[ovirt-users] Can't remove snapshot

[Michal Skrivanek]

> On 03 Feb 2016, at 10:37, Rik Theys <Rik.Theys at esat.kuleuven.be> wrote:
> 
> Hi,
> 
> In the mean time I've noticed the following entries in our periodic
> logcheck output:
> 
> Feb  3 09:05:53 orinoco journal: block copy still active: disk 'vda' not
> ready for pivot yet
> Feb  3 09:05:53 orinoco journal: vdsm root ERROR Unhandled
> exception#012Traceback (most recent call last):#012  File
> "/usr/lib/python2.7/site-packages/vdsm/utils.py", line 734, in
> wrapper#012    return f(*a, **kw)#012  File
> "/usr/share/vdsm/virt/vm.py", line 5168, in run#012
> self.tryPivot()#012  File "/usr/share/vdsm/virt/vm.py", line 5137, in
> tryPivot#012    ret = self.vm._dom.blockJobAbort(self.drive.name,
> flags)#012  File "/usr/share/vdsm/virt/virdomain.py", line 68, in f#012
>   ret = attr(*args, **kwargs)#012  File
> "/usr/lib/python2.7/site-packages/vdsm/libvirtconnection.py", line 124,
> in wrapper#012    ret = f(*args, **kwargs)#012  File
> "/usr/lib64/python2.7/site-packages/libvirt.py", line 733, in
> blockJobAbort#012    if ret == -1: raise libvirtError
> ('virDomainBlockJobAbort() failed', dom=self)#012libvirtError: block
> copy still active: disk 'vda' not ready for pivot yet
> 
> This is from the host running the VM.
> 
> Note that this host is not the SPM of the cluster. I always thought all
> operations on disk volumes happened on the SPM host?
> 
> My question still remains:
> 
>> I can see the snapshot in the "Disk snapshot" tab of the storage. It has
>> a status of "illegal". Is it OK to (try to) remove this snapshot? Will
>> this impact the running VM and/or disk image?

No, it’s not ok to remove it while live merge(apparently) is still ongoing
I guess that’s a live merge bug? 

Thanks,
michal

> 
> 
> Regards,
> 
> Rik
> 
> On 02/03/2016 10:26 AM, Rik Theys wrote:
>> Hi,
>> 
>> I created a snapshot of a running VM prior to an OS upgrade. The OS
>> upgrade has now been succesful and I would like to remove the snapshot.
>> I've selected the snapshot in the UI and clicked Delete to start the task.
>> 
>> After a few minutes, the task has failed. When I click delete again on
>> the same snapshot, the failed message is returned after a few seconds.
>> 
>>> From browsing through the engine log (attached) it seems the snapshot
>> was correctly merged in the first try but something went wrong in the
>> finalizing fase. On retries, the log indicates the snapshot/disk image
>> no longer exists and the removal of the snapshot fails for this reason.
>> 
>> Is there any way to clean up this snapshot?
>> 
>> I can see the snapshot in the "Disk snapshot" tab of the storage. It has
>> a status of "illegal". Is it OK to (try to) remove this snapshot? Will
>> this impact the running VM and/or disk image?
>> 
>> Regards,
>> 
>> Rik
>> 
>> 
>> 
>> _______________________________________________
>> Users mailing list
>> Users at ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/users
>> 
> 
> 
> -- 
> Rik Theys
> System Engineer
> KU Leuven - Dept. Elektrotechniek (ESAT)
> Kasteelpark Arenberg 10 bus 2440  - B-3001 Leuven-Heverlee
> +32(0)16/32.11.07
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