Only time I saw such behaviour was when I was deleting a big chunk of data from the cluster: all the client activity was reduced, the op/s were almost non-existent and there was unjustified delays all over the cluster. But all the disks were somewhat busy in atop/iotstat. On 5 September 2014 09:51, David <david at visions.se> wrote: > Hi, > > Indeed strange. > > That output was when we had issues, seems that most operations were > blocked / slow requests. > > A ?baseline? output is more like today: > > 2014-09-05 10:44:29.123681 mon.0 [INF] pgmap v12582759: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; 9273KB/s > rd, 24650KB/s wr, 2755op/s > 2014-09-05 10:44:30.125637 mon.0 [INF] pgmap v12582760: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; 9500KB/s > rd, 20430KB/s wr, 2294op/s > 2014-09-05 10:44:31.139427 mon.0 [INF] pgmap v12582761: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; 9216KB/s > rd, 20062KB/s wr, 2488op/s > 2014-09-05 10:44:32.144945 mon.0 [INF] pgmap v12582762: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; > 12511KB/s rd, 15739KB/s wr, 2488op/s > 2014-09-05 10:44:33.161210 mon.0 [INF] pgmap v12582763: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; > 18593KB/s rd, 14880KB/s wr, 2609op/s > 2014-09-05 10:44:34.187294 mon.0 [INF] pgmap v12582764: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; > 17720KB/s rd, 22964KB/s wr, 3257op/s > 2014-09-05 10:44:35.190785 mon.0 [INF] pgmap v12582765: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; > 19230KB/s rd, 18901KB/s wr, 3199op/s > 2014-09-05 10:44:36.213535 mon.0 [INF] pgmap v12582766: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; > 17630KB/s rd, 18855KB/s wr, 3131op/s > 2014-09-05 10:44:37.220052 mon.0 [INF] pgmap v12582767: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; > 12262KB/s rd, 18627KB/s wr, 2595op/s > 2014-09-05 10:44:38.233357 mon.0 [INF] pgmap v12582768: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; > 17697KB/s rd, 17572KB/s wr, 2156op/s > 2014-09-05 10:44:39.239409 mon.0 [INF] pgmap v12582769: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; > 20300KB/s rd, 19735KB/s wr, 2197op/s > 2014-09-05 10:44:40.260423 mon.0 [INF] pgmap v12582770: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; > 14656KB/s rd, 15460KB/s wr, 2199op/s > 2014-09-05 10:44:41.269736 mon.0 [INF] pgmap v12582771: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; 8969KB/s > rd, 11918KB/s wr, 1951op/s > 2014-09-05 10:44:42.276192 mon.0 [INF] pgmap v12582772: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; 7272KB/s > rd, 10644KB/s wr, 1832op/s > 2014-09-05 10:44:43.291817 mon.0 [INF] pgmap v12582773: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; 9316KB/s > rd, 16610KB/s wr, 2412op/s > 2014-09-05 10:44:44.295469 mon.0 [INF] pgmap v12582774: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; 9257KB/s > rd, 19953KB/s wr, 2633op/s > 2014-09-05 10:44:45.315774 mon.0 [INF] pgmap v12582775: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; 9718KB/s > rd, 14298KB/s wr, 2101op/s > 2014-09-05 10:44:46.326783 mon.0 [INF] pgmap v12582776: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; > 20877KB/s rd, 12822KB/s wr, 2447op/s > 2014-09-05 10:44:47.327537 mon.0 [INF] pgmap v12582777: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; > 18447KB/s rd, 12945KB/s wr, 2226op/s > 2014-09-05 10:44:48.348725 mon.0 [INF] pgmap v12582778: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; > 15514KB/s rd, 19366KB/s wr, 1892op/s > 2014-09-05 10:44:49.357537 mon.0 [INF] pgmap v12582779: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; > 