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