[one-users] cancel live migration in progress

samuel samu60 at gmail.com
Tue Oct 18 05:34:21 PDT 2011

I add more information so you can follow the steps taken and the final

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

Tue Oct 18 11:00:31 2011 [LCM][I]: New VM state is MIGRATE

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.

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.
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