[ovirt-users] Ovirt snapshot failing on one VM

Tue Apr 22 15:19:20 UTC 2014

No alert in web ui, I restarted the VM yesterday just in case, no change. I
also restored an earlier snapshot and tried to re-snapshot, same result.

*Steve *

On Tue, Apr 22, 2014 at 10:57 AM, Dafna Ron <dron at redhat.com> wrote:

> This is the actual problem:
>
> bf025a73-eeeb-4ac5-b8a9-32afa4ae482e::DEBUG::2014-04-22
> 10:21:49,374::volume::1058::Storage.Misc.excCmd::(createVolume) FAILED:
> <err> = '/rhev/data-center/9497ef2c-8368-4c92-8d61-7f318a90748f/
> 95b9d922-4df7-4d3b-9bca-467e2fd9d573/images/4
> 66d9ae9-e46a-46f8-9f4b-964d8af0675b/87efa937-b31f-4bb1-aee1-0ee14a0dc6fb:
> error while creating qcow2: No such file or directory\n'; <rc> = 1
>
> from that you see the actual failure:
>
> bf025a73-eeeb-4ac5-b8a9-32afa4ae482e::ERROR::2014-04-22
> 10:21:49,392::volume::286::Storage.Volume::(clone) Volume.clone: can't
> clone: /rhev/data-center/9497ef2c-8368-4c92-8d61-7f318a90748f/
> 95b9d922-4df7-4d3b-9bca-467e2fd9d573/images/466d
> 9ae9-e46a-46f8-9f4b-964d8af0675b/1a67de4b-aa1c-4436-baca-ca55726d54d7 to
> /rhev/data-center/9497ef2c-8368-4c92-8d61-7f318a90748f/
> 95b9d922-4df7-4d3b-9bca-467e2fd9d573/images/466d9ae9-
> e46a-46f8-9f4b-964d8af0675b/87efa937-b31f-4bb1-aee1-0ee1
> 4a0dc6fb
> bf025a73-eeeb-4ac5-b8a9-32afa4ae482e::ERROR::2014-04-22
> 10:21:49,392::volume::508::Storage.Volume::(create) Unexpected error
> Traceback (most recent call last):
>   File "/usr/share/vdsm/storage/volume.py", line 466, in create
>     srcVolUUID, imgPath, volPath)
>   File "/usr/share/vdsm/storage/fileVolume.py", line 160, in _create
>     volParent.clone(imgPath, volUUID, volFormat, preallocate)
>   File "/usr/share/vdsm/storage/volume.py", line 287, in clone
>     raise se.CannotCloneVolume(self.volumePath, dst_path, str(e))
> CannotCloneVolume: Cannot clone volume: 'src=/rhev/data-center/
> 9497ef2c-8368-4c92-8d61-7f318a90748f/95b9d922-4df7-
> 4d3b-9bca-467e2fd9d573/images/466d9ae9-e46a-46f8-9f4b-
> 964d8af0675b/1a67de4b-aa1c-4436-baca-ca55726d54d7, dst=/rhev/data-cen
> ter/9497ef2c-8368-4c92-8d61-7f318a90748f/95b9d922-4df7-
> 4d3b-9bca-467e2fd9d573/images/466d9ae9-e46a-46f8-9f4b-
> 964d8af0675b/87efa937-b31f-4bb1-aee1-0ee14a0dc6fb: Error creating a new
> volume: (["Formatting \'/rhev/data-center/9497ef2c-8368-
> 4c92-8d61-7f318a90748f/95b9d922-4df7-4d3b-9bca-
> 467e2fd9d573/images/466d9ae9-e46a-46f8-9f4b-964d8af0675b/
> 87efa937-b31f-4bb1-aee1-0ee14a0dc6fb\', fmt=qcow2 size=21474836480
> backing_file=\'../466d9ae9-e46a-46f8-9f4b-964d8af0675b/1a67de4b-aa
> 1c-4436-baca-ca55726d54d7\' backing_fmt=\'qcow2\' encryption=off
> cluster_size=65536 "],)'
>
>
> do you have any alert in the webadmin to restart the vm?
>
> Dafna
>
>
> On 04/22/2014 03:31 PM, Steve Dainard wrote:
>
>> Sorry for the confusion.
>>