16640KB/s rd, 19694KB/s wr, 1887op/s > 2014-09-05 10:44:50.365016 mon.0 [INF] pgmap v12582780: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; 9139KB/s > rd, 10734KB/s wr, 1566op/s > 2014-09-05 10:44:51.385553 mon.0 [INF] pgmap v12582781: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; > 11493KB/s rd, 13827KB/s wr, 1928op/s > 2014-09-05 10:44:52.389189 mon.0 [INF] pgmap v12582782: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; > 12922KB/s rd, 12814KB/s wr, 1670op/s > 2014-09-05 10:44:53.403735 mon.0 [INF] pgmap v12582783: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; > 14880KB/s rd, 17532KB/s wr, 2145op/s > 2014-09-05 10:44:54.410581 mon.0 [INF] pgmap v12582784: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; > 15419KB/s rd, 19696KB/s wr, 2259op/s > 2014-09-05 10:44:55.420308 mon.0 [INF] pgmap v12582785: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; > 10964KB/s rd, 15739KB/s wr, 1701op/s > 2014-09-05 10:44:56.445017 mon.0 [INF] pgmap v12582786: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; > 16195KB/s rd, 15554KB/s wr, 2444op/s > 2014-09-05 10:44:57.452136 mon.0 [INF] pgmap v12582787: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; > 15016KB/s rd, 16356KB/s wr, 2358op/s > 2014-09-05 10:44:58.465958 mon.0 [INF] pgmap v12582788: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; > 11668KB/s rd, 18443KB/s wr, 2029op/s > 2014-09-05 10:44:59.483462 mon.0 [INF] pgmap v12582789: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; > 12253KB/s rd, 10846KB/s wr, 1529op/s > 2014-09-05 10:45:00.492322 mon.0 [INF] pgmap v12582790: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; > 12247KB/s rd, 7084KB/s wr, 1464op/s > 2014-09-05 10:45:01.516581 mon.0 [INF] pgmap v12582791: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; > 16460KB/s rd, 12089KB/s wr, 2537op/s > 2014-09-05 10:45:02.527110 mon.0 [INF] pgmap v12582792: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; > 13382KB/s rd, 15080KB/s wr, 2563op/s > 2014-09-05 10:45:03.538090 mon.0 [INF] pgmap v12582793: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; > 10902KB/s rd, 18745KB/s wr, 2863op/s > 2014-09-05 10:45:04.558261 mon.0 [INF] pgmap v12582794: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; > 10850KB/s rd, 15995KB/s wr, 2695op/s > 2014-09-05 10:45:05.565750 mon.0 [INF] pgmap v12582795: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; 9636KB/s > rd, 13262KB/s wr, 2372op/s > 2014-09-05 10:45:06.593984 mon.0 [INF] pgmap v12582796: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; > 18808KB/s rd, 19329KB/s wr, 3819op/s > 2014-09-05 10:45:07.595866 mon.0 [INF] pgmap v12582797: 6860 pgs: 6860 > active+clean; 12253 GB data, 36574 GB used, 142 TB / 178 TB avail; > 21265KB/s rd, 20743KB/s wr, 3861op/s > 2014-09-05 10:45:08.624949 mon.0 [INF] pgmap v12582798: 6860 pgs: 6860 > active+clean; 12254 GB data, 36574 GB used, 142 TB / 178 TB avail; > 20114KB/s rd, 18543KB/s wr, 3248op/s > 2014-09-05 10:45:09.627901 mon.0 [INF] pgmap v12582799: 6860 pgs: 6860 > active+clean; 12254 GB data, 36574 GB used, 142 TB / 178 TB avail; > 14717KB/s rd, 15141KB/s wr, 2302op/s > 2014-09-05 10:45:10.643234 mon.0 [INF] pgmap v12582800: 6860 pgs: 6860 > active+clean; 12254 GB data, 36574 GB used, 142 TB / 178 TB avail; 8328KB/s > rd, 13950KB/s wr, 1919op/s > 2014-09-05 10:45:11.651602 mon.0 [INF] pgmap v12582801: 6860 pgs: 6860 > active+clean; 12254 GB data, 36574 GB used, 142 TB / 178 TB avail; > 16978KB/s rd, 15921KB/s wr, 3377op/s > 2014-09-05 10:45:12.674819 mon.0 [INF] pgmap v12582802: 6860 pgs: 6860 > active+clean; 