[ceph-users] Is the 12.2.1 really stable? Anybody have production cluster with Luminous Bluestore?

Jack ceph at jack.fr.eu.org
Thu Nov 16 06:21:44 PST 2017

My cluster (55 OSDs) runs 12.2.x since the release, and bluestore too
All good so far

On 16/11/2017 15:14, Konstantin Shalygin wrote:
> Hi cephers.
> Some thoughts...
> At this time my cluster on Kraken 11.2.0 - works smooth with FileStore
> and RBD only.
> I want upgrade to Luminous 12.2.1 and go to Bluestore because this
> cluster want grows double with new disks, so is best opportunity migrate
> to Bluestore.
> In ML I was found two problems:
> 1. Increased memory usage, should be fixed in upstream
> (http://lists.ceph.com/pipermail/ceph-users-ceph.com/2017-October/021676.html).
> 2. OSD drops and goes cluster offline
> (http://lists.ceph.com/pipermail/ceph-users-ceph.com/2017-November/022494.html).
> Don't know this Bluestore or FileStore OSD'.s.
> If the first case I can safely survive - hosts has enough memory to go
> to Bluestore and with the growing I can wait until the next stable release.
> That second case really scares me. As I understood clusters with this
> problem for now not in production.
> By this point I have completed all the preparations for the update and
> now I need to figure out whether I should update to 12.2.1 or wait for
> the next stable release, because my cluster is in production and I can't
> fail. Or I can upgrade and use FileStore until next release, this is
> acceptable for me.
> Thanks.
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