[ovirt-users] Ghost Snapshot Disk

Enrico enrico.becchetti at pg.infn.it
Thu Mar 8 16:08:58 UTC 2018


Hi All,
I've a similar question , I can't remove a snapshot. oVirt version is 
the last stable 4.2.1.7
with engine running in non hosted mode. Before remove snapshot I've 
shutdown vm.
These are logs from engine:

2018-03-08 16:57:47,153+01 INFO 
[org.ovirt.engine.core.bll.ProcessDownVmCommand] 
(EE-ManagedThreadFactory-engine-Thread-40253) [711eba7d] Running 
command: ProcessDownVmCommand internal: true.
2018-03-08 16:57:55,589+01 INFO 
[org.ovirt.engine.core.vdsbroker.monitoring.VmsStatisticsFetcher] 
(EE-ManagedThreadFactory-engineScheduled-Thread-71) [] Fetched 8 VMs 
from VDS '85bbf811-1069-4e67-ba86-e50dec9f5da9'
2018-03-08 16:59:00,561+01 INFO 
[org.ovirt.engine.core.bll.snapshots.RemoveDiskSnapshotsCommand] 
(default task-31) [ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] Lock Acquired 
to object 
'EngineLock:{exclusiveLocks='[281a869f-8541-49cf-894b-f583bd26083d=DISK]', 
sharedLocks=''}'
2018-03-08 16:59:00,599+01 INFO 
[org.ovirt.engine.core.bll.snapshots.RemoveDiskSnapshotsCommand] 
(EE-ManagedThreadFactory-engine-Thread-40284) 
[ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] Running command: 
RemoveDiskSnapshotsCommand internal: false. Entities affected : ID: 
01f9b5f2-9e48-4c24-80e5-dca7f1d4d128 Type: VMAction group 
MANIPULATE_VM_SNAPSHOTS with role type USER
2018-03-08 16:59:00,613+01 INFO 
[org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] 
(EE-ManagedThreadFactory-engine-Thread-40284) 
[ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] EVENT_ID: 
USER_REMOVE_DISK_SNAPSHOT(373), Disk 'SOL_Disk1' from Snapshot(s) 'PHP 
5.6.29' of VM 'SOL-DEV' deletion was initiated by admin at internal-authz.
2018-03-08 16:59:00,615+01 INFO 
[org.ovirt.engine.core.bll.snapshots.RemoveDiskSnapshotsCommand] 
(EE-ManagedThreadFactory-engine-Thread-40284) 
[ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] Lock freed to object 
'EngineLock:{exclusiveLocks='[281a869f-8541-49cf-894b-f583bd26083d=DISK]', 
sharedLocks=''}'
2018-03-08 16:59:00,993+01 INFO 
[org.ovirt.engine.core.bll.snapshots.RemoveDiskSnapshotsCommand] 
(EE-ManagedThreadFactory-engineScheduled-Thread-25) 
[ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] Starting child command 1 of 1, 
image '64e8f28d-6c00-41d8-9f60-26a87d51cb8c'
2018-03-08 16:59:01,026+01 INFO 
[org.ovirt.engine.core.bll.snapshots.ColdMergeSnapshotSingleDiskCommand] 
(EE-ManagedThreadFactory-commandCoordinator-Thread-7) 
[ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] Running command: 
ColdMergeSnapshotSingleDiskCommand internal: true. Entities affected :  
ID: 00000000-0000-0000-0000-000000000000 Type: Storage
2018-03-08 16:59:02,026+01 INFO 
[org.ovirt.engine.core.bll.snapshots.ColdMergeSnapshotSingleDiskCommand] 
(EE-ManagedThreadFactory-engineScheduled-Thread-98) 
[ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] Command 
'ColdMergeSnapshotSingleDisk' id '2bbd81c3-9fa1-4e48-ab69-5588e1367539' 
executing step 'PREPARE_MERGE'
2018-03-08 16:59:02,048+01 INFO 
[org.ovirt.engine.core.bll.storage.disk.image.PrepareMergeCommand] 
(EE-ManagedThreadFactory-engineScheduled-Thread-98) 
[ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] Running command: 
PrepareMergeCommand internal: true. Entities affected :  ID: 
00000000-0000-0000-0000-000000000000 Type: Storage
2018-03-08 16:59:02,049+01 INFO 
[org.ovirt.engine.core.vdsbroker.irsbroker.PrepareMergeVDSCommand] 
(EE-ManagedThreadFactory-engineScheduled-Thread-98) 
[ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] START, PrepareMergeVDSCommand( 
SPMColdMergeVDSCommandParameters:{storagePoolId='18d57688-6ed4-43b8-bd7c-0665b55950b7', 
ignoreFailoverLimit='false'}), log id: 447f2b58
2018-03-08 16:59:02,178+01 INFO 
[org.ovirt.engine.core.vdsbroker.irsbroker.PrepareMergeVDSCommand] 
(EE-ManagedThreadFactory-engineScheduled-Thread-98) 
[ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] FINISH, PrepareMergeVDSCommand, 
log id: 447f2b58
2018-03-08 16:59:02,221+01 INFO 
[org.ovirt.engine.core.bll.tasks.CommandAsyncTask] 
(EE-ManagedThreadFactory-engineScheduled-Thread-98) 
[ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] CommandAsyncTask::Adding 
CommandMultiAsyncTasks object for command 
'b5983000-d637-47da-8aa2-fb8fec50b480'
2018-03-08 16:59:02,221+01 INFO 
[org.ovirt.engine.core.bll.CommandMultiAsyncTasks] 
(EE-ManagedThreadFactory-engineScheduled-Thread-98) 
[ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] 
CommandMultiAsyncTasks::attachTask: Attaching task 
'0f762196-21ed-4b70-995d-729f3ed72425' to command 
'b5983000-d637-47da-8aa2-fb8fec50b480'.