>> I attempted to take a live snapshot of a running VM. After that failed, I
>> migrated the VM to another host, and attempted the live snapshot again
>> without success, eliminating a single host as the cause of failure.
>>
>> Ovirt is 3.3.4, storage domain is gluster 3.4.2.1, OS is CentOS 6.5.
>>
>> Package versions:
>> libvirt-0.10.2-29.el6_5.5.x86_64
>> libvirt-lock-sanlock-0.10.2-29.el6_5.5.x86_64
>> qemu-img-rhev-0.12.1.2-2.415.el6.nux.3.x86_64
>> qemu-kvm-rhev-0.12.1.2-2.415.el6.nux.3.x86_64
>> qemu-kvm-rhev-tools-0.12.1.2-2.415.el6.nux.3.x86_64
>> vdsm-4.13.3-4.el6.x86_64
>> vdsm-gluster-4.13.3-4.el6.noarch
>>
>>
>> I made another live snapshot attempt at 10:21 EST today, full vdsm.log
>> attached, and a truncated engine.log.
>>
>> Thanks,
>>
>> *Steve
>> *
>>
>>
>>
>> On Tue, Apr 22, 2014 at 9:48 AM, Dafna Ron <dron at redhat.com <mailto:
>> dron at redhat.com>> wrote:
>>
>>     please explain the flow of what you are trying to do, are you
>>     trying to live migrate the disk (from one storage to another), are
>>     you trying to migrate the vm and after vm migration is finished
>>     you try to take a live snapshot of the vm? or are you trying to
>>     take a live snapshot of the vm during a vm migration from host1 to
>>     host2?
>>
>>     Please attach full vdsm logs from any host you are using (if you
>>     are trying to migrate the vm from host1 to host2) + please attach
>>     engine log.
>>
>>     Also, what is the vdsm, libvirt and qemu versions, what ovirt
>>     version are you using and what is the storage you are using?
>>
>>     Thanks,
>>
>>     Dafna
>>
>>
>>
>>
>>     On 04/22/2014 02:12 PM, Steve Dainard wrote:
>>
>>         I've attempted migrating the vm to another host and taking a
>>         snapshot, but I get this error:
>>
>>         6efd33f4-984c-4513-b5e6-fffdca2e983b::ERROR::2014-04-22
>>         01:09:37,296::volume::286::Storage.Volume::(clone)
>>         Volume.clone: can't clone:
>>         /rhev/data-center/9497ef2c-8368-4c92-8d61-7f318a90748f/
>> 95b9d922-4df7-4d3b-9bca-467e2fd9d573/images/466d9ae9-
>> e46a-46f8-9f4b-964d8af0675b/1a67de4b-aa1c-4436-baca-ca55726d54d7
>>         to
>>         /rhev/data-center/9497ef2c-8368-4c92-8d61-7f318a90748f/
>> 95b9d922-4df7-4d3b-9bca-467e2fd9d573/images/466d9ae9-
>> e46a-46f8-9f4b-964d8af0675b/b230596f-97bc-4532-ba57-5654fa9c6c51
>>
>>         A bit more of the vdsm log is attached.
>>
>>         Other vm's are snapshotting without issue.
>>
>>
>>
>>         Any help appreciated,
>>
>>         *Steve
>>         *
>>
>>
>>         _______________________________________________
>>         Users mailing list
>>         Users at ovirt.org <mailto:Users at ovirt.org>
>>
>>         http://lists.ovirt.org/mailman/listinfo/users
>>
>>
>>
>>     --     Dafna Ron
>>
>>
>>
>
> --
> Dafna Ron
>
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