Hi Dinu,
Initial tests for me using Ubuntu's 2013.2-0ubuntu1~cloud0 indicate that
live migrations do not work when using libvirt_images_type=rbd ("Live
migration can not be used without shared storage.") I'll need to dig
through LP to see if this has since been addressed.
On a side note, live migrations now appear to work for me when booting
instances from a cinder volume.
-Matt
On Tue, Nov 12, 2013 at 11:44 PM, Dinu Vlad <dinuvla...@gmail.com> wrote:
> Out of curiosity - can you live-migrate instances with this setup?
>
>
>
> On Nov 12, 2013, at 10:38 PM, Dmitry Borodaenko <dborodae...@mirantis.com>
> wrote:
>
> > And to answer my own question, I was missing a meaningful error
> > message: what the ObjectNotFound exception I got from librados didn't
> > tell me was that I didn't have the images keyring file in /etc/ceph/
> > on my compute node. After 'ceph auth get-or-create client.images >
> > /etc/ceph/ceph.client.images.keyring' and reverting images caps back
> > to original state, it all works!
> >
> > On Tue, Nov 12, 2013 at 12:19 PM, Dmitry Borodaenko
> > <dborodae...@mirantis.com> wrote:
> >> I can get ephemeral storage for Nova to work with RBD backend, but I
> >> don't understand why it only works with the admin cephx user? With a
> >> different user starting a VM fails, even if I set its caps to 'allow
> >> *'.
> >>
> >> Here's what I have in nova.conf:
> >> libvirt_images_type=rbd
> >> libvirt_images_rbd_pool=images
> >> rbd_secret_uuid=fd9a11cc-6995-10d7-feb4-d338d73a4399
> >> rbd_user=images
> >>
> >> The secret UUID is defined following the same steps as for Cinder and
> Glance:
> >> http://ceph.com/docs/master/rbd/libvirt/
> >>
> >> BTW rbd_user option doesn't seem to be documented anywhere, is that a
> >> documentation bug?
> >>
> >> And here's what 'ceph auth list' tells me about my cephx users:
> >>
> >> client.admin
> >> key: AQCoSX1SmIo0AxAAnz3NffHCMZxyvpz65vgRDg==
> >> caps: [mds] allow
> >> caps: [mon] allow *
> >> caps: [osd] allow *
> >> client.images
> >> key: AQC1hYJS0LQhDhAAn51jxI2XhMaLDSmssKjK+g==
> >> caps: [mds] allow
> >> caps: [mon] allow *
> >> caps: [osd] allow *
> >> client.volumes
> >> key: AQALSn1ScKruMhAAeSETeatPLxTOVdMIt10uRg==
> >> caps: [mon] allow r
> >> caps: [osd] allow class-read object_prefix rbd_children, allow
> >> rwx pool=volumes, allow rx pool=images
> >>
> >> Setting rbd_user to images or volumes doesn't work.
> >>
> >> What am I missing?
> >>
> >> Thanks,
> >>
> >> --
> >> Dmitry Borodaenko
> >
> >
> >
> > --
> > Dmitry Borodaenko
> > _______________________________________________
> > ceph-users mailing list
> > ceph-users@lists.ceph.com
> > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
>
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