2018-03-08 16:59:02,235+01 INFO 
[org.ovirt.engine.core.bll.tasks.AsyncTaskManager] 
(EE-ManagedThreadFactory-engineScheduled-Thread-98) 
[ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] Adding task 
'0f762196-21ed-4b70-995d-729f3ed72425' (Parent Command 'PrepareMerge', 
Parameters Type 
'org.ovirt.engine.core.common.asynctasks.AsyncTaskParameters'), polling 
hasn't started yet..
2018-03-08 16:59:02,241+01 INFO 
[org.ovirt.engine.core.bll.tasks.SPMAsyncTask] 
(EE-ManagedThreadFactory-engineScheduled-Thread-98) 
[ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] BaseAsyncTask::startPollingTask: 
Starting to poll task '0f762196-21ed-4b70-995d-729f3ed72425'.
2018-03-08 16:59:03,262+01 INFO 
[org.ovirt.engine.core.bll.SerialChildCommandsExecutionCallback] 
(EE-ManagedThreadFactory-engineScheduled-Thread-79) 
[ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] Command 'RemoveDiskSnapshots' 
(id: '8f600a64-5ec5-4f81-98de-2ced76193aa4') waiting on child command 
id: '2bbd81c3-9fa1-4e48-ab69-5588e1367539' 
type:'ColdMergeSnapshotSingleDisk' to complete
2018-03-08 16:59:04,271+01 INFO 
[org.ovirt.engine.core.bll.SerialChildCommandsExecutionCallback] 
(EE-ManagedThreadFactory-engineScheduled-Thread-67) 
[ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] Command 
'ColdMergeSnapshotSingleDisk' (id: 
'2bbd81c3-9fa1-4e48-ab69-5588e1367539') waiting on child command id: 
'b5983000-d637-47da-8aa2-fb8fec50b480' type:'PrepareMerge' to complete
2018-03-08 16:59:07,322+01 INFO 
[org.ovirt.engine.core.bll.SerialChildCommandsExecutionCallback] 
(EE-ManagedThreadFactory-engineScheduled-Thread-86) 
[ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] Command 'RemoveDiskSnapshots' 
(id: '8f600a64-5ec5-4f81-98de-2ced76193aa4') waiting on child command 
id: '2bbd81c3-9fa1-4e48-ab69-5588e1367539' 
type:'ColdMergeSnapshotSingleDisk' to complete
2018-03-08 16:59:08,331+01 INFO 
[org.ovirt.engine.core.bll.SerialChildCommandsExecutionCallback] 
(EE-ManagedThreadFactory-engineScheduled-Thread-100) 
[ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] Command 
'ColdMergeSnapshotSingleDisk' (id: 
'2bbd81c3-9fa1-4e48-ab69-5588e1367539') waiting on child command id: 
'b5983000-d637-47da-8aa2-fb8fec50b480' type:'PrepareMerge' to complete
2018-03-08 16:59:09,986+01 INFO 
[org.ovirt.engine.core.bll.tasks.AsyncTaskManager] 
(EE-ManagedThreadFactory-engineScheduled-Thread-38) [] Polling and 
updating Async Tasks: 1 tasks, 1 tasks to poll now
2018-03-08 16:59:09,998+01 ERROR 
[org.ovirt.engine.core.vdsbroker.vdsbroker.HSMGetAllTasksStatusesVDSCommand] 
(EE-ManagedThreadFactory-engineScheduled-Thread-38) [] Failed in 
'HSMGetAllTasksStatusesVDS' method
2018-03-08 16:59:10,000+01 ERROR 
[org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] 
(EE-ManagedThreadFactory-engineScheduled-Thread-38) [] EVENT_ID: 
VDS_BROKER_COMMAND_FAILURE(10,802), VDSM infn-vm05.management command 
HSMGetAllTasksStatusesVDS failed: Volume does not exist: 
('64e8f28d-6c00-41d8-9f60-26a87d51cb8c',)
2018-03-08 16:59:10,000+01 INFO 
[org.ovirt.engine.core.bll.tasks.SPMAsyncTask] 
(EE-ManagedThreadFactory-engineScheduled-Thread-38) [] 
SPMAsyncTask::PollTask: Polling task 
'0f762196-21ed-4b70-995d-729f3ed72425' (Parent Command 'PrepareMerge', 
Parameters Type 
'org.ovirt.engine.core.common.asynctasks.AsyncTaskParameters') returned 
status 'finished', result 'cleanSuccess'.