12254 GB data, 36574 GB used, 142 TB / 178 TB avail; > 16471KB/s rd, 14034KB/s wr, 3379op/s > 2014-09-05 10:45:13.688080 mon.0 [INF] pgmap v12582803: 6860 pgs: 6860 > active+clean; 12254 GB data, 36574 GB used, 142 TB / 178 TB avail; > 16149KB/s rd, 12657KB/s wr, 2734op/s > > Aye, we actually saw latency on the disks go up a bit when we had 128GB of > RAM on the OSDs and decided to beef them up to 256GB which helped. > They?re running different workloads (shared hosting) but we?ve never > encountered the issue we had yesterday even during our testing/benchmarking. > > Kind Regards, > David > > 5 sep 2014 kl. 09:05 skrev Christian Balzer <chibi at gol.com>: > > > > > Hello, > > > > On Fri, 5 Sep 2014 08:26:47 +0200 David wrote: > > > >> Hi, > >> > >> Sorry for the lack of information yesterday, this was "solved" after > >> some 30 minutes, after having reloaded/restarted all osd daemons. > >> Unfortunately we couldn?t pin point it to a single OSD or drive, all > >> drives seemed ok, some had a bit higher latency and we tried to out / in > >> them to see if it had any effect which it did not. > >> > > This is odd. > > Having it "fixed" by restarting all OSDs would suggest either a software > > problem (bug) with Ceph or some resource other than the storage system > > being starved. But memory seems unlikely, even with bloated, leaking OSD > > daemon. And CPU seems even less likely. > > > >> The cluster consists of 3 mon servrers, 5 OSD servers with 10 enterprise > >> HDDs backed with 2 S3700 SSDs for journals each. OSD servers have 256GB > >> of RAM, 2x E5-2630 v2 @ 2.60GHz CPUs. > >> > >> The log that I posted yesterday was just a small taste of the full > >> one ;) They were all pointing to different osd?s that they were waiting > >> for. We?re also monitoring all of the VMs running on KVM, and we didn?t > >> see any exceptional throughput or iops usage before or during this > >> event. We were checking iostat etc and nothing was out of the ordinary.. > >> > >> Going to double check SMART and also see if we can off load some of the > >> cluster in any way. If you have any other advice that?d be appreciated > :) > >> > > If the mon output below is typical for your cluster (634KB/s rd, 487KB/s > > wr, 90op/s) it should be able to handle that w/o breaking a sweat. > > I guestimate it at about 13K write IOPS and your reads should (after a > > while) come mostly from the nice big pagecache you have on those 256GB > RAM > > machines. > > > > Christian > > > >> Thanks for your help! > >> > >> Kind Regards, > >> David > >> > >> 5 sep 2014 kl. 07:30 skrev Martin B Nielsen <martin at unity3d.com>: > >> > >>> Just echoing what Christian said. > >>> > >>> Also, iirc the "currently waiting for subobs on [" could also mean a > >>> problem on those as it waits for ack from them (I might remember > >>> wrong). > >>> > >>> If that is the case you might want to check in on osd 13 & 37 as well. > >>> > >>> With the cluster load and size you should not have this problem; I'm > >>> pretty sure you're dealing with a rogue/faulty osd/node somewhere. > >>> > >>> Cheers, > >>> Martin > >>> > >>> > >>> On Fri, Sep 5, 2014 at 2:28 AM, Christian Balzer <chibi at gol.com> > wrote: > >>> On Thu, 4 Sep 2014 12:02:13 +0200 David wrote: > >>> > >>>> Hi, > >>>> > >>>> We?re running a ceph cluster with version: > >>>> > >>>> 0.67.7-1~bpo70+1 > >>>> > >>>> All of a sudden we?re having issues with the cluster (running RBD > >>>> images for kvm) with slow requests on all of the OSD servers. Any > >>>> idea why and how to fix it? > >>>> > >>> You give us a Ceph version at least, but