[Users] live snapshots ovirt 3.1

Tue Jun 19 08:03:24 UTC 2012

It looks like it is possible now to create live snapshots; that is: on a
running system. Creating fails however:

[root at ovirtm ovirt-engine]# tail -f engine.log | grep -i snapshot

2012-06-19 09:50:07,046 INFO 
[org.ovirt.engine.core.bll.CreateAllSnapshotsFromVmCommand]
(ajp--0.0.0.0-8009-7) [62433299] Lock Acquired to object EngineLock
[exclusiveLocks= key: 88321641-ae26-4460-ab3e-30daa5a7fc1a value: VM
2012-06-19 09:50:07,213 INFO 
[org.ovirt.engine.core.bll.CreateAllSnapshotsFromVmCommand]
(ajp--0.0.0.0-8009-7) [62433299] Running command:
CreateAllSnapshotsFromVmCommand internal: false. Entities affected : 
ID: 88321641-ae26-4460-ab3e-30daa5a7fc1a Type: VM
2012-06-19 09:50:07,260 INFO 
[org.ovirt.engine.core.bll.CreateAllSnapshotsFromVmCommand]
(ajp--0.0.0.0-8009-7) [62433299] Lock freed to object EngineLock
[exclusiveLocks= key: 88321641-ae26-4460-ab3e-30daa5a7fc1a value: VM
2012-06-19 09:50:07,265 INFO 
[org.ovirt.engine.core.bll.CreateSnapshotCommand] (ajp--0.0.0.0-8009-7)
[50705e1b] Running command: CreateSnapshotCommand internal: true.
Entities affected :  ID: 00000000-0000-0000-0000-000000000000 Type: Storage
2012-06-19 09:50:07,334 INFO 
[org.ovirt.engine.core.vdsbroker.irsbroker.CreateSnapshotVDSCommand]
(ajp--0.0.0.0-8009-7) [50705e1b] START,
CreateSnapshotVDSCommand(storagePoolId =
29decfa5-6776-45f2-be4c-5aa975e7decf, ignoreFailoverLimit = false,
compatabilityVersion = 3.1, storageDomainId =
573aae44-b52c-48c4-a588-6338baedced7, imageGroupId =
a5fe1b85-af8d-444b-be70-b0dfe9355593, imageSizeInBytes = 8589934592,
volumeFormat = COW, newImageId = cc9b435b-f9c0-4bd4-bb01-1d8f92016448,
newImageDescription = , imageId = 50d53c99-ffe7-4ae0-938b-c3f79720e13e,
sourceImageGroupId = a5fe1b85-af8d-444b-be70-b0dfe9355593), log id: 7b7a0fb2
2012-06-19 09:50:07,336 INFO 
[org.ovirt.engine.core.vdsbroker.irsbroker.CreateSnapshotVDSCommand]
(ajp--0.0.0.0-8009-7) [50705e1b] --
CreateSnapshotVDSCommand::ExecuteIrsBrokerCommand: calling
'createVolume' with two new parameters: description and UUID
2012-06-19 09:50:07,336 INFO 
[org.ovirt.engine.core.vdsbroker.irsbroker.CreateSnapshotVDSCommand]
(ajp--0.0.0.0-8009-7) [50705e1b] -- createVolume parameters:
2012-06-19 09:50:07,529 INFO 
[org.ovirt.engine.core.vdsbroker.irsbroker.CreateSnapshotVDSCommand]
(ajp--0.0.0.0-8009-7) [50705e1b] FINISH, CreateSnapshotVDSCommand,
return: cc9b435b-f9c0-4bd4-bb01-1d8f92016448, log id: 7b7a0fb2
2012-06-19 09:50:07,572 INFO 
[org.ovirt.engine.core.bll.AsyncTaskManager] (ajp--0.0.0.0-8009-7)
[50705e1b] AsyncTaskManager::AddTaskToManager: Adding task
2dcdc253-87f8-47cf-ba9f-80deaf131ce4 (Parent Command
CreateAllSnapshotsFromVm, Parameters Type
org.ovirt.engine.core.common.asynctasks.AsyncTaskParameters), polling
hasn't started yet..
2012-06-19 09:50:07,630 INFO 
[org.ovirt.engine.core.bll.EntityMultiAsyncTasks] (ajp--0.0.0.0-8009-7)
[50705e1b] EntityMultiAsyncTasks::StartPollingTask: Current Action Type
for entity 88321641-ae26-4460-ab3e-30daa5a7fc1a is
CreateAllSnapshotsFromVm (determined by task
2dcdc253-87f8-47cf-ba9f-80deaf131ce4)
2012-06-19 09:50:13,628 INFO  [org.ovirt.engine.core.bll.SPMAsyncTask]
(QuartzScheduler_Worker-76) SPMAsyncTask::PollTask: Polling task
2dcdc253-87f8-47cf-ba9f-80deaf131ce4 (Parent Command
CreateAllSnapshotsFromVm, Parameters Type
org.ovirt.engine.core.common.asynctasks.AsyncTaskParameters) returned
status finished, result 'success'.
