Re: [Users] All VMs disappeared
Liron, looks like you were right and it was not the business_entities_snapshot but the
async_tasks that caused the data loss. I hope there are no more of these :) Can you help
to figure out how the import operation could have failed in this way? Is there a BZ for
this already?
Thank you,
Laszlo
----- Original Message -----
From: "Jakub Bittner" <j.bittner(a)nbu.cz>
To: users(a)ovirt.org
Sent: Wednesday, August 28, 2013 5:12:23 PM
Subject: Re: [Users] All VMs disappeared
Dne 27.8.2013 16:01, Laszlo Hornyak napsal(a):
> Thank you Frank, I will investigate this issue.
>
> ----- Original Message -----
>> From: "Frank Wall" <fw(a)moov.de>
>> To: users(a)ovirt.org
>> Sent: Tuesday, August 27, 2013 2:44:44 PM
>> Subject: Re: [Users] All VMs disappeared
>>
>> Hi Laszlo,
>>
>> On 27.08.2013 14:24, Laszlo Hornyak wrote:
>>> If I understand correctly, this is what happens to your installation,
>>> the AddVmFromTemplate command goes to fail and engine tries to
>>> compensate, and upon successful compensation you get VM records
>>> removed from DB and storage cleaned up.
>> just to be sure, please note, that the task actually completed
>> successfully from my point of view. The new VM (direved from the
>> template clone task) is fully usable and on the webadmin the task is
>> shown as "completed".
>>
>> So maybe at some point in time the engine does get the job status wrong
>> and the problem begins...
>>
>>> I need to look into this but I think it should be safe to remove this
>>> record while the engine is down. Make sure to make a backup if you
>>> try!
>> OK, I did the following test:
>>
>> - created a new VM from my custom template (with cloned Disk)
>> - waited for the job to complete
>> - manually deleted the related DB entry from the table "async_tasks"
>> - set host/node to maintenance
>> - rebootet engine
>>
>> Result: The VM did NOT disappear! :-)
>>
>> I think somehow ovirt-engine does get the results of the job wrong, thus
>> it does not recognize that the job completed *successfully* and does a
>> retry after reboot (which fails horribly and leads to disappearing VMs).
>>
>>
>> Thanks
>> - Frank
>>
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Hi,
I manually deleted async_tasks and I dont have problem with disappearing
of VMs. Thanks
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