1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
|
#!/usr/bin/env python
#
# Copyright (C) 2018 Red Hat, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# Creator/Owner: Kevin Wolf <kwolf@redhat.com>
#
# Check using the job-* QMP commands with block jobs
import iotests
iotests.verify_image_format(supported_fmts=['qcow2'])
def pause_wait(vm, job_id):
with iotests.Timeout(3, "Timeout waiting for job to pause"):
while True:
result = vm.qmp('query-jobs')
for job in result['return']:
if job['id'] == job_id and job['status'] in ['paused', 'standby']:
return job
# Test that block-job-pause/resume and job-pause/resume can be mixed
def test_pause_resume(vm):
for pause_cmd, pause_arg in [('block-job-pause', 'device'),
('job-pause', 'id')]:
for resume_cmd, resume_arg in [('block-job-resume', 'device'),
('job-resume', 'id')]:
iotests.log('=== Testing %s/%s ===' % (pause_cmd, resume_cmd))
iotests.log(vm.qmp(pause_cmd, **{pause_arg: 'job0'}))
pause_wait(vm, 'job0')
iotests.log(iotests.filter_qmp_event(vm.event_wait('JOB_STATUS_CHANGE')))
result = vm.qmp('query-jobs')
iotests.log(result)
old_progress = result['return'][0]['current-progress']
total_progress = result['return'][0]['total-progress']
iotests.log(vm.qmp(resume_cmd, **{resume_arg: 'job0'}))
iotests.log(iotests.filter_qmp_event(vm.event_wait('JOB_STATUS_CHANGE')))
if old_progress < total_progress:
# Wait for the job to advance
while result['return'][0]['current-progress'] == old_progress:
result = vm.qmp('query-jobs')
iotests.log(result)
else:
# Already reached the end, so the job cannot advance
# any further; therefore, the query-jobs result can be
# logged immediately
iotests.log(vm.qmp('query-jobs'))
def test_job_lifecycle(vm, job, job_args, has_ready=False):
iotests.log('')
iotests.log('')
iotests.log('Starting block job: %s (auto-finalize: %s; auto-dismiss: %s)' %
(job,
job_args.get('auto-finalize', True),
job_args.get('auto-dismiss', True)))
iotests.log(vm.qmp(job, job_id='job0', **job_args))
# Depending on the storage, the first request may or may not have completed
# yet (and the total progress may not have been fully determined yet), so
# filter out the progress. Later query-job calls don't need the filtering
# because the progress is made deterministic by the block job speed
result = vm.qmp('query-jobs')
for j in result['return']:
j['current-progress'] = 'FILTERED'
j['total-progress'] = 'FILTERED'
iotests.log(result)
# undefined -> created -> running
iotests.log(iotests.filter_qmp_event(vm.event_wait('JOB_STATUS_CHANGE')))
iotests.log(iotests.filter_qmp_event(vm.event_wait('JOB_STATUS_CHANGE')))
# RUNNING state:
# pause/resume should work, complete/finalize/dismiss should error out
iotests.log('')
iotests.log('Pause/resume in RUNNING')
test_pause_resume(vm)
iotests.log(vm.qmp('job-complete', id='job0'))
iotests.log(vm.qmp('job-finalize', id='job0'))
iotests.log(vm.qmp('job-dismiss', id='job0'))
iotests.log(vm.qmp('block-job-complete', device='job0'))
iotests.log(vm.qmp('block-job-finalize', id='job0'))
iotests.log(vm.qmp('block-job-dismiss', id='job0'))
# Let the job complete (or transition to READY if it supports that)
iotests.log(vm.qmp('block-job-set-speed', device='job0', speed=0))
if has_ready:
iotests.log('')
iotests.log('Waiting for READY state...')