2018-03-08 16:59:10,000+01 ERROR 
[org.ovirt.engine.core.bll.tasks.SPMAsyncTask] 
(EE-ManagedThreadFactory-engineScheduled-Thread-38) [] 
BaseAsyncTask::logEndTaskFailure: Task 
'0f762196-21ed-4b70-995d-729f3ed72425' (Parent Command 'PrepareMerge', 
Parameters Type 
'org.ovirt.engine.core.common.asynctasks.AsyncTaskParameters') ended 
with failure:
-- Result: 'cleanSuccess'
-- Message: 'VDSGenericException: VDSErrorException: Failed to 
HSMGetAllTasksStatusesVDS, error = Volume does not exist: 
('64e8f28d-6c00-41d8-9f60-26a87d51cb8c',), code = 201',
-- Exception: 'VDSGenericException: VDSErrorException: Failed to 
HSMGetAllTasksStatusesVDS, error = Volume does not exist: 
('64e8f28d-6c00-41d8-9f60-26a87d51cb8c',), code = 201'
2018-03-08 16:59:10,001+01 INFO 
[org.ovirt.engine.core.bll.tasks.CommandAsyncTask] 
(EE-ManagedThreadFactory-engineScheduled-Thread-38) [] 
CommandAsyncTask::endActionIfNecessary: All tasks of command 
'b5983000-d637-47da-8aa2-fb8fec50b480' has ended -> executing 'endAction'
2018-03-08 16:59:10,001+01 INFO 
[org.ovirt.engine.core.bll.tasks.CommandAsyncTask] 
(EE-ManagedThreadFactory-engineScheduled-Thread-38) [] 
CommandAsyncTask::endAction: Ending action for '1' tasks (command ID: 
'b5983000-d637-47da-8aa2-fb8fec50b480'): calling endAction '.
2018-03-08 16:59:10,001+01 INFO 
[org.ovirt.engine.core.bll.tasks.CommandAsyncTask] 
(EE-ManagedThreadFactory-engine-Thread-40287) [] 
CommandAsyncTask::endCommandAction [within thread] context: Attempting 
to endAction 'PrepareMerge',
2018-03-08 16:59:10,005+01 ERROR 
[org.ovirt.engine.core.bll.storage.disk.image.PrepareMergeCommand] 
(EE-ManagedThreadFactory-engine-Thread-40287) 
[ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] Ending command 
'org.ovirt.engine.core.bll.storage.disk.image.PrepareMergeCommand' with 
failure.
2018-03-08 16:59:10,013+01 INFO 
[org.ovirt.engine.core.bll.tasks.CommandAsyncTask] 
(EE-ManagedThreadFactory-engine-Thread-40287) 
[ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] 
CommandAsyncTask::HandleEndActionResult [within thread]: endAction for 
action type 'PrepareMerge' completed, handling the result.
2018-03-08 16:59:10,013+01 INFO 
[org.ovirt.engine.core.bll.tasks.CommandAsyncTask] 
(EE-ManagedThreadFactory-engine-Thread-40287) 
[ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] 
CommandAsyncTask::HandleEndActionResult [within thread]: endAction for 
action type 'PrepareMerge' succeeded, clearing tasks.
2018-03-08 16:59:10,014+01 INFO 
[org.ovirt.engine.core.bll.tasks.SPMAsyncTask] 
(EE-ManagedThreadFactory-engine-Thread-40287) 
[ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] SPMAsyncTask::ClearAsyncTask: 
Attempting to clear task '0f762196-21ed-4b70-995d-729f3ed72425'
2018-03-08 16:59:10,016+01 INFO 
[org.ovirt.engine.core.vdsbroker.irsbroker.SPMClearTaskVDSCommand] 
(EE-ManagedThreadFactory-engine-Thread-40287) 
[ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] START, SPMClearTaskVDSCommand( 
SPMTaskGuidBaseVDSCommandParameters:{storagePoolId='18d57688-6ed4-43b8-bd7c-0665b55950b7', 
ignoreFailoverLimit='false', 
taskId='0f762196-21ed-4b70-995d-729f3ed72425'}), log id: 5a0c3cc1
2018-03-08 16:59:10,017+01 INFO 
[org.ovirt.engine.core.vdsbroker.vdsbroker.HSMClearTaskVDSCommand] 
(EE-ManagedThreadFactory-engine-Thread-40287) 
[ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] START, 
HSMClearTaskVDSCommand(HostName = infn-vm05.management, 
HSMTaskGuidBaseVDSCommandParameters:{hostId='751f3e99-b95e-4c31-bc38-77f5661a0bdc', 
taskId='0f762196-21ed-4b70-995d-729f3ed72425'}), log id: 608b0bf
2018-03-08 16:59:10,033+01 INFO 
[org.ovirt.engine.core.vdsbroker.vdsbroker.HSMClearTaskVDSCommand] 
(EE-ManagedThreadFactory-engine-Thread-40287) 
[ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] FINISH, HSMClearTaskVDSCommand, 
log id: 608b0bf
2018-03-08 16:59:10,033+01 INFO 
[org.ovirt.engine.core.vdsbroker.irsbroker.SPMClearTaskVDSCommand] 
(EE-ManagedThreadFactory-engine-Thread-40287) 
[ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] FINISH, SPMClearTaskVDSCommand, 
log id: 5a0c3cc1
2018-03-08 16:59:10,035+01 INFO 
[org.ovirt.engine.core.bll.tasks.SPMAsyncTask] 
(EE-ManagedThreadFactory-engine-Thread-40287) 
[ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] BaseAsyncTask::removeTaskFromDB: 
Removed task '0f762196-21ed-4b70-995d-729f3ed72425' from DataBase
2018-03-08 16:59:10,035+01 INFO 
[org.ovirt.engine.core.bll.tasks.CommandAsyncTask] 
(EE-ManagedThreadFactory-engine-Thread-40287) 
[ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] 
CommandAsyncTask::HandleEndActionResult [within thread]: Removing 
CommandMultiAsyncTasks object for entity 
'b5983000-d637-47da-8aa2-fb8fec50b480'
2018-03-08 16:59:15,375+01 INFO 
[org.ovirt.engine.core.bll.SerialChildCommandsExecutionCallback] 
(EE-ManagedThreadFactory-engineScheduled-Thread-57) 
[ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] Command 'RemoveDiskSnapshots' 
(id: '8f600a64-5ec5-4f81-98de-2ced76193aa4') waiting on child command 
id: '2bbd81c3-9fa1-4e48-ab69-5588e1367539' 
type:'ColdMergeSnapshotSingleDisk' to complete
2018-03-08 16:59:16,384+01 ERROR 
[org.ovirt.engine.core.bll.snapshots.ColdMergeSnapshotSingleDiskCommand] 
(EE-ManagedThreadFactory-engineScheduled-Thread-27) 
[ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] Command 
'ColdMergeSnapshotSingleDisk' id '2bbd81c3-9fa1-4e48-ab69-5588e1367539' 
failed executing step 'PREPARE_MERGE'
2018-03-08 16:59:16,384+01 INFO 
[org.ovirt.engine.core.bll.SerialChildCommandsExecutionCallback] 
(EE-ManagedThreadFactory-engineScheduled-Thread-27) 
[ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] Command 
'ColdMergeSnapshotSingleDisk' id: '2bbd81c3-9fa1-4e48-ab69-5588e1367539' 
child commands '[b5983000-d637-47da-8aa2-fb8fec50b480]' executions were 
completed, status 'FAILED'
2018-03-08 16:59:17,398+01 ERROR 
[org.ovirt.engine.core.bll.snapshots.ColdMergeSnapshotSingleDiskCommand] 
(EE-ManagedThreadFactory-engineScheduled-Thread-77) 
[ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] Ending command 
'org.ovirt.engine.core.bll.snapshots.ColdMergeSnapshotSingleDiskCommand' 
with failure.
