mirror of
https://github.com/xemu-project/xemu.git
synced 2024-11-27 21:40:49 +00:00
iotests: Test error handling policies with block-commit
This tests both read failure (from the top node) and write failure (to the base node) for on-error=report/stop/ignore. As block-commit actually starts two different types of block jobs (mirror.c for committing the active later, commit.c for intermediate layers), all tests are run for both cases. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20200214200812.28180-8-kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Kevin Wolf
parent
8faad1c7fb
commit
d439848941
@ -430,6 +430,289 @@ class TestReopenOverlay(ImageCommitTestCase):
|
||||
def test_reopen_overlay(self):
|
||||
self.run_commit_test(self.img1, self.img0)
|
||||
|
||||
class TestErrorHandling(iotests.QMPTestCase):
|
||||
image_len = 2 * 1024 * 1024
|
||||
|
||||
def setUp(self):
|
||||
iotests.create_image(backing_img, self.image_len)
|
||||
qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, mid_img)
|
||||
qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % mid_img, test_img)
|
||||
|
||||
qemu_io('-f', iotests.imgfmt, '-c', 'write -P 0x11 0 512k', mid_img)
|
||||
qemu_io('-f', iotests.imgfmt, '-c', 'write -P 0x22 0 512k', test_img)
|
||||
|
||||
self.vm = iotests.VM()
|
||||
self.vm.launch()
|
||||
|
||||
self.blkdebug_file = iotests.file_path("blkdebug.conf")
|
||||
|
||||
def tearDown(self):
|
||||
self.vm.shutdown()
|
||||
os.remove(test_img)
|
||||
os.remove(mid_img)
|
||||
os.remove(backing_img)
|
||||
|
||||
def blockdev_add(self, **kwargs):
|
||||
result = self.vm.qmp('blockdev-add', **kwargs)
|
||||
self.assert_qmp(result, 'return', {})
|
||||
|
||||
def add_block_nodes(self, base_debug=None, mid_debug=None, top_debug=None):
|
||||
self.blockdev_add(node_name='base-file', driver='file',
|
||||
filename=backing_img)
|
||||
self.blockdev_add(node_name='mid-file', driver='file',
|
||||
filename=mid_img)
|
||||
self.blockdev_add(node_name='top-file', driver='file',
|
||||
filename=test_img)
|
||||
|
||||
if base_debug:
|
||||
self.blockdev_add(node_name='base-dbg', driver='blkdebug',
|
||||
image='base-file', inject_error=base_debug)
|
||||
if mid_debug:
|
||||
self.blockdev_add(node_name='mid-dbg', driver='blkdebug',
|
||||
image='mid-file', inject_error=mid_debug)
|
||||
if top_debug:
|
||||
self.blockdev_add(node_name='top-dbg', driver='blkdebug',
|
||||
image='top-file', inject_error=top_debug)
|
||||
|
||||
self.blockdev_add(node_name='base-fmt', driver='raw',
|
||||
file=('base-dbg' if base_debug else 'base-file'))
|
||||
self.blockdev_add(node_name='mid-fmt', driver=iotests.imgfmt,
|
||||
file=('mid-dbg' if mid_debug else 'mid-file'),
|
||||
backing='base-fmt')
|
||||
self.blockdev_add(node_name='top-fmt', driver=iotests.imgfmt,
|
||||
file=('top-dbg' if top_debug else 'top-file'),
|
||||
backing='mid-fmt')
|
||||
|
||||
def run_job(self, expected_events, error_pauses_job=False):
|
||||
match_device = {'data': {'device': 'job0'}}
|
||||
events = [
|
||||
('BLOCK_JOB_COMPLETED', match_device),
|
||||
('BLOCK_JOB_CANCELLED', match_device),
|
||||
('BLOCK_JOB_ERROR', match_device),
|
||||
('BLOCK_JOB_READY', match_device),
|
||||
]
|
||||
|
||||
completed = False
|
||||
log = []
|
||||
while not completed:
|
||||
ev = self.vm.events_wait(events, timeout=5.0)
|
||||
if ev['event'] == 'BLOCK_JOB_COMPLETED':
|
||||
completed = True
|
||||
elif ev['event'] == 'BLOCK_JOB_ERROR':
|
||||
if error_pauses_job:
|
||||
result = self.vm.qmp('block-job-resume', device='job0')
|
||||
self.assert_qmp(result, 'return', {})
|
||||
elif ev['event'] == 'BLOCK_JOB_READY':
|
||||
result = self.vm.qmp('block-job-complete', device='job0')
|
||||
self.assert_qmp(result, 'return', {})
|
||||
else:
|
||||
self.fail("Unexpected event: %s" % ev)
|
||||
log.append(iotests.filter_qmp_event(ev))
|
||||
|
||||
self.maxDiff = None
|
||||
