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 <giulio@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 <giulio@di.unimi.it
<mailto:giulio@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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Giulio Casella giulio at di.unimi.it
System and network manager
Computer Science Dept. - University of Milano