When I get the error the engine.log  logs the attached engine-partial.log.

At vdsm.log at SPM host I don't see any error generated. 

Full logs also attached.

Thanx,

Alex

On Wed, Jan 23, 2019 at 5:53 PM Elad Ben Aharon <ebenahar@redhat.com> wrote:

Hi, 

Can you please provide engine.log and vdsm.log?

On Wed, Jan 23, 2019 at 5:41 PM Alex K <rightkicktech@gmail.com> wrote:

Hi all,

I have ovirt 4.2.7, self-hosted on top gluster, with two servers.

I have a specific VM which has encountered some snapshot issues.

The engine lists 4 snapshots and when trying to delete one of them I get "General command validation failure".

The VM was being backed up periodically by a python script which was creating a snapshot -> clone -> export -> delete clone -> delete snapshot. There were times where the VM was complaining of some illegal snapshots following such backup procedures and I had to delete such illegal snapshots references from the engine DB (following some steps found online), otherwise I would not be able to start the VM if it was shut down. Seems though that this is not a clean process and leaves the underlying image of the VM in an inconsistent state in regards to its snapshots as when checking the backing chain of the image file I get:

b46d8efe-885b-4a68-94ca-e8f437566bee (active VM) ->
b7673dca-6e10-4a0f-9885-1c91b86616af ->
4f636d91-a66c-4d68-8720-d2736a3765df ->
6826cb76-6930-4b53-a9f5-fdeb0e8012ac ->
61eea475-1135-42f4-b8d1-da6112946bac ->
604d84c3-8d5f-4bb6-a2b5-0aea79104e43 ->
1e75898c-9790-4163-ad41-847cfe84db40 ->
cf8707f2-bf1f-4827-8dc2-d7e6ffcc3d43 ->
3f54c98e-07ca-4810-82d8-cbf3964c7ce5 (raw image)

The bold ones are the ones shown at engine GUI. The VM runs normally without issues.

I was thinking if I could use qemu-img commit to consolidate and remove the snapshots that are not referenced from engine anymore. Any ideas from your side?

Thanx,

Alex

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--

Elad Ben Aharon

ASSOCIATE MANAGER, RHV storage QE

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