2018-03-08 16:59:17,409+01 INFO 
[org.ovirt.engine.core.bll.SerialChildCommandsExecutionCallback] 
(EE-ManagedThreadFactory-engineScheduled-Thread-77) 
[ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] Command 'RemoveDiskSnapshots' id: 
'8f600a64-5ec5-4f81-98de-2ced76193aa4' child commands 
'[2bbd81c3-9fa1-4e48-ab69-5588e1367539]' executions were completed, 
status 'FAILED'
2018-03-08 16:59:18,424+01 ERROR 
[org.ovirt.engine.core.bll.snapshots.RemoveDiskSnapshotsCommand] 
(EE-ManagedThreadFactory-engineScheduled-Thread-36) 
[ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] Ending command 
'org.ovirt.engine.core.bll.snapshots.RemoveDiskSnapshotsCommand' with 
failure.
2018-03-08 16:59:18,460+01 ERROR 
[org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] 
(EE-ManagedThreadFactory-engineScheduled-Thread-36) 
[ceb64d67-ce9e-41a8-93dd-ffa512bfd18e] EVENT_ID: 
USER_REMOVE_DISK_SNAPSHOT_FINISHED_FAILURE(376), Failed to complete 
deletion of Disk 'SOL_Disk1' from snapshot(s) 'PHP 5.6.29' of VM 
'SOL-DEV' (User: admin at internal-authz).
2018-03-08 17:00:18,145+01 INFO 
[org.ovirt.engine.core.bll.tasks.AsyncTaskManager] 
(EE-ManagedThreadFactory-engineScheduled-Thread-46) [] Setting new tasks 
map. The map contains now 0 tasks
2018-03-08 17:00:18,145+01 INFO 
[org.ovirt.engine.core.bll.tasks.AsyncTaskManager] 
(EE-ManagedThreadFactory-engineScheduled-Thread-46) [] Cleared all tasks 
of pool '18d57688-6ed4-43b8-bd7c-0665b55950b7'.

Thanks a lot
Best Regards
Enrico


Il 08/03/18 16:30, Shani Leviim ha scritto:
> Hi Lionel,
>
> Can you please share once again your engine log (or at least the 
> relevant part where that error message occurred)?
>
> *Regards,
> *
> *Shani Leviim
> *
>
> On Thu, Mar 8, 2018 at 1:56 PM, Lionel Caignec <caignec at cines.fr 
> <mailto:caignec at cines.fr>> wrote:
>
>     Hi,
>
>     i finished to move my data, but now when i want to remove my old
>     disk i get stuck to this error :
>     "Cannot detach Virtual Machine Disk. The disk is already
>     configured in a snapshot. In order to detach it, remove the disk's
>     snapshots".
>     But like i said before there is no snapshot anymore.
>     So what can i do? Delete manually inside database? So where?
>     Delete manually lvm volume, so how can i find the good one?
>
>     Please help ;).
>
>     Lionel
>
>     ----- Mail original -----
>     De: "Lionel Caignec" <caignec at cines.fr <mailto:caignec at cines.fr>>
>     À: "Shani Leviim" <sleviim at redhat.com <mailto:sleviim at redhat.com>>
>     Cc: "users" <users at ovirt.org <mailto:users at ovirt.org>>
>     Envoyé: Mardi 6 Mars 2018 08:22:30
>     Objet: Re: [ovirt-users] Ghost Snapshot Disk
>
>     Hi,
>
>     ok thank you for information (sorry for late response).
>
>     I will do that.
>
>     ----- Mail original -----
>     De: "Shani Leviim" <sleviim at redhat.com <mailto:sleviim at redhat.com>>
>     À: "Lionel Caignec" <caignec at cines.fr <mailto:caignec at cines.fr>>
>     Cc: "users" <users at ovirt.org <mailto:users at ovirt.org>>
>     Envoyé: Mardi 27 Février 2018 14:19:45
>     Objet: Re: [ovirt-users] Ghost Snapshot Disk
>
>     Hi Lionel,
>
>     Sorry for the delay in replying you.
