iotests: add test 260 to check bitmap life after snapshot + commit

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20190927122355.7344-8-vsementsov@virtuozzo.com
[Maintainer edit: removed 260 from auto group per Peter Maydell. --js]
Signed-off-by: John Snow <jsnow@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2019-09-27 15:23:53 +03:00 committed by John Snow
parent 644ddbb754
commit 5d9388d4b2
3 changed files with 142 additions and 0 deletions

89
tests/qemu-iotests/260 Executable file
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#!/usr/bin/env python
#
# Tests for temporary external snapshot when we have bitmaps.
#
# Copyright (c) 2019 Virtuozzo International GmbH. All rights reserved.
#
# 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/>.
#
import iotests
from iotests import qemu_img_create, file_path, log, filter_qmp_event
iotests.verify_image_format(supported_fmts=['qcow2'])
base, top = file_path('base', 'top')
size = 64 * 1024 * 3
def print_bitmap(msg, vm):
result = vm.qmp('query-block')['return'][0]
if 'dirty-bitmaps' in result:
bitmap = result['dirty-bitmaps'][0]
log('{}: name={} dirty-clusters={}'.format(msg, bitmap['name'],
bitmap['count'] // 64 // 1024))
else:
log(msg + ': not found')
def test(persistent, restart):
assert persistent or not restart
log("\nTestcase {}persistent {} restart\n".format(
'' if persistent else 'non-', 'with' if restart else 'without'))
qemu_img_create('-f', iotests.imgfmt, base, str(size))
vm = iotests.VM().add_drive(base)
vm.launch()
vm.qmp_log('block-dirty-bitmap-add', node='drive0', name='bitmap0',
persistent=persistent)
vm.hmp_qemu_io('drive0', 'write 0 64K')
print_bitmap('initial bitmap', vm)
vm.qmp_log('blockdev-snapshot-sync', device='drive0', snapshot_file=top,
format=iotests.imgfmt, filters=[iotests.filter_qmp_testfiles])
vm.hmp_qemu_io('drive0', 'write 64K 512')
print_bitmap('check that no bitmaps are in snapshot', vm)
if restart:
log("... Restart ...")
vm.shutdown()
vm = iotests.VM().add_drive(top)
vm.launch()
vm.qmp_log('block-commit', device='drive0', top=top,
filters=[iotests.filter_qmp_testfiles])
ev = vm.events_wait((('BLOCK_JOB_READY', None),
('BLOCK_JOB_COMPLETED', None)))
log(filter_qmp_event(ev))
if (ev['event'] == 'BLOCK_JOB_COMPLETED'):
vm.shutdown()
log(vm.get_log())
exit()
vm.qmp_log('block-job-complete', device='drive0')
ev = vm.event_wait('BLOCK_JOB_COMPLETED')
log(filter_qmp_event(ev))
print_bitmap('check bitmap after commit', vm)
vm.hmp_qemu_io('drive0', 'write 128K 64K')
print_bitmap('check updated bitmap', vm)
vm.shutdown()
test(persistent=False, restart=False)
test(persistent=True, restart=False)
test(persistent=True, restart=True)

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Testcase non-persistent without restart
{"execute": "block-dirty-bitmap-add", "arguments": {"name": "bitmap0", "node": "drive0", "persistent": false}}
{"return": {}}
initial bitmap: name=bitmap0 dirty-clusters=1
{"execute": "blockdev-snapshot-sync", "arguments": {"device": "drive0", "format": "qcow2", "snapshot-file": "TEST_DIR/PID-top"}}
{"return": {}}
check that no bitmaps are in snapshot: not found
{"execute": "block-commit", "arguments": {"device": "drive0", "top": "TEST_DIR/PID-top"}}
{"return": {}}
{"data": {"device": "drive0", "len": 65536, "offset": 65536, "speed": 0, "type": "commit"}, "event": "BLOCK_JOB_READY", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
{"execute": "block-job-complete", "arguments": {"device": "drive0"}}
{"return": {}}
{"data": {"device": "drive0", "len": 65536, "offset": 65536, "speed": 0, "type": "commit"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
check bitmap after commit: name=bitmap0 dirty-clusters=2
check updated bitmap: name=bitmap0 dirty-clusters=3
Testcase persistent without restart
{"execute": "block-dirty-bitmap-add", "arguments": {"name": "bitmap0", "node": "drive0", "persistent": true}}
{"return": {}}
initial bitmap: name=bitmap0 dirty-clusters=1
{"execute": "blockdev-snapshot-sync", "arguments": {"device": "drive0", "format": "qcow2", "snapshot-file": "TEST_DIR/PID-top"}}
{"return": {}}
check that no bitmaps are in snapshot: not found
{"execute": "block-commit", "arguments": {"device": "drive0", "top": "TEST_DIR/PID-top"}}
{"return": {}}
{"data": {"device": "drive0", "len": 65536, "offset": 65536, "speed": 0, "type": "commit"}, "event": "BLOCK_JOB_READY", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
{"execute": "block-job-complete", "arguments": {"device": "drive0"}}
{"return": {}}
{"data": {"device": "drive0", "len": 65536, "offset": 65536, "speed": 0, "type": "commit"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
check bitmap after commit: name=bitmap0 dirty-clusters=2
check updated bitmap: name=bitmap0 dirty-clusters=3
Testcase persistent with restart
{"execute": "block-dirty-bitmap-add", "arguments": {"name": "bitmap0", "node": "drive0", "persistent": true}}
{"return": {}}
initial bitmap: name=bitmap0 dirty-clusters=1
{"execute": "blockdev-snapshot-sync", "arguments": {"device": "drive0", "format": "qcow2", "snapshot-file": "TEST_DIR/PID-top"}}
{"return": {}}
check that no bitmaps are in snapshot: not found
... Restart ...
{"execute": "block-commit", "arguments": {"device": "drive0", "top": "TEST_DIR/PID-top"}}
{"return": {}}
{"data": {"device": "drive0", "len": 65536, "offset": 65536, "speed": 0, "type": "commit"}, "event": "BLOCK_JOB_READY", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
{"execute": "block-job-complete", "arguments": {"device": "drive0"}}
{"return": {}}
{"data": {"device": "drive0", "len": 65536, "offset": 65536, "speed": 0, "type": "commit"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
check bitmap after commit: name=bitmap0 dirty-clusters=2
check updated bitmap: name=bitmap0 dirty-clusters=3

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256 rw quick
257 rw
258 rw quick
260 rw quick
262 rw quick migration
263 rw quick
265 rw auto quick