[openstack-dev] [nova] Feature Freeze Exception Request for Quiesce boot from volume instances

Daniel P. Berrange berrange at redhat.com
Tue Feb 10 10:12:38 UTC 2015


On Fri, Feb 06, 2015 at 10:20:04PM +0000, Tomoki Sekiyama wrote:
> Hello,
> 
> I'd like to request a feature freeze exception for the change
>   https://review.openstack.org/#/c/138795/ .
> 
> This patch makes live volume-boot instance snapshots consistent by
> quiescing instances before snapshotting. Quiescing for image-boot
> instances are already merged in the libvirt driver, and this is a
> complementary part for volume-boot instances.
> 
> 
> Nikola Dipanov and Daniel Berrange actively reviewed the patch and I hope
> it is ready now (+1 from Nikola with a comment that he is waiting for the
> FFE process at this point so no +2s).
> Please consider approving this FFE.

I'm happy to sponsor this one having given it multiple reviews

You could probably even argue this "feature" is in fact a bug fix since
it fixes the problem of inconsistent snapshots which can result in guest
application data corruption in the worst case.

Regards,
Daniel
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