[Nova] [RBD] Copy-on-write cloning for RBD-backed disks

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Hi Dmitry,

Will you please share with us how things went on the meeting?

Many thanks,
Benjamin



> -----Original Message-----
> From: ceph-users [mailto:ceph-users-bounces at lists.ceph.com] On Behalf Of
> Dmitry Borodaenko
> Sent: Wednesday, July 16, 2014 11:18 PM
> To: ceph-users at lists.ceph.com
> Cc: OpenStack Development Mailing List (not for usage questions)
> Subject: [ceph-users] [Nova] [RBD] Copy-on-write cloning for RBD-backed
> disks
> 
> I've got a bit of good news and bad news about the state of landing the
> rbd-ephemeral-clone patch series for Nova in Juno.
> 
> The good news is that the first patch in the series
> (https://review.openstack.org/91722 fixing a data loss inducing bug with
> live migrations of instances with RBD backed ephemeral drives) was
> merged yesterday.
> 
> The bad news is that after 2 months of sitting in review queue and only
> getting its first a +1 from a core reviewer on the spec approval freeze
> day, the spec for the blueprint rbd-clone-image-handler
> (https://review.openstack.org/91486) wasn't approved in time. Because of
> that, today the blueprint was rejected along with the rest of the
> commits in the series, even though the code itself was reviewed and
> approved a number of times.
> 
> Our last chance to avoid putting this work on hold for yet another
> OpenStack release cycle is to petition for a spec freeze exception in
> the next Nova team meeting:
> https://wiki.openstack.org/wiki/Meetings/Nova
> 
> If you're using Ceph RBD as backend for ephemeral disks in Nova and are
> interested this patch series, please speak up. Since the biggest concern
> raised about this spec so far has been lack of CI coverage, please let
> us know if you're already using this patch series with Juno, Icehouse,
> or Havana.
> 
> I've put together an etherpad with a summary of where things are with
> this patch series and how we got here:
> https://etherpad.openstack.org/p/nova-ephemeral-rbd-clone-status
> 
> Previous thread about this patch series on ceph-users ML:
> http://lists.ceph.com/pipermail/ceph-users-ceph.com/2014-
> March/028097.html
> 
> --
> Dmitry Borodaenko
> _______________________________________________
> ceph-users mailing list
> ceph-users at lists.ceph.com
> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com


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