[ovirt-users] Ovirt snapshot failing on one VM

Tue Apr 22 16:20:59 UTC 2014

Ominous..

23 snapshots. Is there an upper limit?

Offline snapshot fails as well. Both logs attached again (snapshot
attempted at 12:13 EST).

*Steve *

On Tue, Apr 22, 2014 at 11:20 AM, Dafna Ron <dron at redhat.com> wrote:

> are you able to take an offline snapshot? (while the vm is down)
> how many snapshots do you have on this vm?
>
>
> On 04/22/2014 04:19 PM, Steve Dainard wrote:
>
>> 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 <mailto:
>> 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> <mailto: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>
>>         <mailto:Users at ovirt.org <mailto:Users at ovirt.org>>
>>
>>
>>         http://lists.ovirt.org/mailman/listinfo/users
>>
>>
>>
>>             --     Dafna Ron
>>
>>
>>
>>
>>     --     Dafna Ron
>>
>>
>>
>
> --
> Dafna Ron
>
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