[one-users] Opennebula migration error

[Carlos Martín Sánchez]

Hi,

On Fri, Jan 10, 2014 at 3:43 PM, Vlad Mirel <vlad.mirel at outlook.com> wrote:

> Hello!
>
> I have installed Latest Series 4 Stable of OpenNebula.
> I have 2 worker nodes and 1 front-end. On both the worker nodes I can
> deploy virtual machines.
> The problem occurs when I try to migrate one virtual machine from one of
> the worker nodes to the other one. I am trying to create a cold migration
> and I am not using a shared data storage, as I am counting on scp .
>
> So, for example I try to do this operation: Migrate from host A to host B.
>
> In my opinion, a POSSIBLE CAUSE might be the followin:
> -the checkpoint is not copied to the host B => no such file or directory
>

Just to be sure, can you paste the output of onedatastore list? All the DS
should have 'ssh' as the TM (transfer manager).

Do you have the same problem if you try to suspend + resume a VM?

Regards
--
Carlos Martín, MSc
Project Engineer
OpenNebula - Flexible Enterprise Cloud Made Simple
www.OpenNebula.org | cmartin at opennebula.org |
@OpenNebula<http://twitter.com/opennebula><cmartin at opennebula.org>


On Fri, Jan 10, 2014 at 3:43 PM, Vlad Mirel <vlad.mirel at outlook.com> wrote:

> Hello!
>
> I have installed Latest Series 4 Stable of OpenNebula.
> I have 2 worker nodes and 1 front-end. On both the worker nodes I can
> deploy virtual machines.
> The problem occurs when I try to migrate one virtual machine from one of
> the worker nodes to the other one. I am trying to create a cold migration
> and I am not using a shared data storage, as I am counting on scp .
>
> So, for example I try to do this operation: Migrate from host A to host B.
>
> Here are the logs containing the error:
>
> Thu Jan 9 17:43:04 2014 [LCM][I]: New VM state is SAVE_MIGRATE
> Thu Jan 9 17:43:10 2014 [VMM][I]: ExitCode: 0
> Thu Jan 9 17:43:10 2014 [VMM][I]: Successfully execute virtualization
> driver operation: save.
> Thu Jan 9 17:43:10 2014 [VMM][I]: ExitCode: 0
> Thu Jan 9 17:43:10 2014 [VMM][I]: Successfully execute network driver
> operation: clean.
> Thu Jan 9 17:43:11 2014 [LCM][I]: New VM state is PROLOG_MIGRATE
> Thu Jan 9 17:43:11 2014 [LCM][I]: New VM state is BOOT
> Thu Jan 9 17:43:12 2014 [VMM][I]: ExitCode: 0
> Thu Jan 9 17:43:12 2014 [VMM][I]: Successfully execute network driver
> operation: pre.
> Thu Jan 9 17:43:12 2014 [VMM][I]: Command execution fail:
> /var/tmp/one/vmm/kvm/restore '/var/lib/one/datastores/0/230/checkpoint'
> '192.168.1.100' 230 192.168.1.100
> Thu Jan 9 17:43:12 2014 [VMM][E]: restore: Command "virsh --connect
> qemu:///system restore /var/lib/one/datastores/0/230/checkpoint" failed:
> error: Failed to restore domain from
> /var/lib/one/datastores/0/230/checkpoint
> Thu Jan 9 17:43:12 2014 [VMM][I]: error: Failed to create file
> '/var/lib/one/datastores/0/230/checkpoint': No such file or directory
> Thu Jan 9 17:43:12 2014 [VMM][E]: Could not restore from
> /var/lib/one/datastores/0/230/checkpoint
> Thu Jan 9 17:43:12 2014 [VMM][I]: ExitCode: 1
> Thu Jan 9 17:43:12 2014 [VMM][I]: Failed to execute virtualization driver
> operation: restore.
> Thu Jan 9 17:43:12 2014 [VMM][E]: Error restoring VM: Could not restore
> from /var/lib/one/datastores/0/230/checkpoint
> Thu Jan 9 17:43:12 2014 [DiM][I]: New VM state is FAILED
>
> This instruction, if ran on host A, where the checkpoint exists gives the
> following output:
>
> Last login: Thu Jan  9 15:51:59 2014 from utcn.local
> $
> $ virsh --connect qemu:///system restore
> /var/lib/one/datastores/0/228/checkpoint
> Domain restored from /var/lib/one/datastores/0/228/checkpoint
>
> When ran on host B I get the following output:
>
> Last login: Thu Jan  9 15:26:11 2014 from utcn.local
> $ virsh --connect qemu:///system restore
> /var/lib/one/datastores/0/228/checkpoint
> error: Failed to restore domain from
> /var/lib/one/datastores/0/228/checkpoint
> error: Failed to create file '/var/lib/one/datastores/0/228/checkpoint':
> No such file or directory
>
> ---------> this errors are identical with those from SUNSTONE
>
> In my opinion, a POSSIBLE CAUSE might be the followin:
> -the checkpoint is not copied to the host B => no such file or directory
>
>
> I would appreciate any help!
>
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> Users at lists.opennebula.org
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>
>
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