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
|
#!/usr/bin/env python3
# group: rw quick
#
# This test covers what happens when a mirror block job is cancelled
# in various phases of its existence.
#
# Note that this test only checks the emitted events (i.e.
# BLOCK_JOB_COMPLETED vs. BLOCK_JOB_CANCELLED), it does not compare
# whether the target is in sync with the source when the
# BLOCK_JOB_COMPLETED event occurs. This is covered by other tests
# (such as 041).
#
# 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: Hanna Reitz <hreitz@redhat.com>
import iotests
from iotests import log, qemu_img, qemu_io
iotests.script_initialize(supported_fmts=['qcow2', 'raw'])
# Launches the VM, adds two null-co nodes (source and target), and
# starts a blockdev-mirror job on them.
#
# Either both or none of speed and buf_size must be given.
def start_mirror(vm, speed=None, buf_size=None):
vm.launch()
ret = vm.qmp('blockdev-add',
node_name='source',
driver='null-co',
size=1048576)
assert ret['return'] == {}
ret = vm.qmp('blockdev-add',
node_name='target',
driver='null-co',
size=1048576)
assert ret['return'] == {}
if speed is not None:
ret = vm.qmp('blockdev-mirror',
job_id='mirror',
device='source',
target='target',
sync='full',
speed=speed,
buf_size=buf_size)
else:
ret = vm.qmp('blockdev-mirror',
job_id='mirror',
device='source',
target='target',
sync='full')
assert ret['return'] == {}
log('')
log('=== Cancel mirror job before convergence ===')
log('')
log('--- force=false ---')
log('')
with iotests.VM() as vm:
# Low speed so it does not converge
start_mirror(vm, 65536, 65536)
log('Cancelling job')
log(vm.qmp('block-job-cancel', device='mirror', force=False))
log(vm.event_wait('BLOCK_JOB_CANCELLED'),
filters=[iotests.filter_qmp_event])
log('')
log('--- force=true ---')
log('')
with iotests.VM() as vm:
# Low speed so it does not converge
start_mirror(vm, 65536, 65536)
log('Cancelling job')
log(vm.qmp('block-job-cancel', device='mirror', force=True))
log(vm.event_wait('BLOCK_JOB_CANCELLED'),
filters=[iotests.filter_qmp_event])
log('')
log('=== Cancel mirror job after convergence ===')
log('')
log('--- force=false ---')
log('')
with iotests.VM() as vm:
start_mirror(vm)
log(vm.event_wait('BLOCK_JOB_READY'),
filters=[iotests.filter_qmp_event])
log('Cancelling job')
log(vm.qmp('block-job-cancel', device='mirror', force=False))
log(vm.event_wait('BLOCK_JOB_COMPLETED'),
filters=[iotests.filter_qmp_event])
log('')
log('--- force=true ---')
log('')
with iotests.VM() as vm:
start_mirror(vm)
log(vm.event_wait('BLOCK_JOB_READY'),
filters=[iotests.filter_qmp_event])
log('Cancelling job')
log(vm.qmp('block-job-cancel', device='mirror', force=True))
log(vm.event_wait('BLOCK_JOB_CANCELLED'),
filters=[iotests.filter_qmp_event])
log('')
log('=== Cancel mirror job from throttled node by quitting ===')
log('')
with iotests.VM() as vm, \
iotests.FilePath('src.img') as src_img_path:
qemu_img('create', '-f', iotests.imgfmt, src_img_path, '64M')
qemu_io('-f', iotests.imgfmt, src_img_path, '-c', 'write -P 42 0M 64M')
vm.launch()
ret = vm.qmp('object-add', qom_type='throttle-group', id='tg',
limits={'bps-read': 4096})
assert ret['return'] == {}
ret = vm.qmp('blockdev-add',
node_name='source',
driver=iotests.imgfmt,
file={
'driver': 'file',
'filename': src_img_path
})
assert ret['return'] == {}
ret = vm.qmp('blockdev-add',
node_name='throttled-source',
driver='throttle',
throttle_group='tg',
file='source')
assert ret['return'] == {}
ret = vm.qmp('blockdev-add',
node_name='target',
driver='null-co',
size=(64 * 1048576))
assert ret['return'] == {}
ret = vm.qmp('blockdev-mirror',
job_id='mirror',
device='throttled-source',
target='target',
sync='full')
assert ret['return'] == {}
log(vm.qmp('quit'))
with iotests.Timeout(5, 'Timeout waiting for VM to quit'):
vm.shutdown()
|
