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 > _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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