On Thu, Nov 14, 2013 at 9:12 PM, Jens-Christian Fischer < jens-christian.fisc...@switch.ch> wrote:
> We have migration working partially - it works through Horizon (to a > random host) and sometimes through the CLI. > random host? Do you mean cold-migration? Live-migration should be specified destination host. > > We are using the nova fork by Josh Durgin > https://github.com/jdurgin/nova/commits/havana-ephemeral-rbd - are there > more patches that need to be integrated? > I hope I can release or push commits to this branch contains live-migration, incorrect filesystem size fix and ceph-snapshort support in a few days. > > cheers > jc > > > -- > SWITCH > Jens-Christian Fischer, Peta Solutions > Werdstrasse 2, P.O. Box, 8021 Zurich, Switzerland > phone +41 44 268 15 15, direct +41 44 268 15 71 > jens-christian.fisc...@switch.ch > http://www.switch.ch > > http://www.switch.ch/socialmedia > > On 14.11.2013, at 13:18, Haomai Wang <haomaiw...@gmail.com> wrote: > > Yes, we still need a patch to make live-migration work. > > > On Thu, Nov 14, 2013 at 8:12 PM, Matt Thompson <watering...@gmail.com>wrote: > >> 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 >>> >>> _______________________________________________ >>> ceph-users mailing list >>> ceph-users@lists.ceph.com >>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >>> >> >> >> _______________________________________________ >> ceph-users mailing list >> ceph-users@lists.ceph.com >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >> >> > > > -- > > Best Regards, > > Wheat > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > > -- Best Regards, Wheat
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