for anybody to make guesses we > >>> need much more information than a log spew. > >>> > >>> How many nodes/OSDs, OS, hardware, OSD details (FS, journals on SSDs), > >>> etc. > >>> > >>> Run atop (in a sufficiently large terminal) on all your nodes, see if > >>> you can spot a bottleneck, like a disk being at 100% all the time with > >>> a much higher avio than the others. > >>> Looking at your logs, I'd pay particular attention to the disk holding > >>> osd.22. > >>> A single slow disk can bring a whole large cluster to a crawl. > >>> If you're using a hardware controller with a battery backed up cache, > >>> check if that is fine, loss of the battery would switch from writeback > >>> to writethrough and massively slow down IOPS. > >>> > >>> Regards, > >>> > >>> Christian > >>>> > >>>> 2014-09-04 11:56:35.868521 mon.0 [INF] pgmap v12504451: 6860 pgs: > >>>> 6860 active+clean; 12163 GB data, 36308 GB used, 142 TB / 178 TB > >>>> avail; 634KB/s rd, 487KB/s wr, 90op/s 2014-09-04 11:56:29.510270 > >>>> osd.22 [WRN] 15 slow requests, 1 included below; oldest blocked for > >>>>> 44.745754 secs 2014-09-04 11:56:29.510276 osd.22 [WRN] slow > >>>>> request 30.999821 seconds > >>>> old, received at 2014-09-04 11:55:58.510424: > >>>> osd_op(client.10731617.0:81868956 > >>>> rbd_data.967e022eb141f2.0000000000000e72 [write 0~4194304] 3.c585cebe > >>>> e13901) v4 currently waiting for subops from [37,13] 2014-09-04 > >>>> 11:56:30.510528 osd.22 [WRN] 21 slow requests, 6 included below; > >>>> oldest blocked for > 45.745989 secs 2014-09-04 11:56:30.510534 > >>>> osd.22 [WRN] slow request 30.122555 seconds old, received at > >>>> 2014-09-04 11:56:00.387925: osd_op(client.13425082.0:11962345 > >>>> rbd_data.54f24c3d1b58ba.0000000000003753 [stat,write 1114112~8192] > >>>> 3.c9e49140 e13901) v4 currently waiting for subops from [13,42] > >>>> 2014-09-04 11:56:30.510537 osd.22 [WRN] slow request 30.122362 > >>>> seconds old, received at 2014-09-04 11:56:00.388118: > >>>> osd_op(client.13425082.0:11962352 > >>>> rbd_data.54f24c3d1b58ba.0000000000003753 [stat,write 1134592~4096] > >>>> 3.c9e49140 e13901) v4 currently waiting for subops from [13,42] > >>>> 2014-09-04 11:56:30.510541 osd.22 [WRN] slow request 30.122298 > >>>> seconds old, received at 2014-09-04 11:56:00.388182: > >>>> osd_op(client.13425082.0:11962353 > >>>> rbd_data.54f24c3d1b58ba.0000000000003753 [stat,write 4046848~8192] > >>>> 3.c9e49140 e13901) v4 currently waiting for subops from [13,42] > >>>> 2014-09-04 11:56:30.510544 osd.22 [WRN] slow request 30.121577 > >>>> seconds old, received at 2014-09-04 11:56:00.388903: > >>>> osd_op(client.13425082.0:11962374 > >>>> rbd_data.54f24c3d1b58ba.00000000000047f2 [stat,write 2527232~4096] > >>>> 3.cd9a9015 e13901) v4 currently waiting for subops from [45,1] > >>>> 2014-09-04 11:56:30.510548 osd.22 [WRN] slow request 30.121518 > >>>> seconds old, received at 2014-09-04 11:56:00.388962: > >>>> osd_op(client.13425082.0:11962375 > >>>> rbd_data.54f24c3d1b58ba.00000000000047f2 [stat,write 3133440~4096] > >>>> 3.cd9a9015 e13901) v4 currently waiting for subops from [45,1] > >>>> 2014-09-04 11:56:31.510706 osd.22 [WRN] 26 slow requests, 6 included > >>>> below; oldest blocked for > 46.746163 secs 2014-09-04 11:56:31.510711 > >>>> osd.22 [WRN] slow request 31.035418 seconds old, received at > >>>> 2014-09-04 11:56:00.475236: osd_op(client.9266625.0:135900595 > >>>> rbd_data.42d6792eb141f2.000000000000bc00 [stat,write 2097152~4096] > >>>> 3.a2894ebe e13901) v4 currently waiting for subops from [37,13] > >>>> 2014-09-04 11:56:31.510715 osd.22 [WRN] slow request 