Thomas Graves via acmurthy) + + MAPREDUCE-3617. Removed wrong default value for + yarn.resourcemanager.principal and yarn.nodemanager.principal. (Jonathan + Eagles via acmurthy) + + MAPREDUCE-3624. Remove unnecessary dependency on JDK's tools.jar. (mahadev + via acmurthy) + + MAPREDUCE-3616. Thread pool for launching containers in MR AM not + expanding as expected. (vinodkv via sseth) + + MAPREDUCE-3639. Fixed TokenCache to work with absent FileSystem canonical + service-names. (Siddharth Seth via vinodkv) + + MAPREDUCE-3380. Token infrastructure for running clients which are not kerberos + authenticated. (mahadev) + + MAPREDUCE-3648. TestJobConf failing. (Thomas Graves via mahadev) + + MAPREDUCE-3651. TestQueueManagerRefresh fails. (Thomas Graves via mahadev) + + MAPREDUCE-3645. TestJobHistory fails. (Thomas Graves via mahadev) + + MAPREDUCE-3652. org.apache.hadoop.mapred.TestWebUIAuthorization.testWebUIAuthorization + fails. (Thomas Graves via mahadev) + + MAPREDUCE-3625. CapacityScheduler web-ui display of queue's used capacity is broken. + (Jason Lowe via mahadev) + + MAPREDUCE-3596. Fix scheduler to handle cleaned up containers, which NMs + may subsequently report as running. (Vinod Kumar Vavilapalli via sseth) + + MAPREDUCE-3656. Fixed a race condition in MR AM which is failing the sort + benchmark consistently. (Siddarth Seth via vinodkv) + + MAPREDUCE-3532. Modified NM to report correct http address when an ephemeral + web port is configured. (Bhallamudi Venkata Siva Kamesh via vinodkv) + + MAPREDUCE-3404. Corrected MR AM to honor speculative configuration and enable + speculating either maps or reduces. (Eric Payne via vinodkv) + + MAPREDUCE-3664. Federation Documentation has incorrect configuration example. + (Brandon Li via jitendra) + + MAPREDUCE-3649. Job End notification gives an error on calling back. + (Ravi Prakash via mahadev) + + MAPREDUCE-3657. State machine visualize build fails. (Jason Lowe + via mahadev) + + MAPREDUCE-2450. Fixed a corner case with interrupted communication threads + leading to a long timeout in Task. (Rajesh Balamohan via acmurthy) + + MAPREDUCE-3669. Allow clients to talk to MR HistoryServer using both + delegation tokens and kerberos. (mahadev via acmurthy) + + MAPREDUCE-3684. LocalDistributedCacheManager does not shut down its thread + pool (tomwhite) + + MAPREDUCE-3582. Move successfully passing MR1 tests to MR2 maven tree. + (ahmed via tucu) + + MAPREDUCE-3698. Client cannot talk to the history server in secure mode. + (mahadev) + + MAPREDUCE-3689. RM web UI doesn't handle newline in job name. + (Thomas Graves via mahadev) + + MAPREDUCE-3701. Delete HadoopYarnRPC from 0.23 branch. + (mahadev) + + MAPREDUCE-3549. write api documentation for web service apis for RM, NM, + mapreduce app master, and job history server (Thomas Graves via mahadev) + + MAPREDUCE-3705. ant build fails on 0.23 branch. (Thomas Graves via + mahadev) + + MAPREDUCE-3691. webservices add support to compress response. + (Thomas Graves via mahadev) + + MAPREDUCE-3702. internal server error trying access application master + via proxy with filter enabled (Thomas Graves via mahadev) + + MAPREDUCE-3646. Remove redundant URL info from "mapred job" output. + (Jonathan Eagles via mahadev) + + MAPREDUCE-3681. Fixed computation of queue's usedCapacity. (acmurthy) + + MAPREDUCE-3505. yarn APPLICATION_CLASSPATH needs to be overridable. + (ahmed via tucu) + + MAPREDUCE-3714. Fixed EventFetcher and Fetcher threads to shut-down properly + so that reducers don't hang in corner cases. (vinodkv) + + MAPREDUCE-3712. The mapreduce tar does not contain the hadoop-mapreduce-client- + jobclient-tests.jar. (mahadev) + + MAPREDUCE-3717. JobClient test jar has missing files to run all the test programs. + (mahadev) + + MAPREDUCE-3630. Fixes a NullPointer exception while running TeraGen - if a + map is asked to generate 0 records. (Mahadev Konar via sseth) + + MAPREDUCE-3683. Fixed maxCapacity of queues to be product of parent + maxCapacities. (acmurthy) + + MAPREDUCE-3713. Fixed the way head-room is allocated to applications by + CapacityScheduler so that it deducts current-usage per user and not + per-application. (Arun C Murthy via vinodkv) + + MAPREDUCE-3721. Fixed a race in shuffle which caused reduces to hang. + (sseth via acmurthy) + + MAPREDUCE-3733. Add Apache License Header to hadoop-distcp/pom.xml. + (mahadev) + + MAPREDUCE-3735. Add distcp jar to the distribution (tar). + (mahadev) + + MAPREDUCE-3720. Changed bin/mapred job -list to not print job-specific + information not available at RM. (vinodkv via acmurthy) + + MAPREDUCE-3742. "yarn logs" command fails with ClassNotFoundException. + (Jason Lowe via mahadev) + + MAPREDUCE-3703. ResourceManager should provide node lists in JMX output. + (Eric Payne via mahadev) + + MAPREDUCE-3716. Fixing YARN+MR to allow MR jobs to be able to use + java.io.File.createTempFile to create temporary files as part of their + tasks. (Jonathan Eagles via vinodkv) + + MAPREDUCE-3748. Changed a log in CapacityScheduler.nodeUpdate to debug. + (ramya via acmurthy) + + MAPREDUCE-3764. Fixed resource usage metrics for queues and users. + (acmurthy) + + MAPREDUCE-3749. ConcurrentModificationException in counter groups. + (tomwhite) + + MAPREDUCE-3762. Fixed default CapacityScheduler configs. (mahadev via + acmurthy) + + MAPREDUCE-3499. New MiniMR does not setup proxyuser configuration + correctly, thus tests using doAs do not work. (johnvijoe via tucu) + + MAPREDUCE-3696. MR job via oozie does not work on hadoop 23. + (John George via mahadev) + + MAPREDUCE-3427. Fix streaming unit tests broken after mavenization. + (Hitesh Shah via acmurthy) + + MAPREDUCE-3640. Allow AMRecovery to work with partial JobHistory files. + (Arun C Murthy via sseth) + + MAPREDUCE-3752. Modified application limits to include queue max-capacities + besides the usual user limits. (Arun C Murthy via vinodkv) + + MAPREDUCE-3744. Fix the yarn logs command line. Improve error messages for + mapred job -logs. (Jason Lowe via sseth) + + MAPREDUCE-3780. Fixed a bug where applications killed before getting + activated were not getting cleaned up properly. (Hitesh Shah via acmurthy) + + MAPREDUCE-3708. Metrics: Incorrect Apps Submitted Count (Bhallamudi via + mahadev) + + MAPREDUCE-3727. jobtoken location property in jobconf refers to wrong + jobtoken file (tucu) + + MAPREDUCE-3711. Fixed MR AM recovery so that only single selected task + output is recovered and thus reduce the unnecessarily bloated recovery + time. (Robert Joseph Evans via vinodkv) + + MAPREDUCE-3760. Changed active nodes list to not contain unhealthy nodes + on the webUI and metrics. (vinodkv) + + MAPREDUCE-3417. Fixed job-access-controls to work with MR AM and + JobHistoryServer web-apps. (Jonathan Eagles via vinodkv) + + MAPREDUCE-3803. Fix broken build of raid contrib due to HDFS-2864. + (Ravi Prakash via suresh) + + MAPREDUCE-3791. can't build site in hadoop-yarn-server-common. + (mahadev) + + MAPREDUCE-3723. TestAMWebServicesJobs & TestHSWebServicesJobs + incorrectly asserting tests (Bhallamudi Venkata Siva Kamesh + via mahadev) + + MAPREDUCE-3795. "job -status" command line output is malformed. + (vinodkv via mahadev) + + MAPREDUCE-3759. ClassCastException thrown in -list-active-trackers when + there are a few unhealthy nodes (vinodkv via mahadev) + + MAPREDUCE-3775. Change MiniYarnCluster to escape special chars in testname. + (Hitesh Shah via mahadev) + + MAPREDUCE-3765. FifoScheduler does not respect yarn.scheduler.fifo.minimum- + allocation-mb setting (Hitesh Shah via mahadev) + + MAPREDUCE-3747. Initialize queue metrics upfront and added start/finish + time to RM Web-UI. (acmurthy) + + MAPREDUCE-3814. Fixed MRV1 compilation. (Arun C Murthy via vinodkv) + + MAPREDUCE-3810. Performance tweaks - reduced logging in AM and defined + hascode/equals for ResourceRequest & Priority. (vinodkv via acmurthy) + + MAPREDUCE-3813. Added a cache for resolved racks. (vinodkv via acmurthy) + + MAPREDUCE-3808. Fixed an NPE in FileOutputCommitter for jobs with maps + but no reduces. (Robert Joseph Evans via vinodkv) + + MAPREDUCE-3804. yarn webapp interface vulnerable to cross scripting attacks + (Dave Thompson via bobby) + + MAPREDUCE-3354. Changed scripts so that jobhistory server is started by + bin/mapred instead of bin/yarn. (Jonathan Eagles via acmurthy) + + MAPREDUCE-3809. Ensure that there is no needless sleep in Task at the end + of the task. (sseth via acmurthy) + + MAPREDUCE-3794. Support mapred.Task.Counter and mapred.JobInProgress.Counter + enums for compatibility (Tom White via mahadev) + + MAPREDUCE-3697. Support binary compatibility for Counters after + MAPREDUCE-901. (mahadev via acmurthy) + + MAPREDUCE-3817. Fixed bin/mapred to allow running of distcp and archive + jobs. (Arpit Gupta via acmurthy) + + MAPREDUCE-3709. TestDistributedShell is failing. (Hitesh Shah via + mahadev) + + MAPREDUCE-3436. JobHistory webapp address should use the host configured + in the jobhistory address. (Ahmed Radwan via sseth) + + MAPREDUCE-3815. Fixed MR AM to always use hostnames and never IPs when + requesting containers so that scheduler can give off data local containers + correctly. (Siddarth Seth via vinodkv) + + MAPREDUCE-3833. Fixed a bug in reinitiaziling of queues. (Jason Lowe via + acmurthy) + + MAPREDUCE-3826. Fixed a bug in RM web-ui which broke sorting. (Jonathan + Eagles via acmurthy) + + MAPREDUCE-3823. Ensure counters are calculated only once after a job + finishes. (Vinod Kumar Vavilapalli via sseth) + + MAPREDUCE-3827. Changed Counters to use ConcurrentSkipListMap for + performance. (vinodkv via acmurthy) + + MAPREDUCE-3822. Changed FS counter computation to use all occurences of + the same FS scheme, instead of randomly using one. (Mahadev Konar via + sseth) + + MAPREDUCE-3834. Changed MR AM to not add the same rack entry multiple times + into the container request table when multiple hosts for a split happen to + be on the same rack. (Siddarth Seth via vinodkv) + + MAPREDUCE-3828. Ensure that urls in single-node mode are correct. (sseth + via acmurthy) + + MAPREDUCE-3770. Zombie.getJobConf() results into NPE. (amarrk) + + MAPREDUCE-3843. Job summary log file found missing on the RM host + (Anupam Seth via tgraves) + + MAPREDUCE-3846. Addressed MR AM hanging issues during AM restart and then + the recovery. (vinodkv) + + MAPREDUCE-3802. Added test to validate that AM can crash multiple times and + still can recover successfully after MAPREDUCE-3846. (vinodkv) + + MAPREDUCE-3858. Task attempt failure during commit results in task never completing. + (Tom White via mahadev) + + MAPREDUCE-3856. Instances of RunningJob class givs incorrect job tracking + urls when mutiple jobs are submitted from same client jvm. (Eric Payne via + sseth) + + MAPREDUCE-3880. Changed LCE binary to be 32-bit. (acmurthy) + +Release 0.23.0 - 2011-11-01 + + INCOMPATIBLE CHANGES + + MAPREDUCE-2455. Remove deprecated JobTracker.State in favour of + JobTrackerStatus. (tomwhite) + + MAPREDUCE-2430. Remove mrunit contrib. (nigel via eli) + + MAPREDUCE-2606. Remove IsolationRunner. (Alejandro Abdelnur via eli) + + NEW FEATURES + + MAPREDUCE-2682. Add "mapred classpath" command to print classpath + for MR applications. (vinodkv via acmurthy) + + MAPREDUCE-2107. [Gridmix] Total heap usage emulation in Gridmix. + (Amar Kamat and Ravi Gummadi via amarrk) + + MAPREDUCE-2106. [Gridmix] Cumulative CPU usage emulation in Gridmix. + (amarrk) + + MAPREDUCE-2543. [Gridmix] High-Ram feature emulation in Gridmix. (amarrk) + + MAPREDUCE-2408. [Gridmix] Compression emulation in Gridmix. (amarrk) + + MAPREDUCE-2473. Add "mapred groups" command to query the server-side groups + resolved for a user. (Aaron T. Myers via todd) + + MAPREDUCE-461. Enable ServicePlugins for the JobTracker. + (Fredrik Hedberg via tomwhite) + + MAPREDUCE-2521. Create RPM and Debian packages for MapReduce. Changes + deployment layout to be consistent across the binary tgz, rpm, and deb. + (Eric Yang via omalley) + + MAPREDUCE-2323. Add metrics to the fair scheduler. (todd) + + MAPREDUCE-2037. Capture intermediate progress, CPU and memory usage for + tasks. (Dick King via acmurthy) + + MAPREDUCE-279. MapReduce 2.0. Merging MR-279 branch into trunk. Contributed by + Arun C Murthy, Christopher Douglas, Devaraj Das, Greg Roelofs, Jeffrey + Naisbitt, Josh Wills, Jonathan Eagles, Krishna Ramachandran, Luke Lu, Mahadev + Konar, Robert Evans, Sharad Agarwal, Siddharth Seth, Thomas Graves, and Vinod + Kumar Vavilapalli. + + MAPREDUCE-2930. Added the ability to be able to generate graphs from the + state-machine definitions. (Binglin Chang via vinodkv) + + MAPREDUCE-2719. Add a simple, DistributedShell, application to illustrate + alternate frameworks on YARN. (Hitesh Shah via acmurthy) + + MAPREDUCE-3104. Implemented Application-acls. (vinodkv) + + MAPREDUCE-2708. Designed and implemented MR Application Master recovery to + make MR AMs resume their progress after restart. (Sharad Agarwal via vinodkv) + + MAPREDUCE-2858. Added a WebApp Proxy for applications. (Robert Evans via + acmurthy) + + IMPROVEMENTS + + MAPREDUCE-2187. Reporter sends progress during sort/merge. (Anupam Seth via + acmurthy) + + MAPREDUCE-2365. Add counters to track bytes (read,written) via + File(Input,Output)Format. (Siddharth Seth via acmurthy) + + MAPREDUCE-2680. Display queue name in job client CLI. (acmurthy) + + MAPREDUCE-2679. Minor changes to sync trunk with MR-279 branch. (acmurthy) + + MAPREDUCE-2400. Remove Cluster's dependency on JobTracker via a + ServiceProvider for the actual implementation. (tomwhite via acmurthy) + + MAPREDUCE-2596. [Gridmix] Summarize Gridmix runs. (amarrk) + + MAPREDUCE-2563. [Gridmix] Add High-Ram emulation system tests to + Gridmix. (Vinay Kumar Thota via amarrk) + + MAPREDUCE-2104. [Rumen] Add Cpu, Memory and Heap usages to + TraceBuilder's output. (amarrk) + + MAPREDUCE-2554. [Gridmix] Add distributed cache emulation system tests + to Gridmix. (Vinay Kumar Thota via amarrk) + + MAPREDUCE-2543. [Gridmix] High-Ram feature emulation testcase. (amarrk) + + MAPREDUCE-2469. Task counters should also report the total heap usage of + the task. (Ravi Gummadi and Amar Ramesh Kamat via amarrk) + + MAPREDUCE-2544. [Gridmix] Add compression emulation system tests to + Gridmix. (Vinay Kumar Thota via amarrk) + + MAPREDUCE-2517. [Gridmix] Add system tests to Gridmix. + (Vinay Kumar Thota via amarrk) + + MAPREDUCE-2492. The new MapReduce API should make available task's + progress to the task. (amarrk) + + MAPREDUCE-2153. Bring in more job configuration properties in to the trace + file. (Rajesh Balamohan via amarrk) + + MAPREDUCE-1461. Feature to instruct rumen-folder utility to skip jobs worth + of specific duration. (Rajesh Balamohan via amarrk) + + MAPREDUCE-2172. Added test-patch.properties required by test-patch.sh + (nigel) + + MAPREDUCE-2156. Raid-aware FSCK. (Patrick Kling via dhruba) + + MAPREDUCE-2215. A more elegant FileSystem#listCorruptFileBlocks API + (RAID changes) (Patrick Kling via hairong) + + MAPREDUCE-1831. BlockPlacement policy for HDFS-RAID. + (Scott Chen via dhruba) + + MAPREDUCE-1906. Lower minimum heartbeat interval for TaskTracker + (Scott Carey and Todd Lipcon via todd) + + MAPREDUCE-1382. MRAsyncDiscService should tolerate missing local.dir. + (Zheng Shao and tomwhite via tomwhite) + + MAPREDUCE-2263. MapReduce side of HADOOP-6904: RPC compatibility. + (hairong) + + MAPREDUCE-1706. Log RAID recoveries on HDFS. (schen) + + MAPREDUCE-2334. Update BlockPlacementPolicyRaid for the new method + in BlockPlacementPolicy. (szetszwo) + + MAPREDUCE-2254. Allow setting of end-of-record delimiter for + TextInputFormat (Ahmed Radwan via todd) + + MAPREDUCE-1927. Unit test for HADOOP-6835 (concatenated gzip support). + (Greg Roelofs via tomwhite) + + MAPREDUCE-2206. The task-cleanup tasks should be optional. (schen) + + MAPREDUCE-2225. MultipleOutputs should not require the use of 'Writable'. + (Harsh J Chouraria via tomwhite) + + MAPREDUCE-1811. Job.monitorAndPrintJob() should print status of the job + at completion. (Harsh J Chouraria via tomwhite) + + MAPREDUCE-993. bin/hadoop job -events <jobid> <from-event-#> <#-of-events> + help message is confusing. (Harsh J Chouraria via tomwhite) + + MAPREDUCE-2302. Add static factory methods in GaloisField. (schen) + + MAPREDUCE-2351. mapred.job.tracker.history.completed.location should + support an arbitrary filesystem URI. (tomwhite) + + MAPREDUCE-2239. BlockPlacementPolicyRaid should call getBlockLocations + only when necessary. (schen) + + MAPREDUCE-2331. Add coverage of task graph servlet to fair scheduler system + test. (todd) + + MAPREDUCE-2367. Allow using a file to exclude certain tests from build. + (todd) + + MAPREDUCE-2202. Generalize CLITest structure and interfaces to faciliate + upstream adoption (e.g. for web or system testing). (cos) + + MAPREDUCE-2420. JobTracker should be able to renew delegation token over + HTTP (Boris Shkolnik via jitendra) + + MAPREDUCE-2474. Add docs to the new API Partitioner on how to access the + Job Configuration. (Harsh J Chouraria via todd) + + MAPREDUCE-2475. Disable IPV6 for junit tests. (suresh srinivas via mahadev) + + MAPREDUCE-2422. Removed unused internal methods from DistributedCache. + (tomwhite) + + MAPREDUCE-2456. Log the reduce taskID and associated TaskTrackers with + failed fetch notifications in the JobTracker log. + (Jeffrey Naisbitt via cdouglas) + + MAPREDUCE-869. Documentation for config to set map/reduce task environment + (Alejandro Abdelnur via todd) + + MAPREDUCE-2410. Add entry to streaming FAQ about how streaming reducers + receive keys. (Harsh J Chouraria via todd) + + MAPREDUCE-2499. MR part of HADOOP-7291. (eli) + + MAPREDUCE-2497. Missing spaces in error messages. (eli) + + MAPREDUCE-2502. JobSubmitter should use mapreduce.job.maps instead of + its deprecated equivalent. (eli via todd) + + MAPREDUCE-2381. JobTracker instrumentation not consistent about error + handling. (Philip Zeyliger via tomwhite) + + MAPREDUCE-2449. Allow for command line arguments when performing + "Run on Hadoop" action in Eclipse plugin. (Jeff Zemerick via todd) + + MAPREDUCE-2483. Remove duplication of jars between Hadoop subprojects + from build artifacts. (Eric Yang via omalley) + + MAPREDUCE-2372. TaskLogAppender mechanism shouldn't be set up in + log4j.properties (todd) + + MAPREDUCE-2516. Rename webinterface.private.actions to + mapreduce.jobtracker.webinterface.trusted (Ari Rabkin via todd) + + MAPREDUCE-2459. Cache HAR filesystem metadata. (Mac Yang via mahadev) + + HADOOP-7259. Contrib modules should include the build.properties from + the enclosing hadoop directory. (omalley) + + MAPREDUCE-2494. Order distributed cache deletions by LRU. (Robert Joseph + Evans via cdouglas) + + MAPREDUCE-2452. Makes the cancellation of delegation tokens happen in a + separate thread. (ddas) + + HADOOP-7106. Reorganize project SVN layout to "unsplit" the projects. + (todd, nigel) + + MAPREDUCE-2249. Check the reflexive property of Counters objects when + comparing equality. (Devaraj K via todd) + + MAPREDUCE-2623. Update ClusterMapReduceTestCase to use + MiniDFSCluster.Builder (Harsh J Chouraria via eli) + + MAPREDUCE-2602. Allow setting of end-of-record delimiter for + TextInputFormat for the old API. (Ahmed Radwan via todd) + + MAPREDUCE-2705. Permits parallel multiple task launches. + (Thomas Graves via ddas) + + MAPREDUCE-2489. Jobsplits with random hostnames can make the queue + unusable (jeffrey naisbit via mahadev) + + MAPREDUCE-2854. update INSTALL with config necessary run mapred on yarn. + (thomas graves via mahadev) + + MAPREDUCE-2701. app/Job.java needs UGI for the user that launched it. + (Robert Evans via mahadev) + + MAPREDUCE-2652. Enabled multiple NMs to be runnable on a single node by + making shuffle service port to be truely configurable. (Robert Evans via + vinodkv) + + MAPREDUCE-2735. Add an applications summary log to ResourceManager. + (Thomas Graves via acmurthy) + + MAPREDUCE-2697. Enhance CapacityScheduler to cap concurrently running + applications per-queue & per-user. (acmurthy) + Configuration changes: + add yarn.capacity-scheduler.maximum-am-resource-percent + + MAPREDUCE-2774. Add startup message to ResourceManager & NodeManager on + startup. (Venu Gopala Rao via acmurthy) + + MAPREDUCE-2655. Add audit logs to ResourceManager and NodeManager. (Thomas + Graves via acmurthy) + + MAPREDUCE-2864. Normalize configuration variable names for YARN. (Robert + Evans via acmurthy) + + MAPREDUCE-2690. Web-page for FifoScheduler. (Eric Payne via acmurthy) + + MAPREDUCE-2711. Update TestBlockPlacementPolicyRaid for the new namesystem + and block management APIs. (szetszwo) + + MAPREDUCE-2933. Change allocate call to return ContainerStatus for + completed containers rather than Container. (acmurthy) + + MAPREDUCE-2675. Reformat JobHistory Server main page to be more + useful. (Robert Joseph Evans via vinodkv). + + MAPREDUCE-2896. Simplify all apis to in + org.apache.hadoop.yarn.api.records.* to be get/set only. Added javadocs to + all public records. (acmurthy) + + MAPREDUCE-2676. MR-279: JobHistory Job page needs reformatted. (Robert Evans via + mahadev) + + MAPREDUCE-2899. Replace major parts of ApplicationSubmissionContext with a + ContainerLaunchContext (Arun Murthy via mahadev) + + MAPREDUCE-2966. Added ShutDown hooks for MRV2 processes so that they can + gracefully exit. (Abhijit Suresh Shingate via vinodkv) + + MAPREDUCE-2672. MR-279: JobHistory Server needs Analysis this job. + (Robert Evans via mahadev) + + MAPREDUCE-2965. Streamlined the methods hashCode(), equals(), compareTo() + and toString() for all IDs. (Siddharth Seth via vinodkv) + + MAPREDUCE-2726. Added job-file to the AM and JobHistoryServer web + interfaces. (Jeffrey Naisbitt via vinodkv) + + MAPREDUCE-2880. Improve classpath-construction for mapreduce AM and + containers. (Arun C Murthy via vinodkv) + + MAPREDUCE-3055. Simplified ApplicationAttemptId passing to + ApplicationMaster via environment variable. (vinodkv) + + MAPREDUCE-3092. Removed a special comparator for JobIDs in JobHistory as + JobIDs are already comparable. (Devaraj K via vinodkv) + + MAPREDUCE-3099. Add docs for setting up a single node MRv2 cluster. + (mahadev) + + MAPREDUCE-3001. Added task-specific counters to AppMaster and JobHistory + web-UIs. (Robert Joseph Evans via vinodkv) + + MAPREDUCE-3098. Fixed RM and MR AM to report YarnApplicationState and + application's FinalStatus separately. (Hitesh Shah via vinodkv) + + MAPREDUCE-2889. Added documentation for writing new YARN applications. + (Hitesh Shah via acmurthy) + + MAPREDUCE-3134. Added documentation the CapacityScheduler. (acmurthy) + + MAPREDUCE-3013. Removed YarnConfiguration.YARN_SECURITY_INFO and its usage + as it doesn't affect security any more. (vinodkv) + + MAPREDUCE-2907. Changed log level for various messages in ResourceManager + from INFO to DEBUG. (Ravi Prakash via vinodkv) + + MAPREDUCE-2702. Added a new API in OutputCommitter for recovering + the outputs of tasks from a crashed job so as to support MR Application + Master recovery. (Sharad Agarwal and Arun C Murthy via vinodkv) + + MAPREDUCE-2738. Added the missing cluster level statistics on the RM web + UI. (Robert Joseph Evans via vinodkv) + + MAPREDUCE-2988. Reenabled TestLinuxContainerExecutor reflecting the + current NodeManager code. (Robert Joseph Evans via vinodkv) + + MAPREDUCE-3161. Improved some javadocs and fixed some typos in + YARN. (Todd Lipcon via vinodkv) + + MAPREDUCE-3148. Ported MAPREDUCE-2702 to old mapred api for aiding task + recovery. (acmurthy) + + MAPREDUCE-3133. Running a set of methods in a Single Test Class. + (Jonathan Eagles via mahadev) + + MAPREDUCE-3059. QueueMetrics do not have metrics for aggregate + containers-allocated and aggregate containers-released. + (Devaraj K via mahadev) + + MAPREDUCE-3187. Add names for various unnamed threads in MR2. + (Todd Lipcon and Siddharth Seth via mahadev) + + MAPREDUCE-3136. Added documentation for setting up Hadoop clusters in both + non-secure and secure mode for both HDFS & YARN. (acmurthy) + + MAPREDUCE-3068. Added a whitelist of environment variables for containers + from the NodeManager and set MALLOC_ARENA_MAX for all daemons and + containers. (Chris Riccomini via acmurthy) + + MAPREDUCE-3144. Augmented JobHistory with the information needed for + serving aggregated logs. (Siddharth Seth via vinodkv) + + MAPREDUCE-3163. JobClient spews errors when killing MR2 job. + (mahadev) + + MAPREDUCE-3239. Use new createSocketAddr API in MRv2 to give better + error messages on misconfig (Todd Lipcon via mahadev) + + MAPREDUCE-2747. Cleaned up LinuxContainerExecutor binary sources and changed + the configuration to use yarn names. (Robert Joseph Evans via vinodkv) + + MAPREDUCE-3205. Fix memory specifications to be physical rather than + virtual, allowing for a ratio between the two to be configurable. (todd + via acmurthy) + + MAPREDUCE-2986. Fixed MiniYARNCluster to support multiple NodeManagers. + (Anupam Seth via vinodkv) + + MAPREDUCE-2736. Remove unused contrib components dependent on MR1. (eli) + + MAPREDUCE-2989. Modified JobHistory to link to task and AM logs from the + JobHistoryServer. (Siddharth Seth via vinodkv) + + MAPREDUCE-3014. Rename and invert logic of '-cbuild' profile to 'native' and off + by default. (tucu) + + MAPREDUCE-3171. normalize nodemanager native code compilation with common/hdfs + native. (tucu) + + MAPREDUCE-3146. Added a MR specific command line to dump logs for a + given TaskAttemptID. (Siddharth Seth via vinodkv) + + MAPREDUCE-3275. Added documentation for AM WebApp Proxy. (Robert Evans via + acmurthy) + + MAPREDUCE-3322. Added a better index.html and an brief overview of YARN + architecture. (acmurthy) + + OPTIMIZATIONS + + MAPREDUCE-2026. Make JobTracker.getJobCounters() and + JobInProgress.getCounters() aquire locks in a shorter time period. + (Joydeep Sen Sarma via schen) + + MAPREDUCE-2740. MultipleOutputs in new API creates needless + TaskAttemptContexts. (todd) + + MAPREDUCE-901. Efficient framework counters. (llu via acmurthy) + + MAPREDUCE-2629. Workaround a JVM class loading quirk which prevents + JIT compilation of inner classes methods in ReduceContextImpl. + + BUG FIXES + + MAPREDUCE-2603. Disable High-Ram emulation in system tests. + (Vinay Kumar Thota via amarrk) + + MAPREDUCE-2539. Fixed NPE in getMapTaskReports in JobClient. (Robert Evans via + acmurthy) + + MAPREDUCE-1978. Rumen TraceBuilder should provide recursive + input folder scanning. + + MAPREDUCE-2416. Remove the restriction of specifying group names in + users-list file for Gridmix in RoundRobinUserResolver mode. + + MAPREDUCE-2417. Fix Gridmix in RoundRobinUserResolver mode to + map testing/proxy users to unique users in a trace. + + MAPREDUCE-2307. Exception thrown in Jobtracker logs, when the Scheduler + configured is FairScheduler. (Devaraj K via matei) + + MAPREDUCE-2199. build is broken 0.22 branch creation. (cos) + + MAPREDUCE-1752. Implement getFileBlockLocations in HarFilesystem. + (Patrick Kling via dhruba) + + MAPREDUCE-2155. RaidNode should optionally use the mapreduce jobs to + fix missing blocks. (Patrick Kling via dhruba) + + MAPREDUCE-1334. Fix TestIndexUpdater by ignoring _SUCCESS file in HDFS. + (Kay Kay via yhemanth) + + MAPREDUCE-2232. Add missing methods to TestMapredGroupMappingServiceRefresh. + (Todd Lipcon via eli) + + MAPREDUCE-2271. Fix TestSetupTaskScheduling failure on trunk. + (Liyin Liang via todd) + + MAPREDUCE-2290. Fix compilation error in TestTaskCommit. (eli) + + MAPREDUCE-2294. Fix compilation error in mumak. (todd) + + MAPREDUCE-2300. Fix TestUmbilicalProtocolWithJobToken on trunk after + HADOOP-6904. (todd) + + MAPREDUCE-2296. Fix references to misspelled method name + getProtocolSigature (todd) + + MAPREDUCE-2311. Fix TestFairScheduler failure (schen) + + MAPREDUCE-1996. API: Reducer.reduce() method detail misstatement. + (Harsh J Chouraria via tomwhite) + + MAPREDUCE-2203. Wrong javadoc for TaskRunner's appendJobJarClasspaths + method. (Jingguo Yao via tomwhite) + + MAPREDUCE-2074. Task should fail when symlink creation fails. + (Priyo Mustafi via tomwhite) + + MAPREDUCE-1242. Chain APIs error misleading. + (Harsh J Chouraria via tomwhite) + + MAPREDUCE-2379. Adds missing DistributedCache configurations in + mapred-default.xml (Todd Lipcon via amareshwari) + + MAPREDUCE-2348. Disable