[one-users] Live migrate error, disk.0 does not exists at destination

[Jaime Melis]

Hi,

I don't quite understand what workflow you followed to get this. Is this
still happening? can you reproduce this?

cheers,
Jaime


On Wed, Aug 14, 2013 at 3:15 PM, Nicolas Bélan <nicolas.belan at gmail.com>wrote:

>  hum ...
> I tried the next case; shutdown one HV ..
>
> I shared DS 0 using HA NAS.
> I got now:
> Wed Aug 14 15:09:12 2013 [TM][D]: Message received: LOG I 77 Command
> execution fail: /var/lib/one/remotes/tm/shared/context
> /var/lib/one/vms/77/context.sh hostB:/var/lib/one//datastores/0/77/disk.1
> 77 0
>
> Wed Aug 14 15:09:12 2013 [TM][D]: Message received: LOG I 77 context:
> Generating context block device at
> hostB:/var/lib/one//datastores/0/77/disk.1
>
> Wed Aug 14 15:09:12 2013 [TM][D]: Message received: LOG E 77 context:
> Command "ln -s /var/lib/one/datastores/0/77/disk.1
> /var/lib/one/datastores/0/77/disk.1.iso" failed: ln: creating symbolic link
> `/var/lib/one/datastores/0/77/disk.1.iso': File exists
>
> Wed Aug 14 15:09:12 2013 [TM][D]: Message received: LOG E 77 Error
> creating ISO symbolic link
>
> Wed Aug 14 15:09:12 2013 [TM][D]: Message received: LOG I 77 ExitCode: 1
>
> Wed Aug 14 15:09:12 2013 [TM][D]: Message received: TRANSFER FAILURE 77
> Error creating ISO symbolic link
>
> Wed Aug 14 15:09:12 2013 [ReM][D]: Req:8048 UID:0 VirtualMachineAction
> invoked, "delete-recreate", 77
> Wed Aug 14 15:09:12 2013 [ReM][D]: Req:4592 UID:0 VirtualMachineAction
> invoked, "delete", 77
> Wed Aug 14 15:09:12 2013 [DiM][D]: Finalizing VM 77
>
> This is logical, because disk.1.iso was created on hostA, then, retrying
> to restart VM 77 to hostB encounters an error, because file already exists
> ...
>
> The log was generated because I activated the hook to restart VMs on other
> HV ...
>
> Then, my VMs was deleted ...
>
> Best regards,
> Nicolas
>
> Le 14/08/13 14:46, Jaime Melis a écrit :
>
> Hi Nicolas,
>
>  it's more or less explicitely stated by this section:
> http://opennebula.org/documentation:rel4.2:system_ds#host_configuration
>
>  cheers,
> Jaime
>
>
> On Wed, Aug 14, 2013 at 7:54 AM, Nicolas Bélan <nicolas.belan at gmail.com>wrote:
>
>>  Hum, that's not very clear in the doc.
>> I though that DS 0 was local to all ALL hypervisors ...
>>
>> Thank you
>>
>> Le 14/08/13 13:51, Jaime Melis a écrit :
>>
>> Hi Nicolas,
>>
>>  /var/lib/one/datastores/0 should be shared (using NFS for example)
>> across all the hosts.
>>
>>  regards,
>> Jaime
>>
>>
>> On Mon, Aug 12, 2013 at 7:40 AM, Nicolas Bélan <nicolas.belan at gmail.com>wrote:
>>
>>>  Hello the list,
>>>
>>> I am using OpenNebula 4.2 with a shared (qcow2) storage + kvm.
>>> I am trying to livre migrate a vm from hostA to hostB.
>>> It fails with the following message:
>>>
>>> Mon Aug 12 13:30:57 2013 [DiM][D]: Live-migrating VM 45
>>> Mon Aug 12 13:30:57 2013 [ReM][D]: Req:656 UID:0 VirtualMachineMigrate
>>> result SUCCESS, 45
>>> Mon Aug 12 13:30:57 2013 [ReM][D]: Req:5920 UID:0 VirtualMachineInfo
>>> invoked, 45
>>> Mon Aug 12 13:30:57 2013 [ReM][D]: Req:5920 UID:0 VirtualMachineInfo
>>> result SUCCESS, "<VM><ID>45</ID><UID>..."
>>> Mon Aug 12 13:30:57 2013 [VMM][D]: Message received: LOG I 45
>>> Successfully execute transfer manager driver operation: tm_premigrate.
>>> Mon Aug 12 13:30:58 2013 [VMM][D]: Message received: LOG I 45 ExitCode: 0
>>> Mon Aug 12 13:30:58 2013 [VMM][D]: Message received: LOG I 45
>>> Successfully execute network driver operation: pre.
>>> Mon Aug 12 13:30:58 2013 [VMM][D]: Message received: LOG I 45 Command
>>> execution fail: /var/tmp/one/vmm/kvm/migrate 'one-45' 'hostB' 'hostA' 45
>>> hostB
>>>
>>> *Mon Aug 12 13:30:58 2013 [VMM][D]: Message received: LOG E 45 migrate:
>>> Command "virsh --connect qemu:///system migrate --live one-45
>>> qemu+ssh://hostB/system" failed: error: cannot open file
>>> '/var/lib/one//datastores/0/45/disk.0': Aucun fichier ou dossier de ce type
>>> * (tra: No such file or directory)
>>>
>>> Mon Aug 12 13:30:58 2013 [VMM][D]: Message received: LOG E 45 Could not
>>> migrate one-45 to hostB
>>> Mon Aug 12 13:30:58 2013 [VMM][D]: Message received: LOG I 45 ExitCode: 1
>>> Mon Aug 12 13:30:58 2013 [VMM][D]: Message received: LOG I 45 Failed to
>>> execute virtualization driver operation: migrate.
>>> Mon Aug 12 13:30:58 2013 [VMM][D]: Message received: MIGRATE FAILURE 45
>>> Could not migrate one-45 to hostB
>>>
>>> As I understand, using a shared datastore, One create a symlink to the
>>> real shared DS into the DS 0 (for system images).
>>> But, It seems that on target hostB, the symlink is not created before
>>> migration....
>>> Am I missing something ?
>>>
>>> Thank you
>>>
>>> Best regards,
>>> Nicolas.
>>>
>>> _______________________________________________
>>> Users mailing list
>>> Users at lists.opennebula.org
>>> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>>>
>>>
>>
>>
>>  --
>> Join us at OpenNebulaConf2013 <http://opennebulaconf.com/> in Berlin, 24-26
>> September, 2013
>> --
>> Jaime Melis
>> Project Engineer
>> OpenNebula - The Open Source Toolkit for Cloud Computing
>> www.OpenNebula.org | jmelis at opennebula.org
>>
>>
>>
>
>
>  --
> Join us at OpenNebulaConf2013 <http://opennebulaconf.com/> in Berlin, 24-26
> September, 2013
> --
> Jaime Melis
> Project Engineer
> OpenNebula - The Open Source Toolkit for Cloud Computing
> www.OpenNebula.org | jmelis at opennebula.org
>
>
>


-- 
Join us at OpenNebulaConf2013 <http://opennebulaconf.com/> in Berlin, 24-26
September, 2013
--
Jaime Melis
Project Engineer
OpenNebula - The Open Source Toolkit for Cloud Computing
www.OpenNebula.org | jmelis at opennebula.org
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