[one-users] cancel live migration in progress

[samuel]

Just to conclude the issue:

After almost 2 days, the migration has succeed:

Tue Oct 18 11:00:31 2011 [LCM][I]: New VM state is MIGRATE
Thu Oct 20 06:06:57 2011 [LCM][I]: New VM state is RUNNING

And the machine seems to be working perfectly so I'll just say:
*stay calm and patience

Thanks a lot for the support and for the great product,
Samuel.

On 19 October 2011 11:56, samuel <samu60 at gmail.com> wrote:

> So the only option is to backup somehow the migrating instance and manually
> recover Open Nebula? The main concern is what will be the status of the
> currently migrating VM....probably the best is to recreate it?
>
> Would it be good to add a timeout in the migrate script so it launches an
> error to Open Nebula? I'm sorry but I'm not familiar with One internals and
> I'm not sure what will be affected if we add timeout to the live migration
> virsh command...
>
> Thanks for your support,
> Samuel.
>
>
> On 18 October 2011 22:53, Javier Fontan <jfontan at opennebula.org> wrote:
>
>> Unfortunately I don't know of any way to stop or recover the failed
>> migration with OpenNebula or manually.
>>
>> Rebooting a physical host will basically destroy the running VMs and
>> most probably the disks will be corrupted.
>>
>> On Tue, Oct 18, 2011 at 2:34 PM, samuel <samu60 at gmail.com> wrote:
>> > I add more information so you can follow the steps taken and the final
>> > issue.
>> >
>> > 1)segfault on node 2:
>> > [620617.517308] kvm[28860]: segfault at 420 ip 0000000000413714 sp
>> > 00007fff9136ea70 error 4 in qemu-system-x86_64[400000+335000]
>> >
>> > VMs work OK
>> >
>> > 2)restart libvirt on node 2
>> > /init.d/libvirt-bin restart
>> >
>> > libvirt is able to check local VM:
>> > # virsh list
>> >  Id Nombre               Estado
>> > ----------------------------------
>> >   2 one-47               ejecutando
>> >   3 one-44               ejecutando
>> >
>> > 3)tried to live-migrate one-44 from node2 to node3 using the sunstone
>> web
>> > interface
>> >
>> > vm.log:
>> > Tue Oct 18 11:00:31 2011 [LCM][I]: New VM state is MIGRATE
>> >
>> > oned.log:
>> > Tue Oct 18 11:00:31 2011 [DiM][D]: Live-migrating VM 44
>> > Tue Oct 18 11:00:31 2011 [ReM][D]: VirtualMachineInfo method invoked
>> >
>> > 4)the end situation is:
>> > one-44 is in MIGRATE state for opennebula (there's no timeout paremeter
>> set
>> > for the virsh live-migrate so it will be there forever (?))
>> >
>> > root at node3:# virsh list
>> >  Id Nombre               Estado
>> > ----------------------------------
>> >
>> > root at node2:# virsh list
>> >  Id Nombre               Estado
>> > ----------------------------------
>> >   2 one-47               ejecutando
>> >   3 one-44               ejecutando
>> >
>> >
>> > /var/log/libvirt/qemu/one-44.log is empty in both nodes (node2 and
>> node3).
>> >
>> > My question is:
>> >
>> > i)How can I stop the live migration from the open nebula view so it does
>> not
>> > lose the whole picture of the cloud and it keeps consistency?
>> > ii)is it safe to restart node2 or node3?
>> >
>> > Thank you in advance for any hint on this issue.
>> >
>> > Samuel.
>> > On 18 October 2011 11:58, samuel <samu60 at gmail.com> wrote:
>> >>
>> >> hi all,
>> >>
>> >> I'm having an issue with live migration.T here was a running instance
>> on a
>> >> node that had a qemu segfault (i've noticed afterwards because the
>> instances
>> >> were working).I've tried to live migrate the instance to another node
>> >> without problems but the instance remains in MIGRATE state "forever".
>> >> *is there any method to stope the live migration?
>> >> *if I restart the node with a qemu segfault, will the instances run ok
>> >> again? They have been running but the communication between opennebula
>> and
>> >> KVM is broken so I'm not sure whether the cloud will keep consistency.
>> I
>> >> think I read that if the name of the instance is the same and the node
>> is
>> >> the same, opennebula will keep consistency.
>> >>
>> >> Can anyone help me, please?
>> >>
>> >> Thanks in advance,.
>> >> Samuel.
>> >>
>> >
>> >
>> > _______________________________________________
>> > Users mailing list
>> > Users at lists.opennebula.org
>> > http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>> >
>> >
>>
>>
>>
>> --
>> Javier Fontán Muiños
>> Project Engineer
>> OpenNebula Toolkit | opennebula.org
>>
>
>
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