[one-users] Opennebula 4.0, Ceph cluster migrate vm problem

[Ruben S. Montero]

Hi

Can you check that the checkpoint file is created and it has access
permissions for oneadmin?. Could it be an issue with the KVM
configuration (dynamic_ownership or user/group). From the logs it
seems that the checkpoint file is not created or cannot be read... You
can also try onevm stop/resume to test the checkpoint functionality.

Cheers

Ruben

On Tue, Apr 16, 2013 at 4:50 PM, Stefan Ivanov <s.ivanov at maxtelecom.bg> wrote:
> Hello all.
>
> I have problem with migration of virtual machines. When i try to migrate
> from hos to host i get this error:
>     VMM][I]: Command execution fail: /var/tmp/one/vmm/kvm/restore
> /var/lib/one//datastores/0/4/checkpoint gamma 4 gamma
> Tue Apr 16 17:46:30 2013 [VMM][E]: restore: Command "virsh --connect
> qemu:///system restore /var/lib/one//datastores/0/4/checkpoint" failed:
> error: Failed to restore domain from /var/lib/one//datastores/0/4/checkpoint
>
> There is my datastore info:
>     DATASTORE 107 INFORMATION
> ID             : 107
> NAME           : ceph_data
> USER           : oneadmin
> GROUP          : oneadmin
> CLUSTER        : -
> TYPE           : IMAGE
> DS_MAD         : ceph
> TM_MAD         : ceph
> BASE PATH      : /var/lib/one/datastores/107
> DISK_TYPE      : RBD
>
> PERMISSIONS
> OWNER          : um-
> GROUP          : u--
> OTHER          : ---
>
> DATASTORE TEMPLATE
> DISK_TYPE="RBD"
> DS_MAD="ceph"
> HOST="alpha"
> POOL_NAME="data"
> TM_MAD="ceph"
> TYPE="IMAGE_DS"
>
>
> There is mu error log.
>     Tue Apr 16 17:46:25 2013 [LCM][I]: New VM state is SAVE_MIGRATE
> Tue Apr 16 17:46:27 2013 [VMM][I]: ExitCode: 0
> Tue Apr 16 17:46:27 2013 [VMM][I]: Successfully execute virtualization
> driver operation: save.
> Tue Apr 16 17:46:27 2013 [VMM][I]: ExitCode: 0
> Tue Apr 16 17:46:27 2013 [VMM][I]: Successfully execute network driver
> operation: clean.
> Tue Apr 16 17:46:29 2013 [LCM][I]: New VM state is PROLOG_MIGRATE
> Tue Apr 16 17:46:29 2013 [TM][I]: ExitCode: 0
> Tue Apr 16 17:46:29 2013 [TM][I]: ExitCode: 0
> Tue Apr 16 17:46:30 2013 [LCM][I]: New VM state is BOOT
> Tue Apr 16 17:46:30 2013 [VMM][I]: ExitCode: 0
> Tue Apr 16 17:46:30 2013 [VMM][I]: Successfully execute network driver
> operation: pre.
> Tue Apr 16 17:46:30 2013 [VMM][I]: Command execution fail:
> /var/tmp/one/vmm/kvm/restore /var/lib/one//datastores/0/4/checkpoint gamma 4
> gamma
> Tue Apr 16 17:46:30 2013 [VMM][E]: restore: Command "virsh --connect
> qemu:///system restore /var/lib/one//datastores/0/4/checkpoint" failed:
> error: Failed to restore domain from /var/lib/one//datastores/0/4/checkpoint
> Tue Apr 16 17:46:30 2013 [VMM][I]: error: Failed to create file
> '/var/lib/one//datastores/0/4/checkpoint': No such file or directory
> Tue Apr 16 17:46:30 2013 [VMM][E]: Could not restore from
> /var/lib/one//datastores/0/4/checkpoint
> Tue Apr 16 17:46:30 2013 [VMM][I]: ExitCode: 1
> Tue Apr 16 17:46:30 2013 [VMM][I]: Failed to execute virtualization driver
> operation: restore.
> Tue Apr 16 17:46:30 2013 [VMM][E]: Error restoring VM: Could not restore
> from /var/lib/one//datastores/0/4/checkpoint
> Tue Apr 16 17:46:32 2013 [DiM][I]: New VM state is FAILED
>
> Any ideas what is the problem?
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-- 
Ruben S. Montero, PhD
Project co-Lead and Chief Architect
OpenNebula - The Open Source Solution for Data Center Virtualization
www.OpenNebula.org | rsmontero at opennebula.org | @OpenNebula