[ovirt-users] Import Domain and snapshot issue ... please help !!!

Enrico Becchetti enrico.becchetti at pg.infn.it
Fri Feb 16 10:01:15 UTC 2018


Hi all,
to remove lock I found this script:

"
/[root at ovirt-new dbutils]#  ./unlock_entity.sh  -t disk 
01f9b5f2-9e48-4c24-80e5-dca7f1d4d128//
//Caution, this operation may lead to data corruption and should be used 
with care. Please contact support prior to running this command//
//Are you sure you want to proceed? [y/n]//
//y//
//select fn_db_unlock_disk('01f9b5f2-9e48-4c24-80e5-dca7f1d4d128');//
////
//INSERT 0 1//
//unlock disk 01f9b5f2-9e48-4c24-80e5-dca7f1d4d128 completed successfully.//
"

/
but virtual disk is still lock.

Enrico


Il 16/02/2018 09:50, Enrico Becchetti ha scritto:
> After reboot engine virtual machine task disappear but virtual disk is 
> still locked ,
> any ideas to remove that lock ?
> Thanks again.
> Enrico
>
> l 16/02/2018 09:45, Enrico Becchetti ha scritto:
>>    Dear All,
>> Are there tools to remove this task (in attach) ?
>>
>> taskcleaner.sh it's seems doens't work:
>>
>> [root at ovirt-new dbutils]# ./taskcleaner.sh -v -r
>> select exists (select * from information_schema.tables where 
>> table_schema = 'public' and table_name = 'command_entities');
>>  t
>> SELECT DeleteAllCommands();
>>                  6
>> [root at ovirt-new dbutils]# ./taskcleaner.sh -v -R
>> select exists (select * from information_schema.tables where 
>> table_schema = 'public' and table_name = 'command_entities');
>>  t
>>  This will remove all async_tasks table content!!!
>> Caution, this operation should be used with care. Please contact 
>> support prior to running this command
>> Are you sure you want to proceed? [y/n]
>> y
>> TRUNCATE TABLE async_tasks cascade;
>> TRUNCATE TABLE
>>
>> after that I see the same running tasks . Does It make sense ?
>>
>> Thanks
>> Best Regards
>> Enrico
>>
>>
>> Il 14/02/2018 15:53, Enrico Becchetti ha scritto:
>>> Dear All,
>>> old snapsahots seem to be the problem. In fact domain DATA_FC 
>>> running in 3.5 had some
>>> lvm snapshot volume. Before deactivate DATA_FC  I didin't remove 
>>> this snapshots so when
>>> I attach this volume to new ovirt 4.2 and import all vm at the same 
>>> time I also import
>>> all snapshots but now How I can remove them ? Throught ovirt web 
>>> interface the remove
>>> tasks running are still hang. Are there any other methods ?
>>> Thank to following this case.
>>> Best Regads
>>> Enrico
>>>
>>> Il 14/02/2018 14:34, Maor Lipchuk ha scritto:
>>>> Seems like all the engine logs are full with the same error.
>>>> From vdsm.log.16.xz I can see an error which might explain this 
>>>> failure:
>>>>
>>>> 2018-02-12 07:51:16,161+0100 INFO  (ioprocess communication 
>>>> (40573)) [IOProcess] Starting ioprocess (__init__:447)
>>>> 2018-02-12 07:51:16,201+0100 INFO  (jsonrpc/3) [vdsm.api] FINISH 
>>>> mergeSnapshots return=None from=::ffff:10.0.0.46,57032, 
>>>> flow_id=fd4041b3-2301-44b0-aa65-02bd089f6568, 
>>>> task_id=1be430dc-eeb0-4dc9-92df-3f5b7943c6e0 (api:52)
>>>> 2018-02-12 07:51:16,275+0100 INFO  (jsonrpc/3) 
>>>> [jsonrpc.JsonRpcServer] RPC call Image.mergeSnapshots succeeded in 
>>>> 0.13 seconds (__init__:573)
>>>> 2018-02-12 07:51:16,276+0100 INFO  (tasks/1) 
>>>> [storage.ThreadPool.WorkerThread] START task 
>>>> 1be430dc-eeb0-4dc9-92df-3f5b7943c6e0 (cmd=<bound method Task.commit 
>>>> of <vdsm.storage.task.Task instance at 0x7fa1a0785248>>, args=None) 
>>>> (threadPool:208)
>>>> 2018-02-12 07:51:16,543+0100 INFO  (tasks/1) [storage.Image] 
>>>> sdUUID=47b7c9aa-ef53-48bc-bb55-4a1a0ba5c8d5 vmUUID= 
>>>> imgUUID=ee9ab34c-47a8-4306-95d7-dd4318c69ef5 
>>>> ancestor=9cdc96de-65b7-4187-8ec3-8190b78c1825 
>>>> successor=8f595e80-1013-4c14-a2f5-252bce9526fdpostZero=False 
>>>> discard=False (image:1240)
>>>> 2018-02-12 07:51:16,669+0100 ERROR (tasks/1) 
>>>> [storage.TaskManager.Task] 
>>>> (Task='1be430dc-eeb0-4dc9-92df-3f5b7943c6e0') Unexpected error 
>>>> (task:875)
>>>> Traceback (most recent call last):
>>>>   File "/usr/lib/python2.7/site-packages/vdsm/storage/task.py", 
>>>> line 882, in _run
>>>>     return fn(*args, **kargs)
>>>>   File "/usr/lib/python2.7/site-packages/vdsm/storage/task.py", 
>>>> line 336, in run
>>>>     return self.cmd(*self.argslist, **self.argsdict)
>>>>   File 
>>>> "/usr/lib/python2.7/site-packages/vdsm/storage/securable.py", line 
>>>> 79, in wrapper