mumak tests on trunk since they currently time out + (todd) + + MAPREDUCE-2395. TestBlockFixer timing out on trunk. (Ramkumar Vadali via + todd) + + MAPREDUCE-2426. Make TestFairSchedulerSystem fail with more verbose output + (todd) + + MAPREDUCE-2448. NoSuchMethodError: + org.apache.hadoop.hdfs.TestDatanodeBlockScanner.corruptReplica(..) (eli) + + MAPREDUCE-2460. Fix flaky test TestFairSchedulerSystem. (todd) + + MAPREDUCE-2451. Log the details from health check script at the + JobTracker. (Thomas Graves via cdouglas) + + MAPREDUCE-2467. HDFS-1052 changes break the raid contrib module in + MapReduce. (suresh srinivas via mahadev) + + MAPREDUCE-2258. IFile reader closes stream and compressor in wrong order. + (todd via tomwhite) + + MAPREDUCE-2518. The t flag is missing in distcp help message. (Wei Yongjun + via szetszwo) + + MAPREDUCE-2514. Fix typo in TaskTracker ReinitTrackerAction log message. + (Jonathan Eagles via cdouglas) + + MAPREDUCE-2490. Add logging to graylist and blacklist activity to aid + diagnosis of related issues. (Jonathan Eagles via cdouglas) + + MAPREDUCE-2495. exit() the TaskTracker when the distributed cache cleanup + thread dies. (Robert Joseph Evans via cdouglas) + + MAPREDUCE-2470. Fix NPE in RunningJobs::getCounters. (Robert Joseph Evans + via cdouglas) + + MAPREDUCE-2536. Update FsShell -mv command usage in TestMRCLI. (Daryn + Sharp via szetszwo) + + MAPREDUCE-2529. Add support for regex-based shuffle metric counting + exceptions. (Thomas Graves via cdouglas) + + MAPREDUCE-2559. ant binary fails due to missing c++ lib dir. (eli) + + MAPREDUCE-2573. Fix new findbugs warning introduced by MAPREDUCE-2494. + (Robert Joseph Evans via todd) + + MAPREDUCE-2581. Spelling errors in log messages. (Tim Sell via eli) + + MAPREDUCE-2588. Change raid to the new DataTransferProtocol API. (szetszwo) + + MAPREDUCE-2576. Typo in comment in SimulatorLaunchTaskAction.java. + (Tim Sell via jghoman) + + MAPREDUCE-2550. Fix bin/mapred to work properly from within a source + checkout (Eric Yang via todd) + + MAPREDUCE-2620. Update RAID for HDFS-2087. (szetszwo) + + MAPREDUCE-2624. Update RAID for HDFS-2107. (szetszwo) + + MAPREDUCE-2670. Fixing spelling mistake in FairSchedulerServlet.java. (eli) + + MAPREDUCE-2710. Update JobSubmitter.printTokens(..) for HDFS-2161. + (szetszwo) + + MAPREDUCE-2409. DistributedCache maps files and archives to the same path, + despite semantic incompatibility. (Siddharth Seth via cdouglas) + + MAPREDUCE-2575. TestMiniMRDFSCaching fails if test.build.dir is set + to something other than build/test (Thomas Graves via mahadev) + + MAPREDUCE-2622. Remove the last remaining reference to the deprecated + configuration "io.sort.mb". (Harsh J Chouraria via todd) + + MAPREDUCE-2732. Remove directly accessing FSNamesystem.LOG from + TestCopyFiles and TestDistCh. (szetszwo) + + MAPREDUCE-2463. Job history files are not moved to done folder when job + history location is hdfs. (Devaraj K via szetszwo) + + MAPREDUCE-2243. Close streams propely in a finally-block to avoid leakage + in CompletedJobStatusStore, TaskLog, EventWriter and TotalOrderPartitioner. + (Devaraj K via szetszwo) + + MAPREDUCE-2741. Make ant build system work with hadoop-common JAR + generated by Maven. (Alejandro Abdelnur via tomwhite) + + MAPREDUCE-2760. mapreduce.jobtracker.split.metainfo.maxsize typoed + in mapred-default.xml. (todd via eli) + + MAPREDUCE-2797. Update mapreduce tests and RAID for HDFS-2239. (szetszwo) + + MAPREDUCE-2805. Update RAID for HDFS-2241. (szetszwo) + + MAPREDUCE-2837. Ported bug fixes from y-merge to prepare for MAPREDUCE-279 + merge. (acmurthy) + + MAPREDUCE-2541. Fixed a race condition in IndexCache.removeMap. (Binglin + Chang via acmurthy) + + MAPREDUCE-2458. Rename sanitized pom.xml in build directory to work around IDE + bug (Luke Lu via mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Clear application notification if sent once + to NodeManager (mahadev) + + MAPREDUCE-2433. YARNApplicationConstants hard code app master jar version (Luke + Lu via mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Implement restart for resource manager + phase 1 - Helper classes to store and restore the data structures. (mahadev) + + MAPREDUCE-2414. Change MRv2 to use generic interfaces. (Siddharth Seth via + acmurthy) + + MAPREDUCE-279. Fix in MR-279 branch. Implement health-checks for the node - + server side(ResourceManager) changes. (vinodkv) + + MAPREDUCE-2405: Implement uber-AppMaster (in-cluster LocalJobRunner for MRv2) + (Greg Roelofs via mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Implementing Containers' memory monitoring. + (vinodkv) + + MAPREDUCE-2440. Name clashes in TypeConverter (luke via mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Add fail count to the command line of the + application master. (mahadev) + + MAPREDUCE-2424. Polish uber-AppMaster: add uber-AM counters and GUI indicators. + (Greg Roelofs via mahadev) + + MAPREDUCE-2405. Implement uber-AppMaster (in-cluster LocalJobRunner for MRv2). + (Greg Roelofs and Sharad Agarwal via mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Fix YarnRemoteException to give more + details. (Siddharth Seth via mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. WebApp for Job History (Krishna + Ramachandran via mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Install sanitized poms for downstream + sanity (Luke Lu via mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Add HistoryCleanerService to Job History + server. (Krishna Ramachandran via sharad) + + MAPREDUCE-279. Fix in MR-279 branch. Implement 'bin/mapred job -list' and + 'bin/mapred job -list-active-trackers'. (acmurthy) + + MAPREDUCE-279. Fix in MR-279 branch. Implement 'bin/mapred queue [-info + [-showJobs]] [-list] and enhanced 'bin/mapred job -list' to show queue and + ApplicationMaster information. (acmurthy) + + MAPREDUCE-279. Fix in MR-279 branch. Fixed computation of user-limits at + runtime. (acmurthy) + + MAPREDUCE-279. Fix in MR-279 branch. Added functionality to refresh queues at + runtime via the 'bin/yarn rmadmin' command. (acmurthy) + + MAPREDUCE-279. Fix in MR-279 branch. Added functionality to stop/start queues. + (acmurthy) + + MAPREDUCE-279. Fix in MR-279 branch. Introducing web-UI for NodeManager and + linking it from RM UI. (vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Fix race condition in TestJobHistoryEvents + and TestJobHistoryParsing. (sharad) + + MAPREDUCE-279. Fix in MR-279 branch. Add Containers' logs' view to NM UI and + link it from AM UI. (vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Add ACLs for queues and command-line + utilities for viewing them. (acmurthy) + + MAPREDUCE-279. Fix in MR-279 branch. Recovery of MR Application Master from + failures. (sharad) + + MAPREDUCE-279. Fix in MR-279 branch. Added support High-RAM applications in + CapacityScheduler. (acmurthy) + + MAPREDUCE-279. Fix in MR-279 branch. Completing the ZooKeeper Store for + ResourceManager state. (mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Reorient container localization to be + per-container rather than per-application. (cdouglas) + + MAPREDUCE-279. Fix in MR-279 branch. Fix file creation in + JobHistoryEventHandler. (sharad) + + MAPREDUCE-279. Fix in MR-279 branch. Disable ContainerMonitoring for non-linux + systems. (vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Fix container launch w/ inconsistent + credential file naming. (cdouglas) + + MAPREDUCE-2434. Metrics for ResourceManager. (Luke Lu via acmurthy) + + MAPREDUCE-279. Fix in MR-279 branch. RM Restart Phase 2 - Completed the recovery + of components in the RM (mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Fix to send finish application event only + when the application is finished (mahadev) + + MAPREDUCE-2462. Write job conf along with JobHistory, other minor improvements. + (Siddharth Seth via sharad) + + MAPREDUCE-279. Fix in MR-279 branch. Implement 'delay scheduling' for better + locality in CapacityScheduler and improved high-ram applications. (acmurthy) + + MAPREDUCE-279. Fix in MR-279 branch. Implement Job Acls in MR Application + Master. (sharad) + + MAPREDUCE-279. Fix in MR-279 branch. Moving userlogs out of container work-dir + into a separate directory structure. (vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Completing RM Restart. Completed Phase 3 of + making sure events are logged and restored (mahadev) + + MAPREDUCE-2468. Add metrics for NM Shuffle. (Luke Lu via cdouglas) + + MAPREDUCE-279. Fix in MR-279 branch. Adding user log handling for YARN. Making + NM put the user-logs on DFS and providing log-dump tools. (vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Fixing three tight-loops in RM that are + causing high cpu-usage. (vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Replacing FileContext usage with FileSystem + to work around security authentication issues with FileContext against a secure + DFS. (vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Client reconnect to restarted AM. (sharad) + + MAPREDUCE-279. Fix in MR-279 branch. Fix refreshProxy in ClientServiceDelegate. + (sharad) + + MAPREDUCE-279. Fix in MR-279 branch. Fix Null Pointer in TestUberAM. (sharad) + + MAPREDUCE-2478. Improve history server. (Siddharth Seth via sharad) + + MAPREDUCE-279. Fix in MR-279 branch. Improved TestJobHistoryEvents and + TestJobHistoryParsing. (sharad) + + MAPREDUCE-279. Fix in MR-279 branch. Fix NM to use multiple disks for local + files and the userlogs. (vinodkv) + + MAPREDUCE-2480: MR App should not depend on hard coded version of shuffle (luke + lu via mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Propagate error back to client in case of a + job submission failure (mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Fix assembly to add mapreduce shell scripts + to the assembly package. (mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Fix TestQueueMetrics. (Luke Lu via sharad) + + MAPREDUCE-279. Fix in MR-279 branch. Removal of stale application-log dirs from + NM local disks. (vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Add license header and minor cleanup in + history server. (Siddharth Seth via sharad) + + MAPREDUCE-279. Fix in MR-279 branch. Minor fix for install instructions. + (mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Fix a race in MR task that was causing MR + containers to overwrite each other's job.xml. Also fix leaking attempt-dirs in + app-local-dir. (vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Adding valid state to ASM on a finish when + its already completed and also disble UberAM. (mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Fixed CS user limits. (acmurthy) + + MAPREDUCE-279. Fix in MR-279 branch. Fixed reservation's bad interaction with + delay scheduling in CS. (acmurthy) + + MAPREDUCE-279. Fix in MR-279 branch. Support mapreduce old (0.20) APIs. (sharad) + + MAPREDUCE-279. Fix in MR-279 branch. Support fail-fast for MR jobs. (ddas) + + MAPREDUCE-279. Fix in MR-279 branch. Fix for clearing container requests on an + AM failure and add tostring methods to taskids and taskattemptids for better + grep support. (mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Speed up communication between MR AM and RM + by relying on a new config rather than AM_EXPIRY_INTERVAL which is too large. + (acmurthy) + + MAPREDUCE-279. Fix in MR-279 branch. Fix calculation of maximum capacity to use + parent's absolute-capacity rather than the leaf queue's absolute-capacity. + (acmurthy) + + MAPREDUCE-279. Fix in MR-279 branch. Fixing a bug in JobIDPbImpl that's causing + AM to crash randomly. (vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Fix calculation of maximum capacity in + ParentQueue to use its parent's absolute-capacity rather than its own + absolute-capacity. (acmurthy) + + MAPREDUCE-279. Fix in MR-279 branch. Launching bin/yarn and bin/mapred only + *once* in AM for constructing classpaths to avoid multiple forks and huge vmem + usage by AM. (vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Fix CapacityScheduler to release unused + reservations on application completion. (acmurthy) + + MAPREDUCE-279. Fix in MR-279 branch. Fix CapacityScheduler (LeafQueue) to not + allocate DATA_LOCAL containers when they are not required on the rack. + (acmurthy) + + MAPREDUCE-279. Fix in MR-279 branch. Makes uber-task disabled by default (ddas) + + MAPREDUCE-279. Fix in MR-279 branch. Make logging and memory for AM configurable + for the user via command line (mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Fixing a bug in previous patch (r1103657). + Now bin/yarn truly shouldn't be launched multiple times in a single AM. + (vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Fixing a bug to do with setting the staging + dir. (ddas) + + MAPREDUCE-279. Fix in MR-279 branch. Fixed Composite Service to shutdown + services if an error occurs on starting any one of those (mahadev & chris) + + MAPREDUCE-279. Fix in MR-279 branch. Fix the tests to use jvm fork mode to avoid + errors in shutting down services (sidharth seth) + + MAPREDUCE-2500. PB factories are not thread safe (Siddharth Seth via mahadev) + + MAPREDUCE-2504. race in JobHistoryEventHandler stop (Siddharth Seth via mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Fix job hang if the AM launch fails. + (mahadev) + + MAPREDUCE-2509. Fix NPE in UI for pending attempts. (Luke Lu via mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Add junit jar to lib in assembly (mahadev + and luke) + + MAPREDUCE-279. Fix in MR-279 branch. Distributed cache bug fix to pass Terasort. + (vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Fix null pointer exception in kill task + attempt (mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Refactored RMContainerAllocator to release + unused containers. (sharad) + + MAPREDUCE-279. Fix in MR-279 branch. Changed Scheduler to return available limit + to AM in the allocate api. (acmurthy) + + MAPREDUCE-279. Fix in MR-279 branch. Fix nodemanager expiry to not throw OOM. + (mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Use DefaultContainerExecutor for + integration tests. (cdouglas) + + MAPREDUCE-279. Fix in MR-279 branch. Fix NPE in test case (mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Fix for regression on the scheduling of + reduces before maps are done (ddas) + + MAPREDUCE-279. Fix in MR-279 branch. Fix distributed-cache related bugs. + (vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Ensure unused containers released by AM are + correctly counted for queue-capacity. (acmurthy) + + MAPREDUCE-279. Fix in MR-279 branch. Fix TestRuntimeEstimators (Siddharth Seth + via ddas) + + MAPREDUCE-279. Fix in MR-279 branch. Fix queue refresh to correctly record newly + added queues in CapacityScheduler. (acmurthy) + + MAPREDUCE-279. Fix in MR-279 branch. Added metrics for tracking reservations in + CapacityScheduler. (Luke Lu via acmurthy) + + MAPREDUCE-2522. Security for JobHistory service. (Siddharth Seth via mahadev) + + MAPREDUCE-2534. Fix CI breaking hard coded version in jobclient pom. (Luke Lu + via mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Add public cache. (cdouglas) + + MAPREDUCE-279. Fix in MR-279 branch. Made number of RPC server threads + configurable. (acmurthy) + + MAPREDUCE-279. Fix in MR-279 branch. Added acl check for RMAdmin. (acmurthy) + + MAPREDUCE-279. Fix in MR-279 branch. Adding job kill for any state that the job + is in with access control. (mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Add debug statements for AM not launching + (mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Fixing race condition leader to hung jobs + in scheduler negotiator (mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Add debug config for delaying delete of + local files. (cdouglas) + + MAPREDUCE-2527. Metrics for MRAppMaster (Luke lu via mahadev) + + MAPREDUCE-2532. Metrics for NodeManager (Luke Lu via mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Fixed an NPE during handling of unnecessary + reservations in CS. (acmurthy) + + MAPREDUCE-279. Fix in MR-279 branch. Fix for public dist cache to work with non + default hdfs (mahadev &ddas) + + MAPREDUCE-279. Fix in MR-279 branch. Making streaming -file option work. Also + minor fixes for successful compilation of contrib tests. (vinodkv) + + MAPREDUCE-2536. Backporting changes to MR-279. + + MAPREDUCE-279. Fix in MR-279 branch. Bugfix for using user staging directory for + history files (Siddharth Seth via mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. First fix for making basic speculative + execution work (ddas) + + MAPREDUCE-279. Fix in MR-279 branch. Fixes for TestFail/Kill (ddas) + + MAPREDUCE-279. Fix in MR-279 branch. Set correct version of avro-maven-plugin + that is available in apache maven repositories. (vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Fixing and reneabling + TestContainerTokenSecretManager. (vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Cleaning up configuration constants in + mapreduce modules. (vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Fixing NPE on speculator in MRAppMaster and + making job-history optional in tests to make test goal succeed. (vinodk and + sharadag). + + MAPREDUCE-279. Fix in MR-279 branch. Fixed NPE in CS by checking Application + state before scheduling and fixing synchronization in CS. (acmurthy) + + MAPREDUCE-279. Fix in MR-279 branch. Making pipes work with YARN. Changed pipes + to get log-locations from an environmental variable. (vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Ensure 'lost' NodeManagers are dealt + appropriately, the containers are released correctly. (acmurthy) + + MAPREDUCE-279. Fix in MR-279 branch. Adding some more logging for AM expiry logs + (mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Reduce ramp up and zero maps support. + (sharad) + + MAPREDUCE-279. Fix in MR-279 branch. Allowing hdfs calls from streaming/pipes + tasks. (vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Added ability to decommission nodes and + completed RM administration tools to achieve parity with JobTracker. (acmurthy) + + MAPREDUCE-2551. Added JobSummaryLog. (Siddharth Seth via acmurthy) + + MAPREDUCE-2552. Fixed NPE in CompletedJob in JobHistoryServer. (Siddharth Seth + via acmurthy) + + MAPREDUCE-279. Fix in MR-279 branch. Fix reduce slow start. (sharad) + + MAPREDUCE-279. Fix in MR-279 branch. Fixed TestFifoScheduler. (acmurthy) + + MAPREDUCE-279. Fix in MR-279 branch. Fix build issue for using yarn.version + instead of hadoop-mapred.version (mahadev and giri) + + MAPREDUCE-279. Fix in MR-279 branch. Fixes in the handling of KILL events in the + SUCCEEDED state for tasks in the application master (ddas) + + MAPREDUCE-279. Fix in MR-279 branch. Fix for NPE in TestRMNMRPCResponseId. + (mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Fix a deadlock in the resourcemanager. + (mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. NodeStatus.getNodeHealthStatus().setBlah + broken (Siddharth Seth) + + MAPREDUCE-279. Fix in MR-279 branch. Fix another NPE in TestRMNMRPCResponseId. + (mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Fix for NPE in TestNMExpiry (siddharth + seth) + + MAPREDUCE-279. Fix in MR-279 branch. Making each node aggregate all its + user-logs to a separate hdfs file. (vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Fix calculation of max-capacity for a + queue, also fixed a bug in registration of NodeManagers. (acmurthy) + + MAPREDUCE-279. Fix in MR-279 branch. More cleaning up constants, removing stale + code, and making conspicuous the envs that apps depend on to be provided by + YARN. (vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Fix container size rounding in AM and + headroom in RM. (acmurthy and sharad) + + MAPREDUCE-279. Fix in MR-279 branch. Disable Job acls until fixed (mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Fix to report job status if the application + is KILLED/FAILED. (mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Fix a corner case in headroom computation - + now reservations are taken into account and headroom is computed much later to + account for allocations/reservations. (acmurthy) + + MAPREDUCE-2537. The RM writes its log to + yarn-mapred-resourcemanager-<RM_Host>.out (Robert Evans via mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Fix logging for showing the state of job + (FAILED/KILLED/SUCCEEDED) when it completes (mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Re-enabled TestCapacityScheduler. + (acmurthy) + + MAPREDUCE-279. Fix in MR-279 branch. Support for min and max container capacity. + (acmurthy and sharad) + + MAPREDUCE-2531. Fixed jobcontrol to downgrade JobID. (Robert Evans via acmurthy) + + MAPREDUCE-2539. Fixed NPE in getMapTaskReports in JobClient. (Robert Evans via + acmurthy) + + MAPREDUCE-279. Fix in MR-279 branch. Fixing the wrong config key used in + JobHistory that prevented configuring move-thread interval. (vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Fixed inconsistency in QueueACL enums. + (acmurthy) + + MAPREDUCE-279. Fix in MR-279 branch. Fix various issues with Web UI's. (Luke Lu) + + MAPREDUCE-279. Fix in MR-279 branch. Fix class cast exception in Task abort for + old mapreduce apis. (sharad) + + MAPREDUCE-279. Fix in MR-279 branch. Add deletion of distributed cache + resources. (cdouglas) + + MAPREDUCE-279. Fix in MR-279 branch. Disable aggregation of logs onto DFS till + JobHistoryServer starts serving logs. (vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Cleanup redundant code in TaskAttemptImpl. + (sharad) + + MAPREDUCE-279. Fix in MR-279 branch. Work around broken signaling in public + cache. (cdouglas) + + MAPREDUCE-2566. YarnConfiguration should reloadConfiguration if instantiated + with a non YarnConfiguration object. (Siddharth Seth) + + MAPREDUCE-279. Fix in MR-279 branch. Fully resolve paths when launching + containers. (Siddharth Seth) + + MAPREDUCE-279. Fix in MR-279 branch. Re-enabling Uber-AM feature. (vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Fixed deadlock during expiring NMs. + (acmurthy) + + MAPREDUCE-279. Fix in MR-279 branch. Solving NPEs during + ContainerManager#StopContainer. Also removing the unused + ContainerManager#CleanupContainer api. (vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Remove retries in dist cache so that NM's + do not shutdown (mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Fix classpath construction for Task. + (vinodkv via sharad) + + MAPREDUCE-279. Fix in MR-279 branch. Sending Job diagnostics from AM to RM and + redirect to history-url on job completion. (vinodkv and sharadag) + + MAPREDUCE-279. Fix in MR-279 branch. Added clover in pom dependency. (sharad) + + MAPREDUCE-279. Fix in MR-279 branch. Intermittent TestMRApp failures on faster + Linux desktop. (Luke lu via mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Including source files in release + distribution (Luke Lu via mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Intermittent TestMRApp failures on faster + Linux desktop (part 2) (Luke lu via mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Disable Uber AM. (mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Added few job diagnostic messages. (sharad) + + MAPREDUCE-279. Fix in MR-279 branch. Add ability to includes src files in + assembly target for maven (Luke Lu via mahadev) + + MAPREDUCE-2582. Cleanup JobHistory event generation.(Siddharth Seth via sharad) + + MAPREDUCE-279. Fix in MR-279 branch. Fix rounding off problem in reduce ramp up. + (sharad) + + MAPREDUCE-279. Fix in MR-279 branch. Fix more rounding off problems in reduce + ramp up. Also fix a bug preventing the application of the cap on reduce ramp-up. + (Sharad Agarwal via vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Fix to exclude images dir into the tar + distribution (Luke Lu via gkesavan) + + MAPREDUCE-279. Fix in MR-279 branch. Changes a couple of usages of FileContext + to FileSystem in YarnRunner to handle distributed cache path resolutions on + non-default filesystems. (ddas) + + MAPREDUCE-279. Fix in MR-279 branch. Display failed/killed attempts of the task + on MR AM UI separately. (vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Miscellaneous UI fixes + source code + formatting for MR JobHistoryEventHandler. (vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Fixing broken link to logs for container on + NM web UI. (vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Fixing the bug which was causing FAILED + jobs to be displayed as COMPLETED on the RM UI. (vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Job level node blacklisting. (sharad) + + MAPREDUCE-279. Fix in MR-279 branch. Fix NPE in history event handling + (Siddharth Seth via mahadev) + + MAPREDUCE-2569. Ensure root queue allocated 100% capacity. (Jonathan Eagles via + cdouglas) + + MAPREDUCE-279. Fix in MR-279 branch. Fix ClassCastException in JobHistoryServer + for certain jobs. (Siddharth Seth via llu) + + MAPREDUCE-279. Fix in MR-279 branch. Changes for invoking rack resolution in the + RM and in the AM (ddas) + + MAPREDUCE-279. Fix in MR-279 branch. Fix concurrent modification exception in + the Capacity Scheduler (mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Fix stopContainer for setsid challenged + platforms. (llu) + + MAPREDUCE-2587. Generate yarn version for UI. (Thomas Graves via lluts page to + the history server UI. (vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Bug fix to set correct state on containers + so as to avoid duplicate containers from RM to AM. (vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Hack until MAPREDUCE-2365 is fixed to make + PIG work with MRV2. (mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Changes a couple of usages of FileContext + to FileSystem in TaskAttemptImpl to handle distributed cache path resolutions on + non-default filesystems. (ddas) + + MAPREDUCE-279. Fix in MR-279 branch. Fix NPE when requesting attempts for + completed jobs. (Siddharth Seth via llu) + + MAPREDUCE-279. Fix in MR-279 branch. Improve logging for AM when requesting + containers to show the right ask and release fields (mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Fix race condition between multiple + localizers on a single node. (cdouglas via mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Fix RM app start/finish time and + diagnostics. (llu) + + MAPREDUCE-279. Fix in MR-279 branch. Fix to schedule reduces irrespective of the + headroom when all maps are done so as to avoid stall in reduce-scheduling when + slow-start is disabled. (Sharad Agarwal via vinodkv). + + MAPREDUCE-279. Fix in MR-279 branch. Disabling locality-wait in + CapacityScheduler for now to prevent uber-slow scheduling for apps with no + data-locality constraints (sleep-job like). (vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Fixing scheduling deadlock in AM because of + incorrect headRoom values from RM. The bug happens when AM releases containers + and RM decrements current memory usage twice for all those containers. (vinodkv) + + MAPREDUCE-2611. Fix counters, finish times etc. in job history. (Siddharth Seth + via llu) + + MAPREDUCE-279. Fix in MR-279 branch. Fix for ConcurrentModification exception + while iterating through tokens in a UGI in ContainerLauncherImpl. (ddas) + + MAPREDUCE-279. Fix in MR-279 branch. Fix for NPE in YarnChild that was causing + lots of tasks to fail. (vinodkv) + + MAPREDUCE-2615. Make killJob go through AM and fix JobSummaryLog. (Siddharth + Seth via llu) + + MAPREDUCE-279. Fix in MR-279 branch. Fix class cast exception in release + reserved containers in capacity scheduler (mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Fix diagnostics display for more than 100 + apps in RM. (llu) + + MAPREDUCE-279. Fix in MR-279 branch. Fix some invalid transitions in the RM. + (vinodkv via ddas) + + MAPREDUCE-2618. Fix NPE in 0 map 0 reduce jobs. (Jeffrey Naisbitt via llu) + + MAPREDUCE-2625. Add version info to nodemanager info page. (Jonathan Eagles via + llu) + + MAPREDUCE-279. Fix in MR-279 branch. (1) Faster retries from AM to HistoryServer + (2) Correct diagnostics for containers. (vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Major ASM cleanup. Streamlining classes, + interface and