Hi Giulio,

Indeed it seems that there's an inconsistency between the storage and the
database.
Somehow the template's disk was removed from the storage. Your logs don't
tell how and when.

This is what needs to be done in order to get rid of the stale entries -
run in the database:

Delete from vm_device where device_id =
'6949d47a-0d38-468e-ad4e-670372841174';
Delete from images where image_group_id =
'6949d47a-0d38-468e-ad4e-670372841174';
Delete from base_disks where disk_id =
'6949d47a-0d38-468e-ad4e-670372841174';
Delete from vm_static where vm_guid =
'6ec76d42-98a6-4094-a76c-af1b639c5b30';


If it happens again, please file a BZ with the full logs of engine and
vdsm, so we can investigate this issue.
Feel free to ask anything if you got further questions.

Regards
Idan

On Mon, May 2, 2016 at 2:36 PM, Giulio Casella <giu...@di.unimi.it> wrote:

> Hi Idan,
> you can find attached some snippet of my logs (vdsm.log from SPM host and
> engine.log from manager).
> Anyway I think logs are clear: there's no template on disk, only on engine
> database.
>
> My setup is composed of 3 datacenters (with clusters of 4, 4, and 6 hosts
> respectively). I have about a hundred templates, and about 1500 virtual
> machines.
>
> The step to reproduce is quite simple: in admin portal right click on the
> "damaged" template, remove. Other templates deletion work fine.
>
> Thanks,
> Giulio
>
> Il 01/05/2016 08:37, Idan Shaby ha scritto:
>
>> Hi,
>>
>> Can you please attach the engine and vdsm logs?
>> Also, can you describe your setup and the steps that reproduced this
>> error?
>>
>>
>> Thanks,
>> Idan
>>
>> On Wed, Apr 27, 2016 at 1:47 PM, Giulio Casella <giu...@di.unimi.it
>> <mailto:giu...@di.unimi.it>> wrote:
>>
>>     Hi all,
>>     I have a problem deleting a template from admin portal.
>>     In file /var/log/vdsm/vdsm.log (on SPM hypervisor) I got:
>>
>>     jsonrpc.Executor/4::ERROR::2016-04-27
>>     10:19:57,122::hsm::1518::Storage.HSM::(deleteImage) Empty or not
>>     found image <disk uuid> in SD <storage domain UUID> [...]
>>
>>     Looking in the (data) storage domain the disk with that UUID doesn't
>>     exists.
>>     It seems I reached an inconsistent state between engine database and
>>     images on disk.
>>
>>     Is there a (safe) way to rebuild a consistent situation? Maybe
>>     deleting entries from database?
>>
>>     My setup is based:
>>     manager RHEV 3.5.8-0.1.el6ev
>>     hypervisors: RHEV Hypervisor - 7.2 - 20160328.0.el7ev
>>
>>
>>     Thanx in advance,
>>     Giulio
>>
>>     _______________________________________________
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>>     Users@ovirt.org <mailto:Users@ovirt.org>
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>>
>>
>>
> --
> Giulio Casella                                    giulio at di.unimi.it
> System and network manager
> Computer Science Dept. - University of Milano
>
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