self.assertEqual(expected_events, log)
|
||||
|
||||
def event_error(self, op, action):
|
||||
return {
|
||||
'event': 'BLOCK_JOB_ERROR',
|
||||
'data': {'action': action, 'device': 'job0', 'operation': op},
|
||||
'timestamp': {'microseconds': 'USECS', 'seconds': 'SECS'}
|
||||
}
|
||||
|
||||
def event_ready(self):
|
||||
return {
|
||||
'event': 'BLOCK_JOB_READY',
|
||||
'data': {'device': 'job0',
|
||||
'len': 524288,
|
||||
'offset': 524288,
|
||||
'speed': 0,
|
||||
'type': 'commit'},
|
||||
'timestamp': {'microseconds': 'USECS', 'seconds': 'SECS'},
|
||||
}
|
||||
|
||||
def event_completed(self, errmsg=None, active=True):
|
||||
max_len = 524288 if active else self.image_len
|
||||
data = {
|
||||
'device': 'job0',
|
||||
'len': max_len,
|
||||
'offset': 0 if errmsg else max_len,
|
||||
'speed': 0,
|
||||
'type': 'commit'
|
||||
}
|
||||
if errmsg:
|
||||
data['error'] = errmsg
|
||||
|
||||
return {
|
||||
'event': 'BLOCK_JOB_COMPLETED',
|
||||
'data': data,
|
||||
'timestamp': {'microseconds': 'USECS', 'seconds': 'SECS'},
|
||||
}
|
||||
|
||||
def blkdebug_event(self, event, is_raw=False):
|
||||
if event:
|
||||
return [{
|
||||
'event': event,
|
||||
'sector': 512 if is_raw else 1024,
|
||||
'once': True,
|
||||
}]
|
||||
return None
|
||||
|
||||
def prepare_and_start_job(self, on_error, active=True,
|
||||
top_event=None, mid_event=None, base_event=None):
|
||||
|
||||
top_debug = self.blkdebug_event(top_event)
|
||||
mid_debug = self.blkdebug_event(mid_event)
|
||||
base_debug = self.blkdebug_event(base_event, True)
|
||||
|
||||
self.add_block_nodes(top_debug=top_debug, mid_debug=mid_debug,
|
||||
base_debug=base_debug)
|
||||
|
||||
result = self.vm.qmp('block-commit', job_id='job0', device='top-fmt',
|
||||
top_node='top-fmt' if active else 'mid-fmt',
|
||||
base_node='mid-fmt' if active else 'base-fmt',
|
||||
on_error=on_error)
|
||||
self.assert_qmp(result, 'return', {})
|
||||
|
||||
def testActiveReadErrorReport(self):
|
||||
self.prepare_and_start_job('report', top_event='read_aio')
|
||||
self.run_job([
|
||||
self.event_error('read', 'report'),
|
||||
self.event_completed('Input/output error')
|
||||
])
|
||||
|
||||
self.vm.shutdown()
|
||||
self.assertFalse(iotests.compare_images(test_img, mid_img),
|
||||
'target image matches source after error')
|
||||
|
||||
def testActiveReadErrorStop(self):
|
||||
self.prepare_and_start_job('stop', top_event='read_aio')
|
||||
self.run_job([
|
||||
self.event_error('read', 'stop'),
|
||||
self.event_ready(),
|
||||
self.event_completed()
|
||||
], error_pauses_job=True)
|
||||
|
||||
self.vm.shutdown()
|
||||
self.assertTrue(iotests.compare_images(test_img, mid_img),
|
||||
'target image does not match source after commit')
|
||||
|
||||
def testActiveReadErrorIgnore(self):
|
||||
self.prepare_and_start_job('ignore', top_event='read_aio')
|
||||
self.run_job([
|
||||
self.event_error('read', 'ignore'),
|
||||
self.event_ready(),
|
||||
self.event_completed()
|
||||
])
|
||||
|
||||
# For commit, 'ignore' actually means retry, so this will succeed
|
||||
self.vm.shutdown()
|
||||
self.assertTrue(iotests.compare_images(test_img, mid_img),
|
||||
'target image does not match source after commit')
|
||||
|
||||
def testActiveWriteErrorReport(self):
|
||||
self.prepare_and_start_job('report', mid_event='write_aio')
|
||||
self.run_job([
|
||||
self.event_error('write', 'report'),
|
||||
self.event_completed('Input/output error')
|
||||
])
|
||||
|
||||
self.vm.shutdown()
|
||||
self.assertFalse(iotests.compare_images(test_img, mid_img),
|
||||
'target image matches source after error')
|
||||
|
||||
def testActiveWriteErrorStop(self):
|
||||
self.prepare_and_start_job('stop', mid_event='write_aio')
|
||||
self.run_job([
|
||||
self.event_error('write', 'stop'),
|
||||
self.event_ready(),
|
||||
self.event_completed()
|
||||
], error_pauses_job=True)
|
||||
|
||||
