I think the unfound object on repair is fixed by d51806f5b330d5f112281fbb95ea6addf994324e (not in hammer yet). I opened http://tracker.ceph.com/issues/15002 for the backport and to make sure it's covered in ceph-qa-suite. No idea at this time why the objects are disappearing though. -Sam On Mon, Mar 7, 2016 at 1:57 PM, Samuel Just <sjust@xxxxxxxxxx> wrote: > The one just scrubbed and now inconsistent. > -Sam > > On Mon, Mar 7, 2016 at 1:57 PM, Jeffrey McDonald <jmcdonal@xxxxxxx> wrote: >> Do you want me to enable this for the pg already with unfound objects or the >> placement group just scrubbed and now inconsistent? >> Jeff >> >> On Mon, Mar 7, 2016 at 3:54 PM, Samuel Just <sjust@xxxxxxxxxx> wrote: >>> >>> Can you enable >>> >>> debug osd = 20 >>> debug filestore = 20 >>> debug ms = 1 >>> >>> on all osds in that PG, rescrub, and convey to us the resulting logs? >>> -Sam >>> >>> On Mon, Mar 7, 2016 at 1:36 PM, Jeffrey McDonald <jmcdonal@xxxxxxx> wrote: >>> > Here is a PG which just went inconsistent: >>> > >>> > pg 70.459 is active+clean+inconsistent, acting [307,210,273,191,132,450] >>> > >>> > Attached is the result of a pg query on this. I will wait for your >>> > feedback before issuing a repair. >>> > >>> > From what I read, the inconsistencies are more likely the result of ntp, >>> > but >>> > all nodes have the local ntp master and all are showing sync. >>> > >>> > Regards, >>> > Jeff >>> > >>> > On Mon, Mar 7, 2016 at 3:15 PM, Gregory Farnum <gfarnum@xxxxxxxxxx> >>> > wrote: >>> >> >>> >> [ Keeping this on the users list. ] >>> >> >>> >> Okay, so next time this happens you probably want to do a pg query on >>> >> the PG which has been reported as dirty. I can't help much beyond >>> >> that, but hopefully Kefu or David will chime in once there's a little >>> >> more for them to look at. >>> >> -Greg >>> >> >>> >> On Mon, Mar 7, 2016 at 1:00 PM, Jeffrey McDonald <jmcdonal@xxxxxxx> >>> >> wrote: >>> >> > Hi Greg, >>> >> > >>> >> > I'm running the ceph version hammer, >>> >> > ceph version 0.94.5 (9764da52395923e0b32908d83a9f7304401fee43) >>> >> > >>> >> > The hardware migration was performed by just setting the crush map to >>> >> > zero >>> >> > for the OSD we wanted to retire. The system was performing poorly >>> >> > with >>> >> > these older OSDs and we had a difficult time maintaining stability of >>> >> > the >>> >> > system. The old OSDs are still there but all of the data is now >>> >> > migrated >>> >> > to new and/or existing hardware. >>> >> > >>> >> > Thanks, >>> >> > Jeff >>> >> > >>> >> > >>> >> > >>> >> > >>> >> > >>> >> > On Mon, Mar 7, 2016 at 2:56 PM, Gregory Farnum <gfarnum@xxxxxxxxxx> >>> >> > wrote: >>> >> >> >>> >> >> On Mon, Mar 7, 2016 at 12:07 PM, Jeffrey McDonald <jmcdonal@xxxxxxx> >>> >> >> wrote: >>> >> >> > Hi, >>> >> >> > >>> >> >> > For a while, we've been seeing inconsistent placement groups on >>> >> >> > our >>> >> >> > erasure >>> >> >> > coded system. The placement groups go from a state of >>> >> >> > active+clean >>> >> >> > to >>> >> >> > active+clean+inconsistent after a deep scrub: >>> >> >> > >>> >> >> > >>> >> >> > 2016-03-07 13:45:42.044131 7f385d118700 -1 log_channel(cluster) >>> >> >> > log >>> >> >> > [ERR] : >>> >> >> > 70.320s0 deep-scrub stat mismatch, got 21446/21428 objects, 0/0 >>> >> >> > clones, >>> >> >> > 21446/21428 dirty, 0/0 omap, 0/0 hit_set_archive, 0/0 whiteouts, >>> >> >> > 64682334170/64624353083 bytes,0/0 hit_set_archive bytes. >>> >> >> > 2016-03-07 13:45:42.044416 7f385d118700 -1 log_channel(cluster) >>> >> >> > log >>> >> >> > [ERR] : >>> >> >> > 70.320s0 deep-scrub 18 missing, 0 inconsistent objects >>> >> >> > 2016-03-07 13:45:42.044464 7f385d118700 -1 log_channel(cluster) >>> >> >> > log >>> >> >> > [ERR] : >>> >> >> > 70.320 deep-scrub 73 errors >>> >> >> > >>> >> >> > So I tell the placement group to perform a repair: >>> >> >> > >>> >> >> > 2016-03-07 13:49:26.047177 7f385d118700 0 log_channel(cluster) >>> >> >> > log >>> >> >> > [INF] : >>> >> >> > 70.320 repair starts >>> >> >> > 2016-03-07 13:49:57.087291 7f3858b0a700 0 -- 10.31.0.2:6874/13937 >>> >> >> > >> >>> >> >> > 10.31.0.6:6824/8127 pipe(0x2e578000 sd=697 :6874 >>> >> >> > >>> >> >> > The repair finds missing shards