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

Enrico Becchetti enrico.becchetti at pg.infn.it
Fri Feb 16 08:45:16 UTC 2018


    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
______________________________________________________________________

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