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From "Mandar Barve (JIRA)" <>
Subject [jira] [Commented] (CLOUDSTACK-5583) vmopsSnapshot plug-in (XenServer) does not return an error when it should
Date Fri, 14 Mar 2014 06:26:46 GMT


Mandar Barve commented on CLOUDSTACK-5583:

I tried to reproduce the issue the way you mentioned with few changes. I don't have iSCSI
SAN on my setup. I connected a 2 GB disk that I presented as storage tagged NFS primary to
CS. I created a 1GB disk offering and then deployed a VM on this new primary. Took a couple
of snapshots like you mentioned and when tried to revert to one of them I did see an error
in vmops log that said revert_memory_snapshot returned NULL. Exception was thrown with async
job status result code 530 and text response as "Failed to revert VM snapshot". I think this
exception came later the vmops snapshot plugin code itself may not have landed into exception
handling path. I need to double check this.

Is this what you are referring to? Could you attach snippets of SMlog and mops.log when the
failure happened to the JIRA?


> vmopsSnapshot plug-in (XenServer) does not return an error when it should
> -------------------------------------------------------------------------
>                 Key: CLOUDSTACK-5583
>                 URL:
>             Project: CloudStack
>          Issue Type: Bug
>      Security Level: Public(Anyone can view this level - this is the default.) 
>          Components: Xen
>    Affects Versions: 4.3.0
>         Environment: XenServer 6.1
>            Reporter: Mike Tutkowski
>             Fix For: 4.3.0
> I tried to revert a VM snapshot and one of my storage repositories had an insufficient
amount of space. The plug-in did not return an error message (it returned "0").
> From the XenServer vmopsSnapshot plug-in's revert_memory_snapshot method:
> [root@XenServer-6 ~]# xe snapshot-revert snapshot-uuid=82e33f6d-59f3-a26d-4171-d51cd58716d8
> Error code: SR_BACKEND_FAILURE_44
> Error parameters: , There is insufficient space, 
> An error should be returned from the plug-in instead of "0".

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