and repairs them, but then I have >>> >> >> > 18 >>> >> >> > 'unfound objects' : >>> >> >> > >>> >> >> > >>> >> >> > 2016-03-07 13:51:28.467590 7f385d118700 -1 log_channel(cluster) >>> >> >> > log >>> >> >> > [ERR] : >>> >> >> > 70.320s0 repair stat mismatch, got 21446/21428 objects, 0/0 >>> >> >> > clones, >>> >> >> > 21446/21428 dirty, 0/0 omap, 0/0 hit_set_archive, 0/0 whiteouts, >>> >> >> > 64682334170/64624353083 bytes,0/0 hit_set_archive bytes. >>> >> >> > 2016-03-07 13:51:28.468358 7f385d118700 -1 log_channel(cluster) >>> >> >> > log >>> >> >> > [ERR] : >>> >> >> > 70.320s0 repair 18 missing, 0 inconsistent objects >>> >> >> > 2016-03-07 13:51:28.469431 7f385d118700 -1 log_channel(cluster) >>> >> >> > log >>> >> >> > [ERR] : >>> >> >> > 70.320 repair 73 errors, 73 fixed >>> >> >> > >>> >> >> > >>> >> >> > I've traced one of the unfound objects all the way through the >>> >> >> > system >>> >> >> > and >>> >> >> > I've found that they are not really lost. I can fail over the >>> >> >> > osd >>> >> >> > and >>> >> >> > recover the files. This is happening quite regularly now after a >>> >> >> > large >>> >> >> > migration of data from old hardware to new(migration is now >>> >> >> > complete). >>> >> >> > >>> >> >> > The system sets the PG into 'recovery', but we've seen the system >>> >> >> > in >>> >> >> > a >>> >> >> > recovering state for many days. Should we just be patient or do >>> >> >> > we >>> >> >> > need >>> >> >> > to dig further into the issue? >>> >> >> >>> >> >> You may need to dig into this more, although I'm not sure what the >>> >> >> issue is likely to be. What version of Ceph are you running? How did >>> >> >> you do this hardware migration? >>> >> >> -Greg >>> >> >> >>> >> >> > >>> >> >> > >>> >> >> > pg 70.320 is stuck unclean for 704.803040, current state >>> >> >> > active+recovering, >>> >> >> > last acting [277,101,218,49,304,412] >>> >> >> > pg 70.320 is active+recovering, acting [277,101,218,49,304,412], >>> >> >> > 18 >>> >> >> > unfound >>> >> >> > >>> >> >> > There is no indication of any problems with down OSDs or network >>> >> >> > issues >>> >> >> > with >>> >> >> > OSDs. >>> >> >> > >>> >> >> > Thanks, >>> >> >> > Jeff >>> >> >> > >>> >> >> > >>> >> >> > -- >>> >> >> > >>> >> >> > Jeffrey McDonald, PhD >>> >> >> > Assistant Director for HPC Operations >>> >> >> > Minnesota Supercomputing Institute >>> >> >> > University of Minnesota Twin Cities >>> >> >> > 599 Walter Library email: jeffrey.mcdonald@xxxxxxxxxxx >>> >> >> > 117 Pleasant St SE phone: +1 612 625-6905 >>> >> >> > Minneapolis, MN 55455 fax: +1 612 624-8861 >>> >> >> > >>> >> >> > >>> >> >> > >>> >> >> > _______________________________________________ >>> >> >> > ceph-users mailing list >>> >> >> > ceph-users@xxxxxxxxxxxxxx >>> >> >> > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >>> >> >> > >>> >> > >>> >> > >>> >> > >>> >> > >>> >> > -- >>> >> > >>> >> > Jeffrey McDonald, PhD >>> >> > Assistant Director for HPC Operations >>> >> > Minnesota Supercomputing Institute >>> >> > University of Minnesota Twin Cities >>> >> > 599 Walter Library email: jeffrey.mcdonald@xxxxxxxxxxx >>> >> > 117 Pleasant St SE phone: +1 612 625-6905 >>> >> > Minneapolis, MN 55455 fax: +1 612 624-8861 >>> >> > >>> >> > >>> > >>> > >>> > >>> > >>> > -- >>> > >>> > Jeffrey McDonald, PhD >>> > Assistant Director for HPC Operations >>> > Minnesota Supercomputing Institute >>> > University of Minnesota Twin Cities >>> > 599 Walter Library email: jeffrey.mcdonald@xxxxxxxxxxx >>> > 117 Pleasant St SE phone: +1 612 625-6905 >>> > Minneapolis, MN 55455 fax: +1 612 624-8861 >>> > >>> > >>> > >>> > _______________________________________________ >>> > ceph-users mailing list >>> > ceph-users@xxxxxxxxxxxxxx >>> > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >>> > >> >> >> >> >> -- >> >> Jeffrey McDonald, PhD >> Assistant Director for HPC Operations >> Minnesota Supercomputing Institute >> University of Minnesota Twin Cities >> 599 Walter Library email: jeffrey.mcdonald@xxxxxxxxxxx >> 117 Pleasant St SE phone: +1 612 625-6905 >> Minneapolis, MN 55455 fax: +1 612 624-8861 >> >> _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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