they're all the same.....see attached.
On Mon, Mar 7, 2016 at 6:31 PM, Samuel Just <sjust@xxxxxxxxxx> wrote:
Have you confirmed the versions?
-Sam
On Mon, Mar 7, 2016 at 4:29 PM, Jeffrey McDonald <jmcdonal@xxxxxxx> wrote:
> I have one other very strange event happening, I've opened a ticket on it:
> http://tracker.ceph.com/issues/14766
>
> During this migration, OSD failed probably over 400 times while moving data
> around. We move the empty directories and restarted the OSDs. I can't
> say if this is related--I have no reason to suspect it is.
>
> Jeff
>
> On Mon, Mar 7, 2016 at 5:31 PM, Shinobu Kinjo <shinobu.kj@xxxxxxxxx> wrote:
>>
>> What could cause this kind of unexpected behaviour?
>> Any assumption??
>> Sorry for interrupting you.
>>
>> Cheers,
>> S
>>
>> On Tue, Mar 8, 2016 at 8:19 AM, Samuel Just <sjust@xxxxxxxxxx> wrote:
>> > Hmm, at the end of the log, the pg is still inconsistent. Can you
>> > attach a ceph pg query on that pg?
>> > -Sam
>> >
>> > On Mon, Mar 7, 2016 at 3:05 PM, Samuel Just <sjust@xxxxxxxxxx> wrote:
>> >> If so, that strongly suggests that the pg was actually never
>> >> inconsistent in the first place and that the bug is in scrub itself
>> >> presumably getting confused about an object during a write. The next
>> >> step would be to get logs like the above from a pg as it scrubs
>> >> transitioning from clean to inconsistent. If it's really a race
>> >> between scrub and a write, it's probably just non-deterministic, you
>> >> could set logging on a set of osds and continuously scrub any pgs
>> >> which only map to those osds until you reproduce the problem.
>> >> -Sam
>> >>
>> >> On Mon, Mar 7, 2016 at 2:44 PM, Samuel Just <sjust@xxxxxxxxxx> wrote:
>> >>> So after the scrub, it came up clean? The inconsistent/missing
>> >>> objects reappeared?
>> >>> -Sam
>> >>>
>> >>> On Mon, Mar 7, 2016 at 2:33 PM, Jeffrey McDonald <jmcdonal@xxxxxxx>
>> >>> wrote:
>> >>>> Hi Sam,
>> >>>>
>> >>>> I've done as you requested:
>> >>>>
>> >>>> pg 70.459 is active+clean+inconsistent, acting
>> >>>> [307,210,273,191,132,450]
>> >>>>
>> >>>> # for i in 307 210 273 191 132 450 ; do
>> >>>>> ceph tell osd.$i injectargs '--debug-osd 20 --debug-filestore 20
>> >>>>> --debug-ms 1'
>> >>>>> done
>> >>>> debug_osd=20/20 debug_filestore=20/20 debug_ms=1/1
>> >>>> debug_osd=20/20 debug_filestore=20/20 debug_ms=1/1
>> >>>> debug_osd=20/20 debug_filestore=20/20 debug_ms=1/1
>> >>>> debug_osd=20/20 debug_filestore=20/20 debug_ms=1/1
>> >>>> debug_osd=20/20 debug_filestore=20/20 debug_ms=1/1
>> >>>> debug_osd=20/20 debug_filestore=20/20 debug_ms=1/1
>> >>>>
>> >>>>
>> >>>> # date
>> >>>> Mon Mar 7 16:03:38 CST 2016
>> >>>>
>> >>>>
>> >>>> # ceph pg deep-scrub 70.459
>> >>>> instructing pg 70.459 on osd.307 to deep-scrub
>> >>>>
>> >>>>
>> >>>>
>> >>>> Scrub finished around
>> >>>>
>> >>>> # date
>> >>>> Mon Mar 7 16:13:03 CST 2016
>> >>>>
>> >>>>
>> >>>>
>> >>>>
>> >>>> I've tar'd+gziped the files which can be downloaded from here. The
>> >>>> logs
>> >>>> start a minute or two after today at 16:00.
>> >>>>
>> >>>>
>> >>>> https://drive.google.com/folderview?id=0Bzz8TrxFvfema2NQUmotd1BOTnM&usp=sharing
>> >>>>
>> >>>>
>> >>>> Oddly(to me anyways), this pg is now active+clean:
>> >>>>
>> >>>> # ceph pg dump | grep 70.459
>> >>>> dumped all in format plain
>> >>>> 70.459 21377 0 0 0 0 64515446306 3088 3088 active+clean 2016-03-07
>> >>>> 16:26:57.796537 279563'212832 279602:628151 [307,210,273,191,132,450]
>> >>>> 307
>> >>>> [307,210,273,191,132,450] 307 279563'212832 2016-03-07
>> >>>> 16:12:30.741984
>> >>>> 279563'212832 2016-03-07 16:12:30.741984
>> >>>>
>> >>>>
>> >>>>
>> >>>> Regards,
>> >>>> Jeff
>> >>>>
>> >>>>
>> >>>> On Mon, Mar 7, 2016 at 4:11 PM, Samuel Just <sjust@xxxxxxxxxx> wrote:
>> >>>>>
>> >>>>> 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
>> >>>>> >>
>> >>>>> >>
>> >>>>
>> >>>>
>> >>>>
>> >>>>
>> >>>> --
>> >>>>
>> >>>> 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
>>
>>
>>
>> --
>> Email:
>> shinobu@xxxxxxxxx
>> GitHub:
>> shinobu-x
>> Blog:
>> Life with Distributed Computational System based on OpenSource
>
>
>
>
> --
>
> 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
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