[openstack-dev] [nova][Libvirt] Disabling nova-compute when a connection to libvirt is broken.

Joe Gordon joe.gordon0 at gmail.com
Sat Oct 12 00:37:13 UTC 2013


On Thu, Oct 10, 2013 at 4:47 AM, Vladik Romanovsky <
vladik.romanovsky at enovance.com> wrote:

> Hello everyone,
>
> I have been recently working on a migration bug in nova (Bug #1233184).
>
> I noticed that compute service remains available, even if a connection to
> libvirt is broken.
> I thought that it might be better to disable the service (using
> conductor.manager.update_service()) and resume it once it's connected again.
> (maybe keep the host_stats periodic task running or create a dedicated
> one, once it succeed, the service will become available again).
> This way new vms wont be scheduled nor migrated to the disconnected host.
>
> Any thoughts on that?
>

Sounds reasonable to me. If we can't reach libvirt there isn't much that
nova-compute can / should do.


> Is anyone already working on that?
>
> Thank you,
> Vladik
>
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