events. (vinodkv) + + MAPREDUCE-279. Fix in MR-279 branch. Reinstate resolve path fixes for viewfs. + (Siddharth Seth via llu) + + MAPREDUCE-2633. Add a getCounter(Enum) method to the Counters record. (Josh + Wills via sharad) + + MAPREDUCE-2645. Updates to MRv2 INSTALL and README documentation. (Josh Wills + via vinodkv) + + MAPREDUCE-2628. Add compiled on date to NM and RM info/about page. + + MAPREDUCE-2400. Remove Cluster's dependency on JobTracker via a ServiceProvider + for the actual implementation. (tomwhite via acmurthy) + + MAPREDUCE-2663. Refactoring StateMachineFactory inner classes. (ahmed radwan via + mahadev) + + MAPREDUCE-2678. minimum-user-limit-percent no longer honored. (naisbitt via + mahadev) + + MAPREDUCE-2630. refreshQueues leads to NPEs when used w/FifoScheduler. (Josh + Wills via mahadev) + + MAPREDUCE-2644. NodeManager fails to create containers when NM_LOG_DIR is not + explicitly set in the Configuration. (Josh Wills via vinodkv) + + MAPREDUCE-2661. Fix TaskImpl to not access MapTaskImpl. (Ahmed Radwan via + sharad) + + HADOOP-6929. Backport changes to MR-279 (mahadev and owen) + + HADOOP-6929. Making Security Info abstract and not an interface (mahadev) + + MAPREDUCE-2667. mapred job -kill leaves application in RUNNING state (thomas + graves via mahadev) + + MAPREDUCE-2664. Implement JobCounters for Mtions as asynchronous. (vinodkv, + sharad and acmurthy) + + MAPREDUCE-2773. server.api.records.NodeHealthStatus renamed but not updated in + client NodeHealthStatus.java (Thomas Graves via mahadev) + + MAPREDUCE-2772. Fix MR-279 build after common mavenization. (Robert Joseph Evans + via llu) + + MAPREDUCE-2772. Fix MR-279 build after common mavenization, part 2. (Thomas + Graves via llu) + + MAPREDUCE-279. Fix in MR-279 branch. Harmonize slf4j versions. (llu) + + MAPREDUCE-279. Fix in MR-279 branch. Fix NPE in FifoScheduler. (mahadev) + + MAPREDUCE-2776. Fix some of the yarn findbug warnings. (Siddharth Seth via + mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Fix findbugs warnings in mr-client modules, + part 1 (mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Fix findbugs warnings in mr-client modules + part 2 (mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Fix findbugs warnings in mr-client modules + part 3 (mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Fix the poms to enable 0.23 snapshots for + hdfs/common from apache nightly builds (gkesavan) + + MAPREDUCE-279. Fix in MR-279 branch. Fix ivy conf to work with the hadoop common + trunk maven build changes. (Giridharan Kesavan) + + MAPREDUCE-279. Fix in MR-279 branch. Patch for findbugs warnings in Resource + Manager (Siddharth Seth via mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Fix for running ant targets to use the + right set of common/test jars (gkesavan via mahadev) + + MAPREDUCE-2782. Unit tests for CapacityScheduler. (acmurthy) + + MAPREDUCE-2706. Log job submission failures. (Jeffrey Naisbitt via acmurthy) + + MAPREDUCE-2781. mr279 RM application finishtime not set (Thomas Graves via + mahadev) + + MAPREDUCE-279. Fix in MR-279 branch. Fixed CS locality wait factor. (acmurthy) + + MAPREDUCE-2808. pull MAPREDUCE-2797 into mr279 branch (Thomas Graves via + mahadev) + + MAPREDUCE-2639. Bug fixes in speculate.DataStatistics. (Josh Wills via acmurthy) + + MAPREDUCE-2839. Fixed TokenCache to get delegation tokens using both new and old + apis. (Siddharth Seth via acmurthy) + + MAPREDUCE-2727. Fix divide-by-zero error in SleepJob for sleepCount equals 0. + (Jeffrey Naisbitt via acmurthy) + + MAPREDUCE-2839. Fixed TokenCache to get delegation tokens using both new + and old apis. (Siddharth Seth via acmurthy) + + MAPREDUCE-2727. Fix divide-by-zero error in SleepJob for sleepCount equals + 0. (Jeffrey Naisbitt via acmurthy) + + MAPREDUCE-2860. Fix log4j logging in the maven test cases. (mahadev) + + MAPREDUCE-2867. Remove Unused TestApplicaitonCleanup in resourcemanager/applicationsmanager. + (mahadev) + + MAPREDUCE-2868. ant build broken in hadoop-mapreduce dir (mahadev, giri and arun via mahadev) + + MAPREDUCE-2649. Handling of finished applications in RM. (Thomas Graves + via acmurthy) + + MAPREDUCE-2838. Fix MapReduce builds to use new hadoop-common test jars. + (gkesavan via acmurthy) + + MAPREDUCE-2859. Fix eclipse plugin contrib module compilation (gkesavan) + + MAPREDUCE-2846. Fix missing synchronization in the task log management. + (omalley) + + MAPREDUCE-2807. Fix AM restart and client redirection. (sharad) + + MAPREDUCE-2877. Add missing Apache license header in some files in MR + and also add the rat plugin to the poms. (mahadev) + + MAPREDUCE-2796. Set start times for MR applications for clients to see. + (Devaraj K via acmurthy) + + MAPREDUCE-2879. Fix version for MR-279 to 0.23.0. (acmurthy) + + MAPREDUCE-2881. Fix to include log4j 1.2.16 depenency (gkesavan) + + MAPREDUCE-2885. Fix mapred-config.sh to look for hadoop-config.sh in + HADOOP_COMMON_HOME/libexec. (acmurthy) + + MAPREDUCE-2893. Remove duplicate entry of YarnClientProtocolProvider in + ClientProtocolProvider services file. (Liang-Chi Hsieh via acmurthy) + + MAPREDUCE-2891. Javadoc for AMRMProtocol and related records. (acmurthy) + + MAPREDUCE-2898. Javadoc for ContainerManager protocol and related records. + (acmurthy) + + MAPREDUCE-2904. Fixed bin/yarn to correctly include HDFS jars and + clean up of stale refs to pre-mavenized Hadoop Common and HDFS. + (Sharad Agarwal and Arun C. Murthy via acmurthy) + + MAPREDUCE-2737. Update the progress of jobs on client side. (Siddharth Seth + and Mahadev Konar via mahadev) + + MAPREDUCE-2886. Fix Javadoc warnings in MapReduce. (mahadev) + + MAPREDUCE-2897. Javadoc for ClientRMProtocol protocol and related records. + (acmurthy) + + MAPREDUCE-2916. Ivy build for MRv1 fails with bad organization for + common daemon. (mahadev) + + MAPREDUCE-2917. Fixed corner case in container reservation which led to + starvation and hung jobs. (acmurthy) + + MAPREDUCE-2756. Better error handling in JobControl for failed jobs. + (Robert Evans via acmurthy) + + MAPREDUCE-2716. MRReliabilityTest job fails because of missing + job-file. (Jeffrey Naisbitt via vinodkv) + + MAPREDUCE-2882. TestLineRecordReader depends on ant jars. (todd) + + MAPREDUCE-2687. Fix NodeManager to use the right version of + LocalDirAllocator.getLocalPathToWrite. (mahadev & acmurthy) + + MAPREDUCE-2800. Set final progress for tasks to ensure all task information + is correctly logged to JobHistory. (Siddharth Seth via acmurthy) + + MAPREDUCE-2938. Log application submission failure in CapacityScheduler. + (acmurthy) + + MAPREDUCE-2948. Hadoop streaming test failure, post MR-2767 (mahadev) + + MAPREDUCE-2908. Fix all findbugs warnings. (vinodkv via acmurthy) + + MAPREDUCE-2947. Fixed race condition in AuxiliaryServices. (vinodkv via + acmurthy) + + MAPREDUCE-2844. Fixed display of nodes in UI. (Ravi Teja Ch N V via + acmurthy) + + MAPREDUCE-2677. Fixed 404 for some links from HistoryServer. (Robert Evans + via acmurthy) + + MAPREDUCE-2937. Ensure reason for application failure is displayed to the + user. (mahadev via acmurthy) + + MAPREDUCE-2953. Fix a race condition on submission which caused client to + incorrectly assume application was gone by making submission synchronous + for RMAppManager. (Thomas Graves via acmurthy) + + MAPREDUCE-2963. Fix hang in TestMRJobs. (Siddharth Seth via acmurthy) + + MAPREDUCE-2954. Fixed a deadlock in NM caused due to wrong synchronization + in protocol buffer records. (Siddharth Seth via vinodkv) + + MAPREDUCE-2975. Fixed YARNRunner to use YarnConfiguration rather than + Configuration. (mahadev via acmurthy) + + MAPREDUCE-2971. ant build mapreduce fails protected access jc.displayJobList + (jobs) (Thomas Graves via mahadev) + + MAPREDUCE-2691. Finishing up the cleanup of distributed cache file resources + and related tests. (Siddharth Seth via vinodkv) + + MAPREDUCE-2749. Ensure NM registers with RM after starting all its services + correctly. (Thomas Graves via acmurthy) + + MAPREDUCE-2979. Removed the needless ClientProtocolProvider configuration + from the hadoop-mapreduce-client-core module. (Siddharth Seth via vinodkv) + + MAPREDUCE-2985. Fixed findbugs warnings in ResourceLocalizationService. + (Thomas Graves via acmurthy) + + MAPREDUCE-2874. Fix formatting of ApplicationId in web-ui. (Eric Payne via + acmurthy) + + MAPREDUCE-2995. Better handling of expired containers in MapReduce + ApplicationMaster. (vinodkv via acmurthy) + + MAPREDUCE-2995. Fixed race condition in ContainerLauncher. (vinodkv via + acmurthy) + + MAPREDUCE-2949. Fixed NodeManager to shut-down correctly if a service + startup fails. (Ravi Teja via vinodkv) + + MAPREDUCE-3005. Fix both FifoScheduler and CapacityScheduler to correctly + enforce locality constraints. (acmurthy) + + MAPREDUCE-3007. Fixed Yarn Mapreduce client to be able to connect to + JobHistoryServer in secure mode. (vinodkv) + + MAPREDUCE-2987. Fixed display of logged user on RM Web-UI. (Thomas Graves + via acmurthy) + + MAPREDUCE-3006. Fixed MapReduce AM to exit only after properly writing out + history file. (vinodkv) + + MAPREDUCE-2925. Fixed Yarn+MR client code to behave saner with completed + jobs. (Devaraj K via vinodkv) + + MAPREDUCE-3030. Fixed a bug in NodeId.equals() that was causing RM to + reject all NMs. (Devaraj K via vinodkv) + + MAPREDUCE-3042. Fixed default ResourceTracker address. (Chris Riccomini + via acmurthy) + + MAPREDUCE-3038. job history server not starting because conf() missing + HsController (Jeffrey Naisbitt via mahadev) + + MAPREDUCE-3004. Fix ReduceTask to not assume 'local' mode in YARN. (Hitesh + Shah via acmurthy) + + MAPREDUCE-3017. The Web UI shows FINISHED for killed/successful/failed jobs. + (mahadev) + + MAPREDUCE-3040. Fixed extra copy of Configuration in + YarnClientProtocolProvider and ensured MiniMRYarnCluster sets JobHistory + configuration for tests. (acmurthy) + + MAPREDUCE-3018. Fixed -file option for streaming. (mahadev via acmurthy) + + MAPREDUCE-3036. Fixed metrics for reserved resources in CS. (Robert Evans + via acmurthy) + + MAPREDUCE-2998. Fixed a bug in TaskAttemptImpl which caused it to fork + bin/mapred too many times. (vinodkv via acmurthy) + + MAPREDUCE-3023. Fixed clients to display queue state correctly. (Ravi + Prakash via acmurthy) + + MAPREDUCE-2970. Fixed NPEs in corner cases with different configurations + for mapreduce.framework.name. (Venu Gopala Rao via vinodkv) + + MAPREDUCE-3062. Fixed default RMAdmin address. (Chris Riccomini + via acmurthy) + + MAPREDUCE-3066. Fixed default ResourceTracker address for the NodeManager. + (Chris Riccomini via acmurthy) + + MAPREDUCE-3044. Pipes jobs stuck without making progress. (mahadev) + + MAPREDUCE-2754. Fixed MR AM stdout, stderr and syslog to redirect to + correct log-files. (Ravi Teja Ch N V via vinodkv) + + MAPREDUCE-3073. Fixed build issues in MR1. (mahadev via acmurthy) + + MAPREDUCE-2691. Increase threadpool size for launching containers in + MapReduce ApplicationMaster. (vinodkv via acmurthy) + + + MAPREDUCE-2990. Fixed display of NodeHealthStatus. (Subroto Sanyal via + acmurthy) + + MAPREDUCE-3053. Better diagnostic message for unknown methods in ProtoBuf + RPCs. (vinodkv via acmurthy) + + MAPREDUCE-2952. Fixed ResourceManager/MR-client to consume diagnostics + for AM failures in a couple of corner cases. (Arun C Murthy via vinodkv) + + MAPREDUCE-3064. 27 unit test failures with Invalid + "mapreduce.jobtracker.address" configuration value for + JobTracker: "local" (Venu Gopala Rao via mahadev) + + MAPREDUCE-3090. Fix MR AM to use ApplicationAttemptId rather than + (ApplicationId, startCount) consistently. (acmurthy) + + MAPREDUCE-2646. Fixed AMRMProtocol to return containers based on + priority. (Sharad Agarwal and Arun C Murthy via vinodkv) + + MAPREDUCE-3031. Proper handling of killed containers to prevent stuck + containers/AMs on an external kill signal. (Siddharth Seth via vinodkv) + + MAPREDUCE-2984. Better error message for displaying completed containers. + (Devaraj K via acmurthy) + + MAPREDUCE-3071. app master configuration web UI link under the Job menu + opens up application menu. (thomas graves via mahadev) + + MAPREDUCE-3067. Ensure exit-code is set correctly for containers. (Hitesh + Shah via acmurthy) + + MAPREDUCE-2999. Fix YARN webapp framework to properly filter servlet + paths. (Thomas Graves via vinodkv) + + MAPREDUCE-3095. fairscheduler ivy including wrong version for hdfs. + (John George via mahadev) + + MAPREDUCE-3054. Unable to kill submitted jobs. (mahadev) + + MAPREDUCE-3021. Change base urls for RM web-ui. (Thomas Graves via + acmurthy) + + MAPREDUCE-3041. Fixed ClientRMProtocol to provide min/max resource + capabilities along-with new ApplicationId for application submission. + (Hitesh Shah via acmurthy) + + MAPREDUCE-2843. Fixed the node-table to be completely displayed and making + node entries on RM UI to be sortable. (Abhijit Suresh Shingate via vinodkv) + + MAPREDUCE-3110. Fixed TestRPC failure. (vinodkv) + + MAPREDUCE-3078. Ensure MapReduce AM reports progress correctly for + displaying on the RM Web-UI. (vinodkv via acmurthy) + + MAPREDUCE-3114. Fixed invalid ApplicationURL on RM WebUI. (Subroto Sanyal + via vinodkv) + + MAPREDUCE-2791. Added missing info on 'job -status' output. (Devaraj K via + acmurthy) + + MAPREDUCE-2996. Add uber-ness information to JobHistory. (Jonathan Eagles + via acmurthy) + + MAPREDUCE-3050. Add ability to get resource usage information for + applications and nodes. (Robert Evans via acmurthy) + + MAPREDUCE-3113. Ensure bin/yarn and bin/yarn-daemon.sh identify the root + of the install properly. (Xie Xianshan via acmurthy) + + MAPREDUCE-3137. Fix broken merge of MAPREDUCE-2179. (Hitesh Shah via + acmurthy) + + MAPREDUCE-2792. Replace usage of node ip-addresses with hostnames. + (vinodkv via acmurthy) + + MAPREDUCE-3112. Fixed recursive sourcing of HADOOP_OPTS environment + variable. (Eric Yang) + + MAPREDUCE-3056. Changed the default staging directory to not include + user.name to prevent issues with non-secure mode. (Devaraj K via vinodkv) + + MAPREDUCE-2913. Fixed TestMRJobs.testFailingMapper to assert the correct + TaskCompletionEventStatus. (Jonathan Eagles via vinodkv) + + MAPREDUCE-2794. [MR-279] Incorrect metrics value for AvailableGB per + queue per user. (John George via mahadev) + + MAPREDUCE-2783. Fixing RM web-UI to show no tracking-URL when AM + crashes. (Eric Payne via vinodkv) + + MAPREDUCE-3141. Fix the broken MRAppMaster to work over YARN in security + mode.(vinodkv) + + MAPREDUCE-2751. Modified NodeManager to stop leaving around local files + after application finishes. (Siddharth Seth via vinodkv) + + MAPREDUCE-3033. Ensure Master interface pays attention to classic v/s yarn + frameworks. (Hitesh Shah via acmurthy) + + MAPREDUCE-2802. Ensure JobHistory filenames have jobId. (Jonathan Eagles + via acmurthy) + + MAPREDUCE-2876. Use a different config for ContainerAllocationExpirer. + (Anupam Seth via acmurthy) + + MAPREDUCE-3153. Fix TestFileOutputCommitter which was broken by + MAPREDUCE-2702. (mahadev via acmurthy) + + MAPREDUCE-3123. Fix NM to quote symlink names to escape special + characters. (Hitesh Shah via acmurthy) + + MAPREDUCE-3154. Fix JobSubmitter to check for output specs before copying + job submission files to fail fast. (Abhijit Suresh Shingate via acmurthy) + + MAPREDUCE-3158. Fix test failures in MRv1 due to default framework being + set to yarn. (Hitesh Shah via acmurthy) + + MAPREDUCE-3167. container-executor is not being packaged with the assembly + target. (mahadev) + + MAPREDUCE-3020. Fixed TaskAttemptImpl to log the correct node-address for + a finished Reduce task. (Chackaravarthy via vinodkv) + + MAPREDUCE-2668. Fixed AuxServices to send a signal on application-finish + to all the services. (Thomas Graves via vinodkv) + + MAPREDUCE-3126. Fixed a corner case in CapacityScheduler where headroom + wasn't updated on changes to cluster size. (acmurthy) + + MAPREDUCE-3140. Fixed the invalid JobHistory URL for failed + applications. (Subroto Sanyal via vinodkv) + + MAPREDUCE-3125. Modified TaskImpl to consider only non-failed, non-killed + task-attempts for obtaining task's progress. (Hitesh Shah via vinodkv) + + MAPREDUCE-2666. Retrieve shuffle port number from JobHistory on MR AM + restart. (Jonathan Eagles via acmurthy) + + MAPREDUCE-2789. Complete schedulingInfo on CLI. (Eric Payne via acmurthy) + + MAPREDUCE-3170. Fixed job output commit for deep hierarchies. (Hitesh Shah + via acmurthy) + + MAPREDUCE-3124. Fixed location of native libs i.e. libhadoop.so for + containers. (John George via acmurthy) + + MAPREDUCE-3057. Job History Server goes of OutOfMemory with 1200 Jobs + and Heap Size set to 10 GB. (Eric Payne via mahadev) + + MAPREDUCE-2840. mr279 TestUberAM.testSleepJob test fails. (jonathan eagles + via mahadev) + + MAPREDUCE-3190. Ensure bin/yarn fails early with a clear error message + when HADOOP_COMMON_HOME or HADOOP_HDFS_HOME are not set. (todd & acmurthy + via acmurthy) + + MAPREDUCE-3189. Add link decoration back to MR2's CSS. (Todd Lipcon via + mahadev) + + MAPREDUCE-3127. Changed default value of yarn.resourcemanager.acl.enable + to true and added some more documentation. (acmurthy) + + MAPREDUCE-3032. Fixed TaskAttemptImpl so that JobHistory can have error + information about failed tasks. (Devaraj K via vinodkv) + + MAPREDUCE-3196. TestLinuxContainerExecutorWithMocks fails on Mac OSX. + (Arun Murthy via mahadev) + + MAPREDUCE-3197. TestMRClientService failing on building clean checkout of + branch 0.23 (mahadev) + + MAPREDUCE-2762. Cleanup MR staging directory on completion. (mahadev via + acmurthy) + + MAPREDUCE-3165. Ensure logging options are set correctly for MR AM and + tasks. (todd via acmurthy) + + MAPREDUCE-3203. Fix some javac warnings in MRAppMaster. (mahadev) + + MAPREDUCE-3162. Separated application-init and container-init event types + in NodeManager's Application state machine. (Todd Lipcon via vinodkv) + + MAPREDUCE-3176. Fixed ant mapreduce tests that are timing out because + of wrong framework name. (Hitesh Shah via vinodkv) + + MAPREDUCE-3181. Fixed MapReduce runtime to load yarn-default.xml and + yarn-site.xml. (acmurthy) + + MAPREDUCE-2788. Normalize resource requests in FifoScheduler + appropriately. (Ahmed Radwan via acmurthy) + + MAPREDUCE-2693. Fix NPE in job-blacklisting. (Hitesh Shah via acmurthy) + + MAPREDUCE-3208. Fix NPE task/container log appenders. (liangzhwa via + acmurthy) + + MAPREDUCE-3212. Fix usage/help message for bin/yarn. (Bhallamudi Venkata + Siva Kamesh via acmurthy) + + MAPREDUCE-3179. Ensure failed tests exit with right error code. (Jonathan + Eagles via acmurthy) + + MAPREDUCE-3188. Ensure correct shutdown in services. (todd via acmurthy) + + MAPREDUCE-3226. Fix shutdown of fetcher threads. (vinodkv via acmurthy) + + MAPREDUCE-3070. Fix NodeManager to use ephemeral ports by default. + (Devaraj K via acmurthy) + + MAPREDUCE-3242. Trunk compilation broken with bad interaction from + MAPREDUCE-3070 and MAPREDUCE-3239. (mahadev) + + MAPREDUCE-3058. Fixed MR YarnChild to report failure when task throws an + error and thus prevent a hanging task and job. (vinodkv) + + MAPREDUCE-3087. Fixed the mapreduce classpath to correctly include the + generated-classpath file needed for tests. (Ravi Prakash via vinodkv) + + MAPREDUCE-3233. Fixed a bug in MR Job so as to be able to restart the + application on AM crash. (Mahadev Konar via vinodkv) + + MAPREDUCE-3028. Added job-end notification support. (Ravi Prakash via + acmurthy) + + MAPREDUCE-3249. Ensure shuffle-port is correctly used duringMR AM recovery. + (vinodkv via acmurthy) + + MAPREDUCE-3252. Fix map tasks to not rewrite data an extra time when + map output fits in spill buffer. (todd) + + MAPREDUCE-3159. Ensure DefaultContainerExecutor doesn't delete application + directories during app-init. (todd via acmurthy) + + MAPREDUCE-2746. Yarn servers can't communicate with each other with + hadoop.security.authorization set to true (acmurthy via mahadev) + + MAPREDUCE-2821. Added missing fields (resourcePerMap & resourcePerReduce) + to JobSummary logs. (mahadev via acmurthy) + + MAPREDUCE-3253. Fixed ContextFactory to clone JobContext correctly. + (acmurthy) + + MAPREDUCE-3263. Fixed the MAPREDUCE-3028 commit which broke MR1. (Hitesh + Shah via acmurthy) + + MAPREDUCE-3269. Fixed log4j properties to correctly set logging options + for JobHistoryServer vis-a-vis JobSummary logs. (mahadev via acmurthy) + + MAPREDUCE-3250. When AM restarts, client keeps reconnecting to the new AM + and prints a lots of logs. (vinodkv via mahadev) + + MAPREDUCE-3254. Fixed streaming to set the job.jar by using the right + JobConf ctor. (acmurthy) + + MAPREDUCE-3264. mapreduce.job.user.name needs to be set automatically. + (acmurthy via mahadev) + + MAPREDUCE-3175. Add authorization to admin web-pages such as /stacks, /jmx + etc. (Jonathan Eagles via acmurthy) + + MAPREDUCE-3257. Added authorization checks for the protocol between + ResourceManager and ApplicationMaster. (vinodkv via acmurthy) + + MAPREDUCE-3259. Added java.library.path of NodeManager to + ContainerLocalizer in LinuxContainerExecutor. (Kihwal Lee via acmurthy) + + MAPREDUCE-3279. Fixed TestJobHistoryParsing which assumed user name to be + mapred all the time. (Siddharth Seth via acmurthy) + + MAPREDUCE-3240. Fixed NodeManager to be able to forcefully cleanup its + containers (process-trees) irrespective of whether the container succeeded, + or killed. Contributed by Hitesh Shah. + + MAPREDUCE-3281. Fixed a bug in TestLinuxContainerExecutorWithMocks. (vinodkv) + + MAPREDUCE-3228. Fixed MR AM to timeout RPCs to bad NodeManagers. (vinodkv + via acmurthy) + + MAPREDUCE-3284. Moved JobQueueClient to hadoop-mapreduce-client-core. + (acmurthy) + + MAPREDUCE-3282. bin/mapred job -list throws exception. (acmurthy via + mahadev) + + MAPREDUCE-3186. User jobs are getting hanged if the Resource manager + process goes down and comes up while job is getting executed. + (Eric Payne via mahadev) + + MAPREDUCE-3285. Tests on branch-0.23 failing (Siddharth Seth via mahadev) + + MAPREDUCE-3258. Fixed AM & JobHistory web-ui to display counters properly. + (Siddharth Seth via acmurthy) + + MAPREDUCE-3290. Fixed a NPE in ClientRMService. (acmurthy) + + MAPREDUCE-3185. RM Web UI does not sort the columns in some cases. + (Jonathan Eagles via mahadev) + + MAPREDUCE-3292. In secure mode job submission fails with Provider + org.apache.hadoop.mapreduce.security.token.JobTokenIndentifier$Renewer + not found. (mahadev) + + MAPREDUCE-3296. Fixed the remaining nine FindBugs warnings. (vinodkv) + + MAPREDUCE-2775. Fixed ResourceManager and NodeManager to force a + decommissioned node to shutdown. (Devaraj K via vinodkv) + + MAPREDUCE-3304. Fixed intermittent test failure due to a race in + TestRMContainerAllocator#testBlackListedNodes. (Ravi Prakash via acmurthy) + + MAPREDUCE-3306. Fixed a bug in NodeManager ApplicationImpl that was causing + NodeManager to crash. (vinodkv) + + MAPREDUCE-3295. TestAMAuthorization failing on branch 0.23. (vinodkv via mahadev) + + MAPREDUCE-3183. hadoop-assemblies/src/main/resources/assemblies/hadoop-mapreduce-dist.xml + missing license header. (Hitesh Shah via tucu). + + MAPREDUCE-3003. Publish MR JARs to Maven snapshot repository. (tucu) + + MAPREDUCE-3199. Fixed pom files to include correct log4j configuration for + tests. (vinodkv) + + MAPREDUCE-3204. mvn site:site fails on MapReduce. (tucu) + + MAPREDUCE-3248. Fixed log4j properties. (vinodkv via acmurthy) + + MAPREDUCE-3256. Added authorization checks for the protocol between + NodeManager and ApplicationMaster. (vinodkv via acmurthy) + + MAPREDUCE-3274. Fixed a race condition in MRAppMaster that was causing a + task-scheduling deadlock. (Robert Joseph Evans via vinodkv) + + MAPREDUCE-3171 merge from trunk reverted changes from MAPREDUCE-2747 MAPREDUCE-3240. + + MAPREDUCE-3313. Fixed initialization of ClusterMetrics which was failing + TestResourceTrackerService sometimes. (Hitesh Shah via vinodkv) + + MAPREDUCE-2766. Fixed NM to set secure permissions for files and directories + in distributed-cache. (Hitesh Shah via vinodkv) + + MAPREDUCE-2696. Fixed NodeManager to cleanup logs in a thread when logs' + aggregation is not enabled. (Siddharth Seth via vinodkv) + + MAPREDUCE-3262. Fixed Container's state-machine in NodeManager to handle + a couple of events in failure states correctly. (Hitesh Shah and Siddharth + Seth via vinodkv) + + MAPREDUCE-3035. Fixed MR JobHistory to ensure rack information is present. + (chakravarthy via acmurthy) + + MAPREDUCE-3321. Disabled a few MR tests for 0.23. (Hitesh Shah via + acmurthy) + + MAPREDUCE-3220. Fixed TestCombineOutputCollector. (Devaraj K via acmurthy) + + MAPREDUCE-3103. Implement Job ACLs for MRAppMaster. + (mahadev) + + MAPREDUCE-3241. [Rumen] Fix Rumen to ignore the AMStartedEvent. (amarrk) + + MAPREDUCE-3166. [Rumen] Make Rumen use job history api instead of relying + on current history file name format. (Ravi Gummadi via amarrk) + + MAPREDUCE-3157. [Rumen] Fix TraceBuilder to handle 0.20 history file + names also. (Ravi Gummadi via amarrk) + + MAPREDUCE-3081. Fix vaidya startup script. (gkesavan via suhas). + + MAPREDUCE-2764. Fix renewal of dfs delegation tokens. (Owen via jitendra) + + MAPREDUCE-3192. Fix Javadoc warning in JobClient.java and Cluster.java. + (jitendra) + + MAPREDUCE-3237. Move LocalJobRunner to hadoop-mapreduce-client-core. + (tomwhite via acmurthy) + + MAPREDUCE-3316. Rebooted link is not working properly. + (Bhallamudi Venkata Siva Kamesh via mahadev) + + MAPREDUCE-3317. Rumen TraceBuilder is emiting null as hostname. + (Ravi Gummadi via mahadev) + + MAPREDUCE-3332. contrib/raid compile breaks due to changes in hdfs/protocol/datatransfer/ + Sender#writeBlock related to checksum handling (Hitesh Shah via mahadev) + + MAPREDUCE-3337. Added missing license headers. (acmurthy) + +Release 0.22.1 - Unreleased + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + OPTIMIZATIONS + + BUG FIXES + + MAPREDUCE-3837. Job tracker is not able to recover jobs after crash. + (Mayank Bansal via shv) + +Release 0.22.0 - 2011-11-29 + + INCOMPATIBLE CHANGES + + MAPREDUCE-1866. Removes deprecated class + org.apache.hadoop.streaming.UTF8ByteArrayUtils. (amareshwari) + + MAPREDUCE-1664. Changes the behaviour of the combination of job-acls + when they function together with queue-acls. (Ravi Gummadi via vinodkv) + + MAPREDUCE-2994. Fixed a bug in ApplicationID parsing that affects RM + UI. (Devaraj K via vinodkv) + + MAPREDUCE-1788. o.a.h.mapreduce.Job shouldn't make a copy of the JobConf. + (Arun Murthy via mahadev) + + NEW FEATURES + + MAPREDUCE-1804. Stress-test tool for HDFS introduced in HDFS-708. + (Joshua Harlow via shv) + + MAPREDUCE-220. Collect cpu and memory statistics per task. (Scott Chen via + acmurthy) + + MAPREDUCE-1970. Reed-Solomon code implementation for HDFS RAID. + (Scott Chen via dhruba) + + MAPREDUCE-2169. Integrated Reed-Solomon code with RaidNode. (Ramkumar + Vadali via schen) + + MAPREDUCE-2936. Contrib Raid compilation broken after HDFS-1620. (vinodkv) + + IMPROVEMENTS + + MAPREDUCE-2141. Add an "extra data" field to Task for use by Mesos. (matei) + + MAPREDUCE-2140. Regenerate fair scheduler design doc PDF. (matei) + + MAPREDUCE-1546. Redirect all job pages to corresponding history page + if job is not in JT memory. (Scott Chen via sharad) + + MAPREDUCE-1092. Enable assertions for unit tests. (Eli Collins via + cdouglas) + + MAPREDUCE-1680. Add a metric recording JobTracker heartbeats processed. + (Dick King via cdouglas) + + MAPREDUCE-1761. FairScheduler allows separate configuration of node + and rack locality wait time (Scott Chen via dhruba) + + MAPREDUCE-1539. authorization checks for inter-server protocol + (based on HADOOP-6600) (Boris Shkolnik via shv) + + MAPREDUCE-1798. Names the configuration keys for the Kerberos + principals better. (Boris Shkolnik via ddas) + + MAPREDUCE-1773. streaming doesn't support jobclient.output.filter. + (Amareshwari Sriramadasu via vinodkv) + + MAPREDUCE-1785. Add streaming config option for not emitting the key. + (Eli Collins via sharad) + + MAPREDUCE-572. If #link is missing from uri format of -cacheArchive + then streaming does not throw error. (Amareshwari Sriramadasu via + vinodkv) + + MAPREDUCE-1545. Add timestamps for first task type launched in