>
>     If it's possible from your side, syncing the data and destroying
>     old disk
>     sounds about right.
>
>     In addition, it seems like you're having this bug:
>     https://bugzilla.redhat.com/show_bug.cgi?id=1509629
>     <https://bugzilla.redhat.com/show_bug.cgi?id=1509629>
>     And it was fixed for version 4.1.9. and above.
>
>
>
>     *Regards,*
>
>     *Shani Leviim*
>
>     On Mon, Feb 26, 2018 at 4:18 PM, Lionel Caignec <caignec at cines.fr
>     <mailto:caignec at cines.fr>> wrote:
>
>     > Ok so i reply myself,
>     >
>     > Version is 4.1.7.6-1
>     >
>     > I just delete manually a snapshot previously created. But this
>     is an io
>     > intensive vm, whit big disk (2,5To, and 5To).
>     >
>     > For the log, i cannot paste all my log on public list security
>     reason, i
>     > will send you full in private.
>     > Here is an extract relevant to my error
>     > engine.log-20180210:2018-02-09 23:00:03,200+01 INFO
>     >
>     [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector]
>     > (default task-312) [44402a8c-3196-43f0-ba33-307ea78e6f49] EVENT_ID:
>     > USER_CREATE_SNAPSHOT(45), Correlation ID:
>     44402a8c-3196-43f0-ba33-307ea78e6f49,
>     > Job ID: 030cd310-fec9-4a89-8c3f-7888504fe973, Call Stack: null,
>     Custom
>     > ID: null, Custom Event ID: -1, Message: Snapshot
>     'AUTO_7D_zz_nil_20180209_220002'
>     > creation for VM 'zz_nil' was initiated by snap_user at internal.
>     > engine.log-20180210:2018-02-09 23:01:06,578+01 INFO
>     >
>     [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector]
>     > (DefaultQuartzScheduler5) [] EVENT_ID:
>     USER_CREATE_SNAPSHOT_FINISHED_SUCCESS(68),
>     > Correlation ID: 44402a8c-3196-43f0-ba33-307ea78e6f49, Job ID:
>     > 030cd310-fec9-4a89-8c3f-7888504fe973, Call Stack: null, Custom
>     ID: null,
>     > Custom Event ID: -1, Message: Snapshot
>     'AUTO_7D_zz_nil_20180209_220002'
>     > creation for VM 'zz_nil' has been completed.
>     > engine.log-20180220:2018-02-19 17:01:23,800+01 INFO
>     >
>     [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector]
>     > (default task-113) [] EVENT_ID: USER_REMOVE_SNAPSHOT(342),
>     Correlation ID:
>     > 06a9efa4-1b80-4021-bf3e-41ecebe58a88, Job ID:
>     c9a918a7-b00c-43cf-b6de-3659ac0765da,
>     > Call Stack: null, Custom ID: null, Custom Event ID: -1, Message:
>     Snapshot
>     > 'AUTO_7D_zz_nil_20180209_220002' deletion for VM 'zz_nil' was
>     initiated
>     > by acaignec at ldap-cines-authz.
>     > engine.log-20180221:2018-02-20 22:24:45,174+01 ERROR
>     >
>     [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector]
>     > (DefaultQuartzScheduler6) [06a9efa4-1b80-4021-bf3e-41ecebe58a88]
>     > EVENT_ID: USER_REMOVE_SNAPSHOT_FINISHED_FAILURE(357),
>     Correlation ID:
>     > 06a9efa4-1b80-4021-bf3e-41ecebe58a88, Job ID:
>     c9a918a7-b00c-43cf-b6de-3659ac0765da,
>     > Call Stack: null, Custom ID: null, Custom Event ID: -1, Message:
>     Failed to
>     > delete snapshot 'AUTO_7D_zz_nil_20180209_220002' for VM 'zz_nil'.
>     >  2018-02-20 22:24:46,266+01 INFO
>     [org.ovirt.engine.core.bll.tasks.SPMAsyncTask]
>     > (DefaultQuartzScheduler3) [516079c3] SPMAsyncTask::PollTask:
>     Polling task
>     > '34137342-4f30-476d-b16c-1cb7e0ea0ac0' (Parent Command
>     'DestroyImage',
>     > Parameters Type
>     'org.ovirt.engine.core.common.asynctasks.AsyncTaskParameters')
>     > returned status 'finished', result 'success'.
>     > 2018-02-20 22:24:46,267+01 INFO
>     [org.ovirt.engine.core.bll.tasks.SPMAsyncTask]
>     > (DefaultQuartzScheduler3) [516079c3]
>     BaseAsyncTask::onTaskEndSuccess:
>     > Task '34137342-4f30-476d-b16c-1cb7e0ea0ac0' (Parent Command
>     > 'DestroyImage', Parameters Type
>     'org.ovirt.engine.core.common.asynctasks.AsyncTaskParameters')
>     > ended successfully.
>     > 2018-02-20 22:24:46,268+01 INFO
>     [org.ovirt.engine.core.bll.tasks.CommandAsyncTask]
>     > (DefaultQuartzScheduler3) [516079c3]
>     CommandAsyncTask::endActionIfNecessary:
>     > All tasks of command 'fe8c91f2-386b-4b3f-bbf3-aeda8e9244c6' has
>     ended ->
>     > executing 'endAction'
>     > 2018-02-20 22:24:46,268+01 INFO
>     [org.ovirt.engine.core.bll.tasks.CommandAsyncTask]
>     > (DefaultQuartzScheduler3) [516079c3]
>     CommandAsyncTask::endAction: Ending
>     > action for '1' tasks (command ID:
>     'fe8c91f2-386b-4b3f-bbf3-aeda8e9244c6'):
>     > calling endAction '.
