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iotests/264: add mirror-cancel test-case

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Check that cancel doesn't wait for 10s of nbd reconnect timeout.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210205163720.887197-9-vsementsov@virtuozzo.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2021-02-05 19:37:18 +03:00 committed by Eric Blake
parent 3f7db418d1
commit d00dd63135
2 changed files with 32 additions and 10 deletions
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38
tests/qemu-iotests/264
View File

@ -27,25 +27,26 @@ from iotests import qemu_img_create, file_path, qemu_nbd_popen
disk_a, disk_b, nbd_sock = file_path('disk_a', 'disk_b', 'nbd-sock')
nbd_uri = 'nbd+unix:///?socket=' + nbd_sock
size = 5 * 1024 * 1024
wait_limit = 3.0
wait_step = 0.2
class TestNbdReconnect(iotests.QMPTestCase):
def setUp(self):
qemu_img_create('-f', iotests.imgfmt, disk_a, str(size))
qemu_img_create('-f', iotests.imgfmt, disk_b, str(size))
def init_vm(self, disk_size):
qemu_img_create('-f', iotests.imgfmt, disk_a, str(disk_size))
qemu_img_create('-f', iotests.imgfmt, disk_b, str(disk_size))
self.vm = iotests.VM().add_drive(disk_a)
self.vm.launch()
self.vm.hmp_qemu_io('drive0', 'write 0 {}'.format(size))
self.vm.hmp_qemu_io('drive0', 'write 0 {}'.format(disk_size))
def tearDown(self):
self.vm.shutdown()
os.remove(disk_a)
os.remove(disk_b)
def test(self):
def start_job(self, job):
"""Stat job with nbd target and kill the server"""
assert job in ('blockdev-backup', 'blockdev-mirror')
with qemu_nbd_popen('-k', nbd_sock, '-f', iotests.imgfmt, disk_b):
result = self.vm.qmp('blockdev-add',
**{'node_name': 'backup0',
@ -55,7 +56,7 @@ class TestNbdReconnect(iotests.QMPTestCase):
'path': nbd_sock},
'reconnect-delay': 10}})
self.assert_qmp(result, 'return', {})
result = self.vm.qmp('blockdev-backup', device='drive0',
result = self.vm.qmp(job, device='drive0',
sync='full', target='backup0',
speed=(1 * 1024 * 1024))
self.assert_qmp(result, 'return', {})
@ -73,7 +74,8 @@ class TestNbdReconnect(iotests.QMPTestCase):
jobs = self.vm.qmp('query-block-jobs')['return']
# Check that job is still in progress
self.assertTrue(jobs and jobs[0]['offset'] < jobs[0]['len'])
self.assertTrue(jobs)
self.assertTrue(jobs[0]['offset'] < jobs[0]['len'])
result = self.vm.qmp('block-job-set-speed', device='drive0', speed=0)
self.assert_qmp(result, 'return', {})
@ -81,12 +83,32 @@ class TestNbdReconnect(iotests.QMPTestCase):
# Emulate server down time for 1 second
time.sleep(1)
def test_backup(self):
size = 5 * 1024 * 1024
self.init_vm(size)
self.start_job('blockdev-backup')
with qemu_nbd_popen('-k', nbd_sock, '-f', iotests.imgfmt, disk_b):
e = self.vm.event_wait('BLOCK_JOB_COMPLETED')
self.assertEqual(e['data']['offset'], size)
result = self.vm.qmp('blockdev-del', node_name='backup0')
self.assert_qmp(result, 'return', {})
def test_mirror_cancel(self):
# Mirror speed limit doesn't work well enough, it seems that mirror
# will run many parallel requests anyway. MAX_IN_FLIGHT is 16 and
# MAX_IO_BYTES is 1M in mirror.c, so let's use 20M disk.
self.init_vm(20 * 1024 * 1024)
self.start_job('blockdev-mirror')
result = self.vm.qmp('block-job-cancel', device='drive0')
self.assert_qmp(result, 'return', {})
start_t = time.time()
self.vm.event_wait('BLOCK_JOB_CANCELLED')
delta_t = time.time() - start_t
self.assertTrue(delta_t < 2.0)
if __name__ == '__main__':
iotests.main(supported_fmts=['qcow2'])

4
tests/qemu-iotests/264.out
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@ -1,5 +1,5 @@
.
..
----------------------------------------------------------------------
Ran 1 tests
Ran 2 tests
OK