[openstack-dev] [nova][libvirt] Block migrations and Cinder volumes

Daniel P. Berrange berrange at redhat.com
Wed Mar 18 18:11:51 UTC 2015


On Wed, Mar 18, 2015 at 10:59:19AM -0700, Joe Gordon wrote:
> On Wed, Mar 18, 2015 at 3:09 AM, Daniel P. Berrange <berrange at redhat.com>
> wrote:
> 
> > On Wed, Mar 18, 2015 at 08:33:26AM +0100, Thomas Herve wrote:
> > > > Interesting bug.  I think I agree with you that there isn't a good
> > solution
> > > > currently for instances that have a mix of shared and not-shared
> > storage.
> > > >
> > > > I'm curious what Daniel meant by saying that marking the disk
> > shareable is
> > > > not
> > > > as reliable as we would want.
> > >
> > > I think this is the bug I reported here:
> > https://bugs.launchpad.net/nova/+bug/1376615
> > >
> > > My initial approach was indeed to mark the disks are shareable: the
> > patch (https://review.openstack.org/#/c/125616/) has comments around the
> > issues, mainly around I/Ocache and SELinux isolation being disabled.
> >
> > Yep, those are both show stopper issues. The only solution is to fix the
> > libvirt API for this first.
> >
> 
> Thanks for the clarification, is there a  bug tracking this in libvirt
> already?

Actually I don't think there is one, so feel free to file one


Regards,
Daniel
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