31.035335 > >>>> seconds old, received at 2014-09-04 11:56:00.475319: > >>>> osd_op(client.9266625.0:135900596 > >>>> rbd_data.42d6792eb141f2.000000000000bc00 [stat,write 2162688~4096] > >>>> 3.a2894ebe e13901) v4 currently waiting for subops from [37,13] > >>>> 2014-09-04 11:56:31.510718 osd.22 [WRN] slow request 31.035270 > >>>> seconds old, received at 2014-09-04 11:56:00.475384: > >>>> osd_op(client.9266625.0:135900597 > >>>> rbd_data.42d6792eb141f2.000000000000bc00 [stat,write 2400256~16384] > >>>> 3.a2894ebe e13901) v4 currently waiting for subops from [37,13] > >>>> 2014-09-04 11:56:31.510721 osd.22 [WRN] slow request 31.035093 > >>>> seconds old, received at 2014-09-04 11:56:00.475561: > >>>> osd_op(client.9266625.0:135900598 > >>>> rbd_data.42d6792eb141f2.000000000000bc00 [stat,write 2420736~4096] > >>>> 3.a2894ebe e13901) v4 currently waiting for subops from [37,13] > >>>> 2014-09-04 11:56:31.510724 osd.22 [WRN] slow request 31.034990 > >>>> seconds old, received at 2014-09-04 11:56:00.475664: > >>>> osd_op(client.9266625.0:135900599 > >>>> rbd_data.42d6792eb141f2.000000000000bc00 [stat,write 2428928~12288] > >>>> 3.a2894ebe e13901) v4 currently waiting for subops from [37,13] > >>>> 2014-09-04 11:56:32.510864 osd.22 [WRN] 28 slow requests, 6 included > >>>> below; oldest blocked for > 47.746324 secs 2014-09-04 11:56:32.510871 > >>>> osd.22 [WRN] slow request 32.035026 seconds old, received at > >>>> 2014-09-04 11:56:00.475789: osd_op(client.9266625.0:135900600 > >>>> rbd_data.42d6792eb141f2.000000000000bc00 [stat,write 2453504~4096] > >>>> 3.a2894ebe e13901) v4 currently waiting for subops from [37,13] > >>>> 2014-09-04 11:56:32.510876 osd.22 [WRN] slow request 32.034982 > >>>> seconds old, received at 2014-09-04 11:56:00.475833: > >>>> osd_op(client.9266625.0:135900601 > >>>> rbd_data.42d6792eb141f2.000000000000bc00 [stat,write 2502656~16384] > >>>> 3.a2894ebe e13901) v4 currently waiting for subops from [37,13] > >>>> 2014-09-04 11:56:32.510881 osd.22 [WRN] slow request 32.034917 > >>>> seconds old, received at 2014-09-04 11:56:00.475898: > >>>> osd_op(client.9266625.0:135900602 > >>>> rbd_data.42d6792eb141f2.000000000000bc00 [stat,write 2600960~4096] > >>>> 3.a2894ebe e13901) v4 currently waiting for subops from [37,13] > >>>> 2014-09-04 11:56:32.510885 osd.22 [WRN] slow request 32.034807 > >>>> seconds old, received at 2014-09-04 11:56:00.476008: > >>>> osd_op(client.9266625.0:135900603 > >>>> rbd_data.42d6792eb141f2.000000000000bc00 [stat,write 2617344~4096] > >>>> 3.a2894ebe e13901) v4 currently waiting for subops from [37,13] > >>>> 2014-09-04 11:56:32.510890 osd.22 [WRN] slow request 32.034756 > >>>> seconds old, received at 2014-09-04 11:56:00.476059: > >>>> osd_op(client.9266625.0:135900604 > >>>> rbd_data.42d6792eb141f2.000000000000bc00 [stat,write 2637824~69632] > >>>> 3.a2894ebe e13901) v4 currently waiting for subops from [37,13] > >>>> 2014-09-04 11:56:32.723329 osd.17 [WRN] 4 slow requests, 4 included > >>>> below; oldest blocked for > 30.605794 secs 2014-09-04 11:56:32.723335 > >>>> osd.17 [WRN] slow request 30.605794 seconds old, received at > >>>> 2014-09-04 11:56:02.117495: osd_op(client.12646411.0:31118135 > >>>> rbd_data.81aaf52eb141f2.0000000000000e4b [stat,write 0~4194304] > >>>> 3.716b373b e13901) v4 currently waiting for subops from [31,1] > >>>> 2014-09-04 11:56:32.723338 osd.17 [WRN] slow request 30.362042 > >>>> seconds old, received at 2014-09-04 11:56:02.361247: > >>>> osd_op(client.12485793.0:121786489 > >>>> rbd_data.4ae87f2eb141f2.000000000000e200 [stat,write 2834432~4096] > >>>> 3.6b43de72 e13901) v4 