self.vm.shutdown()
|
||||
self.assertTrue(iotests.compare_images(test_img, mid_img),
|
||||
'target image does not match source after commit')
|
||||
|
||||
def testActiveWriteErrorIgnore(self):
|
||||
self.prepare_and_start_job('ignore', mid_event='write_aio')
|
||||
self.run_job([
|
||||
self.event_error('write', 'ignore'),
|
||||
self.event_ready(),
|
||||
self.event_completed()
|
||||
])
|
||||
|
||||
# For commit, 'ignore' actually means retry, so this will succeed
|
||||
self.vm.shutdown()
|
||||
self.assertTrue(iotests.compare_images(test_img, mid_img),
|
||||
'target image does not match source after commit')
|
||||
|
||||
def testIntermediateReadErrorReport(self):
|
||||
self.prepare_and_start_job('report', active=False, mid_event='read_aio')
|
||||
self.run_job([
|
||||
self.event_error('read', 'report'),
|
||||
self.event_completed('Input/output error', active=False)
|
||||
])
|
||||
|
||||
self.vm.shutdown()
|
||||
self.assertFalse(iotests.compare_images(mid_img, backing_img, fmt2='raw'),
|
||||
'target image matches source after error')
|
||||
|
||||
def testIntermediateReadErrorStop(self):
|
||||
self.prepare_and_start_job('stop', active=False, mid_event='read_aio')
|
||||
self.run_job([
|
||||
self.event_error('read', 'stop'),
|
||||
self.event_completed(active=False)
|
||||
], error_pauses_job=True)
|
||||
|
||||
self.vm.shutdown()
|
||||
self.assertTrue(iotests.compare_images(mid_img, backing_img, fmt2='raw'),
|
||||
'target image does not match source after commit')
|
||||
|
||||
def testIntermediateReadErrorIgnore(self):
|
||||
self.prepare_and_start_job('ignore', active=False, mid_event='read_aio')
|
||||
self.run_job([
|
||||
self.event_error('read', 'ignore'),
|
||||
self.event_completed(active=False)
|
||||
])
|
||||
|
||||
# For commit, 'ignore' actually means retry, so this will succeed
|
||||
self.vm.shutdown()
|
||||
self.assertTrue(iotests.compare_images(mid_img, backing_img, fmt2='raw'),
|
||||
'target image does not match source after commit')
|
||||
|
||||
def testIntermediateWriteErrorReport(self):
|
||||
self.prepare_and_start_job('report', active=False, base_event='write_aio')
|
||||
self.run_job([
|
||||
self.event_error('write', 'report'),
|
||||
self.event_completed('Input/output error', active=False)
|
||||
])
|
||||
|
||||
self.vm.shutdown()
|
||||
self.assertFalse(iotests.compare_images(mid_img, backing_img, fmt2='raw'),
|
||||
'target image matches source after error')
|
||||
|
||||
def testIntermediateWriteErrorStop(self):
|
||||
self.prepare_and_start_job('stop', active=False, base_event='write_aio')
|
||||
self.run_job([
|
||||
self.event_error('write', 'stop'),
|
||||
self.event_completed(active=False)
|
||||
], error_pauses_job=True)
|
||||
|
||||
self.vm.shutdown()
|
||||
self.assertTrue(iotests.compare_images(mid_img, backing_img, fmt2='raw'),
|
||||
'target image does not match source after commit')
|
||||
|
||||
def testIntermediateWriteErrorIgnore(self):
|
||||
self.prepare_and_start_job('ignore', active=False, base_event='write_aio')
|
||||
self.run_job([
|
||||
self.event_error('write', 'ignore'),
|
||||
self.event_completed(active=False)
|
||||
])
|
||||
|
||||
# For commit, 'ignore' actually means retry, so this will succeed
|
||||
self.vm.shutdown()
|
||||
self.assertTrue(iotests.compare_images(mid_img, backing_img, fmt2='raw'),
|
||||
'target image does not match source after commit')
|
||||
|
||||
if __name__ == '__main__':
|
||||
iotests.main(supported_fmts=['qcow2', 'qed'],
|
||||
supported_protocols=['file'])
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
...............................................
|
||||
...........................................................
|
||||
----------------------------------------------------------------------
|
||||
Ran 47 tests
|
||||
Ran 59 tests
|
||||
|
||||
OK
|
||||
|
||||
Loading…
Reference in New Issue
Block a user