[ovirt-users] Hung task finalizing live migration

Gervais de Montbrun gervais at demontbrun.com
Sat Sep 10 15:09:01 UTC 2016 

YAY!! Glad it worked for you.

:-)

Cheers,
Gervais



> On Sep 10, 2016, at 12:05 PM, Maton, Brett <matonb at ltresources.co.uk> wrote:
> 
> Way-hey! finally the task has gone and I can do 'stuff' with that VM again.
> 
> Thanks Gervais, you're a star
> 
> On 10 September 2016 at 15:40, Maton, Brett <matonb at ltresources.co.uk <mailto:matonb at ltresources.co.uk>> wrote:
> Thanks Gervais I'll give that a go
> 
> On 10 September 2016 at 15:39, Gervais de Montbrun <gervais at demontbrun.com <mailto:gervais at demontbrun.com>> wrote:
> Hi Maton,
> 
> I have seen tasks in a weird state on my cluster also. I've had a vm get "stuck" during a migration where it says "migrating to" in the web GUI, but it has finished migrating hours ago... If I click "Cancel Migraton" the gui tells me that it is not migrating, but I can't do any action on the vm because I am then told that the vm can't be acted upon while it is migrating. I also try to kill the task, but there are none listed
> 
> What has worked for me has been to put my hosted-engine in global maintenance mode, then ssh into the hosted engine and run the "engine-setup" command. I am not saying the is the best course of action, but when the engine comes back online the task is cleared.
> 
> Cheers,
> Gervais
> 
> 
> 
>> On Sep 10, 2016, at 11:06 AM, Maton, Brett <matonb at ltresources.co.uk <mailto:matonb at ltresources.co.uk>> wrote:
>> 
>> Anyone know how to fix this broken task ?
>> 
>> It's persisted through a reboot of all hosts and the engine, something needs deleting from the database to clear the task and release the locked disk
>> 
>> On 8 September 2016 at 13:25, Maton, Brett <matonb at ltresources.co.uk <mailto:matonb at ltresources.co.uk>> wrote:
>> Thanks for the pointer Mikhail, however I don't get any tasks listed with that command:
>> 
>> vdsClient -s 0 getAllTasksStatuses
>> 
>> /usr/share/vdsm/vdsClient.py:33: DeprecationWarning: vdscli uses xmlrpc. since ovirt 3.6 xmlrpc is deprecated, please use vdsm.jsonrpcvdscli
>>   from vdsm import utils, vdscli, constants
>> 
>> {'status': {'message': 'OK', 'code': 0}, 'allTasksStatus': {}}
>> 
>> 
>> On 8 September 2016 at 09:51, Краснобаев Михаил <milo1 at ya.ru <mailto:milo1 at ya.ru>> wrote:
>> Hi,
>>  
>> There is a way to cancel a running task  -  look here http://lists.ovirt.org/pipermail/users/2014-November/028946.html <http://lists.ovirt.org/pipermail/users/2014-November/028946.html>
>> I was able to stop snapshot deletion this way.
>>  
>> Best, Mikhail.
>>  
>> 08.09.2016, 08:14, "Maton, Brett" <matonb at ltresources.co.uk <mailto:matonb at ltresources.co.uk>>:
>>> Any suggestions ?
>>> 
>>> THe task has been hung for 5 days now, I can't start the machine or destroy it.
>>> 
>>> 
>>> On 7 September 2016 at 06:49, Maton, Brett <matonb at ltresources.co.uk <mailto:matonb at ltresources.co.uk>> wrote:
>>> Sorry just hit reply....
>>> 
>>> I'm seeing these errors in the logs which look related to the problem:
>>> 
>>> 
