5:33 a.m.
Hi,
Absolutely, please create a bugzilla with engine logs attached so someone could start
investigating. Seems like a failure at a certain stage of execution is not handled all
that well yet.
There is an icon in the top right corner for running operations, but some actions that are
supposed to be fast are not using it indeed. You can always check the log output to see
what operations are happening at the moment though. In your case you will probably see a
command polling its dependent command once in a while or something like that.
Fedor Gavrilov
----- Original Message -----
From: "Jiří Sléžka" <jiri.slezka(a)slu.cz>
To: users(a)ovirt.org
Sent: Wednesday, May 20, 2020 9:56:54 AM
Subject: [ovirt-users] locked snapshot after snapshot preview
Hi,
Ovirt 4.3.9.4-1.el7, CentOS7...
colleague of me tried yesterday do a snapshot preview on his vm but
operation got stalled.
I can see in Task list in Manager operation "Preview VM Snapshot před AD
test of VM install_W10_LTSC-REK" in state Finalizing (6 hours ago)
In the Events I see
May 19, 2020, 4:00:17 PM
Failed to complete Snapshot-Preview před AD test for VM
install_W10_LTSC-REK.
18acb86e-581c-43f5-bf99-f8d738870976
May 19, 2020, 3:57:40 PM
Failed to run VM install_W10_LTSC-REK due to a failed validation:
[Cannot run VM. The VM is performing an operation on a Snapshot. Please
wait for the operation to finish, and try again.] (User: ******@*********).
d892b7dd-741b-4c61-ac37-b1077eaeaf79
When I grepping correlation id from failed run from engine log a got
zcat /var/log/ovirt-engine/engine.log-20200520.gz | grep
"d892b7dd-741b-4c61-ac37-b1077eaeaf79"
2020-05-19 15:57:40,435+02 INFO
[org.ovirt.engine.core.bll.RunVmCommand] (default task-210)
[d892b7dd-741b-4c61-ac37-b1077eaeaf79] Lock Acquired to object
'EngineLock:{exclusiveLocks='[2f1fb183-55ea-477c-a75b-625f889e4c79=VM]',
sharedLocks=''}'
2020-05-19 15:57:40,489+02 ERROR
[org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector]
(default task-210) [d892b7dd-741b-4c61-ac37-b1077eaeaf79] EVENT_ID:
USER_FAILED_RUN_VM(54), Failed to run VM install_W10_LTSC-REK due to a
failed validation: [Cannot run VM. The VM is performing an operation on
a Snapshot. Please wait for the operation to finish, and try again.]
(User: kra0002(a)CRO.slu.cz).
2020-05-19 15:57:40,489+02 WARN
[org.ovirt.engine.core.bll.RunVmCommand] (default task-210)
[d892b7dd-741b-4c61-ac37-b1077eaeaf79] Validation of action 'RunVm'
failed for user kra0002(a)CRO.slu.cz. Reasons:
VAR__ACTION__RUN,VAR__TYPE__VM,ACTION_TYPE_FAILED_VM_IS_DURING_SNAPSHOT
2020-05-19 15:57:40,489+02 INFO
[org.ovirt.engine.core.bll.RunVmCommand] (default task-210)
[d892b7dd-741b-4c61-ac37-b1077eaeaf79] Lock freed to object
'EngineLock:{exclusiveLocks='[2f1fb183-55ea-477c-a75b-625f889e4c79=VM]',
sharedLocks=''}'
greping correlation id on failed snapshot preview shows only INFO
events, not ERRORS nor WARNINGS and it looks to me like everything was
FINISHed
When I try to display locked entities a got
cd /usr/share/ovirt-engine/setup/dbutils
./unlock_entity.sh -q -t all -c
Locked VMs
vm_name | snapshot_id
----------------------+--------------------------------------
install_W10_LTSC-REK | 9d53c7b4-8ec5-4d31-8ab1-16bb75ab8f2b
Locked templates
template_name | disk_id
---------------+---------
Locked disks
vm_id | disk_id
--------------------------------------+--------------------------------------
2f1fb183-55ea-477c-a75b-625f889e4c79 | 707db1f6-0859-48ab-b9d0-a97619ed8b0b
Locked snapshots
vm_id | snapshot_id
--------------------------------------+--------------------------------------
2f1fb183-55ea-477c-a75b-625f889e4c79 | 9d53c7b4-8ec5-4d31-8ab1-16bb75ab8f2b
Illegal images
vm_name | image_guid
---------+------------
I am about to try unlock that snapshot but for sure...
* how can I be sure that snapshot operations is not still running (it
would be nice to have some sort of progress bar o better reporting what
is happening in Manager...)
* looks it like bug? Should I fill bugreport or publish more logs?
Cheers,
Jiri
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