[ovirt-users] stange behavious on virtual machine wilt multiple snapshots

[Maor Lipchuk]

Regarding the clean tasks please see the following wiki :
http://www.ovirt.org/OVirt-DB-Issues/HelperUtilities#taskcleaner

Regarding the VM, can please share the following output from the folder /rhev/data-center/124ae76f-8acb-412e-91cc-dff9f6ec665d/7be6092d-fce1-45b5-a383-3ead3cdfe457/images/bb5d12ce-1845-42c8-8a6c-abbb73999f5d/:

1) ls -ls

2) also what is the output of each volume in the folder:
 Please try to execute qemu-img info {Guid of each volume in the image folder}

Thanks,
Maor

----- Original Message -----
> From: "Roel de Rooy" <RdeRooy at motto.nl>
> To: users at ovirt.org
> Sent: Wednesday, October 21, 2015 12:22:20 PM
> Subject: Re: [ovirt-users] stange behavious on virtual machine wilt	multiple	snapshots
> 
> I managed to stop the failed messages from being logged within the event log.
> I used the clear async task option within vdsClient  to remove the task from
> the host.
> 
> After restarting the engine daemon, the error message within the events and
> the finalizing subtasks stopped.
> The task itself is still visible as running, so my best guess is that  I have
> to manually remove it from the database, correct?
> Already updated the specific tables within the database to unlock the VM and
> the disk inside VM.
> 
> Unfortunately I am still puzzled on how to proceed with the error message the
> VM is producing:
> 
> "down with error. Exit message: internal error: early end of file from
> monitor: possible problem:
> 2015-10-20T00:06:08.134352Z qemu-system-x86_64: -drive
> file=/rhev/data-center/124ae76f-8acb-412e-91cc-dff9f6ec665d/7be6092d-fce1-45b5-a383-3ead3cdfe457/images/bb5d12ce-1845-42c8-8a6c-abbb73999f5d/941ba152-9bc7-4aaa-8dfa-f1b9f7c3281b,if=none,id=drive-virtio-disk0,format=qcow2,serial=bb5d12ce-1845-42c8-8a6c-abbb73999f5d,cache=none,werror=stop,rerror=stop,aio=threads:
> could not open disk image
> /rhev/data-center/124ae76f-8acb-412e-91cc-dff9f6ec665d/7be6092d-fce1-45b5-a383-3ead3cdfe457/images/bb5d12ce-1845-42c8-8a6c-abbb73999f5d/941ba152-9bc7-4aaa-8dfa-f1b9f7c3281b:
> Could not open backing file: Could not open backing file: Could not open
> backing file: Could not open backing file: Could not open backing file:
> Could not open backing file: Could not open backing file: Could not open
> backing file: Could not open backing file: Could not open backing file:
> Could not open backing file: Could not open backing file: Could not open
> backing file: Could not open backing file."
> 
> 
> When looking within the vdsm log; before the attempt is made to start the VM,
> the following messages are visible for all images within the specific VM
> folder:
> "Thread-670750::DEBUG::2015-10-21
> 10:15:12,775::fileSD::499::Storage.StorageDomain::(activateVolumes) Fixing
> permissions on /rhev/data-center/mnt/ ."
> 
> Could this be permissions related?
> 
> Kind regards,
> Roel
> 
> 
> Van: users-bounces at ovirt.org [mailto:users-bounces at ovirt.org] Namens Roel de
> Rooy
> Verzonden: 21 October 2015 09:45
> Aan: users at ovirt.org
> Onderwerp: [ovirt-users] stange behavious on virtual machine wilt multiple
> snapshots
> 
> Hi all,
> 
> One of our VM's is behaving strangely.
> We are using oVirt Engine 3.5.4.
> The host where the VM is located is F20 with virt-preview repository
> installed.
> 
> When trying to start the VM, the following error message is visible:
> 
> "down with error. Exit message: internal error: early end of file from
> monitor: possible problem:
> 2015-10-20T00:06:08.134352Z qemu-system-x86_64: -drive
> file=/rhev/data-center/124ae76f-8acb-412e-91cc-dff9f6ec665d/7be6092d-fce1-45b5-a383-3ead3cdfe457/images/bb5d12ce-1845-42c8-8a6c-abbb73999f5d/941ba152-9bc7-4aaa-8dfa-f1b9f7c3281b,if=none,id=drive-virtio-disk0,format=qcow2,serial=bb5d12ce-1845-42c8-8a6c-abbb73999f5d,cache=none,werror=stop,rerror=stop,aio=threads:
> could not open disk image
> /rhev/data-center/124ae76f-8acb-412e-91cc-dff9f6ec665d/7be6092d-fce1-45b5-a383-3ead3cdfe457/images/bb5d12ce-1845-42c8-8a6c-abbb73999f5d/941ba152-9bc7-4aaa-8dfa-f1b9f7c3281b:
> Could not open backing file: Could not open backing file: Could not open
> backing file: Could not open backing file: Could not open backing file:
> Could not open backing file: Could not open backing file: Could not open
> backing file: Could not open backing file: Could not open backing file:
> Could not open backing file: Could not open backing file: Could not open
> backing file: Could not open backing file."
> 
> After investigating this issue, we found out that the VM had 25 disk
> snapshots attached.
> We tried to remove 2 of them, which succeeded, but due to the time it would
> take to remove them all, we figured it would also be possible to just export
> the vm to the exportdisk and reimport it again.
> 
> Unfortunately now the attached screenshot is happening.
> 
> Each of the 'finalizing' subtasks corresponds with a 'Failed to export Vm
> xxxx to xxxx' message within the event log.
> 
> Is there a possibility  to stop this task?
> 
> The vdsClient on the host gives the following info about the task:
> 
> 5c2763ce-21b7-4669-b66d-5f5ea075be4a :
>         verb = moveImage
>         code = 0
>         state = finished
>         tag = spm
>         result =
>         message = 1 jobs completed successfully
>         id = 5c2763ce-21b7-4669-b66d-5f5ea075be4a
> 
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