>>> 2016-09-07 06:46:35,123 ERROR [org.ovirt.engine.core.bll.tasks.CommandCallbacksPoller] (DefaultQuartzScheduler6) [19c58c0d] Failed invoking callback end method 'onFailed' for command '07608003-ca05-4e2e-b917-85ce525c011b' with exception 'null', the callback is marked for end method retries
>>> 2016-09-07 06:46:45,184 ERROR [org.ovirt.engine.core.bll.Com <http://org.ovirt.engine.core.bll.com/>mandsFactory] (DefaultQuartzScheduler7) [19c58c0d] Error in invocating CTOR of command 'LiveMigrateDisk': null
>>> 2016-09-07 06:46:45,185 ERROR [org.ovirt.engine.core.bll.tasks.CommandCallbacksPoller] (DefaultQuartzScheduler7) [19c58c0d] Failed invoking callback end method 'onFailed' for command '07608003-ca05-4e2e-b917-85ce525c011b' with exception 'null', the callback is marked for end method retries
>>> 
>>> On 5 September 2016 at 06:46, Nir Soffer <nsoffer at redhat.com <mailto:nsoffer at redhat.com>> wrote:
>>> Hi Maton,
>>> 
>>> Please reply to the list, not to me directly.
>>> 
>>> Ala, can you look at this? is this a known issue?
>>> 
>>> Thanks,
>>> Nir
>>> 
>>> On Mon, Sep 5, 2016 at 8:43 AM, Maton, Brett <matonb at ltresources.co.uk <mailto:matonb at ltresources.co.uk>> wrote:
>>> > Log files as requested
>>> >
>>> > https://ufile.io/4fc35 <https://ufile.io/4fc35> vdsm log
>>> > https://ufile.io/e9836 <https://ufile.io/e9836> engine 03-Sep
>>> > https://ufile.io/15f37 <https://ufile.io/15f37> engine 04-Sep
>>> >
>>> > vdsm log stops on the 01-Sep...
>>> >
>>> > Couple of entries from the event log:
>>> >
>>> > Sep 3, 2016 7:31:07 PM    Snapshot 'Auto-generated for Live Storage
>>> > Migration' deletion for VM 'lv01' has been completed.
>>> > Sep 3, 2016 6:46:46 PM    Snapshot 'Auto-generated for Live Storage
>>> > Migration' deletion for VM 'lv01' was initiated by SYSTEM
>>> >
>>> > And the related tasks
>>> >
>>> > Removing Snapshot Auto-generated for Live Storage Migration of VM lv01
>>> > Sep 3, 2016 6:46:44 PM        N/A    29f45ca9
>>> > Validating    Sep 3, 2016 6:46:44 PM    until    Sep 3, 2016 6:46:44 PM
>>> > Executing    Sep 3, 2016 6:46:44 PM    until    Sep 3, 2016 7:31:06 PM
>>> >
>>> > Finalizing    Sep 3, 2016 7:31:06 PM        N/A
>>> >
>>> >
>>> >
>>> > On 4 September 2016 at 14:27, Nir Soffer <nsoffer at redhat.com <mailto:nsoffer at redhat.com>> wrote:
>>> >>
>>> >> On Sun, Sep 4, 2016 at 12:40 PM, Maton, Brett <matonb at ltresources.co.uk <mailto:matonb at ltresources.co.uk>>
>>> >> wrote:
>>> >>>
>>> >>> How do I fix / kill a hung vdsm task?
>>> >>>
>>> >>> It seems to have completed the task but is stuck finalising.
>>> >>>
>>> >>> Removing Snapshot Auto-generated for Live Storage Migration
>>> >>> Validating
>>> >>> Executing
>>> >>> (hour glass) Finalizing
>>> >>>
>>> >>> Task has been 'stuck' finalising for over 13 hours
>>> >>
>>> >>
>>> >> Can you share engine and vdsm logs since the time the merge was started?
>>> >>
>>> >> Nir
>>> >
>>> >
>>> ,
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>>> Users mailing list
>>> Users at ovirt.org <mailto:Users at ovirt.org>
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>>  
>> -- 
>> С уважением, Краснобаев Михаил.
>>  
>>  
>> 
>> 
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> 
> 
> 

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