>>>>     return method(self, *args, **kwargs)
>>>>   File "/usr/lib/python2.7/site-packages/vdsm/storage/sp.py", line 
>>>> 1853, in mergeSnapshots
>>>>     discard)
>>>>   File "/usr/lib/python2.7/site-packages/vdsm/storage/image.py", 
>>>> line 1251, in merge
>>>>     srcVol = vols[successor]
>>>> KeyError: u'8f595e80-1013-4c14-a2f5-252bce9526fd'
>>>>
>>>> Ala, maybe you know if there is any known issue with mergeSnapshots?
>>>> The usecase here are VMs from oVirt 3.5 which got registered to 
>>>> oVirt 4.2.
>>>>
>>>> Regards,
>>>> Maor
>>>>
>>>>
>>>> On Wed, Feb 14, 2018 at 10:11 AM, Enrico Becchetti 
>>>> <enrico.becchetti at pg.infn.it <mailto:enrico.becchetti at pg.infn.it>> 
>>>> wrote:
>>>>
>>>>       Hi,
>>>>     also you can download them throught these
>>>>     links:
>>>>
>>>>     https://owncloud.pg.infn.it/index.php/s/QpsTyGxtRTPYRTD
>>>>     <https://owncloud.pg.infn.it/index.php/s/QpsTyGxtRTPYRTD>
>>>>     https://owncloud.pg.infn.it/index.php/s/ph8pLcABe0nadeb
>>>>     <https://owncloud.pg.infn.it/index.php/s/ph8pLcABe0nadeb>
>>>>
>>>>     Thanks again !!!!
>>>>
>>>>     Best Regards
>>>>     Enrico
>>>>
>>>>>     Il 13/02/2018 14:52, Maor Lipchuk ha scritto:
>>>>>>
>>>>>>
>>>>>>     On Tue, Feb 13, 2018 at 3:51 PM, Maor Lipchuk
>>>>>>     <mlipchuk at redhat.com <mailto:mlipchuk at redhat.com>> wrote:
>>>>>>
>>>>>>
>>>>>>         On Tue, Feb 13, 2018 at 3:42 PM, Enrico Becchetti
>>>>>>         <enrico.becchetti at pg.infn.it
>>>>>>         <mailto:enrico.becchetti at pg.infn.it>> wrote:
>>>>>>
>>>>>>             see the attach files please ... thanks for your
>>>>>>             attention !!!
>>>>>>
>>>>>>
>>>>>>
>>>>>>         Seems like the engine logs does not contain the entire
>>>>>>         process, can you please share older logs since the import
>>>>>>         operation?
>>>>>>
>>>>>>
>>>>>>     And VDSM logs as well from your host
>>>>>>
>>>>>>             Best Regards
>>>>>>             Enrico
>>>>>>
>>>>>>
>>>>>>             Il 13/02/2018 14:09, Maor Lipchuk ha scritto:
>>>>>>>
>>>>>>>
>>>>>>>             On Tue, Feb 13, 2018 at 1:48 PM, Enrico Becchetti
>>>>>>>             <enrico.becchetti at pg.infn.it
>>>>>>>             <mailto:enrico.becchetti at pg.infn.it>> wrote:
>>>>>>>
>>>>>>>                  Dear All,
>>>>>>>                 I have been using ovirt for a long time with
>>>>>>>                 three hypervisors and an external engine running
>>>>>>>                 in a centos vm .
>>>>>>>
>>>>>>>                 This three hypervisors have HBAs and access to
>>>>>>>                 fiber channel storage. Until recently I used
>>>>>>>                 version 3.5, then I reinstalled everything from
>>>>>>>                 scratch and now I have 4.2.
>>>>>>>
>>>>>>>                 Before formatting everything, I detach the
>>>>>>>                 storage data domani (FC) with the virtual
>>>>>>>                 machines and reimported it to the new 4.2 and
>>>>>>>                 all went well. In
>>>>>>>                 this domain there were virtual machines with and
>>>>>>>                 without snapshots.
>>>>>>>
>>>>>>>                 Now I have two problems. The first is that if I
>>>>>>>                 try to delete a snapshot the process is not end
>>>>>>>                 successful and remains hanging and the second
>>>>>>>                 problem is that
>>>>>>>                 in one case I lost the virtual machine !!!
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>             Not sure that I fully understand the scneario.'
>>>>>>>             How was the virtual machine got lost if you only
>>>>>>>             tried to delete a snapshot?
>>>>>>>
>>>>>>>
>>>>>>>                 So I need your help to kill the three running
>>>>>>>                 zombie tasks because with taskcleaner.sh I can't
>>>>>>>                 do anything and then I need to know how I can
>>>>>>>                 delete the old snapshots
>>>>>>>                 made with the 3.5 without losing other data or
>>>>>>>                 without having new processes that terminate
>>>>>>>                 correctly.
>>>>>>>
>>>>>>>                 If you want some log files please let me know.
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>             Hi Enrico,
>>>>>>>
>>>>>>>             Can you please attach the engine and VDSM logs
>>>>>>>
>>>>>>>
>>>>>>>                 Thank you so much.
>>>>>>>                 Best Regards
