On Fri, Feb 20, 2015 at 3:50 AM, Luis Periquito <periquito@xxxxxxxxx> wrote: > Hi Dan, > > I remember http://tracker.ceph.com/issues/9945 introducing some issues with > running cephfs between different versions of giant/firefly. > > https://www.mail-archive.com/ceph-users@xxxxxxxxxxxxxx/msg14257.html Hmm, yeah, that's been fixed for a while but is still waiting to go out in the next point release. :( Beyond this bug, although the MDS doesn't have any new OSD dependencies that could break things, we don't test cross-version stuff like that at all except during upgrades. Some minimal testing on your side should be enough to make sure it works, but if I were you I'd try it on a test cluster first — the MDS is reporting a lot more to the monitors in Giant and Hammer than it did in Firefly, and everything should be good but there might be issues lurking in the compatibility checks there. -Greg > > So if you upgrade please be aware that you'll also have to update the > clients. > > On Fri, Feb 20, 2015 at 10:33 AM, Dan van der Ster <dan@xxxxxxxxxxxxxx> > wrote: >> >> Hi all, >> >> Back in the dumpling days, we were able to run the emperor MDS with >> dumpling OSDs -- this was an improvement over the dumpling MDS. >> >> Now we have stable firefly OSDs, but I was wondering if we can reap >> some of the recent CephFS developments by running a giant or ~hammer >> MDS with our firefly OSDs. Did anyone try that yet? >> >> Best Regards, Dan >> _______________________________________________ >> ceph-users mailing list >> ceph-users@xxxxxxxxxxxxxx >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
 |