>     > 2018-02-20 22:24:46,268+01 INFO
>     [org.ovirt.engine.core.bll.tasks.CommandAsyncTask]
>     > (org.ovirt.thread.pool-6-thread-20) [516079c3]
>     CommandAsyncTask::endCommandAction
>     > [within thread] context: Attempting to endAction 'DestroyImage',
>     > 2018-02-20 22:24:46,269+01 ERROR
>     [org.ovirt.engine.core.bll.tasks.CommandAsyncTask]
>     > (org.ovirt.thread.pool-6-thread-20) [516079c3] [within thread]:
>     endAction
>     > for action type DestroyImage threw an exception.:
>     > java.lang.NullPointerException
>     >         at org.ovirt.engine.core.bll.tasks.CoCoAsyncTaskHelper.
>     > endAction(CoCoAsyncTaskHelper.java:335) [bll.jar:]
>     >         at org.ovirt.engine.core.bll.tasks.CommandCoordinatorImpl.
>     > endAction(CommandCoordinatorImpl.java:340) [bll.jar:]
>     >         at org.ovirt.engine.core.bll.tasks.CommandAsyncTask.
>     > endCommandAction(CommandAsyncTask.java:154) [bll.jar:]
>     >         at org.ovirt.engine.core.bll.tasks.CommandAsyncTask.lambda$
>     > endActionIfNecessary$0(CommandAsyncTask.java:106) [bll.jar:]
>     >         at org.ovirt.engine.core.utils.threadpool.ThreadPoolUtil$
>     > InternalWrapperRunnable.run(ThreadPoolUtil.java:84) [utils.jar:]
>     >         at
>     java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
>     > [rt.jar:1.8.0_161]
>     >         at java.util.concurrent.FutureTask.run(FutureTask.java:266)
>     > [rt.jar:1.8.0_161]
>     >         at
>     java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
>     > [rt.jar:1.8.0_161]
>     >         at
>     java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
>     > [rt.jar:1.8.0_161]
>     >         at java.lang.Thread.run(Thread.java:748) [rt.jar:1.8.0_161]
>     >
>     > ----- Mail original -----
>     > De: "Shani Leviim" <sleviim at redhat.com <mailto:sleviim at redhat.com>>
>     > À: "Lionel Caignec" <caignec at cines.fr <mailto:caignec at cines.fr>>
>     > Envoyé: Lundi 26 Février 2018 14:42:38
>     > Objet: Re: [ovirt-users] Ghost Snapshot Disk
>     >
>     > Yes, please.
>     > Can you detail a bit more regarding the actions you've done?
>     >
>     > I'm assuming that since the snapshot had no description, trying
>     to operate
>     > it caused the nullPointerException you've got.
>     > But I want to examine what was the cause for that.
>     >
>     > Also, can you please answer back to the list?
>     >
>     >
>     >
>     > *Regards,*
>     >
>     > *Shani Leviim*
>     >
>     > On Mon, Feb 26, 2018 at 3:37 PM, Lionel Caignec
>     <caignec at cines.fr <mailto:caignec at cines.fr>> wrote:
>     >
>     > > Version is 4.1.7.6-1
>     > >
>     > > Do you want the log from the day i delete snapshot?
>     > >
>     > > ----- Mail original -----
>     > > De: "Shani Leviim" <sleviim at redhat.com
>     <mailto:sleviim at redhat.com>>
>     > > À: "Lionel Caignec" <caignec at cines.fr <mailto:caignec at cines.fr>>
>     > > Cc: "users" <users at ovirt.org <mailto:users at ovirt.org>>
>     > > Envoyé: Lundi 26 Février 2018 14:29:16
>     > > Objet: Re: [ovirt-users] Ghost Snapshot Disk
>     > >
>     > > Hi,
>     > >
>     > > What is your engine version, please?
>     > > I'm trying to reproduce your steps, for understanding better
>     was is the
>     > > cause for that error. Therefore, a full engine log is needed.
>     > > Can you please attach it?
>     > >
>     > > Thanks,
>     > >
>     > >
>     > > *Shani Leviim*
>     > >
>     > > On Mon, Feb 26, 2018 at 2:48 PM, Lionel Caignec
>     <caignec at cines.fr <mailto:caignec at cines.fr>>
>     > wrote:
>     > >
>     > > > Hi
>     > > >
>     > > > 1) this is error message from ui.log
>     > > >
>     > > >  2018-02-26 13:44:10,001+01 ERROR [org.ovirt.engine.ui.frontend.
>     > > > server.gwt.OvirtRemoteLoggingService] (default task-3) []
>     Permutation
>     > > > name: 8C01181C3B121D0AAE1312275CC96415
>     > > > 2018-02-26 13:44:10,001+01 ERROR [org.ovirt.engine.ui.frontend.
>     > > server.gwt.OvirtRemoteLoggingService]
>     > > > (default task-3) [] Uncaught exception:
>     com.google.gwt.core.client.
>     > > JavaScriptException:
>     > > > (TypeError)
>     > > >  __gwt$exception: <skipped>: Cannot read property 'F' of null
>     > > >         at org.ovirt.engine.ui.uicommonweb.models.storage.
>     > > > DisksAllocationModel$3.$onSuccess(DisksAllocationModel.java:120)
>     > > >         at org.ovirt.engine.ui.uicommonweb.models.storage.
