[ovirt-users] live migration with openvswitch

[Michal Skrivanek]

> On 09 Sep 2016, at 13:09, Edward Haas <ehaas at redhat.com> wrote:
> 
> 
> 
> On Thu, Sep 8, 2016 at 11:27 AM, Pavel Levshin <lpk at 581.spb.su <mailto:lpk at 581.spb.su>> wrote:
> Hi.
> 
> I'm trying to learn Ovirt 4 and have a problem with it.
> 
> My cluster consists of 3 nodes. I use Openvswitch for network connectivity. I have a HostedEngine and one additional VM in the cluster.
> 
> When I try to migrate the VM to another node, it fails. From vdsm and libvirtd logs I see that proper network interface on destination node cannot be found. Libvirt tries to find Openvswitch bridge with name like "vdsmbr_AOYiPtcT". It exists on source node, but it is unique on every node, because it contains random part. Additionally, it changes on every reboot.
> 
> How this is supposed to work?
> 
> --
> Pavel Levshin
> 
> 
> 
> Hi Pavel,
> 
> VM migration is supported on the master branch, however it has not been ported to 4.0 yet.

> You can either build VDSM from source (from master branch) or try to apply this patch on what you have:
> https://gerrit.ovirt.org/#/c/59645 <https://gerrit.ovirt.org/#/c/59645>

That’s quite a horrible solution right now. I certainly would not like to see it in 4.0 (given the hacks around display). 
Do we have a bug/plan to improve it?

Thanks,
michal

> 
> (note that you'll need to restart vdsm service for this to take affect)
> 
> Thanks,
> Edy.
> 
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