dcc28ab603
The event is racy: it will not appear in the output if bitmap is
migrated during downtime period of migration and postcopy phase is not
started.
Fixes: ae00aa2398 "iotests: 194: test also migration of dirty bitmap"
Reported-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-Id: <20230607143606.1557395-1-vsementsov@yandex-team.ru>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
107 lines
4.5 KiB
Python
Executable File
107 lines
4.5 KiB
Python
Executable File
#!/usr/bin/env python3
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# group: rw migration quick
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#
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# Copyright (C) 2017 Red Hat, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# Creator/Owner: Stefan Hajnoczi <stefanha@redhat.com>
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#
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# Non-shared storage migration test using NBD server and drive-mirror
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import iotests
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iotests.script_initialize(supported_fmts=['qcow2', 'qed', 'raw'],
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supported_platforms=['linux'])
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with iotests.FilePath('source.img') as source_img_path, \
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iotests.FilePath('dest.img') as dest_img_path, \
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iotests.FilePath('migration.sock', 'nbd.sock', base_dir=iotests.sock_dir) \
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as (migration_sock_path, nbd_sock_path), \
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iotests.VM('source') as source_vm, \
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iotests.VM('dest') as dest_vm:
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img_size = '1G'
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iotests.qemu_img_create('-f', iotests.imgfmt, source_img_path, img_size)
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iotests.qemu_img_create('-f', iotests.imgfmt, dest_img_path, img_size)
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iotests.log('Launching VMs...')
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(source_vm.add_drive(source_img_path)
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.launch())
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(dest_vm.add_drive(dest_img_path)
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.add_incoming('unix:{0}'.format(migration_sock_path))
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.launch())
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source_vm.qmp_log('block-dirty-bitmap-add', node='drive0', name='bitmap0')
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iotests.log('Launching NBD server on destination...')
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iotests.log(dest_vm.qmp('nbd-server-start', addr={'type': 'unix', 'data': {'path': nbd_sock_path}}))
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iotests.log(dest_vm.qmp('nbd-server-add', device='drive0', writable=True))
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iotests.log('Starting `drive-mirror` on source...')
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iotests.log(source_vm.qmp(
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'drive-mirror',
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device='drive0',
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target='nbd+unix:///drive0?socket={0}'.format(nbd_sock_path),
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sync='full',
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format='raw', # always raw, the server handles the format
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mode='existing',
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job_id='mirror-job0'))
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iotests.log('Waiting for `drive-mirror` to complete...')
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iotests.log(source_vm.event_wait('BLOCK_JOB_READY'),
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filters=[iotests.filter_qmp_event])
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iotests.log('Starting migration...')
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capabilities = [{'capability': 'events', 'state': True},
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{'capability': 'dirty-bitmaps', 'state': True}]
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source_vm.qmp('migrate-set-capabilities', capabilities=capabilities)
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dest_vm.qmp('migrate-set-capabilities', capabilities=capabilities)
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iotests.log(source_vm.qmp('migrate', uri='unix:{0}'.format(migration_sock_path)))
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source_vm.qmp_log('migrate-start-postcopy')
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while True:
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event1 = source_vm.event_wait('MIGRATION')
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if event1['data']['status'] == 'postcopy-active':
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# This event is racy, it depends do we really do postcopy or bitmap
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# was migrated during downtime (and no data to migrate in postcopy
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# phase). So, don't log it.
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continue
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iotests.log(event1, filters=[iotests.filter_qmp_event])
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if event1['data']['status'] in ('completed', 'failed'):
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iotests.log('Gracefully ending the `drive-mirror` job on source...')
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iotests.log(source_vm.qmp('block-job-cancel', device='mirror-job0'))
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break
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while True:
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event2 = source_vm.event_wait('BLOCK_JOB_COMPLETED')
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iotests.log(event2, filters=[iotests.filter_qmp_event])
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if event2['event'] == 'BLOCK_JOB_COMPLETED':
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iotests.log('Stopping the NBD server on destination...')
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iotests.log(dest_vm.qmp('nbd-server-stop'))
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break
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iotests.log('Wait for migration completion on target...')
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migr_events = (('MIGRATION', {'data': {'status': 'completed'}}),
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('MIGRATION', {'data': {'status': 'failed'}}))
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event = dest_vm.events_wait(migr_events)
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iotests.log(event, filters=[iotests.filter_qmp_event])
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iotests.log('Check bitmaps on source:')
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iotests.log(source_vm.qmp('query-block')['return'][0]['inserted']['dirty-bitmaps'])
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iotests.log('Check bitmaps on target:')
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iotests.log(dest_vm.qmp('query-block')['return'][0]['inserted']['dirty-bitmaps'])
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