>     > > > DisksAllocationModel$3.onSuccess(DisksAllocationModel.java:120)
>     > > >         at org.ovirt.engine.ui.frontend.Frontend$2.$onSuccess(
>     > > Frontend.java:233)
>     > > > [frontend.jar:]
>     > > >         at
>     org.ovirt.engine.ui.frontend.Frontend$2.onSuccess(Frontend.
>     > > java:233)
>     > > > [frontend.jar:]
>     > > >         at org.ovirt.engine.ui.frontend.communication.
>     > > > OperationProcessor$2.$onSuccess(OperationProcessor.java:139)
>     > > > [frontend.jar:]
>     > > >         at org.ovirt.engine.ui.frontend.communication.
>     > > > OperationProcessor$2.onSuccess(OperationProcessor.java:139)
>     > > > [frontend.jar:]
>     > > >         at org.ovirt.engine.ui.frontend.communication.
>     > > > GWTRPCCommunicationProvider$5$1.$onSuccess(
>     > GWTRPCCommunicationProvider.
>     > > java:269)
>     > > > [frontend.jar:]
>     > > >         at org.ovirt.engine.ui.frontend.communication.
>     > > >
>     GWTRPCCommunicationProvider$5$1.onSuccess(GWTRPCCommunicationProvider.
>     > > java:269)
>     > > > [frontend.jar:]
>     > > >         at
>     com.google.gwt.user.client.rpc.impl.RequestCallbackAdapter.
>     > > > onResponseReceived(RequestCallbackAdapter.java:198)
>     [gwt-servlet.jar:]
>     > > >         at
>     com.google.gwt.http.client.Request.$fireOnResponseReceived(
>     > > Request.java:237)
>     > > > [gwt-servlet.jar:]
>     > > >         at com.google.gwt.http.client.RequestBuilder$1.
>     > > onReadyStateChange(RequestBuilder.java:409)
>     > > > [gwt-servlet.jar:]
>     > > >         at Unknown.eval(webadmin-0.js at 65)
>     > > >         at
>     com.google.gwt.core.client.impl.Impl.apply(Impl.java:296)
>     > > > [gwt-servlet.jar:]
>     > > >         at
>     com.google.gwt.core.client.impl.Impl.entry0(Impl.java:335)
>     > > > [gwt-servlet.jar:]
>     > > >         at Unknown.eval(webadmin-0.js at 54)
>     > > >
>     > > >
>     > > > 2) This line seems to be about the bad disk :
>     > > >
>     > > >  f242cc9a-56c1-4ae4-aef0-f75eb01f74b1 | 2018-01-17 22:02:00+01 |
>     > > > 2748779069440 | 00000000-0000-0000-0000-000000000000 |
>     > > > 00000000-0000-0000-0000-000000000000 |           4 | 2018-01-18
>     > > > 22:01:20.5+01   | 0dd2090c-3491-4fa1-98c3-54ae88be793c
>     > > >
>     > > >
>     > > > 3) Snapshot table is empty for the concerned vm_id.
>     > > >
>     > > > ----- Mail original -----
>     > > > De: "Shani Leviim" <sleviim at redhat.com
>     <mailto:sleviim at redhat.com>>
>     > > > À: "Lionel Caignec" <caignec at cines.fr <mailto:caignec at cines.fr>>
>     > > > Cc: "users" <users at ovirt.org <mailto:users at ovirt.org>>
>     > > > Envoyé: Lundi 26 Février 2018 13:31:23
>     > > > Objet: Re: [ovirt-users] Ghost Snapshot Disk
>     > > >
>     > > > Hi Lionel,
>     > > >
>     > > > The error message you've mentioned sounds like a UI error.
>     > > > Can you please attach your ui log?
>     > > >
>     > > > Also, on the data from 'images' table you've uploaded, can
>     you describe
>     > > > which line is the relevant disk?
>     > > >
>     > > > Finally (for now), in case the snapshot was deleted, can you
>     please
>     > > > validate it by viewing the output of:
>     > > > $ select * from snapshots;
>     > > >
>     > > >
>     > > >
>     > > > *Regards,*
>     > > >
>     > > > *Shani Leviim*
>     > > >
>     > > > On Mon, Feb 26, 2018 at 9:20 AM, Lionel Caignec
>     <caignec at cines.fr <mailto:caignec at cines.fr>>
>     > > wrote:
>     > > >
>     > > > > Hi Shani,
>     > > > > thank you for helping me with your reply,
>     > > > > i juste make a little mistake on explanation. In fact it's the
>     > snapshot
>     > > > > does not exist anymore. This is the disk(s) relative to
>     her wich
>     > still
>     > > > > exist, and perhaps LVM volume.
>     > > > > So can i delete manually this disk in database? what about
>     the lvm
>     > > > volume?
>     > > > > Is it better to recreate disk sync data and destroy old one?
>     > > > >
>     > > > >
>     > > > >
>     > > > > ----- Mail original -----
>     > > > > De: "Shani Leviim" <sleviim at redhat.com
>     <mailto:sleviim at redhat.com>>
>     > > > > À: "Lionel Caignec" <caignec at cines.fr
>     <mailto:caignec at cines.fr>>
>     > > > > Cc: "users" <users at ovirt.org <mailto:users at ovirt.org>>
>     > > > > Envoyé: Dimanche 25 Février 2018 14:26:41
>     > > > > Objet: Re: [ovirt-users] Ghost Snapshot Disk
>     > > > >
>     > > > > Hi Lionel,
>     > > > >
>     > > > > You can try to delete that snapshot directly from the
>     database.
