The log says that the domain already exists, so either it was restarted
outside OpenNebula when you reconnect the host or VM 6 was not actually
moved from node2 or you are somehow reusing ID's;

On Sun Feb 08 2015 at 9:03:35 AM clmyuan <clm_t...@hotmail.com> wrote:

>  Hi All
>
> I have one manager server and nfs share /var/lib/one,two host node,all
> server installed 4.10.2.
>
> I deploy and running a vm on node2,use sunstone migrate live vm node2 to
> node1 and back to node2 ,These operations do not have a problem.
>
> but i disconnect node2 and migrate live vm to node1,When node2 reconnect
> after´╝îmigrating from node1 to node2 does not correctly completed,Below is
>  the log information´╝Ü
>
> Sun Feb  8 23:47:07 2015 [Z0][LCM][I]: New VM state is MIGRATE
> Sun Feb  8 23:47:07 2015 [Z0][VMM][I]: Successfully execute transfer
> manager driver operation: tm_premigrate.
> Sun Feb  8 23:47:07 2015 [Z0][VMM][I]: ExitCode: 0
> Sun Feb  8 23:47:07 2015 [Z0][VMM][I]: Successfully execute network driver
> operation: pre.
> Sun Feb  8 23:47:07 2015 [Z0][VMM][I]: Command execution fail:
> /var/tmp/one/vmm/kvm/migrate 'one-6' 'node2' 'node1' 6 node1
> Sun Feb  8 23:47:07 2015 [Z0][VMM][E]: migrate: Command "virsh --connect
> qemu:///system migrate --live one-6 qemu+ssh://node2/system" failed: error:
> operation failed: domain 'one-6' already exists with uuid
> 15835de7-671d-497e-b099-02119cd81668
> Sun Feb  8 23:47:07 2015 [Z0][VMM][E]: Could not migrate one-6 to node2
> Sun Feb  8 23:47:07 2015 [Z0][VMM][I]: ExitCode: 1
> Sun Feb  8 23:47:07 2015 [Z0][VMM][I]: Failed to execute virtualization
> driver operation: migrate.
> Sun Feb  8 23:47:07 2015 [Z0][VMM][E]: Error live migrating VM: Could not
> migrate one-6 to node2
> Sun Feb  8 23:47:08 2015 [Z0][LCM][I]: Fail to live migrate VM. Assuming
> that the VM is still RUNNING (will poll VM).
>
> I think old VM information are not cleared. Do you have any
> suggestions,Thanks.
>
> clm
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