job summary. + (Luke Lu via cdouglas) + + MAPREDUCE-1543. Add an audit log for authentication events. (Amar Kamat and + Luke Lu via cdouglas) + + MAPREDUCE-1762. Add ability to set values of task counters. (Scott Chen via + cdouglas) + + MAPREDUCE-1533. Reduce overhead of logging and string manipulation during + heartbeat processing. (Amar Kamat and Dick King via cdouglas) + + MAPREDUCE-1516. JobTracker issues delegation tokens only if the user's + authentication is Kerberos. (Jitendra Pandey via ddas) + + MAPREDUCE-647. Update distcp forrest documentation to reflect the changes + of HADOOP-5472, MAPREDUCE-642 and HADOOP-5620. (Rodrigo Schmidt via + szetszwo) + + MAPREDUCE-1851. Documents configuration parameters in streaming. + (amareshwari) + + MAPREDUCE-1868. Add a read and connection timeout to JobClient while + pulling tasklogs. (Krishna Ramachandran via acmurthy) + + MAPREDUCE-1778. Ensure failure to setup CompletedJobStatusStore is not + silently ignored by the JobTracker. (Krishna Ramachandran via acmurthy) + + MAPREDUCE-1850. Includes job submit host information (name and ip) in + jobconf and jobdetails display (Krishna Ramachandran via amareshwari) + + MAPREDUCE-1893. Slive with multiple reducers. (shv) + + MAPREDUCE-1248. Fixes redudant memory copying in StreamKeyValUtil. + (Ruibang He via amareshwari) + + MAPREDUCE-1840. Enhancements to Gridmix benchmark simulating user + diversity, queue replay, and task duration for JobTracker load testing. + Also includes compatibility with security enhancements, and scalability + improvements. (Amar Kamat, Rahul Singh, Hong Tang, and cdouglas) + + MAPREDUCE-1848. Put number of speculative, data local, rack local + tasks in JobTracker metrics. (Scott Chen via dhruba) + + MAPREDUCE-1935. Makes the Distcp to work in a secure environment. + (Boris Shkolnik via ddas) + + MAPREDUCE-1945. The MapReduce component for HADOOP-6632. + (Kan Zhang & Jitendra Pandey via ddas) + + MAPREDUCE-1936. Modify Gridmix3 to support more tunable parameters for + stress submission and sleep jobs. (Hong Tang via cdouglas) + + MAPREDUCE-1733. Makes pipes applications secure. (Jitendra Pandey via ddas) + + MAPREDUCE-1566. Adds a configuration attribute using which job clients can + specify a credentials file. The tokens from there will be passed to the job. + (Jitendra Pandey and Owen O'Malley via ddas) + + MAPREDUCE-1624. Documents the job credentials and associated details to do + with delegation tokens (on the client side). + (Jitendra Pandey and Devaraj Das via ddas) + + MAPREDUCE-1834. TestSimulatorDeterministicReplay timesout on trunk. + (Hong Tang via mahadev) + + MAPREDUCE-1993. Fixes test failure + TestTrackerDistributedCacheManagerWithLinuxTaskController. (Devaraj Das + via amareshwari) + + MAPREDUCE-1523. Making Mumak work with Capacity-Scheduler (Anirban Das + via mahadev) + + MAPREDUCE-1920. Enables completed jobstatus store by default. (Tom White + via amareshwari) + + MAPREDUCE-1881. Improve TaskTrackerInstrumentation to enable collection of + advanced metrics. (Matei Zaharia via acmurthy) + + MAPREDUCE-1548. Hadoop archives preserve times and other properties from + original files. (Rodrigo Schmidt via dhruba) + + MAPREDUCE-1517. Supports streaming job to run in the background. (Bochun Bai + via amareshwari) + + MAPREDUCE-1819. RaidNode is now smarter in submitting Raid jobs. (Ramkumar + Vadali via schen) + + MAPREDUCE-2132. A command line option in RaidShell to fix blocks using raid + + MAPREDUCE-2147. Remove redundant lines in JobInProgress ctor. + (Harsh J Chouraria via cutting) + + HADOOP-7007. Update the hudson-test-patch ant target to work with the + latest test-patch.sh script (gkesavan) + + MAPREDUCE-1818. RaidNode can specify scheduling parameters. (Ramkumar + Vadali via schen) + + MAPREDUCE-2051. Contribute a fair scheduler preemption system test. + (Todd Lipcon via tomwhite) + + MAPREDUCE-1892. RaidNode can allow layered policies more efficiently. + (Ramkumar Vadali via schen) + + MAPREDUCE-1592. Generate Eclipse's .classpath file from Ivy config. + (tomwhite via nigel) + + MAPREDUCE-2073. TestTrackerDistributedCacheManager should be up-front + about requirements on build environment. (Todd Lipcon via tomwhite) + + MAPREDUCE-2093. Herriot JT and TT clients should vend statistics. (cos) + + MAPREDUCE-2167. Faster directory traversal for raid node. (Ramkumar Vadali + via schen) + + MAPREDUCE-1931. Gridmix forrest documentation . (Ranjit Mathew via vinodkv). + + MAPREDUCE-2184. Port DistRaid.java to new mapreduce API. (Ramkumar Vadali + via schen) + + MAPREDUCE-1878. Add MRUnit documentation. (Aaron Kimball via tomwhite) + + MAPREDUCE-2180. Add coverage of fair scheduler servlet to system test (todd) + + MAPREDUCE-2250. Fix logging in raid code. (Ramkumar Vadali via schen) + + MAPREDUCE-2260. Remove auto-generated native build files. (rvs via eli) + + MAPREDUCE-2314. configure files that are generated as part of the released + tarball need to have executable bit set (rvs via cos) + + MAPREDUCE-1159. Limit Job name in web UI to be 80 char long. (Harsh J + Chouraria via szetszwo) + + MAPREDUCE-2337. Remove dependence of public MapReduce API on classes in + server package. (tomwhite) + + MAPREDUCE-2383. Improve documentation of DistributedCache methods (Harsh J + Chouraria via todd) + + MAPREDUCE-2222. Ivy resolve force mode should be turned off by default. + (Luke Lu via tomwhite) + + MAPREDUCE-2103. task-controller shouldn't require o-r permissions. + (todd via eli) + + MAPREDUCE-2505. Explain how to use ACLs in the fair scheduler. + (matei via eli) + + MAPREDUCE-3138. Add a utility to help applications bridge changes in + Context Objects APIs due to MAPREDUCE-954. (omalley via acmurthy) + + OPTIMIZATIONS + + MAPREDUCE-1354. Enhancements to JobTracker for better performance and + scalability. (Arun C. Murthy & Richard King via acmurthy) + + MAPREDUCE-1829. JobInProgress.findSpeculativeTask should use min() to + find the candidate instead of sort(). (Scott Chen via vinodkv) + + BUG FIXES + + MAPREDUCE-1845. FairScheduler.tasksToPreempt() can return negative number. + (Scott Chen via matei) + + MAPREDUCE-1707. TaskRunner can get NPE in getting ugi from TaskTracker. + (Vinod Kumar Vavilapalli) + + MAPREDUCE-1532. Ensures that delegation tokens is obtained as the + actual user when the proxy-user is used for submitting jobs. Also + refactors the DelegationTokenToRenew class. (ddas) + + MAPREDUCE-1558. Fixes MRAdmin to look up the principal of the + JobTracker and use that in the RefreshUserToGroupsMapping protocol and + RefreshAuthorizationPolicyProtocol. (Boris Shkolnik via ddas) + + MAPREDUCE-1662. Remove unused methods from TaskRunner. (Amareshwari + Sriramadasu via cdouglas) + + MAPREDUCE-1617. Use IPv4 stack for unit tests. (Amar Kamat and Luke Lu via + cdouglas) + + MAPREDUCE-1599. Fixes MRBench so that it reuses tokens across jobs + correctly. (Jitendra Nath Pandey via ddas) + + MAPREDUCE-1836. Refresh for proxy superuser config (mr part for HDFS-1096). + (Boris Shkolnik via shv) + + MAPREDUCE-1505. Create RPC client on job submission, not in cstr of Job + instance. (Dick King via cdouglas) + + MAPREDUCE-1813. NPE in PipeMapred.MRErrorThread. (Ravi Gummadi via vinodkv) + + MAPREDUCE-1225. Fixes DistributedCache to check if the file is fresh or not, + for the first localization also. (Zhong Wang via amareshwari) + + MAPREDUCE-1559. Fixes the token renewer to use the JobTracker's + credentials for talking to the NameNode. (ddas) + + MAPREDUCE-1492. Delete obsolete har files used on the parity files + of hdfs raid. (Rodrigo Schmidt via dhruba) + + MAPREDUCE-1857. Removes unused configuration parameters in streaming. + (amareshwari) + + MAPREDUCE-1887. MRAsyncDiskService now properly absolutizes volume root + paths. (Aaron Kimball via zshao) + + MAPREDUCE-1863. Fix NPE in Rumen when processing null CDF for failed task + attempts. (Amar Kamat via cdouglas) + + MAPREDUCE-1864. Removes uninitialized/unused variables in + org.apache.hadoop.streaming.PipeMapRed. (amareshwari) + + MAPREDUCE-1888. Fixes Streaming to override output key and value types, + only if mapper/reducer is a command. (Ravi Gummadi via amareshwari) + + MAPREDUCE-577. Fixes duplicate records in StreamXmlRecordReader. + (Ravi Gummadi via amareshwari) + + MAPREDUCE-1894. Fixed a bug in DistributedRaidFileSystem.readFully() + that was causing it to loop infinitely. (Ramkumar Vadali via dhruba) + + MAPREDUCE-1838. Reduce the time needed for raiding a bunch of files + by randomly assigning files to map tasks. (Ramkumar Vadali via dhruba) + + MAPREDUCE-1820. Fix InputSampler to clone sampled keys. (Alex Kozlov via + cdouglas) + + MAPREDUCE-1528. Incorporates the changes to the credentials API done in + HADOOP-6845. Also, introduces Credentials in JobConf, and in JobContext. + (Jitendra Pandey and Arun Murthy via ddas) + + MAPREDUCE-1865. Rumen should also support jobhistory files generated using + trunk. (Amar Kamat via amareshwari) + + MAPREDUCE-1621. Fixes NPE in TextOutputReader.getLastOutput if it has never + read any output. (amareshwari) + + MAPREDUCE-1911. Fixes errors in -info message in streaming. (amareshwari) + + MAPREDUCE-1772. Corrects errors in streaming documentation in forrest. + (amareshwari) + + MAPREDUCE-1925. Fix failing TestRumenJobTraces. (Ravi Gummadi via cdouglas) + + MAPREDUCE-1718. Fixes a bug in the construction of jobconf key for the + mapping that the tasks use at runtime for looking up delegation tokens. + (Boris Shkolnik via ddas) + + MAPREDUCE-1701. Fixes a problem to do with exception handling in + delegation-token renewals. (Boris Shkolnik via ddas) + + MAPREDUCE-1686. Fixes StreamUtil.goodClassOrNull to find classes without + package names. (Paul Burkhardt via amareshwari) + + MAPREDUCE-1288. Fixes TrackerDistributedCacheManager to take into account + the owner of the localized file in the mapping from cache URIs to + CacheStatus objects. (ddas) + + MAPREDUCE-1982. Fixes Rumen's TraceBuilder to extract job name from either + of configuration properties "mapreduce.job.name" and "mapred.job.name". + (Ravi Gummadi via amareshwari) + + MAPREDUCE-1958. The MapReduce part corresponding to the HADOOP-6873. + (Boris Shkolnik & Owen O'Malley via ddas) + + MAPREDUCE-1900. TaskTracker and JobTracker closes FileSystems, opened on + behalf of users that it no longer requires. (Kan Zhang and ddas via ddas) + + MAPREDUCE-1992. Fixes a problem to do with bringing up the JobTracker in + unsecure mode. (Kan Zhang via ddas) + + MAPREDUCE-1999. Fixes ClientProtocol to use the correct + DelegationTokenSelector. (Jitendra Pandey via ddas) + + MAPREDUCE-1780. AccessControlList.toString() is used for serialization of + ACL in JobStatus.java. (Ravi Gummadi via vinodkv) + + MAPREDUCE-1961. Fix ConcurrentModificationException in Gridmix during + shutdown. (Hong Tang via cdouglas) + + MAPREDUCE-2000. Fix parsing of JobHistory lines in Rumen when quotes are + escaped. (Hong Tang via cdouglas) + + MAPREDUCE-2022. Fixes compilation errors in TestSubmitJob. (amareshwari) + + MAPREDUCE-1670. RAID policies should not scan their own destination path. + (Ramkumar Vadali via dhruba) + + MAPREDUCE-1668. RaidNode Hars a directory only if all its parity files + have been created. (Ramkumar Vadali via dhruba) + + MAPREDUCE-2021. Fixes duplicate hostnames in CombineFileInputFormat's + split locations. (amareshwari) + + MAPREDUCE-1375. Fixes flaky test TestFileArgs. (Todd Lipcon via + amareshwari) + + MAPREDUCE-2023. TestDFSIO should not stop reading if curSize != bufferSize. + (Hong Tang via szetszwo) + + MAPREDUCE-2031. Fixes test failures TestTaskLauncher and + TestTaskTrackerLocalization. (Ravi Gummadi via amareshwari) + + MAPREDUCE-2046. Fixes CombineFileInputFormat to allow splits with size + less than DFS block size. (dhruba borthakur via amareshwari) + + MAPREDUCE-1975. Fixes unnecessary InterruptedException log in gridmix. + (Ravi Gummadi via amareshwari) + + MAPREDUCE-1597. Fixes CombineFileInputFormat to work with non-splittable + files. (amareshwari) + + MAPREDUCE-2032. Fixes TestJobCleanup to cleanup test directory in + tearDown. (Dick King via amareshwari) + + MAPREDUCE-1979. Fixes "Output directory already exists" error in gridmix + when gridmix.output.directory is not defined. (Ravi Gummadi via + amareshwari) + + MAPREDUCE-1918. Adds documentation to Rumen. (Amar Kamat via amareshwari) + + MAPREDUCE-2078. Fixes TraceBuilder to generate traces when a globbed job + history path is given. (Amar Kamat via amareshwari) + + MAPREDUCE-1989. Fixes error message in gridmix when user resolver is set + and no user list is given. (Ravi Gummadi via amareshwari) + + MAPREDUCE-2067. Distinct minicluster services (e.g. NN and JT) overwrite + each other's service policies. (Aaron T. Myers via tomwhite) + + MAPREDUCE-2029. DistributedRaidFileSystem removes itself from FileSystem + cache when it is closed. (Ramkumar Vadali via dhruba) + + MAPREDUCE-1816. HAR files used for RAID parity-bite have configurable + partfile size. (Ramkumar Vadali via dhruba) + + MAPREDUCE-2082. Fixes Pipes to create the jobtoken file in the right + place. (Jitendra Pandey via ddas) + + MAPREDUCE-2095. Fixes Gridmix to run from compressed traces. (Ranjit + Mathew via amareshwari) + + MAPREDUCE-1908. DistributedRaidFileSystem now handles ChecksumException + correctly. (Ramkumar Vadali via schen) + + MAPREDUCE-2126. JobQueueJobInProgressListener's javadoc is inconsistent + with source code. (Jingguo Yao via tomwhite) + + MAPREDUCE-2143. HarFileSystem is able to handle spaces in pathnames. + (Ramkumar Vadali via dhruba) + + MAPREDUCE-1867. Remove unused methods in + org.apache.hadoop.streaming.StreamUtil. (amareshwari via tomwhite) + + MAPREDUCE-2146. Raid does not affect access time of a source file. + (Ramkumar Vadali via dhruba) + + MAPREDUCE-2150. RaidNode periodically fixes corrupt blocks. (Ramkumar Vadali via + schen) + + MAPREDUCE-2099. RaidNode recreates outdated parity HARs. (Ramkumar Vadali + via schen) + + MAPREDUCE-2173. Fix race condition in TestBlockFixer that was + causing intermittent failure (Patrick Kling via dhruba) + + MAPREDUCE-2142. Refactor RaidNode so that the map-reduce component is + clearly separated out. (Patrick Kling via dhruba) + + MAPREDUCE-2179. Fix RaidBlockSender compilation failure. (Ramkumar Vadali + via schen) + + MAPREDUCE-2034. TestSubmitJob triggers NPE instead of permissions error. + (Todd Lipcon via tomwhite) + + MAPREDUCE-2195. New property for local conf directory in + system-test-mapreduce.xml file. (cos) + + MAPREDUCE-1783. FairScheduler initializes tasks only when the job can be + run. (Ramkumar Vadali via schen) + + MAPREDUCE-2224. Fix synchronization bugs in JvmManager. (todd) + + MAPREDUCE-714. JobConf.findContainingJar unescapes unnecessarily on linux (todd) + + MAPREDUCE-2096. Secure local filesystem IO from symlink vulnerabilities (todd) + + MAPREDUCE-2234. If Localizer can't create task log directory, it should fail + on the spot. (todd) + + MAPREDUCE-2219. JobTracker should not try to remove mapred.system.dir + during startup. (todd) + + MAPREDUCE-2207. Task-cleanup task should not be scheduled on the node that + the task just failed. (Liyin Liang via schen) + + MAPREDUCE-2084. Remove deprecate annotation for package file. The package + classes themselves are already deprecated. This removes an Eclipse error. + (tomwhite via nigel) + + MAPREDUCE-2248. DistributedRaidFileSystem should unraid only the corrupt + block (Ramkumar Vadali via schen) + + MAPREDUCE-1085. For tasks, "ulimit -v -1" is being run when user doesn't + specify a ulimit (todd) + + MAPREDUCE-2282. Fix TestMRServerPorts for the changes in + TestHDFSServerPorts. (shv via szetszwo) + + MAPREDUCE-2238. Fix permissions handling to avoid leaving undeletable + directories in local dirs. (todd) + + MAPREDUCE-2277. TestCapacitySchedulerWithJobTracker needs to wait for jobs + to complete before testing status. (todd) + + MAPREDUCE-2253. Servlets should specify content type (todd) + + MAPREDUCE-2283. Add timeout for Raid Tests (Ramkumar Vadali via schen) + + MAPREDUCE-1754. Replace mapred.persmissions.supergroup with an + acl : mapreduce.cluster.administrators (Amareshwari Sriramadasu via shv) + + MAPREDUCE-2256. FairScheduler fairshare preemption from multiple pools may + preempt all tasks from one pool causing that pool to go below fairshare. + (Priyo Mustafi via shv) + + MAPREDUCE-2281. MR part of HADOOP-6642. (Chris Douglas, Po Cheung via shv) + + MAPREDUCE-2200. TestUmbilicalProtocolWithJobToken is failing without Krb + evironment: needs to be conditional. (cos) + + MAPREDUCE-2077. Resolve name clash in the deprecated + o.a.h.util.MemoryCalculatorPlugin (Luke Lu via shv) + + MAPREDUCE-2188. The new API MultithreadedMapper doesn't initialize + RecordReader. (Owen O'Malley via shv) + + MAPREDUCE-1915. Fix IndexOutOfBoundsException in IndexCache. + (Priyo Mustafi via shv) + + MAPREDUCE-1974. Fix multiple preemtions of the same task in FairScheduler. + (Scott Chen via shv) + + MAPREDUCE-2304. Fix TestMRCLI to allow hostname with a hyphen (-). + (Priyo Mustafi via shv) + + MAPREDUCE-1825. jobqueue_details.jsp and FairSchedulerServelet should not + call finishedMaps and finishedReduces when job is not initialized. + (Scott Chen via shv) + + MAPREDUCE-2285. MiniMRCluster does not start after ant test-patch + (todd) + + MAPREDUCE-2315. javadoc is failing in nightly build (todd) + + MAPREDUCE-2054. Hierarchical queue implementation broke dynamic queue + addition in Dynamic Scheduler. (Thomas Sandholm via tomwhite) + + MAPREDUCE-2272. Job ACL file should not be executable + (Harsh J Chouraria via todd) + + MAPREDUCE-2241. ClusterWithLinuxTaskController should accept relative path + on the command line. (todd) + + MAPREDUCE-2251. Remove unused mapreduce.job.userhistorylocation config. + (Harsh J Chouraria via todd) + + MAPREDUCE-2284. TestLocalRunner.testMultiMaps times out (todd) + + MAPREDUCE-2336. Tool-related packages should be in the Tool javadoc group. + (tomwhite) + + MAPREDUCE-2394. JUnit output format doesn't propagate into raid contrib + build. (todd) + + MAPREDUCE-2392. TaskTracker shutdown in the tests sometimes take 60s. + (tomwhite) + + MAPREDUCE-2437. SLive uses only part* files to generating the final report. + (shv) + + MAPREDUCE-2428. start-mapred.sh script fails if HADOOP_HOME is not set. + (tomwhite via eli) + + MAPREDUCE-2445. Fix TestMiniMRWithDFSWithDistinctUsers to be a valid test. + (todd) + + MAPREDUCE-2457. Job submission should inject group.name on the JobTracker + (Alejandro Abdelnur via todd) + + MAPREDUCE-2472. Extra whitespace in mapred.child.java.opts breaks JVM + initialization. (Aaron T. Myers via todd) + + MAPREDUCE-2222. Ivy resolve force mode should be turned off by default. + (Luke Lu via tomwhite) + + MAPREDUCE-2486. Incorrect snapshot dependency published in .pom files + (todd) + + MAPREDUCE-2327. MapTask doesn't need to put username information in + SpillRecord. (todd via tomwhite) + + MAPREDUCE-2515. MapReduce code references some deprecated options + (Ari Rabkin via todd) + + MAPREDUCE-2487. ChainReducer uses MAPPER_BY_VALUE instead of + REDUCER_BY_VALUE. (Devaraj K via todd) + + MAPREDUCE-2185. Fix infinite loop at creating splits using + CombineFileInputFormat. (Ramkumar Vadali via schen) + + MAPREDUCE-2571. CombineFileInputFormat.getSplits throws a + java.lang.ArrayStoreException. (Bochun Bai via todd) + + MAPREDUCE-2767. Remove Linux task-controller. (Milind Bhandarkar via shv) + + MAPREDUCE-2991. queueinfo.jsp fails to show queue status for Capacity + scheduler if queue names contain special symbols. (Priyo Mustafi via shv) + + MAPREDUCE-2531. Fixed jobcontrol to downgrade JobID. (Robert Evans via + acmurthy) + + MAPREDUCE-3139. SlivePartitioner generates negative partitions. (jghoman) + +Release 0.21.1 - Unreleased + + NEW FEATURES + + MAPREDUCE-2040. Forrest Documentation for Dynamic Priority Scheduler. + (Thomas Sandholm via tomwhite) + + BUG FIXES + + MAPREDUCE-1897. trunk build broken on compile-mapred-test (cos) + + MAPREDUCE-1280. Update Eclipse plugin to the new eclipse.jdt API. + (Alex Kozlov via szetszwo) + + MAPREDUCE-1984. herriot TestCluster fails because exclusion is not there + (Balaji Rajagopalan via cos) + + MAPREDUCE-2090. Clover build doesn't generate per-test coverage. (cos) + + MAPREDUCE-2134. ant binary-system is broken in mapreduce project. (cos) + + MAPREDUCE-1905. Fixes Context.setStatus() and progress() apis. + (amareshwari) + + MAPREDUCE-1809. Ant build changes for Streaming system tests in contrib + projects. (Vinay Kumar Thota via amareshwari) + + MAPREDUCE-2223. TestMRCLI might fail on Ubuntu with default /etc/hosts + (cos) + + MAPREDUCE-2228. Remove java5 dependencies from build. (cos) + + MAPREDUCE-1929. Allow artifacts to be published to the staging Apache Nexus + Maven Repository. (tomwhite) + + MAPREDUCE-2317. Fix a NPE in HadoopArchives. (Devaraj K via szetszwo) + + MAPREDUCE-2127. mapreduce trunk builds are filing on hudson. + (Bruno Mahé via eli) + + MAPREDUCE-2779. JobSplitWriter.java can't handle large job.split file. + (Ming Ma via shv) + +Release 0.21.0 - 2010-08-13 + + INCOMPATIBLE CHANGES + + MAPREDUCE-516. Fix the starvation problem in the Capacity Scheduler + when running High RAM Jobs. (Arun Murthy via yhemanth) + + MAPREDUCE-358. Change org.apache.hadoop.examples. AggregateWordCount + and org.apache.hadoop.examples.AggregateWordHistogram to use new + mapreduce api. (Amareshwari Sriramadasu via sharad) + + MAPREDUCE-245. Change Job and jobcontrol classes to use the List interface + rather than ArrayList in APIs. (Tom White via cdouglas) + + MAPREDUCE-766. Enhanced list-blacklisted-trackers to display reasons + for blacklisting a node. (Sreekanth Ramakrishnan via yhemanth) + + MAPREDUCE-817. Add a cache for retired jobs with minimal job info and + provide a way to access history file url. (sharad) + + MAPREDUCE-711. Moved Distributed Cache from Common to Map/Reduce + project. (Vinod Kumar Vavilapalli via yhemanth) + + MAPREDUCE-895. Per the contract elucidated in HADOOP-6201, throw + FileNotFoundException from FileSystem::listStatus rather than returning + null. (Jakob Homan via cdouglas) + + MAPREDUCE-479. Provide full task id to map output servlet rather than the + reduce id, only. (Jiaqi Tan via cdouglas) + + MAPREDUCE-873. Simplify job recovery. Incomplete jobs are resubmitted on + jobtracker restart. Removes a public constructor in JobInProgress. (sharad) + + HADOOP-6230. Moved process tree and memory calculator related classes from + Common to Map/Reduce. (Vinod Kumar Vavilapalli via yhemanth) + + MAPREDUCE-157. Refactor job history APIs and change the history format to + JSON. (Jothi Padmanabhan via sharad) + + MAPREDUCE-849. Rename configuration properties. (Amareshwari Sriramadasu + via sharad) + + MAPREDUCE-1287. Only call the partitioner with more than one reducer. + (cdouglas) + + MAPREDUCE-1385. Use the new UserGroupInformation from HADOOP-6299. + (ddas via omalley) + + MAPREDUCE-1493. Authorization for job-history pages. (vinodkv) + + MAPREDUCE-1607. Task controller may not set permissions for a + task cleanup attempt's log directory (Amareshwari Sriramadasu via vinodkv) + + MAPREDUCE-1683. Remove JNI calls from ClusterStatus cstr. (Arun Murthy and + Luke Lu via cdouglas) + + MAPREDUCE-1855. Makes the refresh methods (for groups and proxy users) + independent of the client side configuration. (Boris Shkolnik via ddas) + + NEW FEATURES + + MAPREDUCE-1774. Large-scale Automated Framework (Sharad Agarwal, Sreekanth + Ramakrishnan, Konstantin Boudnik, at all via cos) + + MAPREDUCE-706. Support for FIFO pools in the fair scheduler. + (Matei Zaharia) + + MAPREDUCE-546. Provide sample fair scheduler config file in conf/ and use + it by default if no other config file is specified. (Matei Zaharia) + + MAPREDUCE-551. Preemption support in the Fair Scheduler. (Matei Zaharia) + + MAPREDUCE-567. Add a new example MR that always fails. (Philip Zeyliger + via tomwhite) + + MAPREDUCE-211. Provides ability to run a health check script on the + tasktracker nodes and blacklist nodes if they are unhealthy. + (Sreekanth Ramakrishnan via yhemanth) + + MAPREDUCE-637. Add an example, distbbp, which able to compute the n th bit + of Pi for some large n. (szetszwo) + + MAPREDUCE-532. Provide a way to limit the number of used slots + per queue in the capacity scheduler. + (Rahul Kumar Singh via yhemanth) + + MAPREDUCE-467. Provide ability to collect statistics about total tasks + and succeeded tasks in different time windows. (sharad) + + MAPREDUCE-740. Log a job-summary at the end of a job, while allowing it + to be configured to use a custom appender if desired. (acmurthy) + + MAPREDUCE-814. Provide a way to configure completed job history files + to be on HDFS. (sharad) + + MAPREDUCE-800. MRUnit should support the new API. (Aaron Kimball via + tomwhite) + + MAPREDUCE-798. MRUnit should be able to test a succession of MapReduce + passes. (Aaron Kimball via tomwhite) + + MAPREDUCE-768. Provide an option to dump jobtracker configuration in JSON + format to standard output. (V.V.Chaitanya Krishna via yhemanth) + + MAPREDUCE-824. Add support for a hierarchy of queues in the capacity + scheduler. (Rahul Kumar Singh via yhemanth) + + MAPREDUCE-751. Add Rumen, a tool for extracting statistics from job tracker + logs and generating job traces for simulation and analysis. (Dick King via + cdouglas) + + MAPREDUCE-830. Add support for splittable compression to TextInputFormats. + (Abdul Qadeer via cdouglas) + + MAPREDUCE-861. Add support for hierarchical queues in the Map/Reduce + framework. (Rahul Kumar Singh via yhemanth) + + MAPREDUCE-776. Add Gridmix, a benchmark processing Rumen traces to simulate + a measured mix of jobs on a cluster. (cdouglas) + + MAPREDUCE-862. Enhance JobTracker UI to display hierarchical queues. + (V.V.Chaitanya Krishna via yhemanth) + + MAPREDUCE-777. Brand new apis to track and query jobs as a + replacement for JobClient. (Amareshwari Sriramadasu via acmurthy) + + MAPREDUCE-775. Add native and streaming support for Vertica as an input + or output format taking advantage of parallel read and write properties of + the DBMS. (Omer Trajman via ddas) + + MAPREDUCE-679. XML-based metrics as JSP servlet for JobTracker. + (Aaron Kimball via tomwhite) + + MAPREDUCE-980. Modify JobHistory to use Avro for serialization. (cutting) + + MAPREDUCE-728. Add Mumak, a Hadoop map/reduce simulator. (Arun C Murthy, + Tamas Sarlos, Anirban Dasgupta, Guanying Wang, and Hong Tang via cdouglas) + + MAPREDUCE-1383. Automates fetching of delegation tokens in File*Formats + Distributed Cache and Distcp. Also, provides a config + mapreduce.job.hdfs-servers that the jobs can populate with a comma + separated list of namenodes. The job client automatically fetches + delegation tokens from those namenodes. (Boris Shkolnik via ddas) + + MAPREDUCE-698. Per-pool task limits for the fair scheduler. + (Kevin Peterson via matei) + + MAPREDUCE-1026. Does mutual authentication of the shuffle + transfers using a shared JobTracker generated key. + (Boris Shkolnik via ddas) + + MAPREDUCE-744. Introduces the notion of a public distributed cache. + (Devaraj Das) + + MAPREDUCE-1338. Introduces the notion of token cache using which + tokens and secrets can be sent by the Job client to the JobTracker. + (Boris Shkolnik via ddas) + + HDFS-503. This patch implements an optional layer over HDFS that + implements offline erasure-coding. It can be used to reduce the + total storage requirements of HDFS. (dhruba) + + MAPREDUCE-1432. Adds hooks in the jobtracker and tasktracker + for loading the tokens in the user's ugi. This is required + for the copying of files from the hdfs. (ddas) + + MAPREDUCE-1335. Adds SASL Kerberos/Digest authentication in MapReduce. + (Kan Zhang via ddas) + + MAPREDUCE-1464. Makes a compatible change in JobTokenIdentifier to + account for HADOOP-6510. (Jitendra Nath Pandey via ddas) + + MAPREDUCE-1433. Add a delegation token for MapReduce. (omalley) + + MAPREDUCE-1307. Introduces the Job level ACLs feature. + (Vinod Kumar Vavilapalli via ddas) + + MAPREDUCE-1430. JobTracker automatically renews delegation tokens for jobs. + (Boris Shkolnik via ddas) + + MAPREDUCE-1455. Introduces job-level authorization for mapreduce servlets. + (Ravi Gummadi via vinodkv) + + IMPROVEMENTS + + MAPREDUCE-463. Makes job