currently waiting for subops from [5,31] > >>>> 2014-09-04 11:56:32.723341 osd.17 [WRN] slow request 30.179681 > >>>> seconds old, received at 2014-09-04 11:56:02.543608: > >>>> osd_op(client.13425079.0:7014393 > >>>> rbd_data.54f2522eb141f2.0000000000014d01 [stat,write 2502656~4096] > >>>> 3.d8ceea89 e13901) v4 currently waiting for subops from [31,18] > >>>> 2014-09-04 11:56:32.723344 osd.17 [WRN] slow request 30.000568 > >>>> seconds old, received at 2014-09-04 11:56:02.722721: > >>>> osd_op(client.9281279.0:144230325 > >>>> rbd_data.2d99fc2eb141f2.000000000000e80a [stat,write 1589248~4096] > >>>> 3.16dc0e89 e13901) v4 currently waiting for subops from [31,18] > >>>> 2014-09-04 11:56:33.511043 osd.22 [WRN] 33 slow requests, 6 included > >>>> below; oldest blocked for > 48.746486 secs 2014-09-04 11:56:33.511049 > >>>> osd.22 [WRN] slow request 33.034756 seconds old, received at > >>>> 2014-09-04 11:56:00.476221: osd_op(client.9266625.0:135900605 > >>>> rbd_data.42d6792eb141f2.000000000000bc00 [stat,write 2715648~8192] > >>>> 3.a2894ebe e13901) v4 currently waiting for subops from [37,13] > >>>> 2014-09-04 11:56:33.511053 osd.22 [WRN] slow request 33.034620 > >>>> seconds old, received at 2014-09-04 11:56:00.476357: > >>>> osd_op(client.9266625.0:135900606 > >>>> rbd_data.42d6792eb141f2.000000000000bc00 [stat,write 2756608~4096] > >>>> 3.a2894ebe e13901) v4 currently waiting for subops from [37,13] > >>>> 2014-09-04 11:56:33.511056 osd.22 [WRN] slow request 33.034446 > >>>> seconds old, received at 2014-09-04 11:56:00.476531: > >>>> osd_op(client.9266625.0:135900607 > >>>> rbd_data.42d6792eb141f2.000000000000bc00 [stat,write 2809856~4096] > >>>> 3.a2894ebe e13901) v4 currently waiting for subops from [37,13] > >>>> 2014-09-04 11:56:33.511060 osd.22 [WRN] slow request 33.034387 > >>>> seconds old, received at 2014-09-04 11:56:00.476590: > >>>> osd_op(client.9266625.0:135900608 > >>>> rbd_data.42d6792eb141f2.000000000000bc00 [stat,write 2883584~4096] > >>>> 3.a2894ebe e13901) v4 currently waiting for subops from [37,13] > >>>> 2014-09-04 11:56:33.511063 osd.22 [WRN] slow request 33.034341 > >>>> seconds old, received at 2014-09-04 11:56:00.476636: > >>>> osd_op(client.9266625.0:135900609 > >>>> rbd_data.42d6792eb141f2.000000000000bc00 [stat,write 2891776~8192] > >>>> 3.a2894ebe e13901) v4 currently waiting for subops from [37,13] > >>>> 2014-09-04 11:56:34.511206 osd.22 [WRN] 38 slow requests, 6 included > >>>> below; oldest blocked for > 49.746664 secs 2014-09-04 11:56:34.511215 > >>>> osd.22 [WRN] slow request 34.034426 seconds old, received at > >>>> 2014-09-04 11:56:00.476729: osd_op(client.9266625.0:135900610 > >>>> rbd_data.42d6792eb141f2.000000000000bc00 [stat,write 2908160~4096] > >>>> 3.a2894ebe e13901) v4 currently waiting for subops from [37,13] > >>>> 2014-09-04 11:56:34.511219 osd.22 [WRN] slow request 34.034298 > >>>> seconds old, received at 2014-09-04 11:56:00.476857: > >>>> osd_op(client.9266625.0:135900611 > >>>> rbd_data.42d6792eb141f2.000000000000bc00 [stat,write 2932736~28672] > >>>> 3.a2894ebe e13901) v4 currently waiting for subops from [37,13] > >>>> 2014-09-04 11:56:34.511222 osd.22 [WRN] slow request 34.034234 > >>>> seconds old, received at 2014-09-04 11:56:00.476921: > >>>> osd_op(client.9266625.0:135900612 > >>>> rbd_data.42d6792eb141f2.000000000000bc00 [stat,write 2969600~8192] > >>>> 3.a2894ebe e13901) v4 currently waiting for subops from [37,13] > >>>> 2014-09-04 11:56:34.511225 osd.22 [WRN] slow request 34.034147 > >>>> seconds old, received at 2014-09-04 11:56:00.477008: > >>>> osd_op(client.9266625.0:135900613 > >>>> rbd_data.42d6792eb141f2.000000000000bc00 [stat,write 2981888~4096] > >>>> 3.a2894ebe e13901) v4 currently waiting for subops from [37,13] > >>>> 2014-09-04 11:56:34.511228 osd.22 [WRN] slow request 34.034055 > >>>> seconds old, received at 2014-09-04 11:56:00.477100: > >>>> osd_op(client.9266625.0:135900614 > >>>> rbd_data.42d6792eb141f2.000000000000bc00 [stat,write 2998272~12288] > >>>> 3.a2894ebe e13901) v4 currently waiting for subops from [37,13] > >>>> 2014-09-04 11:56:35.153813 osd.37 [WRN] 1 slow requests, 1 included > >>>> below; oldest blocked for > 30.307864 secs 2014-09-04 11:56:35.153820 > >>>> osd.37 [WRN] slow request 30.307864 seconds old, received at > >>>> 2014-09-04 11:56:04.845917: osd_op(client.10785413.0:129409910 > >>>> rbd_data.96803f2eb141f2.00000000000042b0 [stat,write 1712128~4096] > >>>> 3.6c5ac950 e13901) v4 currently waiting for subops from [22,41] > >>>> 2014-09-04 11:56:35.511450 osd.22 [WRN] 42 slow requests, 6 included > >>>> below; oldest blocked for > 50.746638 secs 2014-09-04 11:56:35.511455 > >>>> osd.22 [WRN] slow request 35.034219 seconds old, received at > >>>> 2014-09-04 11:56:00.477178: osd_op(client.9266625.0:135900615 > >>>> rbd_data.42d6792eb141f2.000000000000bc00 [stat,write 3022848~8192] > >>>> 3.a2894ebe e13901) v4 currently waiting for subops from [37,13] > >>>> 2014-09-04 11:56:35.511459 osd.22 [WRN] slow request 35.034143 > >>>> seconds old, received at 2014-09-04 11:56:00.477254: > >>>> osd_op(client.9266625.0:135900616 > >>>> rbd_data.42d6792eb141f2.000000000000bc00 [stat,write 3035136~12288] > >>>> 3.a2894ebe e13901) v4 currently waiting for subops from [37,13] > >>>> 2014-09-04 11:56:35.511462 osd.22 [WRN] slow request 35.034082 > >>>> seconds old, received at 2014-09-04 11:56:00.477315: > >>>> osd_op(client.9266625.0:135900617 > >>>> rbd_data.42d6792eb141f2.000000000000bc00 [stat,write 3055616~4096] > >>>> 3.a2894ebe e13901) v4 currently waiting for subops from [37,13] > >>>> 2014-09-04 11:56:35.511465 osd.22 [WRN] slow request 35.033965 > >>>> seconds old, received at 2014-09-04 11:56:00.477432: > >>>> osd_op(client.9266625.0:135900618 > >>>> rbd_data.42d6792eb141f2.000000000000bc00 [stat,write 3063808~4096] > >>>> 3.a2894ebe e13901) v4 currently waiting for subops from [37,13] > >>>> 2014-09-04 11:56:35.511469 osd.22 [WRN] slow request 34.162275 > >>>> seconds old, received at 2014-09-04 11:56:01.349122: > >>>> osd_op(client.12485646.0:110385143 > >>>> rbd_data.4ccab12eb141f2.0000000000015b66 [stat,write 909312~4096] > >>>> 3.9c416abe e13901) v4 currently waiting for subops from [37,13] > >>>> 2014-09-04 11:56:36.511603 osd.22 [WRN] 34 slow requests, 6 included > >>>> below; oldest blocked for > 51.746797 secs 2014-09-04 11:56:36.511609 > >>>> osd.22 [WRN] slow request 34.401476 seconds old, received at > >>>> 2014-09-04 11:56:02.110080: osd_op(client.12485643.0:117955489 > >>>> rbd_data.4aad332eb141f2.0000000000002c00 [stat,write 2531328~4096] > >>>> 3.b985ec92 e13901) v4 currently waiting for subops from [33,1] > >>>> 2014-09-04 11:56:36.511612 osd.22 [WRN] slow request 34.149511 > >>>> seconds old, received at 2014-09-04 11:56:02.362045: > >>>> osd_op(client.12485793.0:121786505 > >>>> rbd_data.4ae87f2eb141f2.0000000000018a0a [stat,write 3342336~4096] > >>>> 3.26907492 e13901) v4 currently waiting for subops from [33,1] > >>>> 2014-09-04 11:56:36.511615 osd.22 [WRN] slow request 34.329528 > >>>> seconds old, received at 2014-09-04 11:56:02.182028: > >>>> osd_op(client.12646411.0:31118266 > >>>> rbd_data.81aaf52eb141f2.0000000000000e4f [stat,write 0~4194304] > >>>> 3.168c978d