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[Qemu-devel] [PATCH] qemu-iotests: Extend non-shared storage migration t
From: |
Kashyap Chamarthy |
Subject: |
[Qemu-devel] [PATCH] qemu-iotests: Extend non-shared storage migration test (194) |
Date: |
Mon, 28 Aug 2017 13:29:52 +0200 |
This is the follow-up patch that was discussed[*] as part of feedback to
qemu-iotest 194.
Changes in this patch:
- Supply 'job-id' parameter to `drive-mirror` invocation.
- Issue `block-job-cancel` command on the source QEMU to gracefully
complete the mirroring operation.
- Stop the NBD server on the destination QEMU.
- Finally, exit once the event BLOCK_JOB_COMPLETED is emitted.
With the above, the test will also be (almost) in sync with the
procedure outlined in the document live-block-operations.rst[+]
(section: "QMP invocation for live storage migration with
``drive-mirror`` + NBD").
[*] https://lists.nongnu.org/archive/html/qemu-devel/2017-08/msg04820.html
-- qemu-iotests: add 194 non-shared storage migration test
[+]
https://git.qemu.org/gitweb.cgi?p=qemu.git;a=blob;f=docs/interop/live-block-operations.rst
Signed-off-by: Kashyap Chamarthy <address@hidden>
---
I wonder:
- Is it worth printing the MIGRATION event state change?
- Since we're not checking on the MIGRATION event anymore, can
the migration state change events related code (that is triggerred
by setting 'migrate-set-capabilities') be simply removed?
---
tests/qemu-iotests/194 | 17 ++++++++++++-----
tests/qemu-iotests/194.out | 14 ++++++++------
2 files changed, 20 insertions(+), 11 deletions(-)
diff --git a/tests/qemu-iotests/194 b/tests/qemu-iotests/194
index
8028111e21bed5cf4a2e8e32dc04aa5a9ea9caca..8d746be9d0033f478f11886ee93f95b0fa55bab0
100755
--- a/tests/qemu-iotests/194
+++ b/tests/qemu-iotests/194
@@ -46,16 +46,17 @@ iotests.log('Launching NBD server on destination...')
iotests.log(dest_vm.qmp('nbd-server-start', addr={'type': 'unix', 'data':
{'path': nbd_sock_path}}))
iotests.log(dest_vm.qmp('nbd-server-add', device='drive0', writable=True))
-iotests.log('Starting drive-mirror on source...')
+iotests.log('Starting `drive-mirror` on source...')
iotests.log(source_vm.qmp(
'drive-mirror',
device='drive0',
target='nbd+unix:///drive0?socket={0}'.format(nbd_sock_path),
sync='full',
format='raw', # always raw, the server handles the format
- mode='existing'))
+ mode='existing',
+ job_id='mirror-job0'))
-iotests.log('Waiting for drive-mirror to complete...')
+iotests.log('Waiting for `drive-mirror` to complete...')
iotests.log(source_vm.event_wait('BLOCK_JOB_READY'),
filters=[iotests.filter_qmp_event])
@@ -66,8 +67,14 @@ dest_vm.qmp('migrate-set-capabilities',
capabilities=[{'capability': 'events', 'state': True}])
iotests.log(source_vm.qmp('migrate',
uri='unix:{0}'.format(migration_sock_path)))
+iotests.log('Gracefully ending the `drive-mirror` job on source...')
+iotests.log(source_vm.qmp('block-job-cancel', device='mirror-job0'))
+
+iotests.log('Stopping the NBD server on destination...')
+iotests.log(dest_vm.qmp('nbd-server-stop'))
+
while True:
- event = source_vm.event_wait('MIGRATION')
+ event = source_vm.event_wait('BLOCK_JOB_COMPLETED')
iotests.log(event, filters=[iotests.filter_qmp_event])
- if event['data']['status'] in ('completed', 'failed'):
+ if event['event'] == 'BLOCK_JOB_COMPLETED':
break
diff --git a/tests/qemu-iotests/194.out b/tests/qemu-iotests/194.out
index
ae501fecacb706b1851cb9063ce9c9d5a28bb7ea..3a0e3a26e5342b0e3f0373623efd9d2b3ee8d2be
100644
--- a/tests/qemu-iotests/194.out
+++ b/tests/qemu-iotests/194.out
@@ -2,12 +2,14 @@ Launching VMs...
Launching NBD server on destination...
{u'return': {}}
{u'return': {}}
-Starting drive-mirror on source...
+Starting `drive-mirror` on source...
{u'return': {}}
-Waiting for drive-mirror to complete...
-{u'timestamp': {u'seconds': 'SECS', u'microseconds': 'USECS'}, u'data':
{u'device': u'drive0', u'type': u'mirror', u'speed': 0, u'len': 1073741824,
u'offset': 1073741824}, u'event': u'BLOCK_JOB_READY'}
+Waiting for `drive-mirror` to complete...
+{u'timestamp': {u'seconds': 'SECS', u'microseconds': 'USECS'}, u'data':
{u'device': u'mirror-job0', u'type': u'mirror', u'speed': 0, u'len':
1073741824, u'offset': 1073741824}, u'event': u'BLOCK_JOB_READY'}
Starting migration...
{u'return': {}}
-{u'timestamp': {u'seconds': 'SECS', u'microseconds': 'USECS'}, u'data':
{u'status': u'setup'}, u'event': u'MIGRATION'}
-{u'timestamp': {u'seconds': 'SECS', u'microseconds': 'USECS'}, u'data':
{u'status': u'active'}, u'event': u'MIGRATION'}
-{u'timestamp': {u'seconds': 'SECS', u'microseconds': 'USECS'}, u'data':
{u'status': u'completed'}, u'event': u'MIGRATION'}
+Gracefully ending the `drive-mirror` job on source...
+{u'return': {}}
+Stopping the NBD server on destination...
+{u'return': {}}
+{u'timestamp': {u'seconds': 'SECS', u'microseconds': 'USECS'}, u'data':
{u'device': u'mirror-job0', u'type': u'mirror', u'speed': 0, u'len':
1073741824, u'offset': 1073741824}, u'event': u'BLOCK_JOB_COMPLETED'}
--
2.9.5
- [Qemu-devel] [PATCH] qemu-iotests: Extend non-shared storage migration test (194),
Kashyap Chamarthy <=