[Openstack-operators] [nova] Can we bump MIN_LIBVIRT_VERSION to 1.2.2 in Liberty?
sgordon at redhat.com
Sun May 17 20:28:56 UTC 2015
----- Original Message -----
> From: "Jesse Keating" <jlk at bluebox.net>
> To: "Tim Bell" <Tim.Bell at cern.ch>
> I'd imagine the use of a Software Collection that includes a newer python
> for the OpenStack packages, or RHOSP, being purpose built for OpenStack,
> will take the plunge and upgrade the system python version.
> - jlk
Doing it using SCLs certainly would not be impossible, but it's not something anyone is actively working on as far as I know. From a RHEL-OSP point of view RHEL-OSP 5 based on Icehouse was the transition release where both RHEL 6 and RHEL 7 hosts were supported, subsequent releases (e.g. RHEL-OSP 6 based on Juno) only support RHEL 7 hosts. RHEL-OSP 5 has a 3 year lifecycle from date of release though so we expect at least some users will remain on this combination for quite some time yet.
As Tim mentioned there was a collaborative effort in the RDO community project to endeavor to extend support for EL6 into the Juno-based release, I'd expect further discussion of where next in the RDO community meetup on Thursday at 9:50 AM. You can find the event in sched.org here:
> On Fri, May 15, 2015 at 6:46 PM, Tim Bell <Tim.Bell at cern.ch> wrote:
> > I¹m not seeing an easy solution other than to migrate to v7 in the longer
> > termŠ we¹ve worked with RDO to get the packages back ported for Juno for
> > v6 but with python pre-reqs this is going to get more and more difficult.
> > It is one of those regular scenarios we encounter where neither staying
> > still or moving forward are particularly attractive.
> > It makes me wonder how RHOSP will be supporting these environments (or is
> > the commitment to keep an OpenStack release working for a period of time
> > rather than guaranteeing that you do not need to upgrade the OS ?)Š
> > Tim
> > On 5/15/15, 12:04 PM, "Daniel P. Berrange" <berrange at redhat.com> wrote:
> > >On Fri, May 15, 2015 at 06:25:48AM +0000, Tim Bell wrote:
> > >>
> > >> What are the benefits of upping the minimum libvirt ?
> > >>
> > >> We've got 3,200 hypervisors still running v6 with a plan to
> > >> gradually migrate to 7 but this does take some time. We'll
> > >> see with RDO this week as to how/if we can get something
> > >> going with SCL on v6.
> > >
> > >Tim, if you can't get Python 2.7 from SCL working acceptably,
> > >what would be your fallback approach ? Would you try to patch
> > >Nova to work on Python 2.6 again, or would you simply delay
> > >updating Nova until you have v7 hosts to run on ?
> > >
> > >Likewise if we were to decide to drop support for libvrt in
> > >v6 from Nova, how would you imagine dealing with that ? Would
> > >you just re-add the compat code we removed from Nova to make
> > >it work with old libvirt again ?
> > >
> > >Regards,
> > >Daniel
> > >--
> > >|: http://berrange.com -o-
> > >http://www.flickr.com/photos/dberrange/ :|
> > >|: http://libvirt.org -o-
> > >http://virt-manager.org :|
> > >|: http://autobuild.org -o-
> > >http://search.cpan.org/~danberr/ :|
> > >|: http://entangle-photo.org -o-
> > >http://live.gnome.org/gtk-vnc :|
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Steve Gordon, RHCE
Sr. Technical Product Manager,
Red Hat Enterprise Linux OpenStack Platform
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