Thanks guys, Useful info - we'll see how we go. I expect the main issue blocking a cloud-wide upgrade will be forwards live-migration of existing instances.
Cheers, ~B On 3 October 2013 13:04, Michael Lowe <[email protected]> wrote: > FWIW: I use a qemu 1.4.2 that I built with a debian package upgrade script > and the stock libvirt from raring. > > > > > On Oct 2, 2013, at 10:59 PM, Josh Durgin <[email protected]> > wrote: > > > >> On 10/02/2013 06:26 PM, Blair Bethwaite wrote: > >> Josh, > >> > >>> On 3 October 2013 10:36, Josh Durgin <[email protected]> wrote: > >>> The version base of qemu in precise has the same problem. It only > >>> affects writeback caching. > >>> > >>> You can get qemu 1.5 (which fixes the issue) for precise from ubuntu's > >>> cloud archive. > >> > >> Thanks for the pointer! I had not realised there were newer than 1.0 > >> qemu-kvm packages available anywhere for Precise. We'll definitely look > >> into that for other reasons too, especially better live-migration. > >> > >> I know it's not specifically Ceph related, but are you aware of any > >> problems with these against Grizzly? > > > > I'm not aware of any. libvirt maintains a stable interface so it > > shouldn't be an issue to use newer versions of qemu and libvirt > > with older versions of openstack. If you upgrade qemu, you may > > need the newer libvirt in the cloud archive as well. > > > > Josh > > _______________________________________________ > > ceph-users mailing list > > [email protected] > > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > -- Cheers, ~Blairo
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