Open Stack

On 04/24/2016 10:15 AM, Matt Riedemann wrote:
>>
> 
> To clarify, live snapshots aren't disabled by default because they don't
> work, it's because at least with libvirt 1.2.2 and QEMU 2.0 (which is
> what we test against in the gate), we'd hit a lot of failures (about 25%
> failure rate with the devstack/tempest jobs) when running live snapshot,
> so we suspect there are concurrency issues when running live snapshot on
> a compute along with other operations at the same time (the CI jobs run
> 4 tests concurrently on a single-node devstack).
> 
> This might not be an issue on newer libvirt/QEMU, we'll see when we
> start testing with Ubuntu 16.04 nodes.

Correct. I tried to build a clarifying comment in the config option here
(as I realized it wasn't described all that well in docs) -
https://review.openstack.org/#/c/309629/

	-Sean

-- 
Sean Dague
http://dague.net

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