setup and cleanup tasks as optional. + (Amareshwari Sriramadasu via sharad) + + MAPREDUCE-502. Allow jobtracker to be configured with zero completed jobs + in memory. (Amar Kamat via sharad) + + MAPREDUCE-416. Moves the history file to a "done" folder whenever a job + completes. (Amar Kamat via ddas) + + MAPREDUCE-646. Increase srcfilelist replication number in dictcp job. + (Ravi Gummadi via szetszwo) + + HADOOP-6106. Updated hadoop-core and test jars from hudson trunk + build #12. (Giridharan Kesavan) + + MAPREDUCE-642. A option to distcp that allows preserving the full + source path of a file in the specified destination directory. + (Rodrigo Schmidt via dhruba) + + MAPREDUCE-686. Move TestSpeculativeExecution.Fake* into a separate class + so that it can be used by other tests. (Jothi Padmanabhan via sharad) + + MAPREDUCE-625. Modify TestTaskLimits to improve execution time. + (Jothi Padmanabhan via sharad) + + MAPREDUCE-465. Deprecate o.a.h.mapred.lib.MultithreadedMapRunner and add + test for o.a.h.mapreduce.lib.MultithreadedMapper. + (Amareshwari Sriramadasu via sharad) + + MAPREDUCE-701. Improves the runtime of the TestRackAwareTaskPlacement + by making it a unit test. (Jothi Padmanabhan via ddas) + + MAPREDUCE-371. Change KeyFieldBasedComparator and KeyFieldBasedPartitioner + to use new api. (Amareshwari Sriramadasu via sharad) + + MAPREDUCE-623. Resolve javac warnings in mapreduce. (Jothi Padmanabhan + via sharad) + + MAPREDUCE-655. Change KeyValueLineRecordReader and KeyValueTextInputFormat + to use new mapreduce api. (Amareshwari Sriramadasu via sharad) + + MAPREDUCE-632. Merge TestCustomOutputCommitter with + TestCommandLineJobSubmission. (Jothi Padmanabhan via sharad) + + MAPREDUCE-627. Improves execution time of TestTrackerBlacklistAcrossJobs. + (Jothi Padmanabhan via ddas) + + MAPREDUCE-630. Improves execution time of TestKillCompletedJob. + (Jothi Padmanabhan via ddas) + + MAPREDUCE-626. Improves the execution time of TestLostTracker. + (Jothi Padmanabhan via ddas) + + MAPREDUCE-353. Makes the shuffle read and connection timeouts + configurable. (Ravi Gummadi via ddas) + + MAPREDUCE-739. Allow relative paths to be created in archives. (Mahadev + Konar via cdouglas) + + MAPREDUCE-772. Merge HADOOP-4010 changes to LineRecordReader into mapreduce + package. (Abdul Qadeer via cdouglas) + + MAPREDUCE-785. Separate sub-test of TestReduceFetch to be included in + MR-670. (Jothi Padmanabhan via cdouglas) + + MAPREDUCE-784. Modify TestUserDefinedCounters to use LocalJobRunner + instead of MiniMR. (Jothi Padmanabhan via sharad) + + HADOOP-6160. Fix releaseaudit target to run on specific directories. + (gkesavan) + + MAPREDUCE-782. Use PureJavaCrc32 in SpillRecord. (Todd Lipcon via + szetszwo) + + MAPREDUCE-369. Change org.apache.hadoop.mapred.lib.MultipleInputs to + use new api. (Amareshwari Sriramadasu via sharad) + + MAPREDUCE-373. Change org.apache.hadoop.mapred.lib.FieldSelectionMapReduce + to use new api. (Amareshwari Sriramadasu via sharad) + + MAPREDUCE-628. Improves the execution time of TestJobInProgress. + (Jothi Padmanabhan via ddas) + + MAPREDUCE-793. Creates a new test that consolidates a few tests to + include in the commit-test list. (Jothi Padmanabhan via ddas) + + MAPREDUCE-797. Adds combiner support to MRUnit MapReduceDriver. + (Aaron Kimball via johan) + + MAPREDUCE-656. Change org.apache.hadoop.mapred.SequenceFile* classes + to use new mapreduce api. (Amareshwari Sriramadasu via sharad) + + MAPREDUCE-670. Creates ant target for 10 mins patch test build. + (Jothi Padmanabhan via gkesavan) + + MAPREDUCE-375. Change org.apache.hadoop.mapred.lib.NLineInputFormat + and org.apache.hadoop.mapred.MapFileOutputFormat to use new api. + (Amareshwari Sriramadasu via ddas) + + MAPREDUCE-779. Added node health failure counts into + JobTrackerStatistics. (Sreekanth Ramakrishnan via yhemanth) + + MAPREDUCE-842. Setup secure permissions for localized job files, + intermediate outputs and log files on tasktrackers. + (Vinod Kumar Vavilapalli via yhemanth) + + MAPREDUCE-478. Allow map and reduce jvm parameters, environment variables + and ulimit to be set separately. + Configuration changes: + add mapred.map.child.java.opts + add mapred.reduce.child.java.opts + add mapred.map.child.env + add mapred.reduce.child.ulimit + add mapred.map.child.env + add mapred.reduce.child.ulimit + deprecated mapred.child.java.opts + deprecated mapred.child.env + deprecated mapred.child.ulimit + (acmurthy) + + MAPREDUCE-767. Remove the dependence on the CLI 2.0 snapshot. + (Amar Kamat via omalley) + + MAPREDUCE-712. Minor efficiency tweaks to RandomTextWriter. (cdouglas) + + MAPREDUCE-870. Remove the job retire thread and the associated + config parameters. (sharad) + + MAPREDUCE-874. Rename the PiEstimator example to QuasiMonteCarlo. + (szetszwo) + + MAPREDUCE-336. Allow logging level of map/reduce tasks to be configurable. + Configuration changes: + add mapred.map.child.log.level + add mapred.reduce.child.log.level + (acmurthy) + + MAPREDUCE-355. Update mapred.join package to use the new API. (Amareshwari + Sriramadasu via cdouglas) + + HADOOP-6184. Updated hadoop common and test jars to get the new API + in Configuration for dumping in JSON format from Hudson trunk build #68. + (yhemanth) + + MAPREDUCE-476. Extend DistributedCache to work locally (LocalJobRunner). + (Philip Zeyliger via tomwhite) + + MAPREDUCE-825. JobClient completion poll interval of 5s causes slow tests + in local mode. (Aaron Kimball via tomwhite) + + MAPREDUCE-910. Support counters in MRUnit. (Aaron Kimball via cdouglas) + + MAPREDUCE-788. Update gridmix2 to use the new API (Amareshwari Sriramadasu + via cdouglas) + + MAPREDUCE-875. Make DBRecordReader execute queries lazily. (Aaron Kimball + via enis) + + MAPREDUCE-318. Modularizes the shuffle code. (Jothi Padmanabhan and + Arun Murthy via ddas) + + MAPREDUCE-936. Allow a load difference for fairshare scheduler. + (Zheng Shao via dhruba) + + MAPREDUCE-370. Update MultipleOutputs to use the API, merge funcitonality + of MultipleOutputFormat. (Amareshwari Sriramadasu via cdouglas) + + MAPREDUCE-898. Changes DistributedCache to use the new API. + (Amareshwari Sriramadasu via ddas) + + MAPREDUCE-144. Includes dump of the process tree in task diagnostics when + a task is killed due to exceeding memory limits. + (Vinod Kumar Vavilapalli via yhemanth) + + MAPREDUCE-945. Modifies MRBench and TestMapRed to use ToolRunner so that + options such as queue name can be passed via command line. + (Sreekanth Ramakrishnan via yhemanth) + + MAPREDUCE-963. Deprecate o.a.h.mapred.FileAlreadyExistsException and + replace it with o.a.h.fs.FileAlreadyExistsException. (Boris Shkolnik + via szetszwo) + + MAPREDUCE-960. Remove an unnecessary intermediate copy and obsolete API + from KeyValueLineRecordReader. (cdouglas) + + MAPREDUCE-930. Modify Rumen to resolve paths in the canonical way, rather + than defaulting to the local filesystem. (cdouglas) + + MAPREDUCE-944. Extend the LoadManager API of the fair-share scheduler + to support regulating tasks for a job based on resources currently in use + by that job. (dhruba) + + MAPREDUCE-973. Move FailJob and SleepJob from examples to test. (cdouglas + via omalley) + + MAPREDUCE-966. Modify Rumen to clean up interfaces and simplify integration + with other tools. (Hong Tang via cdouglas) + + MAPREDUCE-856. Setup secure permissions for distributed cache files. + (Vinod Kumar Vavilapalli via yhemanth) + + MAPREDUCE-885. More efficient SQL queries for DBInputFormat. (Aaron Kimball + via enis) + + MAPREDUCE-284. Enables ipc.client.tcpnodelay in Tasktracker's Child. + (Ravi Gummadi via sharad) + + MAPREDUCE-916. Split the documentation to match the project split. + (Corinne Chandel via omalley) + + MAPREDUCE-649. Validate a copy by comparing the source and destination + checksums in distcp. Also adds an intra-task retry mechanism for errors + detected during the copy. (Ravi Gummadi via cdouglas) + + MAPREDUCE-654. Add a -dryrun option to distcp printing a summary of the + file data to be copied, without actually performing the copy. (Ravi Gummadi + via cdouglas) + + MAPREDUCE-664. Display the number of files deleted by distcp when the + -delete option is specified. (Ravi Gummadi via cdouglas) + + MAPREDUCE-781. Let the name of distcp jobs be configurable. (Venkatesh S + via cdouglas) + + MAPREDUCE-975. Add an API in job client to get the history file url for + a given job id. (sharad) + + MAPREDUCE-905. Add Eclipse launch tasks for MapReduce. (Philip Zeyliger + via tomwhite) + + MAPREDUCE-277. Makes job history counters available on the job history + viewers. (Jothi Padmanabhan via ddas) + + MAPREDUCE-893. Provides an ability to refresh queue configuration + without restarting the JobTracker. + (Vinod Kumar Vavilapalli and Rahul Kumar Singh via yhemanth) + + MAPREDUCE-1011. Add build.properties to svn and git ignore. (omalley) + + MAPREDUCE-954. Change Map-Reduce context objects to be interfaces. + (acmurthy) + + MAPREDUCE-639. Change Terasort example to reflect the 2009 updates. + (omalley) + + MAPREDUCE-1063. Document gridmix benchmark. (cdouglas) + + MAPREDUCE-931. Use built-in interpolation classes for making up task + runtimes in Rumen. (Dick King via cdouglas) + + MAPREDUCE-1012. Mark Context interfaces as public evolving. (Tom White via + cdouglas) + + MAPREDUCE-971. Document use of distcp when copying to s3, managing timeouts + in particular. (Aaron Kimball via cdouglas) + + HDFS-663. DFSIO for append. (shv) + + HDFS-641. Move all of the components that depend on map/reduce to + map/reduce. (omalley) + + HADOOP-5107. Use Maven ant tasks to publish artifacts. (Giridharan Kesavan + via omalley) + + MAPREDUCE-1229. Allow customization of job submission policy in Mumak. + (Hong Tang via cdouglas) + + MAPREDUCE-1317. Reduce the memory footprint of Rumen objects by interning + host Strings. (Hong Tang via cdouglas) + + MAPREDUCE-1097. Add support for Vertica 3.5 to its contrib module. (Omer + Trajman via cdouglas) + + MAPREDUCE-1627. HadoopArchives should not uses a method in DistCp. + (szetszwo) + + MAPREDUCE-1198. Alternatively schedule different types of tasks in + fair share scheduler. (Scott Chen via matei) + + MAPREDUCE-707. Provide a jobconf property for explicitly assigning a job to + a pool in the Fair Scheduler. (Alan Heirich via matei) + + MAPREDUCE-947. Added commitJob and abortJob apis to OutputCommitter. + Enhanced FileOutputCommitter to create a _SUCCESS file for successful + jobs. (Amar Kamat & Jothi Padmanabhan via acmurthy) + + MAPREDUCE-1103. Added more metrics to Jobtracker. (sharad) + + MAPREDUCE-1048. Add occupied/reserved slot usage summary on jobtracker UI. + (Amareshwari Sriramadasu and Hemanth Yamijala via sharad) + + MAPREDUCE-1090. Modified log statement in TaskMemoryManagerThread to + include task attempt id. (yhemanth) + + MAPREDUCE-1189. Reduce ivy console output to ovservable level (cos) + + MAPREDUCE-1167. ProcfsBasedProcessTree collects rss memory information. + (Scott Chen via dhruba) + + MAPREDUCE-1231. Added a new DistCp option, -skipcrccheck, so that the CRC + check during setup can be skipped. (Jothi Padmanabhan via szetszwo) + + MAPREDUCE-1190. Add package documentation for BBP example. + (Tsz Wo (Nicholas) Sze via cdouglas) + + MAPREDUCE-1119. When tasks fail to report status, show tasks's stack dump + before killing. (Aaron Kimball via tomwhite) + + MAPREDUCE-1185. Redirect running job url to history url if job is already + retired. (Amareshwari Sriramadasu and Sharad Agarwal via sharad) + + MAPREDUCE-1050. Introduce a mock object testing framework. (tomwhite) + + MAPREDUCE-1084. Implementing aspects development and fault injeciton + framework for MapReduce. (Sreekanth Ramakrishnan via cos) + + MAPREDUCE-1209. Move common specific part of the test TestReflectionUtils + out of mapred into common. (Todd Lipcon via tomwhite) + + MAPREDUCE-967. TaskTracker does not need to fully unjar job jars. + (Todd Lipcon via tomwhite) + + MAPREDUCE-1083. Changes in MapReduce so that group information of users + can be refreshed in the JobTracker via command line. + (Boris Shkolnik via ddas) + + MAPREDUCE-181. Changes the job submission process to be secure. + (Devaraj Das) + + MAPREDUCE-1250. Refactors the JobToken to use Common's Token interface. + (Kan Zhang via ddas) + + MAPREDUCE-896. Enhance tasktracker to cleanup files that might have + been created by user tasks with non-writable permissions. + (Ravi Gummadi via yhemanth) + + MAPREDUCE-372. Change org.apache.hadoop.mapred.lib.ChainMapper/Reducer + to use new mapreduce api. (Amareshwari Sriramadasu via sharad) + + MAPREDUCE-1295. Add a tool in Rumen for folding and manipulating job + traces. (Dick King via cdouglas) + + MAPREDUCE-1302. TrackerDistributedCacheManager deletes file + asynchronously, thus reducing task initialization delays. + (Zheng Shao via dhruba) + + MAPREDUCE-1218. TaskTrackers send cpu and memory usage of + node to JobTracker. (Scott Chen via dhruba) + + MAPREDUCE-847. Fix Releaseaudit warning count to zero + (Giridharan Kesavan) + + MAPREDUCE-1337. Use generics in StreamJob to improve readability of that + class. (Kay Kay via cdouglas) + + MAPREDUCE-361. Port terasort example to the new mapreduce API. (Amareshwari + Sriramadasu via cdouglas) + + MAPREDUCE-1367. LocalJobRunner should support parallel mapper execution. + (Aaron Kimball via tomwhite) + + MAPREDUCE-64. Eliminate io.sort.record.percent from MapTask configuration. + (cdouglas) + + MAPREDUCE-1440. Replace the long user name in MapReduce with the local + name. (omalley) + + MAPREDUCE-1470. Move delegation tokens from HDFS to Common so that + MapReduce can use them too. (omalley) + + MAPREDUCE-1425. Reduce memory usage by archive. (mahadev via szetszwo) + + MAPREDUCE-1441. Trim whitespace from directory lists pulled from the + configuration. (Todd Lipcon via cdouglas) + + MAPREDUCE-1309. Refactor Rumen trace generator to improve code structure + and add extensible support for log formats. (Dick King via cdouglas) + + MAPREDUCE-1503. Delegation token renewing and cancelling should provide + meaningful exceptions when there are failures instead of returning + false. (omalley) + + HADOOP-6579. Upgrade commons-codec library to 1.4. (omalley) + + MAPREDUCE-1423. Improve performance of CombineFileInputFormat when multiple + pools are configured. (Dhruba Borthakur via zshao) + + MAPREDUCE-1454. Quote user supplied strings in Tracker servlets. (cdouglas) + + MAPREDUCE-1408. Add customizable job submission policies to Gridmix. (Rahul + Singh via cdouglas) + + MAPREDUCE-1527. Better warning logged when mapred.queue.names is + overshadowed by mapred-queues.xml. (Hong Tang via acmurthy) + + MAPREDUCE-1403. Save the size and number of distributed cache artifacts in + the configuration. (Arun Murthy via cdouglas) + + MAPREDUCE-1482. Truncate state string and diagnostic information in + TaskStatus. (Amar Kamat via szetszwo) + + MAPREDUCE-1593. [Rumen] Improvements to random seed generation (tamas via + mahadev) + + MAPREDUCE-1460. Oracle support in DataDrivenDBInputFormat. + (Aaron Kimball via tomwhite) + + MAPREDUCE-1569. Pass configuration through mocked contexts in MRUnit. + (Chris White via cdouglas) + + MAPREDUCE-1590. Move HarFileSystem from Hadoop Common to Mapreduce tools. + (mahadev) + + MAPREDUCE-1629. Get rid of fakeBlockLocations() on HarFileSystem, since + it's not used (mahadev) + + MAPREDUCE-1489. DataDrivenDBInputFormat should not query the database + when generating only one split. (Aaron Kimball via tomwhite) + + MAPREDUCE-1514. Add documentation on replication, permissions, new options, + limitations and internals of har. (mahadev via szetszwo) + + MAPREDUCE-1428. Make block size and the size of archive created files + configurable. (mahadev via szetszwo) + + MAPREDUCE-1656. JobStory should provide queue info. (hong via mahadev) + + MAPREDUCE-1466. Record number of files processed in FileInputFormat in the + Configuration for offline analysis. (Luke Lu and Arun Murthy via cdouglas) + + MAPREDUCE-1538. TrackerDistributedCacheManager manages the + number of files. (Scott Chen via dhruba) + + MAPREDUCE-1673. Scripts to start and stop RaidNode. + (Rodrigo Schmidt via dhruba) + + MAPREDUCE-1659. RaidNode writes temp files on configured tmp directory and + add random numbers to their names to avoid conflicts + (Rodrigo Schmidt via dhruba) + + MAPREDUCE-1221. Allow admins to control physical memory limits per-task + and per-node. (Scott Chen via acmurthy) + + MAPREDUCE-1065. Update mapred tutorial to use the new API. (Aaron Kimball + via cdouglas) + + MAPREDUCE-1304. Add a task counter tracking time spent in GC. (Aaron + Kimball via cdouglas) + + MAPREDUCE-1570. Add grouping comparators to MRUnit. (Chris White via + cdouglas) + + MAPREDUCE-1650. Exclude Private elements from generated MapReduce + Javadoc. (tomwhite) + + MAPREDUCE-1625. Improve grouping of packages in Javadoc. (tomwhite) + + MAPREDUCE-1417. Forrest documentation should be updated to reflect + the changes in MAPREDUCE-744. (Ravi Gummadi via vinodkv) + + MAPREDUCE-1568. TrackerDistributedCacheManager should clean up cache + in a background thread. (Scott Chen via zshao) + + MAPREDUCE-1749. Move configuration strings out of JobContext so that it + can be made public stable. (omalley) + + MAPREDUCE-1623. Apply audience and stability notations to Hadoop + Map-Reduce. (tomwhite via acmurthy) + + MAPREDUCE-1751. Change MapReduce to depend on Hadoop 'common' artifacts + instead of 'core'. (tomwhite) + + MAPREDUCE-1535. Replace usage of FileStatus#isDir(). (Eli Collins via + tomwhite) + + MAPREDUCE-1832. Allow file sizes less than 1MB in DFSIO benchmark. (shv) + + MAPREDUCE-1404. Move Cluster-Setup and Single-Node-Setup Docs from + MapReduce to Common. (tomwhite) + + MAPREDUCE-1697. Document the behavior of -file option and deprecate it + in favour of -files option in streaming. (Amareshwari Sriramadasu + via vinodkv) + + MAPREDUCE-1033. Resolve location of scripts and configuration files after + project split. (tomwhite) + + MAPREDUCE-1018. Document changes to the memory management and scheduling + model. (Hemanth Yamijala via vinodkv) + + MAPREDUCE-1896. [Herriot] New property for multi user list. (Vinay Thota + via cos) + + MAPREDUCE-1812. New properties for suspend and resume process. (Vinay + Thota via cos) + + OPTIMIZATIONS + + MAPREDUCE-270. Fix the tasktracker to optionally send an out-of-band + heartbeat on task-completion for better job-latency. (acmurthy) + Configuration changes: + add mapreduce.tasktracker.outofband.heartbeat + + MAPREDUCE-1186. Modified code in distributed cache to set permissions + only on required set of localized paths. + (Amareshwari Sriramadasu via yhemanth) + + MAPREDUCE-1501. FileInputFormat supports multi-level, recursive + directory listing. (Zheng Shao via dhruba) + + MAPREDUCE-1556. upgrade to Avro 1.3.0. (cutting via tomwhite) + + MAPREDUCE-1613. Install/deploy source jars to Maven repo + (Patrick Angeles via ddas) + + MAPREDUCE-1610. Forrest documentation should be updated to reflect + the changes in MAPREDUCE-856. (Ravi Gummadi via vinodkv) + + MAPREDUCE-1853. Adds caching for TaskAttemptContext in MultipleOutputs. + (Torsten Curdt via amareshwari) + + BUG FIXES + + MAPREDUCE-878. Rename fair scheduler design doc to + fair-scheduler-design-doc.tex and add Apache license header (matei) + + HADOOP-4687. MapReduce is split from Hadoop Core. It is a subproject under + Hadoop (Owen O'Malley) + + HADOOP-6096. Fix Eclipse project and classpath files following project + split. (tomwhite) + + MAPREDUCE-419. Reconcile mapred.userlog.limit.kb defaults in configuration + and code. (Philip Zeyliger via cdouglas) + + MAPREDUCE-2. Fixes a bug in KeyFieldBasedPartitioner in handling empty + keys. (Amar Kamat via sharad) + + MAPREDUCE-130. Delete the jobconf copy from the log directory of the + JobTracker when the job is retired. (Amar Kamat via sharad) + + MAPREDUCE-657. Fix hardcoded filesystem problem in CompletedJobStatusStore. + (Amar Kamat via sharad) + + MAPREDUCE-179. Update progress in new RecordReaders. (cdouglas) + + MAPREDUCE-658. Replace NPE in distcp with a meaningful error message when + the source path does not exist. (Ravi Gummadi via cdouglas) + + MAPREDUCE-671. Update ignore list to include untracked, generated + build artifacts and config files. (cdouglas) + + MAPREDUCE-433. Use more reliable counters in TestReduceFetch. (cdouglas) + + MAPREDUCE-124. Fix a bug in failure handling of abort task of + OutputCommiter. (Amareshwari Sriramadasu via sharad) + + MAPREDUCE-694. Fix to add jsp-api jars to capacity-scheduler classpath. + (Giridharan Kesavan) + + MAPREDUCE-702. Fix eclipse-plugin jar target (Giridharan Kesavan) + + MAPREDUCE-522. Replace TestQueueCapacities with simpler test case to + test integration between capacity scheduler and MR framework. + (Sreekanth Ramakrishnan via yhemanth) + + MAPREDUCE-683. Fixes an initialization problem in the JobHistory. + The initialization of JobHistoryFilesManager is now done in the + JobHistory.init call. (Amar Kamat via ddas) + + MAPREDUCE-708. Fixes a bug to allow updating the reason for + blacklisting a node on the JobTracker UI. + (Sreekanth Ramakrishnan via yhemanth) + + MAPREDUCE-709. Fixes message displayed for a blacklisted node where + the reason for blacklisting is due to the health check script + timing out. (Sreekanth Ramakrishnan via yhemanth) + + MAPREDUCE-676. Existing diagnostic rules fail for MAP ONLY jobs. + (Suhas Gogate via tomwhite) + + MAPREDUCE-722. Fixes a bug with tasktracker reservations for + high memory jobs in capacity scheduler. + (Vinod Kumar Vavilapalli via yhemanth) + + HADOOP-6090. Updates gridmix script to use new mapreduce api output + format. (Amareshwari Sriramadasu via sharad) + + MAPREDUCE-732. Removed spurious log statements in the node + blacklisting logic. (Sreekanth Ramakrishnan via yhemanth) + + MAPREDUCE-734. Fix a ConcurrentModificationException in unreserving + unused reservations for a job when it completes. + (Arun Murthy and Sreekanth Ramakrishnan via yhemanth) + + MAPREDUCE-733. Fix a RuntimeException while unreserving trackers + that are blacklisted for a job. + (Arun Murthy and Sreekanth Ramakrishnan via yhemanth) + + MAPREDUCE-677. Fix timeout in TestNodeRefresh. (Amar Kamat via + sharad) + + MAPREDUCE-153. Fix timeout in TestJobInProgressListener. (Amar + Kamat via sharad) + + MAPREDUCE-742. Fix output messages and java comments in the Pi related + examples. (szetszwo) + + MAPREDUCE-565. Fix partitioner to work with new API. (Owen O'Malley via + cdouglas) + + MAPREDUCE-680. Fix so MRUnit can handle reuse of Writable objects. + (Aaron Kimball via johan) + + MAPREDUCE-18. Puts some checks for cross checking whether a reduce + task gets the correct shuffle data. (Ravi Gummadi via ddas) + + MAPREDUCE-771. Fix scheduling of setup and cleanup tasks to use + free slots instead of tasks for scheduling. (yhemanth) + + MAPREDUCE-717. Fixes some corner case issues in speculative + execution heuristics. (Devaraj Das) + + MAPREDUCE-716. Make DBInputFormat work with Oracle. (Aaron Kimball + via tomwhite) + + MAPREDUCE-735. Fixes a problem in the KeyFieldHelper to do with + the end index for some inputs (Amar Kamat via ddas) + + MAPREDUCE-682. Removes reservations on tasktrackers which are + blacklisted. (Sreekanth Ramakrishnan via yhemanth) + + MAPREDUCE-743. Fixes a problem to do with progress reporting + in the map phase. (Ravi Gummadi via ddas) + + MAPREDUCE-765. Eliminate the deprecated warnings introduced by H-5438. + (He Yongqiang via szetszwo) + + MAPREDUCE-383. Fix a bug in Pipes combiner due to bytes count not + getting reset after the spill. (Christian Kunz via sharad) + + MAPREDUCE-809. Fix job-summary logs to correctly record status of FAILED + and KILLED jobs. (acmurthy) + + MAPREDUCE-792. Fix unchecked warnings in DBInputFormat. (Aaron Kimball + via szetszwo) + + MAPREDUCE-760. Fix a timing issue in TestNodeRefresh. (Amar Kamat via + sharad) + + MAPREDUCE-40. Keep memory management backwards compatible for job + configuration parameters and limits. (Rahul Kumar Singh via yhemanth) + + MAPREDUCE-587. Fixes a OOM issue in TestStreamingExitStatus. + (Amar Kamat via ddas) + + MAPREDUCE-408. Fixes an assertion problem in TestKillSubProcesses + (Ravi Gummadi via ddas) + + MAPREDUCE-659. Fix gridmix2 compilation. (Giridharan Kesavan) + + MAPREDUCE-796. Fixes a ClassCastException in an exception log in + MultiThreadedMapRunner. (Amar Kamat via ddas) + + MAPREDUCE-808. Fixes a serialization problem in TypedBytes. + (Klaas Bosteels via ddas) + + MAPREDUCE-845. Fix a findbugs heap size problem in build.xml and add + a new property findbugs.heap.size. (Lee Tucker via szetszwo) + + MAPREDUCE-838. Fixes a problem in the way commit of task outputs + happens. The bug was that even if commit failed, the task would + be declared as successful. (Amareshwari Sriramadasu via ddas) + + MAPREDUCE-813. Updates Streaming and M/R tutorial documents. + (Corinne Chandel via ddas) + + MAPREDUCE-805. Fixes some deadlocks in the JobTracker due to the fact + the JobTracker lock hierarchy wasn't maintained in some JobInProgress + method calls. (Amar Kamat via ddas) + + MAPREDUCE-799. Fixes so all of the MRUnit self-tests run. + (Aaron Kimball via johan) + + MAPREDUCE-848. Fixes a problem to do with TestCapacityScheduler + failing (Amar Kamat via ddas) + + MAPREDUCE-840. DBInputFormat leaves open transaction. + (Aaron Kimball via tomwhite) + + MAPREDUCE-859. Adds Avro and its dependencies required by Hadoop + common. (Ravi Gummadi via sharad) + + MAPREDUCE-867. Fix ivy conf to look for avro jar from maven repo. + (Giridharan Kesavan) + + MAPREDUCE-877. Added avro as a dependency to contrib ivy settings. + (Tsz Wo (Nicholas) Sze via yhemanth) + + MAPREDUCE-852. In build.xml, remove the Main-Class, which is incorrectly + set in tools, and rename the target "tools-jar" to "tools". (szetszwo) + + MAPREDUCE-773. Sends progress reports for compressed gzip inputs in maps. + Fixes a native direct buffer leak in LineRecordReader classes. + (Hong Tang and ddas) + + MAPREDUCE-832. Reduce number of warning messages printed when + deprecated memory variables are used. (Rahul Kumar Singh via yhemanth) + + MAPREDUCE-745. Fixes a testcase problem to do with generation of JobTracker + IDs. (Amar Kamat via ddas) + + MAPREDUCE-834. Enables memory management on tasktrackers when old + memory management parameters are used in configuration. + (Sreekanth Ramakrishnan via yhemanth) + + MAPREDUCE-818. Fixes Counters#getGroup API. (Amareshwari Sriramadasu + via sharad) + + MAPREDUCE-807. Handles the AccessControlException during the deletion of + mapred.system.dir in the JobTracker. The JobTracker will bail out if it + encounters such an exception. (Amar Kamat via ddas) + + MAPREDUCE-430. Fix a bug related to task getting stuck in case of + OOM error. (Amar Kamat via ddas) + + MAPREDUCE-871. Fix ownership of Job/Task local files to have correct + group ownership according to the egid of the tasktracker. + (Vinod Kumar Vavilapalli via yhemanth) + + MAPREDUCE-911. Fix a bug in TestTaskFail related to speculative + execution. (Amareshwari Sriramadasu via sharad) + + MAPREDUCE-687. Fix an assertion in TestMiniMRMapRedDebugScript. + (Amareshwari Sriramadasu via sharad) + + MAPREDUCE-924. Fixes the TestPipes testcase to use Tool. + (Amareshwari Sriramadasu via sharad) + + MAPREDUCE-903. Add Avro jar to eclipse classpath. + (Philip Zeyliger via tomwhite) + + MAPREDUCE-943. Removes a testcase in TestNodeRefresh that doesn't make + sense in the new Job recovery model. (Amar Kamat via ddas) + + MAPREDUCE-764. TypedBytesInput's readRaw() does not preserve custom type + codes. (Klaas Bosteels via tomwhite) + + HADOOP-6243. Fixes a NullPointerException in handling deprecated keys. + (Sreekanth Ramakrishnan via yhemanth) + + MAPREDUCE-968. NPE in distcp encountered when placing _logs directory on + S3FileSystem. (Aaron Kimball via tomwhite) + + MAPREDUCE-826. harchive doesn't use ToolRunner / harchive returns 0 even + if the job fails with exception (koji Noguchi via mahadev) + + MAPREDUCE-839. unit test TestMiniMRChildTask fails on mac os-x (hong tang + via mahadev) + + MAPREDUCE-112. Add counters for reduce input, output records to the new API. + (Jothi Padmanabhan via cdouglas) + + MAPREDUCE-648. Fix two distcp bugs: (1) it should