>     > > > >
>     > > > > In case of using psql  [1], once you've logged in to your
>     database,
>     > you
>     > > > can
>     > > > > run this query:
>     > > > > $ select * from snapshots where vm_id = '<your_vm_id>';
>     > > > > This one would list the snapshots associated with a VM by
>     its id.
>     > > > >
>     > > > > In case you don't have you vm_id, you can locate it by
>     querying:
>     > > > > $ select * from vms where vm_name = 'nil';
>     > > > > This one would show you some details about a VM by its name
>     > (including
>     > > > the
>     > > > > vm's id).
>     > > > >
>     > > > > Once you've found the relevant snapshot, you can delete it by
>     > running:
>     > > > > $ delete from snapshots where snapshot_id =
>     '<your_snapshot_id>';
>     > > > > This one would delete the desired snapshot from the database.
>     > > > >
>     > > > > Since it's a delete operation, I would suggest confirming
>     the ids
>     > > before
>     > > > > executing it.
>     > > > >
>     > > > > Hope you've found it useful!
>     > > > >
>     > > > > [1]
>     > > > > https://www.ovirt.org/documentation/install-guide/
>     <https://www.ovirt.org/documentation/install-guide/>
>     > > > appe-Preparing_a_Remote_
>     > > > > PostgreSQL_Database_for_Use_with_the_oVirt_Engine/
>     > > > >
>     > > > >
>     > > > > *Regards,*
>     > > > >
>     > > > > *Shani Leviim*
>     > > > >
>     > > > > On Fri, Feb 23, 2018 at 9:25 AM, Lionel Caignec
>     <caignec at cines.fr <mailto:caignec at cines.fr>>
>     > > > wrote:
>     > > > >
>     > > > > > Hi,
>     > > > > >
>     > > > > > i've a problem with snapshot. On one VM i've a
>     "snapshot" ghost
>     > > without
>     > > > > > name or uuid, only information is size (see attachment).
>     In the
>     > > > snapshot
>     > > > > > tab there is no trace about this disk.
>     > > > > >
>     > > > > > In database (table images) i found this :
>     > > > > >   f242cc9a-56c1-4ae4-aef0-f75eb01f74b1 | 2018-01-17
>     22:02:00+01 |
>     > > > > > 2748779069440 | 00000000-0000-0000-0000-000000000000 |
>     > > > > > 00000000-0000-0000-0000-000000000000 |           4 |
>     2018-01-18
>     > > > > > 22:01:20.5+01   | 0dd2090c-3491-4fa1-98c3-54ae88be793c
>     > > > > >  |           2 |             4 | 17e26476-cecb-441d-a5f7-
>     > > 46ab3ef387ee
>     > > > |
>     > > > > > 2018-01-17 22:01:29.663334+01 | 2018-01-19
>     08:40:14.345229+01 | f
>     > > > |
>     > > > > >                  1 |  2
>     > > > > >  1c7650fa-542b-4ec2-83a1-d2c1c31be5fd | 2018-01-17
>     22:02:03+01 |
>     > > > > > 5368709120000 | 00000000-0000-0000-0000-000000000000 |
>     > > > > > 00000000-0000-0000-0000-000000000000 |           4 |
>     2018-01-18
>     > > > > > 22:01:20.84+01  | 0dd2090c-3491-4fa1-98c3-54ae88be793c
>     > > > > >  |           2 |             4 | bf834a91-c69f-4d2c-b639-
>     > > 116ed58296d8
>     > > > |
>     > > > > > 2018-01-17 22:01:29.836133+01 | 2018-01-19
>     08:40:19.083508+01 | f
>     > > > |
>     > > > > >                  1 |  2
>     > > > > >  8614b21f-c0de-40f2-b4fb-e5cf193b0743 | 2018-02-09
>     23:00:44+01 |
>     > > > > > 5368709120000 | 00000000-0000-0000-0000-000000000000 |
>     > > > > > 00000000-0000-0000-0000-000000000000 |           4 |
>     2018-02-16
>     > > > > > 23:00:02.855+01 | 390175dc-baf4-4831-936a-5ea68fa4c969
>     > > > > >
>     > > > > >
>     > > > > >  But i does not know which line is my disk. Is it
>     possible to
>     > delete
>     > > > > > directly into database?
>     > > > > >  Or is it better to dump my disk to another new and
>     delete the
>     > > > "corrupted
>     > > > > > one"?
>     > > > > >
>     > > > > >  Another thing, when i try to move the disk to another
>     storage
>     > > domain i
>     > > > > > always get "uncaght exeption occured ..." and no error in
>     > engine.log.
>     > > > > >
>     > > > > >
>     > > > > >  Thank you for helping.
>     > > > > >
>     > > > > > --
>     > > > > > Lionel Caignec
>     > > > > >
>     > > > > > _______________________________________________
>     > > > > > Users mailing list
>     > > > > > Users at ovirt.org <mailto:Users at ovirt.org>
>     > > > > > http://lists.ovirt.org/mailman/listinfo/users
>     <http://lists.ovirt.org/mailman/listinfo/users>
>     > > > > >
>     > > > > >
>     > > > >
>     > > >
>     > >
>     >
>     _______________________________________________
>     Users mailing list
>     Users at ovirt.org <mailto:Users at ovirt.org>
>     http://lists.ovirt.org/mailman/listinfo/users
>     <http://lists.ovirt.org/mailman/listinfo/users>
>
>
>
>
> _______________________________________________
> Users mailing list
> Users at ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users


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