>>>>>>>                 Enrico
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>                 _______________________________________________
>>>>>>>                 Users mailing list
>>>>>>>                 Users at ovirt.org <mailto:Users at ovirt.org>
>>>>>>>                 http://lists.ovirt.org/mailman/listinfo/users
>>>>>>>                 <http://lists.ovirt.org/mailman/listinfo/users>
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>             -- 
>>>>>>             _______________________________________________________________________
>>>>>>
>>>>>>             Enrico Becchetti                    Servizio di Calcolo e Reti
>>>>>>
>>>>>>             Istituto Nazionale di Fisica Nucleare - Sezione di Perugia
>>>>>>             Via Pascoli,c/o Dipartimento di Fisica  06123 Perugia (ITALY)
>>>>>>             Phone:+39 075 5852777 <tel:+39%20075%20585%202777>              Mail: Enrico.Becchetti<at>pg.infn.it <http://pg.infn.it>
>>>>>>             ______________________________________________________________________
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>>     -- 
>>>>>     _______________________________________________________________________
>>>>>
>>>>>     Enrico Becchetti                    Servizio di Calcolo e Reti
>>>>>
>>>>>     Istituto Nazionale di Fisica Nucleare - Sezione di Perugia
>>>>>     Via Pascoli,c/o Dipartimento di Fisica  06123 Perugia (ITALY)
>>>>>     Phone:+39 075 5852777 <tel:+39%20075%20585%202777>              Mail: Enrico.Becchetti<at>pg.infn.it <http://pg.infn.it>
>>>>>     ______________________________________________________________________
>>>>
>>>>
>>>>     -- 
>>>>     _______________________________________________________________________
>>>>
>>>>     Enrico Becchetti                    Servizio di Calcolo e Reti
>>>>
>>>>     Istituto Nazionale di Fisica Nucleare - Sezione di Perugia
>>>>     Via Pascoli,c/o Dipartimento di Fisica  06123 Perugia (ITALY)
>>>>     Phone:+39 075 5852777 <tel:+39%20075%20585%202777>              Mail: Enrico.Becchetti<at>pg.infn.it <http://pg.infn.it>
>>>>     ______________________________________________________________________
>>>>
>>>>
>>>
>>> -- 
>>> _______________________________________________________________________
>>>
>>> Enrico Becchetti                    Servizio di Calcolo e Reti
>>>
>>> Istituto Nazionale di Fisica Nucleare - Sezione di Perugia
>>> Via Pascoli,c/o Dipartimento di Fisica  06123 Perugia (ITALY)
>>> Phone:+39 075 5852777             Mail: Enrico.Becchetti<at>pg.infn.it
>>> ______________________________________________________________________
>>>
>>>
>>> _______________________________________________
>>> Users mailing list
>>> Users at ovirt.org
>>> http://lists.ovirt.org/mailman/listinfo/users
>>
>>
>> -- 
>> _______________________________________________________________________
>>
>> Enrico Becchetti                    Servizio di Calcolo e Reti
>>
>> Istituto Nazionale di Fisica Nucleare - Sezione di Perugia
>> Via Pascoli,c/o Dipartimento di Fisica  06123 Perugia (ITALY)
>> Phone:+39 075 5852777             Mail: Enrico.Becchetti<at>pg.infn.it
>> ______________________________________________________________________
>>
>>
>> _______________________________________________
>> Users mailing list
>> Users at ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/users
>
>
> -- 
> _______________________________________________________________________
>
> Enrico Becchetti                    Servizio di Calcolo e Reti
>
> Istituto Nazionale di Fisica Nucleare - Sezione di Perugia
> Via Pascoli,c/o Dipartimento di Fisica  06123 Perugia (ITALY)
> Phone:+39 075 5852777             Mail: Enrico.Becchetti<at>pg.infn.it
> ______________________________________________________________________
>
>
> _______________________________________________
> Users mailing list
> Users at ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users


-- 
_______________________________________________________________________

Enrico Becchetti                    Servizio di Calcolo e Reti

Istituto Nazionale di Fisica Nucleare - Sezione di Perugia
Via Pascoli,c/o Dipartimento di Fisica  06123 Perugia (ITALY)
Phone:+39 075 5852777             Mail: Enrico.Becchetti<at>pg.infn.it
______________________________________________________________________

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