1 files changed, 67 insertions, 0 deletions
diff --git a/aarch64/sbin/slaves.sh b/aarch64/sbin/slaves.sh
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+#!/usr/bin/env bash
+
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You 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.
+
+
+# Run a shell command on all slave hosts.
+#
+# Environment Variables
+#
+#   HADOOP_SLAVES    File naming remote hosts.
+#     Default is ${HADOOP_CONF_DIR}/slaves.
+#   HADOOP_CONF_DIR  Alternate conf dir. Default is ${HADOOP_PREFIX}/conf.
+#   HADOOP_SLAVE_SLEEP Seconds to sleep between spawning remote commands.
+#   HADOOP_SSH_OPTS Options passed to ssh when running remote commands.
+##
+
+usage="Usage: slaves.sh [--config confdir] command..."
+
+# if no args specified, show usage
+if [ $# -le 0 ]; then
+  echo $usage
+  exit 1
+fi
+
+bin=`dirname "${BASH_SOURCE-$0}"`
+bin=`cd "$bin"; pwd`
+
+DEFAULT_LIBEXEC_DIR="$bin"/../libexec
+HADOOP_LIBEXEC_DIR=${HADOOP_LIBEXEC_DIR:-$DEFAULT_LIBEXEC_DIR}
+. $HADOOP_LIBEXEC_DIR/hadoop-config.sh
+
+if [ -f "${HADOOP_CONF_DIR}/hadoop-env.sh" ]; then
+  . "${HADOOP_CONF_DIR}/hadoop-env.sh"
+fi
+
+# Where to start the script, see hadoop-config.sh
+# (it set up the variables based on command line options)
+if [ "$HADOOP_SLAVE_NAMES" != '' ] ; then
+  SLAVE_NAMES=$HADOOP_SLAVE_NAMES
+else
+  SLAVE_FILE=${HADOOP_SLAVES:-${HADOOP_CONF_DIR}/slaves}
+  SLAVE_NAMES=$(cat "$SLAVE_FILE" | sed  's/#.*$//;/^$/d')
+fi
+
+# start the daemons
+for slave in $SLAVE_NAMES ; do
+ ssh $HADOOP_SSH_OPTS $slave $"${@// /\\ }" \
+   2>&1 | sed "s/^/$slave: /" &
+ if [ "$HADOOP_SLAVE_SLEEP" != "" ]; then
+   sleep $HADOOP_SLAVE_SLEEP
+ fi
+done
+
+wait