not launch a job if all + src paths are directories, and (2) it does not skip copying when updating + a single file. (Ravi Gummadi via szetszwo) + + MAPREDUCE-946. Fix a regression in LineRecordReader where the + maxBytesToConsume parameter is not set correctly. (cdouglas) + + MAPREDUCE-977. Missing jackson jars from Eclipse template. (tomwhite) + + MAPREDUCE-988. Fix a packaging issue in the contrib modules. (Hong Tang via + cdouglas) + + MAPREDUCE-971. distcp does not always remove distcp.tmp.dir. (Aaron Kimball + via tomwhite) + + MAPREDUCE-995. Fix a bug in JobHistory where tasks completing after the job + is closed cause a NPE. (Jothi Padmanabhan via cdouglas) + + MAPREDUCE-953. Fix QueueManager to dump queue configuration in JSON format. + (V.V. Chaitanya Krishna via yhemanth) + + MAPREDUCE-645. Prevent distcp from running a job when the destination is a + file, but the source is not. (Ravi Gummadi via cdouglas) + + MAPREDUCE-1002. Flushed writer in JobQueueClient so queue information is + printed correctly. (V.V. Chaitanya Krishna via yhemanth) + + MAPREDUCE-1003. Fix compilation problem in eclipse plugin when + eclipse.home is set. (Ravi Gummadi via yhemanth) + + MAPREDUCE-941. Vaidya script fails on Solaris. (Chad Metcalf + via tomwhite) + + MAPREDUCE-912. Add and standardize Apache license headers. (Chad Metcalf + via cdouglas) + + MAPREDUCE-1022. Fix compilation of vertica testcases. (Vinod Kumar + Vavilapalli via acmurthy) + + MAPREDUCE-1000. Handle corrupt history files in JobHistory.initDone(). + (Jothi Padmanabhan via sharad) + + MAPREDUCE-1028. Fixed number of slots occupied by cleanup tasks to one + irrespective of slot size for the job. + (Ravi Gummadi via yhemanth) + + MAPREDUCE-964. Fixed start and finish times of TaskStatus to be + consistent, thereby fixing inconsistencies in metering tasks. + (Sreekanth Ramakrishnan via yhemanth) + + MAPREDUCE-1076. Deprecate ClusterStatus and add javadoc in ClusterMetrics. + (Amareshwari Sriramadasu via sharad) + + MAPREDUCE-979. Fixed JobConf APIs related to memory parameters to return + values of new configuration variables when deprecated variables are + disabled. (Sreekanth Ramakrishnan via yhemanth) + + MAPREDUCE-1030. Modified scheduling algorithm to return a map and reduce + task per heartbeat in the capacity scheduler. + (Rahul Kumar Singh via yhemanth) + + MAPREDUCE-1071. Use DataInputStream rather than FSDataInputStream in the + JobHistory EventReader. (Hong Tang via cdouglas) + + MAPREDUCE-986. Fix Rumen to work with truncated task lines. (Dick King via + cdouglas) + + MAPREDUCE-1029. Fix failing TestCopyFiles by restoring the unzipping of + HDFS webapps from the hdfs jar. (Aaron Kimball and Jothi Padmanabhan via + cdouglas) + + MAPREDUCE-769. Make findbugs and javac warnings to zero. + (Amareshwari Sriramadasu via sharad) + + MAPREDUCE-1104. Initialize RecoveryManager in JobTracker cstr called by + Mumak. (Hong Tang via cdouglas) + + MAPREDUCE-1061. Add unit test validating byte specifications for gridmix + jobs. (cdouglas) + + MAPREDUCE-1077. Fix Rumen so that truncated tasks do not mark the job as + successful. (Dick King via cdouglas) + + MAPREDUCE-1041. Make TaskInProgress::taskStatuses map package-private. + (Jothi Padmanabhan via cdouglas) + + MAPREDUCE-1070. Prevent a deadlock in the fair scheduler servlet. + (Todd Lipcon via cdouglas) + + MAPREDUCE-1086. Setup Hadoop logging environment for tasks to point to + task related parameters. (Ravi Gummadi via yhemanth) + + MAPREDUCE-1105. Remove max limit configuration in capacity scheduler in + favor of max capacity percentage thus allowing the limit to go over + queue capacity. (Rahul Kumar Singh via yhemanth) + + MAPREDUCE-1016. Make the job history log format JSON. (cutting) + + MAPREDUCE-1038. Weave Mumak aspects only if related files have changed. + (Aaron Kimball via cdouglas) + + MAPREDUCE-1163. Remove unused, hard-coded paths from libhdfs. (Allen + Wittenauer via cdouglas) + + MAPREDUCE-962. Fix a NullPointerException while killing task process + trees. (Ravi Gummadi via yhemanth) + + MAPREDUCE-1177. Correct setup/cleanup inversion in + JobTracker::getTaskReports. (Vinod Kumar Vavilapalli via cdouglas) + + MAPREDUCE-1178. Fix ClassCastException in MultipleInputs by adding + a DelegatingRecordReader. (Amareshwari Sriramadasu and Jay Booth + via sharad) + + MAPREDUCE-1068. Fix streaming job to show proper message if file is + is not present. (Amareshwari Sriramadasu via sharad) + + MAPREDUCE-1147. Add map output counters to new API. (Amar Kamat via + cdouglas) + + MAPREDUCE-915. The debug scripts are run as the job user. (ddas) + + MAPREDUCE-1007. Fix NPE in CapacityTaskScheduler.getJobs(). + (V.V.Chaitanya Krishna via sharad) + + MAPREDUCE-28. Refactor TestQueueManager and fix default ACLs. + (V.V.Chaitanya Krishna and Rahul K Singh via sharad) + + MAPREDUCE-1182. Fix overflow in reduce causing allocations to exceed the + configured threshold. (cdouglas) + + MAPREDUCE-1239. Fix contrib components build dependencies. + (Giridharan Kesavan and omalley) + + MAPREDUCE-787. Fix JobSubmitter to honor user given symlink path. + (Amareshwari Sriramadasu via sharad) + + MAPREDUCE-1249. Update config default value for socket read timeout to + match code default. (Amareshwari Sriramadasu via cdouglas) + + MAPREDUCE-1161. Remove ineffective synchronization in NotificationTestCase. + (Owen O'Malley via cdouglas) + + MAPREDUCE-1244. Fix eclipse-plugin's build dependencies. (gkesavan) + + MAPREDUCE-1075. Fix JobTracker to not throw an NPE for a non-existent + queue. (V.V.Chaitanya Krishna via yhemanth) + + MAPREDUCE-754. Fix NPE in expiry thread when a TT is lost. (Amar Kamat + via sharad) + + MAPREDUCE-1074. Document Reducer mark/reset functionality. (Jothi + Padmanabhan via cdouglas) + + MAPREDUCE-1267. Fix typo in mapred-default.xml. (Todd Lipcon via cdouglas) + + MAPREDUCE-952. Remove inadvertently reintroduced Task.Counter enum. (Jothi + Padmanabhan via cdouglas) + + MAPREDUCE-1230. Fix handling of null records in VerticaInputFormat. (Omer + Trajman via cdouglas) + + MAPREDUCE-1171. Allow shuffle retries and read-error reporting to be + configurable. (Amareshwari Sriramadasu via acmurthy) + + MAPREDUCE-879. Fix broken unit test TestTaskTrackerLocalization on MacOS. + (Sreekanth Ramakrishnan via yhemanth) + + MAPREDUCE-1124. Fix imprecise byte counts in Gridmix. (cdouglas) + + MAPREDUCE-1222. Add an option to exclude numeric IP addresses in topologies + processed by Mumak. (Hong Tang via cdouglas) + + MAPREDUCE-1284. Fix fts_open() call in task-controller that was failing + LinuxTaskController unit tests. (Ravi Gummadi via yhemanth) + + MAPREDUCE-1143. Fix running task counters to be updated correctly + when speculative attempts are running for a TIP. + (Rahul Kumar Singh via yhemanth) + + MAPREDUCE-1241. Use a default queue configuration in JobTracker when + mapred-queues.xml is unavailable. (Todd Lipcon via cdouglas) + + MAPREDUCE-1301. Fix set up of permission checking script used in + localization tests. (Amareshwari Sriramadasu via yhemanth) + + MAPREDUCE-1286. Remove quoting from client opts in TaskRunner. (Yuri + Pradkin via cdouglas) + + MAPREDUCE-1059. Use distcp.bytes.per.map when adding sync markers in + distcp. (Aaron Kimball via cdouglas) + + MAPREDUCE-1009. Update forrest documentation describing hierarchical + queues. (Vinod Kumar Vavilapalli via yhemanth) + + MAPREDUCE-1342. Fixed deadlock in global blacklisting of tasktrackers. + (Amareshwari Sriramadasu via acmurthy) + + MAPREDUCE-1316. Fixes a memory leak of TaskInProgress instances in + the jobtracker. (Amar Kamat via yhemanth) + + MAPREDUCE-1359. TypedBytes TestIO doesn't mkdir its test dir first. + (Anatoli Fomenko via cos) + + MAPREDUCE-1314. Correct errant mapreduce.x.mapreduce.x replacements from + bulk change. (Amareshwari Sriramadasu via cdouglas) + + MAPREDUCE-1365. Restore accidentally renamed test in + TestTaskTrackerBloacklisting. (Amareshwari Sriramadasu via cdouglas) + + MAPREDUCE-1406. Fix spelling of JobContext.MAP_COMBINE_MIN_SPILLS. + (cdouglas) + + MAPREDUCE-1369. JUnit tests should never depend on anything in conf + (Anatoli Fomenko via cos) + + MAPREDUCE-1412. Fix timer granularity issue causing failures in + TestTaskTrackerBlacklisting. (cdouglas) + + MAPREDUCE-1448. Respect --config option in Mumak script. (Hong Tang via + cdouglas) + + MAPREDUCE-1251. c++ utils doesn't compile. (Eli Collins via tomwhite) + + MAPREDUCE-1522. FileInputFormat may use the default FileSystem for the + input path. (Tsz Wo (Nicholas), SZE via cdouglas) + + MAPREDUCE-1407. Update javadoc in mapreduce.{Mapper,Reducer} to match + actual usage. (Benoit Sigoure via cdouglas) + + MAPREDUCE-1258. Fix fair scheduler event log not logging job info. + (matei) + + MAPREDUCE-1089. Fix NPE in fair scheduler preemption when tasks are + scheduled but not running. (Todd Lipcon via matei) + + MAPREDUCE-1014. Fix the libraries for common and hdfs. (omalley) + + MAPREDUCE-1111. JT Jetty UI not working if we run mumak.sh + off packaged distribution directory. (hong tang via mahadev) + + MAPREDUCE-1133. Eclipse .classpath template has outdated jar files and is + missing some new ones. (cos) + + MAPREDUCE-1098. Fixed the distributed-cache to not do i/o while holding a + global lock. (Amareshwari Sriramadasu via acmurthy) + + MAPREDUCE-1158. Fix JT running maps and running reduces metrics. + (sharad) + + MAPREDUCE-1160. Reduce verbosity of log lines in some Map/Reduce classes + to avoid filling up jobtracker logs on a busy cluster. + (Ravi Gummadi and Hong Tang via yhemanth) + + MAPREDUCE-1153. Fix tasktracker metrics when trackers are decommissioned. + (sharad) + + MAPREDUCE-1128. Fix MRUnit to prohibit iterating over values twice. (Aaron + Kimball via cdouglas) + + MAPREDUCE-665. Move libhdfs to HDFS subproject. (Eli Collins via dhruba) + + MAPREDUCE-1196. Fix FileOutputCommitter to use the deprecated cleanupJob + api correctly. (acmurthy) + + MAPREDUCE-1244. Fix eclipse-plugin's build dependencies. (gkesavan) + + MAPREDUCE-1140. Fix DistributedCache to not decrement reference counts for + unreferenced files in error conditions. + (Amareshwari Sriramadasu via yhemanth) + + MAPREDUCE-1245. Fix TestFairScheduler failures by instantiating lightweight + Jobtracker. (sharad) + + MAPREDUCE-1260. Update Eclipse configuration to match changes to Ivy + configuration. (Edwin Chan via cos) + + MAPREDUCE-1152. Distinguish between failed and killed tasks in + JobTrackerInstrumentation. (Sharad Agarwal via cdouglas) + + MAPREDUCE-1285. In DistCp.deleteNonexisting(..), get class from the + parameter instead of using FileStatus.class. (Peter Romianowski via + szetszwo) + + MAPREDUCE-1294. Build fails to pull latest hadoop-core-* artifacts (cos) + + MAPREDUCE-1213. TaskTrackers restart is faster because it deletes + distributed cache directory asynchronously. (Zheng Shao via dhruba) + + MAPREDUCE-1265. The task attempt error log prints the name of the + tasktracker machine. (Scott Chen via dhruba) + + MAPREDUCE-1201. ProcfsBasedProcessTree collects CPU usage information. + (Scott Chen via dhruba) + + MAPREDUCE-1326. fi tests don't use fi-site.xml (cos) + + MAPREDUCE-1165. Replace non-portable function name with C99 equivalent. + (Allen Wittenauer via cdouglas) + + MAPREDUCE-1331. Fixes a typo in a testcase (Devaraj Das) + + MAPREDUCE-1293. AutoInputFormat doesn't work with non-default FileSystems. + (Andrew Hitchcock via tomwhite) + + MAPREDUCE-1131. Using profilers other than hprof can cause JobClient to + report job failure. (Aaron Kimball via tomwhite) + + MAPREDUCE-1155. Streaming tests swallow exceptions. + (Todd Lipcon via tomwhite) + + MAPREDUCE-1212. Mapreduce contrib project ivy dependencies are not included + in binary target. (Aaron Kimball via tomwhite) + + MAPREDUCE-1388. Move the HDFS RAID package from HDFS to MAPREDUCE. + (Eli Collins via dhruba) + + MAPREDUCE-1322. Defines default value for staging directory to be user + based fixing a failing streaming test. + (Devaraj Das and Amareshwari Sriramadasu via yhemanth) + + MAPREDUCE-899. Modified LinuxTaskController to check that task-controller + has right permissions and ownership before performing any actions. + (Amareshwari Sriramadasu via yhemanth) + + MAPREDUCE-1443. DBInputFormat can leak connections. + (Aaron Kimball via tomwhite) + + MAPREDUCE-1457. Fixes JobTracker to get the FileSystem object within + getStagingAreaDir within a privileged block. Fixes Child.java to use the + appropriate UGIs while getting the TaskUmbilicalProtocol proxy and + while executing the task. (Jakob Homan via ddas) + + MAPREDUCE-1399. The archive command shows a null error message (nicholas + via mahadev) + + MAPREDUCE-1305. Improve efficiency of distcp -delete. (Peter Romianowski + via cdouglas) + + MAPREDUCE-1474. Update forrest documentation for Hadoop Archives. (Mahadev + Konar via cdouglas) + + MAPREDUCE-1400. Use tr rather than sed to effect literal substitution in + the build script. (Allen Wittenauer via cdouglas) + + MAPREDUCE-1358. Avoid false positives in OutputLogFilter. (Todd Lipcon via + cdouglas) + + MAPREDUCE-1490. Fix a NullPointerException that could occur during + instantiation and initialization of the DistributedRaidFileSystem. + (Rodrigo Schmidt via dhruba) + + MAPREDUCE-1476. Fix the M/R framework to not call commit for special + tasks like job setup/cleanup and task cleanup. + (Amareshwari Sriramadasu via yhemanth) + + MAPREDUCE-1398. Fix TaskLauncher to stop waiting for slots on a TIP that + is killed / failed. + (Amareshwari Sriramadasu via yhemanth) + + MAPREDUCE-1491. The parity files created by the RAID are combined + using Hadoop Archive Files (HAR). (Rodrigo Schmidt via dhruba) + + MAPREDUCE-1378. URL encode link in jobhistory.jsp to avoid errors caused by + unescaped characters. (E. Sammer via cdouglas) + + MAPREDUCE-1519. RaidNode fails to create new parity file + if an older version already exists. (Rodrigo Schmidt via dhruba) + + MAPREDUCE-1537. Fixes a compilation problem in a testcase after commit + HDFS-984. (Jitendra Nath Pandey via ddas) + + MAPREDUCE-1537. The patch makes the job client call the getDelegationToken + only when security is enabled. (Jitendra Nath Pandey via ddas) + + MAPREDUCE-1510. RAID should regenerate parity files if they get deleted. + (Rodrigo Schmidt via dhruba) + + MAPREDUCE-1421. Fix the LinuxTaskController tests failing on trunk after + the commit of MAPREDUCE-1385. (Amareshwari Sriramadasu via vinodkv) + + MAPREDUCE-1520. Fix TestMiniMRLocalFS failure caused by regression in + getting user working dir. (Amareshwari Sriramadasu via cdouglas) + + MAPREDUCE-1512. RAID uses HarFileSystem directly instead of + FileSystem.get (Rodrigo Schmidt via dhruba) + + MAPREDUCE-1435. Fix symlink handling in task work directory when + cleaning up, essentially to avoid following links. + (Ravi Gummadi via yhemanth) + + MAPREDUCE-1518. RaidNode does not run the deletion check on the + directory that stores the parity files. (Rodrigo Schmidt via dhruba) + + MAPREDUCE-1573. TestStreamingAsDifferentUser fails if run as tt_user. + (Ravi Gummadi via vinodkv) + + MAPREDUCE-927. Cleanup of task-logs should happen in TaskTracker instead + of the Child. (Amareshwari Sriramadasu via vinodkv) + + MAPREDUCE-1578. Decouple HadoopArchives vesrion from HarFileSystem version. + (Rodrigo Schmidt via szetszwo) + + MAPREDUCE-1422. Fix cleanup of localized job directory to work if files + with non-deletable permissions are created within it. + (Amar Kamat via yhemanth) + + MAPREDUCE-1306. Randomize the arrival of heartbeat responses in Mumak. + (Tamas Sarlos via cdouglas) + + MAPREDUCE-1579. archive: check and possibly replace the space charater + in source paths. (szetszwo) + + MAPREDUCE-1536. DataDrivenDBInputFormat does not split date columns correctly. + (Aaron Kimball via enis) + + MAPREDUCE-890. After HADOOP-4491, the user who started mapred system is + not able to run job. (Ravi Gummadi via vinodkv) + + MAPREDUCE-1615. Fix compilation of TestSubmitJob. (cdouglas) + + MAPREDUCE-1508. Protect against NPE in TestMultipleLevelCaching. (Aaron + Kimball via cdouglas) + + MAPREDUCE-1497. Suppress spurious findbugs warning about IndexCache + synchronization. (Amareshwari Sriramadasu via cdouglas) + + MAPREDUCE-1420. Fix TestTTResourceReporting failure. (Scott Chen via + cdouglas) + + MAPREDUCE-1480. Correctly initialize child RecordReaders in + CombineFileInputFormat. (Aaron Kimball via cdouglas) + + MAPREDUCE-1348. Fix block forensics packaging. (Tom White via cdouglas) + + MAPREDUCE-1628. HarFileSystem shows incorrect replication numbers and + permissions. (szetszwo via mahadev) + + MAPREDUCE-1602. Fix the error message for the case that src does not + exist. (szetszwo) + + MAPREDUCE-1585. Create Hadoop Archives version 2 with filenames + URL-encoded (rodrigo via mahadev) + + MAPREDUCE-1523. Sometimes rumen trace generator fails to extract the job + finish time. (dick king via mahadev) + + MAPREDUCE-1635. ResourceEstimator does not work after MAPREDUCE-842. + (Amareshwari Sriramadasu via vinodkv) + + MAPREDUCE-889. binary communication formats added to Streaming by + HADOOP-1722 should be documented. (Klaas Bosteels via tomwhite) + + MAPREDUCE-1031. ant tar target doens't seem to compile tests in contrib + projects. (Aaron Kimball via tomwhite) + + MAPREDUCE-1692. Removed unused testcase TestStreamedMerge. + (Sreekanth Ramakrishnan and Amareshwari Sriramadasu via yhemanth) + + MAPREDUCE-1062. Fix ReliabilityTest to work with retired jobs. (Sreekanth + Ramakrishnan via cdouglas) + + MAPREDUCE-1409. IOExceptions thrown from FIleOutputCommitter::abortTask + should cause the task to fail. (Amareshwari Sriramadasu via cdouglas) + + MAPREDUCE-1695. Include capacity scheduler in findbugs and javadoc-dev + targets and also fix existing warnings. (Hong Tang via yhemanth) + + MAPREDUCE-1494. Ensure TestJobDirCleanup verifies the correct paths. + (Amareshwari Sriramadasu via cdouglas) + + MAPREDUCE-1622. Include missing slf4j dependencies. (cdouglas) + + MAPREDUCE-1515. Accept java5.home from build.properties, not only from the + command line when building forrest docs. (Al Thompson via cdouglas) + + MAPREDUCE-1618. Add missing javadoc to JobStatus::*JobAcls. (Amareshwari + Sriramadasu via cdouglas) + + MAPREDUCE-1219. Remove job level metrics from jobtracker metrics to ease + undue load on jobtracker. (Sreekanth Ramakrishnan via sharad) + + MAPREDUCE-1604. Add Forrest documentation for Job ACLs. + (Amareshwari Sriramadasu via yhemanth) + + MAPREDUCE-1705. Archiving and Purging of HDFS parity files should + handle globbed policies accurately. (Rodrigo Schmidt via dhruba) + + MAPREDUCE-1612. job conf file is not accessible from job history web page. + (Ravi Gummadi and Sreekanth Ramakrishnan via vinodkv) + + MAPREDUCE-1397. NullPointerException observed during task failures. + (Amareshwari Sriramadasu via vinodkv) + + MAPREDUCE-1728. Oracle timezone strings do not match Java. + (Aaron Kimball via tomwhite) + + MAPREDUCE-1609. TaskTracker.localizeJob should not set permissions on + job log directory recursively. (Amareshwari Sriramadasu via vinodkv) + + MAPREDUCE-1657. After task logs directory is deleted, tasklog servlet + displays wrong error message about job ACLs. (Ravi Gummadi via vinodkv) + + MAPREDUCE-1727. TestJobACLs fails after HADOOP-6686. (Ravi Gummadi via vinodkv) + + MAPREDUCE-1611. Refresh nodes and refresh queues doesnt work with service + authorization enabled. (Amar Kamat via vinodkv) + + MAPREDUCE-1276. Correct flaws in the shuffle related to connection setup + and failure attribution. (Amareshwari Sriramadasu via cdouglas) + + MAPREDUCE-1372. ConcurrentModificationException in JobInProgress. + (Dick King and Amareshwari Sriramadasu via tomwhite) + + MAPREDUCE-118. Fix Job.getJobID(). (Amareshwari Sriramadasu via sharad) + + MAPREDUCE-913. TaskRunner crashes with NPE resulting in held up slots, + UNINITIALIZED tasks and hung TaskTracker. (Amareshwari Sriramadasu and + Sreekanth Ramakrishnan via vinodkv) + + MAPREDUCE-1725. Fix MapReduce API incompatibilities between 0.20 and 0.21. + (tomwhite) + + MAPREDUCE-1606. TestJobACLs may timeout as there are no slots for launching + JOB_CLEANUP task. (Ravi Gummadi via vinodkv) + + MAPREDUCE-1765. Correct streaming documentation for StreamXmlRecordReader. + (Corinne Chandel via amareshwari) + + MAPREDUCE-1880. Fix BigDecimal.divide(..) in the pi example. (szetszwo) + + MAPREDUCE-1885. Revert FileSystem create method that takes CreateFlags + (MapReduce part of HADOOP-6826). (Ravi Gummadi via tomwhite) + + MAPREDUCE-1870. Harmonize MapReduce JAR library versions with Common and + HDFS. (tomwhite) + + MAPREDUCE-1791. Remote cluster control functionality needs JavaDocs + improvement (Konstantin Boudnik) + + MAPREDUCE-1942. 'compile-fault-inject' should never be called directly. + (Konstantin Boudnik) + + MAPREDUCE-1876. Fixes TaskAttemptStartedEvent to correctly log event type + for all task types. (Amar Kamat via amareshwari) + + MAPREDUCE-1926. MapReduce distribution is missing build-utils.xml. + (tomwhite) + + MAPREDUCE-2012. Some contrib tests fail in branch 0.21 and trunk. + (Amareshwari Sriramadasu via tomwhite) + + MAPREDUCE-1980. Fixes TaskAttemptUnsuccessfulCompletionEvent and + TaskAttemptFinishedEvent to correctly log event type for all task types. + (Amar Kamat via amareshwari) + + MAPREDUCE-1856. Extract a subset of tests for smoke (DOA) validation (cos) + diff --git a/aarch64/share/doc/hadoop/mapreduce/LICENSE.txt b/aarch64/share/doc/hadoop/mapreduce/LICENSE.txt new file mode 100644 index 0000000..59bcdbc --- /dev/null +++ b/aarch64/share/doc/hadoop/mapreduce/LICENSE.txt @@ -0,0 +1,244 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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Define constraints on Auxiliary Service names. Change + ShuffleHandler service name from mapreduce.shuffle to + mapreduce_shuffle (Xuan Gong via sseth) + + NEW FEATURES + + IMPROVEMENTS + + YARN-1246. Added application finish-status to ApplicationSummary for the sake + of testing given ApplicationHistoryServer is not yet ready. (Arpit Gupta via + vinodkv) + + YARN-899. Added back queue level administrator-acls so that there is no + regression w.r.t 1.x. (Xuan Gong via vinodkv) + + YARN-1228. Clean up Fair Scheduler configuration loading. (Sandy Ryza) + + YARN-1213. Restore config to ban submitting to undeclared pools in the + Fair Scheduler. (Sandy Ryza) + + YARN-1277. Added a policy based configuration for http/https in common + HttpServer and using the same in YARN - related to per project https config + support via HADOOP-10022. (Suresh Srinivas and Omkar Vinit Joshi via vinodkv) + + OPTIMIZATIONS + + BUG FIXES + + YARN-1128. FifoPolicy.computeShares throws NPE on empty list of Schedulables + (Karthik Kambatla via Sandy Ryza) + + YARN-1214. Register ClientToken MasterKey in SecretManager after it is + saved (Jian He via bikas) + + YARN-49. Improve distributed shell application to work on a secure cluster. + (Vinod Kumar Vavilapalli via hitesh) + + YARN-1157. Fixed ResourceManager UI to behave correctly when apps like + distributed-shell do not set tracking urls. (Xuan Gong via vinodkv) + + YARN-1221. With Fair Scheduler, reserved MB reported in RM web UI increases + indefinitely (Siqi Li via Sandy Ryza) + + YARN-1247. test-container-executor has gotten out of sync with the changes to + container-executor. (rvs via tucu) + + YARN-1070. Fixed race conditions in NodeManager during container-kill. + (Zhijie Shen via vinodkv) + + YARN-1215. Yarn URL should include userinfo. (Chuan Liu via cnauroth) + + YARN-1262. TestApplicationCleanup relies on all containers assigned in a + single heartbeat (Karthik Kambatla via Sandy Ryza) + + YARN-1260. Added webapp.http.address to yarn-default.xml so that default + install with https enabled doesn't have broken link on NM UI. (Omkar Vinit + Joshi via vinodkv) + + YARN-1141. Updating resource requests should be decoupled with updating + blacklist (Zhijie Shen via bikas) + + YARN-876. Node resource is added twice when node comes back from unhealthy + to healthy. (Peng Zhang via Sandy Ryza) + + YARN-890. Ensure CapacityScheduler doesn't round-up metric for available + resources. (Xuan Gong & Hitesh Shah via acmurthy) + + YARN-621. Changed YARN web app to not add paths that can cause duplicate + additions of authenticated filters there by causing kerberos replay errors. + (Omkar Vinit Joshi via vinodkv) + + YARN-1236. FairScheduler setting queue name in RMApp is not working. + (Sandy Ryza) + + YARN-1256. NM silently ignores non-existent service in + StartContainerRequest (Xuan Gong via bikas) + + YARN-1149. NM throws InvalidStateTransitonException: Invalid event: + APPLICATION_LOG_HANDLING_FINISHED at RUNNING (Xuan Gong via hitesh) + + YARN-1271. "Text file busy" errors launching containers again + (Sandy Ryza) + + YARN-1131. $yarn logs command should return an appropriate error message if + YARN application is still running. (Siddharth Seth via hitesh) + + YARN-1219. FSDownload changes file suffix making FileUtil.unTar() throw + exception. (Shanyu Zhao via cnauroth) + + YARN-1251. TestDistributedShell#TestDSShell failed with timeout. (Xuan Gong + via hitesh) + + YARN-1167. Fixed Distributed Shell to not incorrectly show empty hostname + on RM UI. (Xuan Gong via vinodkv) + + YARN-1254. Fixed NodeManager to not pollute container's credentials. (Omkar + Vinit Joshi via vinodkv) + + YARN-1273. Fixed Distributed-shell to account for containers that failed + to start. (Hitesh Shah via vinodkv) + + YARN-1032. Fixed NPE in RackResolver. (Lohit Vijayarenu via acmurthy) + + YARN-1090. Fixed CS UI to better reflect applications as non-schedulable + and not as pending. (Jian He via acmurthy) + + YARN-1274. Fixed NodeManager's LinuxContainerExecutor to create user, app-dir + and log-dirs correctly even when there are no resources to localize for the + container. (Siddharth Seth via vinodkv) + + YARN-1278. Fixed NodeManager to not delete local resources for apps on resync + command from RM - a bug caused by YARN-1149. (Hitesh Shah via vinodkv) + +Release 2.1.1-beta - 2013-09-23 + + INCOMPATIBLE CHANGES + + YARN-707. Added user information also in the YARN ClientToken so that AMs + can implement authorization based on incoming users. (Jason Lowe via vinodkv) + + NEW FEATURES + + IMPROVEMENTS + + YARN-589. Expose a REST API for monitoring the fair scheduler (Sandy Ryza). + + YARN-1074. Cleaned up YARN CLI application list to only display running + applications by default. (Xuan Gong via vinodkv) + + YARN-1093. Corrections to Fair Scheduler documentation (Wing Yew Poon via + Sandy Ryza) + + YARN-942. In Fair Scheduler documentation, inconsistency on which + properties have prefix (Akira Ajisaka via Sandy Ryza) + + YARN-905. Add state filters to nodes CLI (Wei Yan via Sandy Ryza) + + YARN-1083. Changed ResourceManager to fail when the expiry interval is less + than the configured node-heartbeat interval. (Zhijie Shen via vinodkv) + + YARN-1081. Made a trivial change to YARN node CLI header to avoid potential + confusion. (Akira AJISAKA via vinodkv) + + YARN-1034. Remove "experimental" in the Fair Scheduler documentation. + (Karthik Kambatla via Sandy Ryza) + + YARN-1080. Improved help message for "yarn logs" command. (Xuan Gong via + vinodkv) + + YARN-771. AMRMClient support for resource blacklisting (Junping Du via + bikas) + + YARN-1117. Improved help messages for "yarn application" and "yarn node" + commands. (Xuan Gong via vinodkv) + + YARN-758. Augment MockNM to use multiple cores (Karthik Kambatla via + Sandy Ryza) + + YARN-1120. Made ApplicationConstants.Environment.USER definition OS neutral + as the corresponding value is now set correctly end-to-end. (Chuan Liu via + vinodkv) + + YARN-1124. Modified YARN CLI application list to display new and submitted + applications together with running apps by default, following up YARN-1074. + (Xuan Gong via vinodkv) + + YARN-1065. NM should provide AuxillaryService data to the container (Xuan + Gong via bikas) + + YARN-696. Changed RMWebservice apps call to take in multiple application + states. (Trevor Lorimer via vinodkv) + + YARN-910. Augmented auxiliary services to listen for container starts and + completions in addition to application events. (Alejandro Abdelnur via + vinodkv) + + YARN-1137. Add support whitelist