Nevermind on http://tracker.ceph.com/issues/14766 , OSD::remove_dir uses the right collection_list_partial. -Sam On Mon, Mar 7, 2016 at 5:26 PM, Samuel Just <sjust@xxxxxxxxxx> wrote: > Yep, just as before. Actually, do it twice (wait for 'scrubbing' to > go away each time). > -Sam > > On Mon, Mar 7, 2016 at 5:25 PM, Jeffrey McDonald <jmcdonal@xxxxxxx> wrote: >> Just to be sure I grab what you need: >> >> 1- set debug logs for the pg 70.459 >> 2 - Issue a deep-scrub ceph pg deep-scrub 70.459 >> 3- stop once the 70.459 pg goes inconsistent? >> >> Thanks, >> Jeff >> >> >> On Mon, Mar 7, 2016 at 6:52 PM, Samuel Just <sjust@xxxxxxxxxx> wrote: >>> >>> Hmm, I'll look into this a bit more tomorrow. Can you get the tree >>> structure of the 70.459 pg directory on osd.307 (find . will do fine). >>> -Sam >>> >>> On Mon, Mar 7, 2016 at 4:50 PM, Jeffrey McDonald <jmcdonal@xxxxxxx> wrote: >>> > 307 is on ceph03. >>> > Jeff >>> > >>> > On Mon, Mar 7, 2016 at 6:48 PM, Samuel Just <sjust@xxxxxxxxxx> wrote: >>> >> >>> >> Which node is osd.307 on? >>> >> -Sam >>> >> >>> >> On Mon, Mar 7, 2016 at 4:43 PM, Samuel Just <sjust@xxxxxxxxxx> wrote: >>> >> > ' I didn't see the errors in the tracker on the new nodes, but they >>> >> > were only receiving new data, not migrating it.' -- What do you mean >>> >> > by that? >>> >> > -Sam >>> >> > >>> >> > On Mon, Mar 7, 2016 at 4:42 PM, Jeffrey McDonald <jmcdonal@xxxxxxx> >>> >> > wrote: >>> >> >> The filesystem is xfs everywhere, there are nine hosts. The two >>> >> >> new >>> >> >> ceph >>> >> >> nodes 08, 09 have a new kernel. I didn't see the errors in the >>> >> >> tracker on >>> >> >> the new nodes, but they were only receiving new data, not migrating >>> >> >> it. >>> >> >> Jeff >>> >> >> >>> >> >> ceph2: Linux ceph2 3.13.0-65-generic #106-Ubuntu SMP Fri Oct 2 >>> >> >> 22:08:27 >>> >> >> UTC >>> >> >> 2015 x86_64 x86_64 x86_64 GNU/Linux >>> >> >> ceph1: Linux ceph1 3.13.0-65-generic #106-Ubuntu SMP Fri Oct 2 >>> >> >> 22:08:27 >>> >> >> UTC >>> >> >> 2015 x86_64 x86_64 x86_64 GNU/Linux >>> >> >> ceph3: Linux ceph3 3.13.0-65-generic #106-Ubuntu SMP Fri Oct 2 >>> >> >> 22:08:27 >>> >> >> UTC >>> >> >> 2015 x86_64 x86_64 x86_64 GNU/Linux >>> >> >> ceph03: Linux ceph03 3.13.0-65-generic #106-Ubuntu SMP Fri Oct 2 >>> >> >> 22:08:27 >>> >> >> UTC 2015 x86_64 x86_64 x86_64 GNU/Linux >>> >> >> ceph01: Linux ceph01 3.13.0-65-generic #106-Ubuntu SMP Fri Oct 2 >>> >> >> 22:08:27 >>> >> >> UTC 2015 x86_64 x86_64 x86_64 GNU/Linux >>> >> >> ceph02: Linux ceph02 3.13.0-65-generic #106-Ubuntu SMP Fri Oct 2 >>> >> >> 22:08:27 >>> >> >> UTC 2015 x86_64 x86_64 x86_64 GNU/Linux >>> >> >> ceph06: Linux ceph06 3.13.0-65-generic #106-Ubuntu SMP Fri Oct 2 >>> >> >> 22:08:27 >>> >> >> UTC 2015 x86_64 x86_64 x86_64 GNU/Linux >>> >> >> ceph05: Linux ceph05 3.13.0-65-generic #106-Ubuntu SMP Fri Oct 2 >>> >> >> 22:08:27 >>> >> >> UTC 2015 x86_64 x86_64 x86_64 GNU/Linux >>> >> >> ceph04: Linux ceph04 3.13.0-65-generic #106-Ubuntu SMP Fri Oct 2 >>> >> >> 22:08:27 >>> >> >> UTC 2015 x86_64 x86_64 x86_64 GNU/Linux >>> >> >> ceph08: Linux ceph08 3.19.0-51-generic #58~14.04.1-Ubuntu SMP Fri >>> >> >> Feb >>> >> >> 26 >>> >> >> 22:02:58 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux >>> >> >> ceph07: Linux ceph07 3.13.0-65-generic #106-Ubuntu SMP Fri Oct 2 >>> >> >> 22:08:27 >>> >> >> UTC 2015 x86_64 x86_64 x86_64 GNU/Linux >>> >> >> ceph09: Linux ceph09 3.19.0-51-generic #58~14.04.1-Ubuntu SMP Fri >>> >> >> Feb >>> >> >> 26 >>> >> >> 22:02:58 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux >>> >> >> >>> >> >> >>> >> >> On Mon, Mar 7, 2016 at 6:39 PM, Samuel Just <sjust@xxxxxxxxxx> >>> >> >> wrote: >>> >> >>> >>> >> >>> What filesystem and kernel are you running on the osds? This (and >>> >> >>> your other bug, actually) could be explained by some kind of weird >>> >> >>> kernel readdir behavior. >>> >> >>> -Sam >>> >> >>> >>> >> >>> On Mon, Mar 7, 2016 at 4:36 PM, Samuel Just <sjust@xxxxxxxxxx> >>> >> >>> wrote: >>> >> >>> > Hmm, so much for that theory, still looking. If you can produce >>> >> >>> > another set of logs (as before) from scrubbing that pg, it might >>> >> >>> > help. >>> >> >>> > -Sam >>> >> >>> > >>> >> >>> > On Mon, Mar 7, 2016 at 4:34 PM, Jeffrey McDonald >>> >> >>> > <jmcdonal@xxxxxxx> >>> >> >>> > wrote: >>> >> >>> >> 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 >>> >> >>> >> >>> >> >>> >> >>> >> >> >>> >> >> >>> >> >> >>> >> >> >>> >> >> -- >>> >> >> >>> >> >> 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 >>> > >>> > >> >> >> >> >> -- >> >> 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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