2012-06-19 09:50:13,713 INFO  [org.ovirt.engine.core.bll.SPMAsyncTask]
(QuartzScheduler_Worker-76) BaseAsyncTask::OnTaskEndSuccess: Task
2dcdc253-87f8-47cf-ba9f-80deaf131ce4 (Parent Command
CreateAllSnapshotsFromVm, Parameters Type
org.ovirt.engine.core.common.asynctasks.AsyncTaskParameters) ended
successfully.
2012-06-19 09:50:13,717 INFO 
[org.ovirt.engine.core.bll.EntityAsyncTask] (QuartzScheduler_Worker-76)
EntityAsyncTask::EndAction: Ending action for 1 tasks (entity ID:
88321641-ae26-4460-ab3e-30daa5a7fc1a): calling EndAction for action type
CreateAllSnapshotsFromVm.
2012-06-19 09:50:13,719 INFO 
[org.ovirt.engine.core.bll.EntityAsyncTask] (pool-3-thread-48)
EntityAsyncTask::EndCommandAction [within thread]context: Attempting to
EndAction CreateAllSnapshotsFromVm
2012-06-19 09:50:13,746 INFO 
[org.ovirt.engine.core.bll.CreateAllSnapshotsFromVmCommand]
(pool-3-thread-48) [62433299] Ending command successfully:
org.ovirt.engine.core.bll.CreateAllSnapshotsFromVmCommand
2012-06-19 09:50:13,758 INFO 
[org.ovirt.engine.core.vdsbroker.vdsbroker.SnapshotVDSCommand]
(pool-3-thread-48) [62433299] START, SnapshotVDSCommand(vdsId =
c7bfb9f6-b926-11e1-ba3b-d7d59418f024,
vmId=88321641-ae26-4460-ab3e-30daa5a7fc1a), log id: 2e483a2e
2012-06-19 09:50:13,832 ERROR
[org.ovirt.engine.core.vdsbroker.vdsbroker.BrokerCommandBase]
(pool-3-thread-48) [62433299] Failed in SnapshotVDS method
2012-06-19 09:50:13,833 ERROR
[org.ovirt.engine.core.vdsbroker.vdsbroker.BrokerCommandBase]
(pool-3-thread-48) [62433299] Error code SNAPSHOT_FAILED and error
message VDSGenericException: VDSErrorException: Failed to SnapshotVDS,
error = Snapshot failed
2012-06-19 09:50:13,834 INFO 
[org.ovirt.engine.core.vdsbroker.vdsbroker.BrokerCommandBase]
(pool-3-thread-48) [62433299] Command
org.ovirt.engine.core.vdsbroker.vdsbroker.SnapshotVDSCommand return value
mMessage                      Snapshot failed
2012-06-19 09:50:13,836 ERROR
[org.ovirt.engine.core.vdsbroker.VDSCommandBase] (pool-3-thread-48)
[62433299] Command SnapshotVDS execution failed. Exception:
VDSErrorException: VDSGenericException: VDSErrorException: Failed to
SnapshotVDS, error = Snapshot failed
2012-06-19 09:50:13,837 INFO 
[org.ovirt.engine.core.vdsbroker.vdsbroker.SnapshotVDSCommand]
(pool-3-thread-48) [62433299] FINISH, SnapshotVDSCommand, log id: 2e483a2e
2012-06-19 09:50:13,837 ERROR
[org.ovirt.engine.core.bll.CreateAllSnapshotsFromVmCommand]
(pool-3-thread-48) [62433299] Wasnt able to live snpashot due to error:
VdcBLLException: VdcBLLException:
org.ovirt.engine.core.vdsbroker.vdsbroker.VDSErrorException:
VDSGenericException: VDSErrorException: Failed to SnapshotVDS, error =
Snapshot failed, rolling back.
2012-06-19 09:50:13,840 ERROR
[org.ovirt.engine.core.bll.CreateSnapshotCommand] (pool-3-thread-48)
[50705e1b] Ending command with failure:
org.ovirt.engine.core.bll.CreateSnapshotCommand
2012-06-19 09:50:14,188 INFO 
[org.ovirt.engine.core.bll.EntityAsyncTask] (pool-3-thread-48)
EntityAsyncTask::HandleEndActionResult [within thread]: EndAction for
action type CreateAllSnapshotsFromVm completed, handling the result.
2012-06-19 09:50:14,189 INFO 
[org.ovirt.engine.core.bll.EntityAsyncTask] (pool-3-thread-48)
EntityAsyncTask::HandleEndActionResult [within thread]: EndAction for
action type CreateAllSnapshotsFromVm hasn't succeeded, clearing tasks.

Is live snapshots a new Ovirt feature? Taking a snapshot on a
non-running host is fine.

Winfried