for system users to Yarn + container-executor.c. (rvs via tucu) + + YARN-1001. Added a web-service to get statistics about per application-type + per state for consumption by downstream projects. (Zhijie Shen via vinodkv) + + YARN-1203. Changed YARN web-app proxy to handle http and https URLs from + AM registration and finish correctly. (Omkar Vinit Joshi via vinodkv) + + YARN-1204. Added separate configuration properties for https for RM and NM + without which servers enabled with https will also start on http ports. + (Omkar Vinit Joshi via vinodkv) + + OPTIMIZATIONS + + BUG FIXES + + YARN-948. Changed ResourceManager to validate the release container list + before actually releasing them. (Omkar Vinit Joshi via vinodkv) + + YARN-966. Fixed ContainerLaunch to not fail quietly when there are no + localized resources due to some other failure. (Zhijie Shen via vinodkv) + + YARN-502. Fixed a state machine issue with RMNode inside ResourceManager + which was crashing scheduler. (Mayank Bansal via vinodkv) + + YARN-573. Shared data structures in Public Localizer and Private Localizer + are not Thread safe. (Omkar Vinit Joshi via jlowe) + + YARN-903. Changed ContainerManager to suppress unnecessary warnings when + stopping already stopped containers. (Omkar Vinit Joshi via vinodkv) + + YARN-906. Fixed a bug in NodeManager where cancelling ContainerLaunch at + KILLING state causes that the container to hang. (Zhijie Shen via vinodkv) + + YARN-994. HeartBeat thread in AMRMClientAsync does not handle runtime + exception correctly (Xuan Gong via bikas) + + YARN-337. RM handles killed application tracking URL poorly (jlowe) + + YARN-107. Fixed ResourceManager and clients to better handle + forceKillApplication on non-running and finished applications. (Xuan Gong + via vinodkv) + + YARN-643. Fixed ResourceManager to remove all tokens consistently on app + finish. (Xuan Gong via vinodkv) + + YARN-1006. Fixed broken rendering in the Nodes list web page on the RM web + UI. (Xuan Gong via vinodkv) + + YARN-881. Priority#compareTo method seems to be wrong. (Jian He via bikas) + + YARN-1082. Create base directories on HDFS after RM login to ensure RM + recovery doesn't fail in secure mode. (vinodkv via acmurthy) + + YARN-1085. Modified YARN and MR2 web-apps to do HTTP authentication in + secure setup with kerberos. (Omkar Vinit Joshi via vinodkv) + + YARN-1094. Fixed a blocker with RM restart code because of which RM crashes + when try to recover an existing app. (vinodkv) + + YARN-1008. MiniYARNCluster with multiple nodemanagers, all nodes have same + key for allocations. (tucu) + + YARN-602. Fixed NodeManager to not let users override some mandatory + environmental variables. (Kenji Kikushima via vinodkv) + + YARN-1101. Active nodes can be decremented below 0 (Robert Parker + via tgraves) + + YARN-981. Fixed YARN webapp so that /logs servlet works like before. (Jian He + via vinodkv) + + YARN-1077. Fixed TestContainerLaunch test failure on Windows. (Chuan Liu via + vinodkv) + + YARN-957. Fixed a bug in CapacityScheduler because of which requests that + need more than a node's total capability were incorrectly allocated on that + node causing apps to hang. (Omkar Vinit Joshi via vinodkv) + + YARN-1107. Fixed a bug in ResourceManager because of which RM in secure mode + fails to restart. (Omkar Vinit Joshi via vinodkv) + + YARN-1049. ContainerExistStatus should define a status for preempted + containers. (tucu) + + YARN-1144. Unmanaged AMs registering a tracking URI should not be + proxy-fied. (tucu) + + YARN-1152. Fixed a bug in ResourceManager that was causing clients to get + invalid client token key errors when an appliation is about to finish. + (Jason Lowe via vinodkv) + + YARN-292. Fixed FifoScheduler and FairScheduler to make their applications + data structures thread safe to avoid RM crashing with + ArrayIndexOutOfBoundsException. (Zhijie Shen via vinodkv) + + YARN-1025. ResourceManager and NodeManager do not load native libraries on + Windows. (cnauroth) + + YARN-1176. RM web services ClusterMetricsInfo total nodes doesn't include + unhealthy nodes (Jonathan Eagles via tgraves) + + YARN-1078. TestNodeManagerResync, TestNodeManagerShutdown, and + TestNodeStatusUpdater fail on Windows. (Chuan Liu via cnauroth) + + YARN-1194. TestContainerLogsPage fails with native builds (Roman Shaposhnik + via jlowe) + + YARN-1116. Populate AMRMTokens back to AMRMTokenSecretManager after RM + restarts (Jian He via bikas) + + YARN-1189. NMTokenSecretManagerInNM is not being told when applications + have finished (Omkar Vinit Joshi via jlowe) + + YARN-540. Race condition causing RM to potentially relaunch already + unregistered AMs on RM restart (Jian He via bikas) + + YARN-1184. ClassCastException during preemption enforcement. (cdouglas) + +Release 2.1.0-beta - 2013-08-22 + + INCOMPATIBLE CHANGES + + YARN-396. Rationalize AllocateResponse in RM Scheduler API. (Zhijie Shen + via hitesh) + + YARN-439. Flatten NodeHeartbeatResponse. (Xuan Gong via sseth) + + YARN-440. Flatten RegisterNodeManagerResponse. (Xuan Gong via sseth) + + YARN-536. Removed the unused objects ContainerStatus and ContainerStatus from + Container which also don't belong to the container. (Xuan Gong via vinodkv) + + YARN-486. Changed NM's startContainer API to accept Container record given by + RM as a direct parameter instead of as part of the ContainerLaunchContext + record. (Xuan Gong via vinodkv) + + YARN-444. Moved special container exit codes from YarnConfiguration to API + where they belong. (Sandy Ryza via vinodkv) + + YARN-441. Removed unused utility methods for collections from two API + records. (Xuan Gong via vinodkv) + + YARN-561. Modified NodeManager to set key information into the environment + of every container that it launches. (Xuan Gong via vinodkv) + + YARN-579. Stop setting the Application Token in the AppMaster env, in + favour of the copy present in the container token field. + (Vinod Kumar Vavilapalli via sseth) + + YARN-629. Make YarnRemoteException not be rooted at IOException. (Xuan Gong + via vinodkv) + + YARN-633. Changed RMAdminProtocol api to throw IOException and + YarnRemoteException. (Xuan Gong via vinodkv) + + YARN-632. Changed ContainerManager api to throw IOException and + YarnRemoteException. (Xuan Gong via vinodkv) + + YARN-631. Changed ClientRMProtocol api to throw IOException and + YarnRemoteException. (Xuan Gong via vinodkv) + + YARN-630. Changed AMRMProtocol api to throw IOException and + YarnRemoteException. (Xuan Gong via vinodkv) + + YARN-615. Rename ContainerLaunchContext.containerTokens to tokens. + (Vinod Kumar Vavilapalli via sseth) + + YARN-571. Remove user from ContainerLaunchContext. (Omkar Vinit Joshi via + vinodkv) + + YARN-716. Making ApplicationID immutable. (Siddharth Seth via vinodkv) + + YARN-684. ContainerManager.startContainer should use + ContainerTokenIdentifier instead of the entire Container. + (Vinod Kumar Vavilapalli via sseth) + + YARN-735. Make ApplicationAttemptId, ContaienrId and NodeId immutable. + (Jian He via sseth) + + YARN-749. Rename ResourceRequest.(get,set)HostName to + ResourceRequest.(get,set)ResourceName. (acmurthy) + + YARN-720. container-log4j.properties should not refer to mapreduce + property names. (Zhijie Shen via sseth) + + YARN-748. Moved BuilderUtils from yarn-common to yarn-server-common for + eventual retirement. (Jian He via vinodkv) + + YARN-635. Renamed YarnRemoteException to YarnException. (Siddharth Seth via + vinodkv) + + YARN-755. Renamed AllocateResponse.reboot to AllocateResponse.resync. (Bikas + Saha via vinodkv) + + YARN-753. Added individual factory methods for all api protocol records and + converted the records to be abstract classes. (Jian He via vinodkv) + + YARN-724. Moved ProtoBase from api.records to api.records.impl.pb. (Jian He + via vinodkv) + + YARN-759. Create Command enum in AllocateResponse (bikas) + + YARN-777. Removed unreferenced objects from .proto files. (Jian He via + vinodkv) + + YARN-642. Removed health parameter from ResourceManager /nodes web-service + and cleaned the behaviour of the status parameter. (Sandy Ryza vid vinodkv) + + YARN-530. Defined Service model strictly, implemented AbstractService for + robust subclassing and migrated yarn-common services. (Steve Loughran via + vinodkv) + + YARN-746. Renamed Service.register() and Service.unregister() to + registerServiceListener() & unregisterServiceListener() respectively. + (Steve Loughran via vinodkv) + + YARN-792. Moved NodeHealthStatus from yarn.api.record to + yarn.server.api.record. (Jian He via vinodkv) + + YARN-806. Moved ContainerExitStatus from yarn.api to yarn.api.records. (Jian + He via vinodkv) + + YARN-821. Renamed setFinishApplicationStatus to setFinalApplicationStatus in + FinishApplicationMasterRequest for consistency. (Jian He via vinodkv) + + YARN-787. Removed minimum resource from RegisterApplicationMasterResponse. + (tucu via acmurthy) + + YARN-829. Renamed RMTokenSelector to be RMDelegationTokenSelector. (Zhijie + Shen via vinodkv) + + YARN-828. Removed the unsed YarnVersionAnnotation. (Zhijie Shen via vinodkv) + + YARN-823. Moved RMAdmin from yarn.client to yarn.client.cli and renamed it to + be RMAdminCLI. (Jian He via vinodkv) + + YARN-387. Renamed YARN protocols for consistency. + ClientRMProtocol -> ApplicationClientProtocol + AMRMProtocol -> ApplicationMasterProtocol + ContainerManager -> ContainerManagementProtocol + (vinodkv via acmurthy) + + YARN-831. Removed minimum resource from GetNewApplicationResponse as a + follow-up to YARN-787. (Jian He via acmurthy) + + YARN-824. Added static factory methods to hadoop-yarn-client interfaces. + (Jian He via acmurthy) + + YARN-826. Moved Clock and SystemClock into yarn.util package. (Zhijie Shen + via vinodkv) + + YARN-837. Moved yarn.ClusterInfo into MapReduce project as it doesn't belong + to YARN. (Zhijie Shen via vinodkv) + + YARN-822. Renamed ApplicationToken to be AMRMToken, and similarly the + corresponding TokenSelector and SecretManager. (Omkar Vinit Joshi via vinodkv) + + YARN-610. ClientToken is no longer set in the environment of the Containers. + (Omkar Vinit Joshi via vinodkv) + + YARN-834. Fixed annotations for yarn-client module, reorganized packages and + clearly differentiated *Async apis. (Arun C Murthy and Zhijie Shen via + vinodkv) + + YARN-840. Moved ProtoUtils to yarn.api.records.pb.impl. (Jian He via + acmurthy) + + YARN-841. Move Auxiliary service to yarn-api, annotate and document it. + (vinodkv) + + YARN-850. Rename getClusterAvailableResources to getAvailableResources in + AMRMClients (Jian He via bikas) + + YARN-694. Starting to use NMTokens to authenticate all communication with + NodeManagers. (Omkar Vinit Joshi via vinodkv) + + YARN-553. Replaced YarnClient.getNewApplication with + YarnClient.createApplication which provides a directly usable + ApplicationSubmissionContext to simplify the api. (Karthik Kambatla via + acmurthy) + + YARN-851. Share NMTokens using NMTokenCache (api-based) between AMRMClient + and NMClient instead of memory based approach which is used currently. (Omkar + Vinit Joshi via vinodkv) + + YARN-869. Move ResourceManagerAdministrationProtocol out of main YARN api. + (vinodkv via acmurthy) + + YARN-791. Changed RM APIs and web-services related to nodes to ensure that + both are consistent with each other. (Sandy Ryza via vinodkv) + + YARN-727. ClientRMProtocol.getAllApplications should accept ApplicationType as + a parameter. (Xuan Gong via hitesh) + + YARN-701. Use application tokens irrespective of secure or non-secure + mode. (vinodkv via acmurthy) + + YARN-918. Remove ApplicationAttemptId from + RegisterApplicationMasterRequestProto. (vinodkv via acmurthy) + + YARN-926. Modified ContainerManagerProtcol APIs to take in requests for + multiple containers. (Jian He via vinodkv) + + NEW FEATURES + + YARN-482. FS: Extend SchedulingMode to intermediate queues. + (kkambatl via tucu) + + YARN-45. Add protocol for schedulers to request containers back from + ApplicationMasters. (Carlo Curino, cdouglas) + + YARN-563. Add the concept of an application-type for each application. + (Mayank Bansal via vinodkv) + + HADOOP-8562. Enhancements to support Hadoop on Windows Server and Windows + Azure environments. (See breakdown of tasks below for subtasks and + contributors) + + YARN-422. Add a NM Client library to help application-writers. (Zhijie Shen + via vinodkv) + + YARN-392. Make it possible to specify hard locality constraints in resource + requests. (sandyr via tucu) + + YARN-326. Add multi-resource scheduling to the fair scheduler. + (sandyr via tucu) + + YARN-398. Make it possible to specify hard locality constraints in resource + requests for CapacityScheduler. (acmurthy) + + YARN-781. Exposing LOGDIR in all containers' environment which should be used + by containers for logging purposes. (Jian He via vinodkv) + + IMPROVEMENTS + + YARN-347. Node CLI should show CPU info besides memory in node status. + (Junping Du via llu) + + YARN-365. Change NM heartbeat handling to not generate a scheduler event + on each heartbeat. (Xuan Gong via sseth) + + YARN-380. Fix yarn node -status output to be better readable. (Omkar Vinit + Joshi via vinodkv) + + YARN-410. Fixed RM UI so that the new lines diagnostics for a failed app on + the per-application page are translated to html line breaks. (Omkar Vinit + Joshi via vinodkv) + + YARN-198. Added a link to RM pages from the NodeManager web app. (Jian He + via vinodkv) + + YARN-237. Refreshing the RM page forgets how many rows I had in my + Datatables (jian he via bobby) + + YARN-481. Add AM Host and RPC Port to ApplicationCLI Status Output + (Chris Riccomini via bikas) + + YARN-297. Improve hashCode implementations for PB records. (Xuan Gong via + hitesh) + + YARN-417. Create AMRMClient wrapper that provides asynchronous callbacks. + (Sandy Ryza via bikas) + + YARN-497. Yarn unmanaged-am launcher jar does not define a main class in + its manifest (Hitesh Shah via bikas) + + YARN-469. Make scheduling mode in FS pluggable. (kkambatl via tucu) + + YARN-450. Define value for * in the scheduling protocol (Zhijie Shen via + bikas) + + YARN-475. Remove a unused constant in the public API - + ApplicationConstants.AM_APP_ATTEMPT_ID_ENV. (Hitesh Shah via vinodkv) + + YARN-309. Changed NodeManager to obtain heart-beat interval from the + ResourceManager. (Xuan Gong via vinodkv) + + YARN-447. Move ApplicationComparator in CapacityScheduler to use comparator + in ApplicationId. (Nemon Lou via vinodkv) + + YARN-381. Improve fair scheduler docs. (Sandy Ryza via tomwhite) + + YARN-458. YARN daemon addresses must be placed in many different configs. + (sandyr via tucu) + + YARN-193. Scheduler.normalizeRequest does not account for allocation + requests that exceed maximumAllocation limits (Zhijie Shen via bikas) + + YARN-479. NM retry behavior for connection to RM should be similar for + lost heartbeats (Jian He via bikas) + + YARN-495. Changed NM reboot behaviour to be a simple resync - kill all + containers and re-register with RM. (Jian He via vinodkv) + + YARN-514. Delayed store operations should not result in RM unavailability + for app submission (Zhijie Shen via bikas) + + YARN-586. Fixed a typo in ApplicationSubmissionContext#setApplicationId. + (Zhijie Shen via vinodkv) + + YARN-542. Changed the default global AM max-attempts value to be not one. + (Zhijie Shen via vinodkv) + + YARN-583. Moved application level local resources to be localized under the + filecache sub-directory under application directory. (Omkar Vinit Joshi via + vinodkv) + + YARN-581. Added a test to verify that app delegation tokens are restored + after RM restart. (Jian He via vinodkv) + + YARN-577. Add application-progress also to ApplicationReport. (Hitesh Shah + via vinodkv) + + YARN-595. Refactor fair scheduler to use common Resources. (Sandy Ryza + via tomwhite) + + YARN-562. Modified NM to reject any containers allocated by a previous + ResourceManager. (Jian He via vinodkv) + + YARN-591. Moved RM recovery related records out of public API as they do not + belong there. (vinodkv) + + YARN-599. Refactoring submitApplication in ClientRMService and RMAppManager + to separate out various validation checks depending on whether they rely on + RM configuration or not. (Zhijie Shen via vinodkv) + + YARN-618. Modified RM_INVALID_IDENTIFIER to be -1 instead of zero. (Jian He + via vinodkv) + + YARN-625. Move the utility method unwrapAndThrowException from + YarnRemoteExceptionPBImpl to RPCUtil. (Siddharth Seth via vinodkv) + + YARN-645. Moved RMDelegationTokenSecretManager from yarn-server-common to + yarn-server-resourcemanager where it really belongs. (Jian He via vinodkv) + + YARN-651. Changed PBClientImpls of ContainerManager and RMAdmin to throw + IOExceptions also. (Xuan Gong via vinodkv) + + YARN-582. Changed ResourceManager to recover Application token and client + tokens for app attempt so that RM can be restarted while preserving current + applications. (Jian He via vinodkv) + + YARN-568. Add support for work preserving preemption to the FairScheduler. + (Carlo Curino and Sandy Ryza via cdouglas) + + YARN-598. Add virtual cores to queue metrics. (sandyr via tucu) + + YARN-634. Modified YarnRemoteException to be not backed by PB and introduced + a separate SerializedException record. (Siddharth Seth via vinodkv) + + YARN-663. Changed ResourceTracker API and LocalizationProtocol API to throw + YarnRemoteException and IOException. (Xuan Gong via vinodkv) + + YARN-590. Added an optional mesage to be returned by ResourceMaanger when RM + asks an RM to shutdown/resync etc so that NMs can log this message locally + for better debuggability. (Mayank Bansal via vinodkv) + + YARN-617. Made ContainerTokens to be used for validation at NodeManager + also in unsecure mode to prevent AMs from faking resource requirements in + unsecure mode. (Omkar Vinit Joshi via vinodkv) + + YARN-708. Moved RecordFactory classes to hadoop-yarn-api, and put some + miscellaneous fixes to the interfaces. (Siddharth Seth via vinodkv) + + YARN-711. Copied BuilderUtil methods in individual API records as + BuilderUtils is going to be dismantled. (Jian He via vinodkv) + + YARN-714. Added NMTokens to be sent to AMs as part of heart-beat response. + (Omkar Vinit Joshi via vinodkv) + + YARN-638. Modified ResourceManager to restore RMDelegationTokens after + restarting. (Jian He via vinodkv) + + YARN-660. Improve AMRMClient with matching requests (bikas) + + YARN-717. Put object creation factories for Token in the class itself and + remove useless derivations for specific tokens. (Jian He via vinodkv) + + YARN-756. Move Preemption* records to yarn.api where they really belong. + (Jian He via vinodkv) + + YARN-750. Allow for black-listing resources in YARN API and Impl in CS + (acmurthy via bikas) + + YARN-877. Support resource blacklisting for FifoScheduler. + (Junping Du via llu) + + YARN-686. Flatten NodeReport. (sandyr via tucu) + + YARN-737. Throw some specific exceptions directly instead of wrapping them + in YarnException. (Jian He via sseth) + + YARN-731. RPCUtil.unwrapAndThrowException should unwrap remote + RuntimeExceptions. (Zhijie Shen via sseth) + + YARN-600. Hook up cgroups CPU settings to the number of virtual cores + allocated. (sandyr via tucu) + + YARN-648. FS: Add documentation for pluggable policy. (kkambatl via tucu) + + YARN-773. Moved YarnRuntimeException from package api.yarn to + api.yarn.exceptions. (Jian He via vinodkv) + + YARN-692. Creating NMToken master key on RM and sharing it with NM as a part + of RM-NM heartbeat. (Omkar Vinit Joshi via vinodkv) + + YARN-782. vcores-pcores ratio functions differently from vmem-pmem ratio in + misleading way. (sandyr via tucu) + + YARN-803. factor out scheduler config validation from the ResourceManager + to each scheduler implementation. (tucu) + + YARN-789. Enable zero capabilities resource requests in fair scheduler. + (tucu) + + YARN-639. Modified Distributed Shell application to start using the new + NMClient library. (Zhijie Shen via vinodkv) + + YARN-693. Modified RM to send NMTokens on allocate call so that AMs can then + use them for authentication with NMs. (Omkar Vinit Joshi via vinodkv) + + YARN-752. In AMRMClient, automatically add corresponding rack requests for + requested nodes. (sandyr via tucu) + + YARN-825. Fixed javadoc and annotations for yarn-common module. (vinodkv) + + YARN-833. Moved Graph and VisualizeStateMachine into yarn.state package. + (Zhijie Shen via vinodkv) + + YARN-805. Fix javadoc and annotations on classes in the yarn-api + package. (Jian He via sseth) + + YARN-846. Move pb Impl classes from yarn-api to yarn-common. (Jian He via + vinodkv) + + YARN-827. Need to make Resource arithmetic methods accessible (Jian He via + bikas) + + YARN-866. Add test for class ResourceWeights. (ywskycn via tucu) + + YARN-736. Add a multi-resource fair sharing metric. (sandyr via tucu) + + YARN-883. Expose Fair Scheduler-specific queue metrics. (sandyr via tucu) + + YARN-569. Add support for requesting and enforcing preemption requests via + a capacity monitor. (Carlo Curino, cdouglas) + + YARN-521. Augment AM - RM client module to be able to request containers + only at specific locations (Sandy Ryza via bikas) + + YARN-513. Create common proxy client for communicating with RM. (Xuan Gong + & Jian He via bikas) + + YARN-927. Change ContainerRequest to not have more than 1 container count + and remove StoreContainerRequest (bikas) + + YARN-922. Change FileSystemRMStateStore to use directories (Jian He via + bikas) + + YARN-865. RM webservices can't query based on application Types. (Xuan Gong + via hitesh) + + YARN-912. Move client facing exceptions to yarn-api module. (Mayank Bansal + via vinodkv) + + YARN-84. Use Builder to build RPC server. (Brandon Li via szetszwo) + + YARN-1046. Disable mem monitoring by default in MiniYARNCluster. (Karthik + Kambatla via Sandy Ryza) + + YARN-1045. Improve toString implementation for PBImpls. (Jian He via sseth) + + OPTIMIZATIONS + + YARN-512. Log aggregation root directory check is more expensive than it + needs to be. (Maysam Yabandeh via jlowe) + + YARN-719. Move RMIdentifier from Container to ContainerTokenIdentifier. + (Vinod Kumar Vavilapalli via sseth) + + BUG FIXES + + YARN-383. AMRMClientImpl should handle null rmClient in stop() + (Hitesh Shah via sseth) + + YARN-385. Add missing fields - location and #containers to + ResourceRequestPBImpl's toString(). (Sandy Ryza via sseth) + + YARN-377. Use the new StringUtils methods added by HADOOP-9252 and fix + TestContainersMonitor. (Chris Nauroth via szetszwo) + + YARN-391. Formatting fixes for LCEResourceHandler classes. + (Steve Loughran via sseth) + + YARN-390. ApplicationCLI and NodeCLI hard-coded platform-specific line + separator causes test failures on Windows. (Chris Nauroth via suresh) + + YARN-406. Fix TestRackResolver to function in networks where "host1" + resolves to a valid host. (Hitesh Shah via sseth) + + YARN-376. Fixes a bug which would prevent the NM knowing about completed + containers and applications. (Jason Lowe via sseth) + + YARN-196. Nodemanager should be more robust in handling connection failure + to ResourceManager when a cluster is started (Xuan Gong via hitesh) + + YARN-485. TestProcfsProcessTree#testProcessTree() doesn't wait long enough + for the process to die. (kkambatl via tucu) + + YARN-71. Fix the NodeManager to clean up local-dirs on restart. + (Xuan Gong via sseth) + + YARN-378. Fix RM to make the AM max attempts/retries to be configurable + per application by clients. (Zhijie Shen via vinodkv) + + YARN-498. Unmanaged AM launcher does not set various constants in env for + an AM, also does not handle failed AMs properly. (Hitesh Shah via bikas) + + YARN-496. Fair scheduler configs are refreshed inconsistently in + reinitialize. (Sandy Ryza via tomwhite) + + YARN-474. Fix CapacityScheduler to trigger application-activation when + am-resource-percent configuration is refreshed. (Zhijie Shen via vinodkv) + + YARN-209. Fix CapacityScheduler to trigger application-activation when + the cluster capacity changes. (Zhijie Shen via vinodkv) + + YARN-24. Nodemanager fails to start if log aggregation enabled and + namenode unavailable. (sandyr via tucu) + + YARN-515. Node Manager not getting the master key. (Robert Joseph Evans + via jlowe) + + YARN-382. SchedulerUtils improve way normalizeRequest sets the resource + capabilities. (Zhijie Shen via bikas) + + YARN-467. Modify public distributed cache to localize files such that no + local directory hits unix file count limits and thus prevent job failures. + (Omkar Vinit Joshi via vinodkv) + + YARN-101. Fix NodeManager heartbeat processing to not lose track of completed + containers in case of dropped heartbeats. (Xuan Gong via vinodkv) + + YARN-538. RM address DNS lookup can cause unnecessary slowness on every JHS + page load. (sandyr via tucu) + + YARN-532. Change RMAdmin and Localization client protocol PB implementations + to implement closeable so that they can be stopped when needed via + RPC.stopProxy(). (Siddharth Seth via vinodkv) + + YARN-99. Modify private distributed cache to localize files such that no + local directory hits unix file count limits and thus prevent job failures. + (Omkar Vinit Joshi via vinodkv) + + YARN-112. Fixed a race condition during localization that fails containers. + (Omkar Vinit Joshi via vinodkv) + + YARN-534. Change RM restart recovery to also account for AM max-attempts + configuration after the restart. (Jian He via vinodkv) + + YARN-539. Addressed memory leak of LocalResource objects NM when a resource + localization fails. (Omkar Vinit Joshi via vinodkv) + + YARN-319. Submitting a job to a fair scheduler queue for which the user + does not have permission causes the client to wait forever. + (shenhong via tomwhite) + + YARN-412. Fixed FifoScheduler to check hostname of a NodeManager rather + than its host:port during scheduling which caused incorrect locality for + containers. (Roger Hoover via acmurthy) + + YARN-500. Fixed YARN webapps to not roll-over ports when explicitly asked + to use non-ephemeral ports. (Kenji Kikushima via vinodkv) + + YARN-518. Fair Scheduler's document link could be added to the hadoop 2.x + main doc page. (sandyr via tucu) + + YARN-476. ProcfsBasedProcessTree info message confuses users. + (sandyr via tucu) + + YARN-585. Fix failure in TestFairScheduler#testNotAllowSubmitApplication + caused by YARN-514. (Zhijie Shen via vinodkv) + + YARN-547. Fixed race conditions in public and private resource localization + which used to cause duplicate downloads. (Omkar Vinit Joshi via vinodkv) + + YARN-594. Update test and add comments in YARN-534 (Jian He via bikas) + + YARN-549. YarnClient.submitApplication should wait for application to be + accepted by the RM (Zhijie Shen via bikas) + + YARN-605. Fix failing unit test in TestNMWebServices when versionInfo has + parantheses like when running on a git checkout. (Hitesh Shah via vinodkv) + + YARN-289. Fair scheduler allows reservations that won't fit on node. + (Sandy Ryza via tomwhite) + + YARN-576. Modified ResourceManager to reject NodeManagers that don't satisy + minimum resource requirements. (Kenji Kikushima via vinodkv) + + YARN-646. Fix two typos in Fair Scheduler user guide. (Dapeng Sun via atm) + + YARN-507. Add interface visibility and stability annotations to FS + interfaces/classes. (kkambatl via tucu) + + YARN-637. FS: maxAssign is not honored. (kkambatl via tucu) + + YARN-655. Fair scheduler metrics should subtract allocated memory from + available memory. (sandyr via tucu) + + YARN-628. Fix the way YarnRemoteException is being unrolled to extract out + the underlying exception. (Siddharth Seth via vinodkv) + + YARN-695. Remove masterContainer and status unused fields from + ApplicationReportProto and fix bugs in ApplicationReportPBImpl. (Zhijie Shen + via vinodkv) + + YARN-706. Fixed race conditions in TestFSDownload. (Zhijie Shen via vinodkv). + + YARN-715. Fixed unit test failures - TestDistributedShell and + TestUnmanagedAMLauncher. (Vinod Kumar Vavilapalli via sseth) + + YARN-578. Fixed NM to use SecureIOUtils for reading and aggregating logs. + (Omkar Vinit Joshi via vinodkv) + + YARN-733. Fixed TestNMClient from failing occasionally. (Zhijie Shen via + vinodkv) + + YARN-730. Fix NMClientAsync to remove completed containers. (Zhijie Shen + via