vm.event_wait('BLOCK_JOB_READY')
iotests.log(iotests.filter_qmp_event(vm.event_wait('JOB_STATUS_CHANGE')))
iotests.log(vm.qmp('query-jobs'))
# READY state:
# pause/resume/complete should work, finalize/dismiss should error out
iotests.log('')
iotests.log('Pause/resume in READY')
test_pause_resume(vm)
iotests.log(vm.qmp('job-finalize', id='job0'))
iotests.log(vm.qmp('job-dismiss', id='job0'))
iotests.log(vm.qmp('block-job-finalize', id='job0'))
iotests.log(vm.qmp('block-job-dismiss', id='job0'))
# Transition to WAITING
iotests.log(vm.qmp('job-complete', id='job0'))
# Move to WAITING and PENDING state
iotests.log('')
iotests.log('Waiting for PENDING state...')
iotests.log(iotests.filter_qmp_event(vm.event_wait('JOB_STATUS_CHANGE')))
iotests.log(iotests.filter_qmp_event(vm.event_wait('JOB_STATUS_CHANGE')))
if not job_args.get('auto-finalize', True):
# PENDING state:
# finalize should work, pause/complete/dismiss should error out
iotests.log(vm.qmp('query-jobs'))
iotests.log(vm.qmp('job-pause', id='job0'))
iotests.log(vm.qmp('job-complete', id='job0'))
iotests.log(vm.qmp('job-dismiss', id='job0'))
iotests.log(vm.qmp('block-job-pause', device='job0'))
iotests.log(vm.qmp('block-job-complete', device='job0'))
iotests.log(vm.qmp('block-job-dismiss', id='job0'))
# Transition to CONCLUDED
iotests.log(vm.qmp('job-finalize', id='job0'))
# Move to CONCLUDED state
iotests.log(iotests.filter_qmp_event(vm.event_wait('JOB_STATUS_CHANGE')))
if not job_args.get('auto-dismiss', True):
# CONCLUDED state:
# dismiss should work, pause/complete/finalize should error out
iotests.log(vm.qmp('query-jobs'))
iotests.log(vm.qmp('job-pause', id='job0'))
iotests.log(vm.qmp('job-complete', id='job0'))
iotests.log(vm.qmp('job-finalize', id='job0'))
iotests.log(vm.qmp('block-job-pause', device='job0'))
iotests.log(vm.qmp('block-job-complete', device='job0'))
iotests.log(vm.qmp('block-job-finalize', id='job0'))
# Transition to NULL
iotests.log(vm.qmp('job-dismiss', id='job0'))
# Move to NULL state
iotests.log(iotests.filter_qmp_event(vm.event_wait('JOB_STATUS_CHANGE')))
iotests.log(vm.qmp('query-jobs'))
with iotests.FilePath('disk.img') as disk_path, \
iotests.FilePath('copy.img') as copy_path, \
iotests.VM() as vm:
img_size = '4M'
iotests.qemu_img_create('-f', iotests.imgfmt, disk_path, img_size)
iotests.qemu_io('-c', 'write 0 %s' % (img_size),
'-f', iotests.imgfmt, disk_path)
iotests.log('Launching VM...')
vm.add_blockdev(vm.qmp_to_opts({
'driver': iotests.imgfmt,
'node-name': 'drive0-node',
'file': {
'driver': 'file',
'filename': disk_path,
},
}))
vm.launch()
# In order to keep things deterministic (especially progress in query-job,
# but related to this also automatic state transitions like job
# completion), but still get pause points often enough to avoid making this
# test very slow, it's important to have the right ratio between speed and
# buf_size.
#
# For backup, buf_size is hard-coded to the source image cluster size (64k),
# so we'll pick the same for mirror. The slice time, i.e. the granularity
# of the rate limiting is 100ms. With a speed of 256k per second, we can
# get four pause points per second. This gives us 250ms per iteration,
# which should be enough to stay deterministic.
test_job_lifecycle(vm, 'drive-mirror', has_ready=True, job_args={
'device': 'drive0-node',
'target': copy_path,
'sync': 'full',
'speed': 262144,
'buf_size': 65536,
})
for auto_finalize in [True, False]:
for auto_dismiss in [True, False]:
test_job_lifecycle(vm, 'drive-backup', job_args={
'device': 'drive0-node',
'target': copy_path,
'sync': 'full',
'speed': 262144,
'auto-finalize': auto_finalize,
'auto-dismiss': auto_dismiss,
})
vm.shutdown()
|
