Hi all,
to remove lock I found this script:

"
/[root@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@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@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.becche...@pg.infn.it <mailto:enrico.becche...@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
    <mlipc...@redhat.com <mailto:mlipc...@redhat.com>> wrote:


        On Tue, Feb 13, 2018 at 3:42 PM, Enrico Becchetti
        <enrico.becche...@pg.infn.it
        <mailto:enrico.becche...@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.becche...@pg.infn.it
            <mailto:enrico.becche...@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



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-- _______________________________________________________________________

            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
______________________________________________________________________


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Users mailing list
Users@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@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@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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