acmurthy) + + YARN-726. Fix queue & finish time fields in web-ui for ResourceManager. + (Mayank Bansal via acmurthy) + + YARN-757. Changed TestRMRestart to use the default scheduler to avoid test + failures. (Bikas Saha via vinodkv) + + YARN-742. Log aggregation causes a lot of redundant setPermission calls. + (jlowe via kihwal) + + YARN-764. blank Used Resources on Capacity Scheduler page (Nemon Lou via + tgraves) + + YARN-761. TestNMClientAsync fails sometimes (Zhijie Shen via bikas) + + YARN-760. NodeManager throws AvroRuntimeException on failed start. + (Niranjan Singh via jlowe) + + YARN-767. Initialize application metrics at RM bootup. (Jian He via + acmurthy) + + YARN-700. TestInfoBlock fails on Windows because of line ending missmatch. + (Ivan Mitic via cnauroth) + + YARN-117. Migrated rest of YARN to the new service model. (Steve Louhran via + vinodkv) + + YARN-812. Set default logger for application summary logger to + hadoop.root.logger. (sseth via acmurthy) + + YARN-848. Nodemanager does not register with RM using the fully qualified + hostname. (Hitesh Shah via sseth) + + YARN-854. Fixing YARN bugs that are failing applications in secure + environment. (Omkar Vinit Joshi via vinodkv) + + YARN-861. TestContainerManager is failing. (Vinod Kumar Vavilapalli via + hitesh) + + YARN-874. Making common RPC to switch to not switch to simple when other + mechanisms are enabled and thus fix YARN/MR test failures after HADOOP-9421. + (Daryn Sharp and Vinod Kumar Vavilapalli via vinodkv) + + YARN-845. RM crash with NPE on NODE_UPDATE (Mayank Bansal via bikas) + + YARN-369. Handle ( or throw a proper error when receiving) status updates + from application masters that have not registered (Mayank Bansal & + Abhishek Kapoor via bikas) + + YARN-541. getAllocatedContainers() is not returning all the allocated + containers (bikas) + + YARN-763. AMRMClientAsync should stop heartbeating after receiving + shutdown from RM (Xuan Gong via bikas) + + YARN-654. AMRMClient: Perform sanity checks for parameters of public + methods (Xuan Gong via bikas)" + + YARN-919. Document setting default heap sizes in yarn-env.sh (Mayank + Bansal via hitesh) + + YARN-795. Fair scheduler queue metrics should subtract allocated vCores from + available vCores. (ywskycn via tucu) + + YARN-799. Fix CgroupsLCEResourcesHandler to use /tasks instead of + /cgroup.procs. (Chris Riccomini via acmurthy) + + YARN-333. Schedulers cannot control the queue-name of an + application. (sandyr via tucu) + + YARN-368. Fixed a typo in error message in Auxiliary services. (Albert Chu + via vinodkv) + + YARN-295. Fixed a race condition in ResourceManager RMAppAttempt state + machine. (Mayank Bansal via vinodkv) + + YARN-523. Modified a test-case to validate container diagnostics on + localization failures. (Jian He via vinodkv) + + YARN-661. Fixed NM to cleanup users' local directories correctly when + starting up. (Omkar Vinit Joshi via vinodkv) + + YARN-820. Fixed an invalid state transition in NodeManager caused by failing + resource localization. (Mayank Bansal via vinodkv) + + YARN-62. Modified NodeManagers to avoid AMs from abusing container tokens for + repetitive container launches. (Omkar Vinit Joshi via vinodkv) + + YARN-814. Improving diagnostics when containers fail during launch due to + various reasons like invalid env etc. (Jian He via vinodkv) + + YARN-897. Ensure child queues are ordered correctly to account for + completed containers. (Djellel Eddine Difallah via acmurthy) + + YARN-853. Fixed CapacityScheduler's maximum-am-resource-percent to properly + work beyond refreshing queues. (Devaraj K via vinodkv) + + YARN-873. YARNClient.getApplicationReport(unknownAppId) returns a null + report (Xuan Gong via bikas) + + YARN-875. Application can hang if AMRMClientAsync callback thread has + exception (Xuan Gong via bikas) + + YARN-461. Fair scheduler should not accept apps with empty string queue name. + (ywskycn via tucu) + + YARN-968. RM admin commands don't work. (vinodkv via kihwal) + + YARN-688. Fixed NodeManager to properly cleanup containers when it is shut + down. (Jian He via vinodkv) + + YARN-960. Fixed ResourceManager to propagate client-submitted credentials + irrespective of security. (Daryn Sharp via vinodkv) + + YARN-937. Fix unmanaged AM in non-secure/secure setup post YARN-701. (tucu) + + YARN-932. TestResourceLocalizationService.testLocalizationInit can fail on + JDK7. (Karthik Kambatla via Sandy Ryza) + + YARN-961. Changed ContainerManager to enforce Token auth irrespective of + security. (Omkar Vinit Joshi via vinodkv) + + YARN-945. Removed setting of AMRMToken's service from ResourceManager + and changed client libraries do it all the time and correctly. (vinodkv) + + YARN-656. In scheduler UI, including reserved memory in Memory Total can + make it exceed cluster capacity. (Sandy Ryza) + + BREAKDOWN OF HADOOP-8562/YARN-191 SUBTASKS AND RELATED JIRAS + + YARN-158. Yarn creating package-info.java must not depend on sh. + (Chris Nauroth via suresh) + + YARN-176. Some YARN tests fail to find winutils. (Chris Nauroth via suresh) + + YARN-207. YARN distribution build fails on Windows. (Chris Nauroth via + suresh) + + YARN-199. Yarn cmd line scripts for windows. (Ivan Mitic via suresh) + + YARN-213. YARN build script would be more readable using abspath. + (Chris Nauroth via suresh) + + YARN-233. Added support for running containers in MS Windows to YARN. (Chris + Nauroth via acmurthy) + + YARN-234. Added support for process tree and resource calculator in MS Windows + to YARN. (Chris Nauroth via acmurthy) + + YARN-259. Fix LocalDirsHandlerService to use Path rather than URIs. (Xuan + Gong via acmurthy) + + YARN-316. YARN container launch may exceed maximum Windows command line + length due to long classpath. (Chris Nauroth via suresh) + + YARN-359. Fixing commands for container signalling in Windows. (Chris Nauroth + via vinodkv) + + YARN-506. Move to common utils FileUtil#setReadable/Writable/Executable and + FileUtil#canRead/Write/Execute. (Ivan Mitic via suresh) + + YARN-488. TestContainerManagerSecurity fails on Windows. (Chris Nauroth + via hitesh) + + YARN-490. TestDistributedShell fails on Windows. (Chris Nauroth via hitesh) + + YARN-491. TestContainerLogsPage fails on Windows. (Chris Nauroth via hitesh) + + YARN-487. Modify path manipulation in LocalDirsHandlerService to let + TestDiskFailures pass on Windows. (Chris Nauroth via vinodkv) + + YARN-593. container launch on Windows does not correctly populate + classpath with new process's environment variables and localized resources + (Chris Nauroth via bikas) + + YARN-493. Fixed some shell related flaws in YARN on Windows. (Chris Nauroth + via vinodkv) + + YARN-839. TestContainerLaunch.testContainerEnvVariables fails on Windows. + (Chuan Liu via cnauroth) + + YARN-597. TestFSDownload fails on Windows due to dependencies on + tar/gzip/jar tools. (Ivan Mitic via acmurthy) + + YARN-852. TestAggregatedLogFormat.testContainerLogsFileAccess fails on + Windows. (Chuan Liu via cnauroth) + + YARN-894. NodeHealthScriptRunner timeout checking is inaccurate on Windows. + (Chuan Liu via cnauroth) + + YARN-909. Disable TestLinuxContainerExecutorWithMocks on Windows. (Chuan Liu + via cnauroth) + + YARN-1043. Push all metrics consistently. (Jian He via acmurthy) + + YARN-1056. Remove dual use of string 'resourcemanager' in + yarn.resourcemanager.connect.{max.wait.secs|retry_interval.secs} + (Karthik Kambatla via acmurthy) + +Release 2.0.5-alpha - 06/06/2013 + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + OPTIMIZATIONS + + BUG FIXES + +Release 2.0.4-alpha - 2013-04-25 + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + OPTIMIZATIONS + + BUG FIXES + + YARN-429. capacity-scheduler config missing from yarn-test artifact. + (sseth via hitesh) + + YARN-470. Support a way to disable resource monitoring on the NodeManager. + (Siddharth Seth via hitesh) + +Release 2.0.3-alpha - 2013-02-06 + + INCOMPATIBLE CHANGES + + NEW FEATURES + + YARN-145. Add a Web UI to the fair share scheduler. (Sandy Ryza via tomwhite) + + YARN-3. Add support for CPU isolation/monitoring of containers. + (adferguson via tucu) + + YARN-230. RM Restart phase 1 - includes support for saving/restarting all + applications on an RM bounce. (Bikas Saha via acmurthy) + + YARN-103. Add a yarn AM-RM client module. (Bikas Saha via sseth) + + YARN-286. Add a YARN ApplicationClassLoader. (tomwhite) + + YARN-2. Enhanced CapacityScheduler to account for CPU alongwith memory for + multi-dimensional resource scheduling. (acmurthy) + + YARN-328. Use token request messages defined in hadoop common. (suresh) + + YARN-231. RM Restart - Add FS-based persistent store implementation for + RMStateStore (Bikas Saha via hitesh) + + IMPROVEMENTS + + YARN-223. Update process tree instead of getting new process trees. + (Radim Kolar via llu) + + YARN-57. Allow process-tree based resource calculation et al. to be + pluggable to support it on multiple platforms. (Radim Kolar via acmurthy) + + YARN-78. Changed UnManagedAM application to use YarnClient. (Bikas Saha via + vinodkv) + + YARN-93. Fixed RM to propagate diagnostics from applications that have + finished but failed (Jason Lowe via vinodkv). + + YARN-28. Fixed TestCompositeService to not depend on test-order and thus + made it pass on JDK7 (Thomas Graves via vinodkv). + + YARN-82. Change the default local and log dirs to be based on + hadoop.tmp.dir and yarn.log.dir. (Hemanth Yamijala via sseth) + + YARN-53. Added the missing getGroups API to ResourceManager. (Bo Wang via + vinodkv) + + YARN-116. Add the ability to change the RM include/exclude file without + a restart. (xieguiming and Harsh J via sseth) + + YARN-23. FairScheduler: FSQueueSchedulable#updateDemand() - potential + redundant aggregation. (kkambatl via tucu) + + YARN-127. Move RMAdmin tool to its correct location - the client module. + (vinodkv) + + YARN-40. Provided support for missing YARN commands (Devaraj K and Vinod + Kumar Vavilapalli via vinodkv) + + YARN-33. Change LocalDirsHandlerService to validate the configured local and + log dirs. (Mayank Bansal via sseth) + + YARN-94. Modify DistributedShell to point to main-class by default, clean up + the help message, and hard-code the AM class. (Hitesh Shah via vinodkv) + + YARN-146. Add unit tests for computing fair share in the fair scheduler. + (Sandy Ryza via tomwhite) + + HADOOP-8911. CRLF characters in source and text files. + (Raja Aluri via suresh) + + YARN-136. Make ClientToAMTokenSecretManager part of RMContext (Vinod Kumar + Vavilapalli via sseth) + + YARN-183. Clean up fair scheduler code. (Sandy Ryza via tomwhite) + + YARN-129. Simplify classpath construction for mini YARN tests. (tomwhite) + + YARN-254. Update fair scheduler web UI for hierarchical queues. + (sandyr via tucu) + + YARN-315. Using the common security token protobuf definition from hadoop + common. (Suresh Srinivas via vinodkv) + + YARN-170. Change NodeManager stop to be reentrant. (Sandy Ryza via vinodkv) + + YARN-331. Fill in missing fair scheduler documentation. (sandyr via tucu) + + YARN-277. Use AMRMClient in DistributedShell to exemplify the approach. + (Bikas Saha via hitesh) + + YARN-360. Allow apps to concurrently register tokens for renewal. + (Daryn Sharp via sseth) + + OPTIMIZATIONS + + BUG FIXES + + YARN-131. Fix incorrect ACL properties in capacity scheduler documentation. + (Ahmed Radwan via sseth) + + YARN-102. Move the apache header to the top of the file in MemStore.java. + (Devaraj K via sseth) + + YARN-134. ClientToAMSecretManager creates keys without checking for + validity of the appID. (Vinod Kumar Vavilapalli via sseth) + + YARN-30. Fixed tests verifying web-services to work on JDK7. (Thomas Graves + via vinodkv) + + YARN-150. Fixes AppRejectedTransition does not unregister a rejected + app-attempt from the ApplicationMasterService (Bikas Saha via sseth) + + YARN-140. Add capacity-scheduler-default.xml to provide a default set of + configurations for the capacity scheduler. (ahmed via tucu) + + YARN-179. Fix some unit test failures. (Vinod Kumar Vavilapalli via sseth) + + YARN-181. Fixed eclipse settings broken by capacity-scheduler.xml move via + YARN-140. (Siddharth Seth via vinodkv) + + YARN-169. Update log4j.appender.EventCounter to use + org.apache.hadoop.log.metrics.EventCounter (Anthony Rojas via tomwhite) + + YARN-184. Remove unnecessary locking in fair scheduler, and address + findbugs excludes. (sandyr via tucu) + + YARN-224. Fair scheduler logs too many nodeUpdate INFO messages. + (Sandy Ryza via tomwhite) + + YARN-222. Fair scheduler should create queue for each user by default. + (Sandy Ryza via tomwhite) + + MAPREDUCE-4778. Fair scheduler event log is only written if directory + exists on HDFS. (Sandy Ryza via tomwhite) + + YARN-229. Remove old unused RM recovery code. (Bikas Saha via acmurthy) + + YARN-187. Add hierarchical queues to the fair scheduler. + (Sandy Ryza via tomwhite) + + YARN-72. NM should handle cleaning up containers when it shuts down. + (Sandy Ryza via tomwhite) + + YARN-267. Fix fair scheduler web UI. (Sandy Ryza via tomwhite) + + YARN-264. y.s.rm.DelegationTokenRenewer attempts to renew token even + after removing an app. (kkambatl via tucu) + + YARN-271. Fair scheduler hits IllegalStateException trying to reserve + different apps on same node. (Sandy Ryza via tomwhite) + + YARN-272. Fair scheduler log messages try to print objects without + overridden toString methods. (sandyr via tucu) + + YARN-278. Fair scheduler maxRunningApps config causes no apps to make + progress. (sandyr via tucu) + + YARN-282. Fair scheduler web UI double counts Apps Submitted. + (sandyr via tucu) + + YARN-283. Fair scheduler fails to get queue info without root prefix. + (sandyr via tucu) + + YARN-192. Node update causes NPE in the fair scheduler. + (Sandy Ryza via tomwhite) + + YARN-288. Fair scheduler queue doesn't accept any jobs when ACLs are + configured. (Sandy Ryza via tomwhite) + + YARN-300. After YARN-271, fair scheduler can infinite loop and not + schedule any application. (Sandy Ryza via tomwhite) + + YARN-301. Fair scheduler throws ConcurrentModificationException when + iterating over app's priorities. (Sandy Ryza via tomwhite) + + YARN-217. Fix RMAdmin protocol description to make it work in secure mode + also. (Devaraj K via vinodkv) + + YARN-253. Fixed container-launch to not fail when there are no local + resources to localize. (Tom White via vinodkv) + + YARN-330. Fix flakey test: TestNodeManagerShutdown#testKillContainersOnShutdown. + (Sandy Ryza via hitesh) + + YARN-335. Fair scheduler doesn't check whether rack needs containers + before assigning to node. (Sandy Ryza via tomwhite) + + YARN-336. Fair scheduler FIFO scheduling within a queue only allows 1 + app at a time. (Sandy Ryza via tomwhite) + + YARN-135. Client tokens should be per app-attempt, and should be + unregistered on App-finish. (vinodkv via sseth) + + YARN-302. Fair scheduler assignmultiple should default to false. (sandyr via tucu) + + YARN-372. Move InlineDispatcher from hadoop-yarn-server-resourcemanager to + hadoop-yarn-common (sseth via hitesh) + + YARN-370. Fix SchedulerUtils to correctly round up the resource for + containers. (Zhijie Shen via acmurthy) + + YARN-355. Fixes a bug where RM app submission could jam under load. + (Daryn Sharp via sseth) + +Release 2.0.2-alpha - 2012-09-07 + + YARN-9. Rename YARN_HOME to HADOOP_YARN_HOME. (vinodkv via acmurthy) + + NEW FEATURES + + YARN-1. Promote YARN to be a sub-project of Apache Hadoop. (acmurthy) + + IMPROVEMENTS + + YARN-29. Add a yarn-client module. (Vinod Kumar Vavilapalli via sseth) + + YARN-10. Fix DistributedShell module to not have a dependency on + hadoop-mapreduce-client-core. (Hitesh Shah via vinodkv) + + YARN-80. Add support for delaying rack-local containers in + CapacityScheduler. (acmurthy) + + YARN-137. Change the default YARN scheduler to be the CapacityScheduler. + (sseth via acmurthy) + + OPTIMIZATIONS + + BUG FIXES + + YARN-13. Fix pom versions for YARN in branch-2 (todd) + + MAPREDUCE-2374. "Text File Busy" errors launching MR tasks. (Andy Isaacson + via atm) + + YARN-12. Fix findbugs warnings in FairScheduler. (Junping Du via acmurthy) + + YARN-22. Fix ContainerLogs to work if the log-dir is specified as a URI. + (Mayank Bansal via sseth) + + YARN-37. Change TestRMAppTransitions to use the DrainDispatcher. + (Mayank Bansal via sseth) + + YARN-79. Implement close on all clients to YARN so that RPC clients don't + throw exceptions on shut-down. (Vinod Kumar Vavilapalli) + + YARN-42. Modify NM's non-aggregating logs' handler to stop properly so that + NMs don't get NPEs on startup errors. (Devaraj K via vinodkv) + + YARN-15. Updated default classpath for YARN applications to reflect split of + YARN into a sub-project. (Arun C Murthy via vinodkv) + + YARN-75. Modified ResourceManager's RMContainer to handle a valid RELEASE + event at RUNNING state. (Siddharth Seth via vinodkv) + + YARN-138. Ensure default values for minimum/maximum container sizes is + sane. (harsh & sseth via acmurthy) + +Release 0.23.9 - UNRELEASED + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + OPTIMIZATIONS + + BUG FIXES + +Release 0.23.8 - 2013-06-05 + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + OPTIMIZATIONS + + YARN-548. Add tests for YarnUncaughtExceptionHandler (Vadim Bondarev via + jeagles) + + BUG FIXES + + YARN-363. Add webapps/proxy directory without which YARN proxy-server fails + when started in stand-alone mode. (Kenji Kikushima via vinodkv) + + YARN-690. RM exits on token cancel/renew problems (daryn via bobby) + +Release 0.23.7 - 2013-04-18 + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + YARN-133 Update web services docs for RM clusterMetrics (Ravi Prakash via + kihwal) + + YARN-249. Capacity Scheduler web page should show list of active users per + queue like it used to (in 1.x) (Ravi Prakash via tgraves) + + YARN-236. RM should point tracking URL to RM web page when app fails to + start (Jason Lowe via jeagles) + + YARN-269. Resource Manager not logging the health_check_script result when + taking it out (Jason Lowe via kihwal) + + YARN-227. Application expiration difficult to debug for end-users + (Jason Lowe via jeagles) + + YARN-443. allow OS scheduling priority of NM to be different than the + containers it launches (tgraves) + + YARN-468. coverage fix for org.apache.hadoop.yarn.server.webproxy.amfilter + (Aleksey Gorshkov via bobby) + + YARN-200. yarn log does not output all needed information, and is in a + binary format (Ravi Prakash via jlowe) + + YARN-525. make CS node-locality-delay refreshable (Thomas Graves via jlowe) + + OPTIMIZATIONS + + YARN-357. App submission should not be synchronized (daryn) + + BUG FIXES + + YARN-343. Capacity Scheduler maximum-capacity value -1 is invalid (Xuan + Gong via tgraves) + + YARN-364. AggregatedLogDeletionService can take too long to delete logs + (jlowe) + + YARN-362. Unexpected extra results when using webUI table search (Ravi + Prakash via jlowe) + + YARN-400. RM can return null application resource usage report leading to + NPE in client (Jason Lowe via tgraves) + + YARN-426. Failure to download a public resource prevents further downloads + (Jason Lowe via bobby) + + YARN-448. Remove unnecessary hflush from log aggregation (Kihwal Lee via + bobby) + + YARN-345. Many InvalidStateTransitonException errors for ApplicationImpl + in Node Manager (Robert Parker via jlowe) + + YARN-109. .tmp file is not deleted for localized archives (Mayank Bansal + via bobby) + + YARN-460. CS user left in list of active users for the queue even when + application finished (tgraves) + +Release 0.23.6 - 2013-02-06 + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + YARN-285. Added a temporary plugin interface for RM to be able to redirect + to JobHistory server for apps that it no longer tracks. (Derek Dagit via + vinodkv) + + OPTIMIZATIONS + + BUG FIXES + + YARN-188. Coverage fixing for CapacityScheduler (Aleksey Gorshkov via + bobby) + + YARN-214. RMContainerImpl does not handle event EXPIRE at state RUNNING + (jeagles via bobby) + + YARN-151. Browser thinks RM main page JS is taking too long + (Ravi Prakash via bobby) + + YARN-204. test coverage for org.apache.hadoop.tools (Aleksey Gorshkov via + bobby) + + YARN-251. Proxy URI generation fails for blank tracking URIs (Tom White + via jlowe) + + YARN-258. RM web page UI shows Invalid Date for start and finish times + (Ravi Prakash via jlowe) + + YARN-266. RM and JHS Web UIs are blank because AppsBlock is not escaping + string properly (Ravi Prakash via jlowe) + + YARN-280. RM does not reject app submission with invalid tokens + (Daryn Sharp via tgraves) + + YARN-225. Proxy Link in RM UI thows NPE in Secure mode + (Devaraj K via bobby) + + YARN-293. Node Manager leaks LocalizerRunner object for every Container + (Robert Joseph Evans via jlowe) + + YARN-50. Implement renewal / cancellation of Delegation Tokens + (Siddharth Seth via tgraves) + + YARN-320. RM should always be able to renew its own tokens. + (Daryn Sharp via sseth) + + YARN-325. RM CapacityScheduler can deadlock when getQueueInfo() is + called and a container is completing (Arun C Murthy via tgraves) + + YARN-334. Maven RAT plugin is not checking all source files (tgraves) + + YARN-354. WebAppProxyServer exits immediately after startup (Liang Xie via + jlowe) + +Release 0.23.5 - 2012-11-28 + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + YARN-161. Fix multiple compiler warnings for unchecked operations in YARN + common. (Chris Nauroth via vinodkv) + + YARN-43. Fix TestResourceTrackerService to not depend on test order and thus + pass on JDK7. (Thomas Graves via vinodkv) + + YARN-32. Fix TestApplicationTokens to not depend on test order and thus pass + on JDK7. (vinodkv) + + YARN-186. Coverage fixing LinuxContainerExecutor (Aleksey Gorshkov via + bobby) + + YARN-216. Remove jquery theming support. (Robert Joseph Evans via jlowe) + + OPTIMIZATIONS + + BUG FIXES + + YARN-163. Retrieving container log via NM webapp can hang with multibyte + characters in log (jlowe via bobby) + + YARN-174. Modify NodeManager to pass the user's configuration even when + rebooting. (vinodkv) + + YARN-177. CapacityScheduler - adding a queue while the RM is running has + wacky results (acmurthy vai tgraves) + + YARN-178. Fix custom ProcessTree instance creation (Radim Kolar via bobby) + + YARN-180. Capacity scheduler - containers that get reserved create + container token to early (acmurthy and bobby) + + YARN-139. Interrupted Exception within AsyncDispatcher leads to user + confusion. (Vinod Kumar Vavilapalli via jlowe) + + YARN-165. RM should point tracking URL to RM web page for app when AM fails + (jlowe via bobby) + + YARN-159. RM web ui applications page should be sorted to display last app + first (tgraves via bobby) + + YARN-166. capacity scheduler doesn't allow capacity < 1.0 (tgraves via + bobby) + + YARN-189. Fixed a deadlock between RM's ApplicationMasterService and the + dispatcher. (Thomas Graves via vinodkv) + + YARN-202. Log Aggregation generates a storm of fsync() for namenode + (Kihwal Lee via bobby) + + YARN-201. Fix CapacityScheduler to be less conservative for starved + off-switch requests. (jlowe via acmurthy) + + YARN-206. TestApplicationCleanup.testContainerCleanup occasionally fails. + (jlowe via jeagles) + + YARN-212. NM state machine ignores an APPLICATION_CONTAINER_FINISHED event + when it shouldn't (Nathan Roberts via jlowe) + + YARN-219. NM should aggregate logs when application finishes. (bobby) + +Release 0.23.4 + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + Change package of YarnClient to org.apache.hadoop. (Bikas Saha via vinodkv) + + YARN-108. FSDownload can create cache directories with the wrong + permissions (Jason Lowe via bobby) + + YARN-57. Allow process-tree based resource calculation et al. to be + pluggable to support it on multiple platforms. (Radim Kolar via acmurthy) + + OPTIMIZATIONS + + BUG FIXES + + YARN-88. DefaultContainerExecutor can fail to set proper permissions. + (Jason Lowe via sseth) + + YARN-106. Nodemanager needs to set permissions of local directories (jlowe + via bobby) + +Release 0.23.3 + + INCOMPATIBLE CHANGES + + NEW FEATURES + + IMPROVEMENTS + + OPTIMAZATIONS + + BUG FIXES + + YARN-14. Symlinks to peer distributed cache files no longer work + (Jason Lowe via bobby) + + YARN-25. remove old aggregated logs (Robert Evans via tgraves) + + YARN-27. Failed refreshQueues due to misconfiguration prevents further + refreshing of queues (Arun Murthy via tgraves) + + MAPREDUCE-4323. NM leaks filesystems (Jason Lowe via jeagles) + + YARN-39. RM-NM secret-keys should be randomly generated and rolled every + so often. (vinodkv and sseth via sseth) + + YARN-31. Fix TestDelegationTokenRenewer to not depend on test order so as to + pass tests on jdk7. (Thomas Graves via vinodkv) + + YARN-63. RMNodeImpl is missing valid transitions from the UNHEALTHY state + (Jason Lowe via bobby) + + YARN-60. Fixed a bug in ResourceManager which causes all NMs to get NPEs and + thus causes all containers to be rejected. (vinodkv) + + YARN-66. aggregated logs permissions not set properly (tgraves via bobby) + + YARN-68. NodeManager will refuse to shutdown indefinitely due to container + log aggregation (daryn via bobby) + + YARN-87. NM ResourceLocalizationService does not set permissions of local + cache directories (Jason Lowe via tgraves) diff --git a/aarch64/share/doc/hadoop/yarn/LICENSE.txt b/aarch64/share/doc/hadoop/yarn/LICENSE.txt new file mode 100644 index 0000000..59bcdbc --- /dev/null +++ b/aarch64/share/doc/hadoop/yarn/LICENSE.txt @@ -0,0 +1,244 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. 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You may reproduce and distribute copies of the + Work or Derivative Works thereof in any medium, with or without + modifications, and in Source or Object form, provided that You + meet the following conditions: + + (a) You must give any other recipients of the Work or + Derivative Works a copy of this License; and + + (b) You must cause any modified files to carry prominent notices + stating that You changed the files; and + + (c) You must retain, in the Source form of any Derivative Works + that You distribute, all copyright, patent, trademark, and + attribution notices from the Source form of the Work, + excluding those notices that do not pertain to any part of + the Derivative Works; and + + (d) If the Work includes a "NOTICE" text file as part of its + distribution, then any Derivative Works that You distribute must + include a readable copy of the attribution notices contained + within such NOTICE file, excluding those notices that do not + pertain to any part of the Derivative Works, in at least one + of the following places: within a NOTICE text file distributed + as part of the Derivative Works; within the Source form or + documentation, if provided along with the Derivative Works; or, + within a display generated by the Derivative Works, if and + wherever such third-party notices normally appear. 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We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright [yyyy] [name of copyright owner] + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + + +APACHE HADOOP SUBCOMPONENTS: + +The Apache Hadoop project contains subcomponents with separate copyright +notices and license terms. Your use of the source code for the these +subcomponents is subject to the terms and conditions of the following +licenses. + +For the org.apache.hadoop.util.bloom.* classes: + +/** + * + * Copyright (c) 2005, European Commission project OneLab under contract + * 034819 (http://www.one-lab.org) + * All rights reserved. + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the distribution. + * - Neither the name of the University Catholique de Louvain - UCL + * nor the names of its contributors may be used to endorse or + * promote products derived from this software without specific prior + * written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ diff --git a/aarch64/share/doc/hadoop/yarn/NOTICE.txt b/aarch64/share/doc/hadoop/yarn/NOTICE.txt new file mode 100644 index 0000000..62fc581 --- /dev/null +++ b/aarch64/share/doc/hadoop/yarn/NOTICE.txt @@ -0,0 +1,2 @@ +This product includes software developed by The Apache Software +Foundation (http://www.apache.org/). |