Re: two osd stack on peereng after start osd to recovery

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Ver. 0.56.6
Hmm, osd not died, 1 or more pg stack on peereng on it.

Regards
Dominik

On Jun 28, 2013 11:28 PM, "Sage Weil" <sage@xxxxxxxxxxx> wrote:
On Sat, 29 Jun 2013, Andrey Korolyov wrote:
> There is almost same problem with the 0.61 cluster, at least with same
> symptoms. Could be reproduced quite easily - remove an osd and then
> mark it as out and with quite high probability one of neighbors will
> be stuck at the end of peering process with couple of peering pgs with
> primary copy on it. Such osd process seems to be stuck in some kind of
> lock, eating exactly 100% of one core.

Which version?
Can you attach with gdb and get a backtrace to see what it is chewing on?

Thanks!
sage


>
> On Thu, Jun 13, 2013 at 8:42 PM, Gregory Farnum <greg@xxxxxxxxxxx> wrote:
> > On Thu, Jun 13, 2013 at 6:33 AM, S?awomir Skowron <szibis@xxxxxxxxx> wrote:
> >> Hi, sorry for late response.
> >>
> >> https://docs.google.com/file/d/0B9xDdJXMieKEdHFRYnBfT3lCYm8/view
> >>
> >> Logs in attachment, and on google drive, from today.
> >>
> >> https://docs.google.com/file/d/0B9xDdJXMieKEQzVNVHJ1RXFXZlU/view
> >>
> >> We have such problem today. And new logs are on google drive with today date.
> >>
> >> Strange is that problematic osd.71 have about 10-15%, more space used
> >> then other osd in cluster.
> >>
> >> Today in one hour osd.71 fails 3 times in mon log, and after third
> >> recovery has been stuck, and many 500 errors appears in http layer on
> >> top of rgw. When it's stuck, restarting osd71, osd.23, and osd.108,
> >> all from stucked pg, helps, but i run even repair on this osd, just in
> >> case.
> >>
> >> I have some theory, that on this pg is rgw index of objects, or one of
> >> osd in this pg, have some problems with local filesystem or drive
> >> bellow (raid controller reports nothing about that), but i do not see
> >> any problem in system.
> >>
> >> How can we find in which pg/osd index of objects in rgw bucket exist ??
> >
> > You can find the location of any named object by grabbing the OSD map
> > from the cluster and using the osdmaptool: "osdmaptool <mapfile>
> > --test-map-object <objname> --pool <poolid>".
> >
> > You're not providing any context for your issue though, so we really
> > can't help. What symptoms are you observing?
> > -Greg
> > Software Engineer #42 @ http://inktank.com | http://ceph.com
> > _______________________________________________
> > ceph-users mailing list
> > ceph-users@xxxxxxxxxxxxxx
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