[ OST Failure Report ] [ oVirt master ] [ 28-05-2017 ] [ 004_basic_sanity.hotunplug_disk ]

[Benny Zlotnik]

Looking into this. Looks like all LSM tasks finished but the engine memory
lock hasn't been released yet.

On Sun, May 28, 2017 at 5:17 PM, Dafna Ron <dron at redhat.com> wrote:

> *Hi All, *
>
> * We are seeing the same failure sporadically in three different places
> (hotunplug disk). We think this is a race condition which was introduced to
> OST with the the live storage migration test (lock on the disk is
> preventing the hotunplug). Test failed: [ 004_basic_sanity.hotunplug_disk]
> Link to suspected patches: https://gerrit.ovirt.org/#/c/77083
> <https://gerrit.ovirt.org/#/c/77083> Link to Job:
> http://jenkins.ovirt.org/job/test-repo_ovirt_experimental_master/6881
> <http://jenkins.ovirt.org/job/test-repo_ovirt_experimental_master/6881> *
>
>
> * Link to all logs:
> http://jenkins.ovirt.org/job/test-repo_ovirt_experimental_master/6881/artifact/exported-artifacts/basic-suit-master-el7/test_logs/basic-suite-master/post-004_basic_sanity.py/
> <http://jenkins.ovirt.org/job/test-repo_ovirt_experimental_master/6881/artifact/exported-artifacts/basic-suit-master-el7/test_logs/basic-suite-master/post-004_basic_sanity.py/>
> Error snippet from the log: <error> *
>
>
> Error Message
>
> status: 409
> reason: Conflict
> detail: Cannot hot unplug Virtual Disk. Disk vm0_disk0 is being moved or copied.
>
> Stacktrace
>
> Traceback (most recent call last):
>   File "/usr/lib64/python2.7/unittest/case.py", line 369, in run
>     testMethod()
>   File "/usr/lib/python2.7/site-packages/nose/case.py", line 197, in runTest
>     self.test(*self.arg)
>   File "/usr/lib/python2.7/site-packages/ovirtlago/testlib.py", line 129, in wrapped_test
>     test()
>   File "/usr/lib/python2.7/site-packages/ovirtlago/testlib.py", line 59, in wrapper
>     return func(get_test_prefix(), *args, **kwargs)
>   File "/usr/lib/python2.7/site-packages/ovirtlago/testlib.py", line 68, in wrapper
>     return func(prefix.virt_env.engine_vm().get_api(), *args, **kwargs)
>   File "/home/jenkins/workspace/test-repo_ovirt_experimental_master/ovirt-system-tests/basic-suite-master/test-scenarios/004_basic_sanity.py", line 498, in hotunplug_disk
>     disk.deactivate()
>   File "/usr/lib/python2.7/site-packages/ovirtsdk/infrastructure/brokers.py", line 31839, in deactivate
>     headers={"Correlation-Id":correlation_id}
>   File "/usr/lib/python2.7/site-packages/ovirtsdk/infrastructure/proxy.py", line 122, in request
>     persistent_auth=self.__persistent_auth
>   File "/usr/lib/python2.7/site-packages/ovirtsdk/infrastructure/connectionspool.py", line 79, in do_request
>     persistent_auth)
>   File "/usr/lib/python2.7/site-packages/ovirtsdk/infrastructure/connectionspool.py", line 162, in __do_request
>     raise errors.RequestError(response_code, response_reason, response_body)
> RequestError:
> status: 409
> reason: Conflict
> detail: Cannot hot unplug Virtual Disk. Disk vm0_disk0 is being moved or copied.
>
>
> from engine log:
> 2017-05-28 09:05:32,891-04 INFO  [org.ovirt.engine.core.bll.storage.disk.HotUnPlugDiskFromVmCommand] (default task-10) [6d47ba60-4491-48ab-bb1c-fb0cdbeb76b0] Failed to Acquire Lock to object 'EngineLock:{exclusiveLocks='[9e7d8b37-2afb-4012-9bc9-8cc277ac9cdd=<DISK, ACTION_TYPE_FAILED_DISKS_LOCKED$diskAliases vm0_disk0>]', sharedLocks='[461224f5-a2af-4be2-ba1b-3563a88f398c=<VM, ACTION_TYPE_FAILED_VM_IS_LOCKED>]'}'
> 2017-05-28 09:05:32,891-04 WARN  [org.ovirt.engine.core.bll.storage.disk.HotUnPlugDiskFromVmCommand] (default task-10) [6d47ba60-4491-48ab-bb1c-fb0cdbeb76b0] Validation of action 'HotUnPlugDiskFromVm' failed for user admin at internal-authz. Reasons: VAR__ACTION__HOT_UNPLUG,VAR__TYPE__DISK,ACTION_TYPE_FAILED_DISK_IS_BEING_MIGRATED,$DiskName vm0_disk0
> 2017-05-28 09:05:32,895-04 ERROR [org.ovirt.engine.api.restapi.resource.AbstractBackendResource] (default task-10) [] Operation Failed: [Cannot hot unplug Virtual Disk. Disk vm0_disk0 is being moved or copied.]
> 2017-05-28 09:05:33,323-04 INFO  [org.ovirt.engine.core.bll.storage.lsm.LiveMigrateVmDisksCommand] (DefaultQuartzScheduler8) [99f56ceb-3c13-423f-b015-71222a8fec01] Ending command 'org.ovirt.engine.core.bll.storage.lsm.LiveMigrateVmDisksCommand' successfully.
> 2017-05-28 09:05:33,324-04 INFO  [org.ovirt.engine.core.bll.storage.lsm.LiveMigrateVmDisksCommand] (DefaultQuartzScheduler8) [99f56ceb-3c13-423f-b015-71222a8fec01] Lock freed to object 'EngineLock:{exclusiveLocks='[9e7d8b37-2afb-4012-9bc9-8cc277ac9cdd=<DISK, ACTION_TYPE_FAILED_DISK_IS_BEING_MIGRATED$DiskName vm0_disk0>]', sharedLocks='[461224f5-a2af-4be2-ba1b-3563a88f398c=<VM, ACTION_TYPE_FAILED_OBJECT_LOCKED>]'}'
>
>
> *</error>*
>
>
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