[openstack-dev] [nova][infra] Ability to run newer QEMU in Gate jobs

Daniel P. Berrange berrange at redhat.com
Tue Jan 19 18:11:35 UTC 2016

On Tue, Jan 19, 2016 at 05:47:58PM +0000, Jeremy Stanley wrote:
> On 2016-01-19 18:32:38 +0100 (+0100), Kashyap Chamarthy wrote:
> [...]
> > Matt Riedemann tells me on IRC that multi-node live migration job is
> > currently Ubuntu only, and to get a newer QEMU, it has to be added to
> > Ubuntu Cloud Archive.
> [...]
> As discussed recently on another thread[1], we're not currently
> using UCA in jobs either. We can discuss it, but generally by the
> time people start actively wanting newer whatever we're only a few
> months away from the next LTS anyway. In this case I have hopes that
> in a few months we'll be able to start running jobs on Ubuntu 16.04
> LTS, which looks like it's going to ship with QEMU 2.5.

We'll almost certainly need to be able to test QEMU 2.6 in the Nxxxx
release cycle, since that'll (hopefully) include support for TLS
encrypted migration & nbd traffic.  So I don't think waiting for
LTS releases is a viable strategy in general - we'll need UCA to
be available for at least some set of jobs we run. Alternatively
stick with LTS release for Ubuntu, and run other jobs with Fedora
and the virt-preview repository to give us coverage of the cutting
edge QEMU/libvirt stack.

> Alternatively, look into getting a live migration job running on
> CentOS 7 or Fedora 23 if it can't wait until after Mitaka.

CentOS 7 might be a nice target, since I think it'll likely have
more reliable migration support at the QEMU level than any distros
shipping close-to-upstream QEMU versions.

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