e13901) v4 currently waiting for subops from [49,29] > >>>> 2014-09-04 11:56:36.511618 osd.22 [WRN] slow request 31.871976 > >>>> seconds old, received at 2014-09-04 11:56:04.639580: > >>>> osd_op(client.12485793.0:121786506 > >>>> rbd_data.4ae87f2eb141f2.0000000000018a0a [stat,write 0~4096] > >>>> 3.26907492 e13901) v4 currently waiting for subops from [33,1] > >>>> 2014-09-04 11:56:36.511621 osd.22 [WRN] slow request 31.008867 > >>>> seconds old, received at 2014-09-04 11:56:05.502689: > >>>> osd_op(client.9266625.0:135901516 > >>>> rbd_data.42d6792eb141f2.0000000000017436 [stat,write 2682880~4096] > >>>> 3.32067b97 e13901) v4 currently waiting for subops from [12,29] > >>>> 2014-09-04 11:56:36.723882 osd.17 [WRN] 5 slow requests, 1 included > >>>> below; oldest blocked for > 34.606349 secs 2014-09-04 11:56:36.723887 > >>>> osd.17 [WRN] slow request 30.603057 seconds old, received at > >>>> 2014-09-04 11:56:06.120787: osd_op(client.12483520.0:11473870 > >>>> rbd_data.4b8e9b3d1b58ba.0000000000004600 [stat,write 2293760~4096] > >>>> 3.49398689 e13901) v4 currently waiting for subops from [31,18] > >>>> 2014-09-04 11:56:37.511787 osd.22 [WRN] 24 slow requests, 6 included > >>>> below; oldest blocked for > 52.746984 secs 2014-09-04 11:56:37.511793 > >>>> osd.22 [WRN] slow request 32.008986 seconds old, received at > >>>> 2014-09-04 11:56:05.502757: osd_op(client.9266625.0:135901517 > >>>> rbd_data.42d6792eb141f2.0000000000017436 [stat,write 2695168~4096] > >>>> 3.32067b97 e13901) v4 currently waiting for subops from [12,29] > >>>> 2014-09-04 11:56:37.511798 osd.22 [WRN] slow request 31.749483 > >>>> seconds old, received at 2014-09-04 11:56:05.762260: > >>>> osd_op(client.9281282.0:55728036 > >>>> rbd_data.2d99f62eb141f2.0000000000003753 [stat,write 1630208~8192] > >>>> 3.6625df97 e13901) v4 currently waiting for subops from [12,29] > >>>> 2014-09-04 11:56:37.511801 osd.22 [WRN] slow request 31.745558 > >>>> seconds old, received at 2014-09-04 11:56:05.766185: > >>>> osd_op(client.9281282.0:55728038 > >>>> rbd_data.2d99f62eb141f2.0000000000003753 [stat,write 1941504~4096] > >>>> 3.6625df97 e13901) v4 currently waiting for subops from [12,29] > >>>> 2014-09-04 11:56:37.511803 osd.22 [WRN] slow request 31.390945 > >>>> seconds old, received at 2014-09-04 11:56:06.120798: > >>>> osd_op(client.12483520.0:11473871 > >>>> rbd_data.4b8e9b3d1b58ba.0000000000005c00 [stat,write 2424832~8192] > >>>> 3.47dbbb97 e13901) v4 currently waiting for subops from [12,29] > >>>> 2014-09-04 11:56:37.511806 osd.22 [WRN] slow request 31.390357 > >>>> seconds old, received at 2014-09-04 11:56:06.121386: > >>>> osd_op(client.12483520.0:11473884 > >>>> rbd_data.4b8e9b3d1b58ba.0000000000005c00 [stat,write 2457600~16384] > >>>> 3.47dbbb97 e13901) v4 currently waiting for subops from [12,29] > >>>> > >>>> Kind Regards, > >>>> > >>>> David > >>>> > >>>> > >>>> _______________________________________________ > >>>> ceph-users mailing list > >>>> ceph-users at lists.ceph.com > >>>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > >>>> > >>> > >>> > >>> -- > >>> Christian Balzer Network/Systems Engineer > >>> chibi at gol.com Global OnLine Japan/Fusion Communications > >>> http://www.gol.com/ > >>> _______________________________________________ > >>> ceph-users mailing list > >>> ceph-users at lists.ceph.com > >>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > >>> > >>> _______________________________________________ > >>> ceph-users mailing list > >>> ceph-users at lists.ceph.com > >>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > >> > > > > > > -- > > Christian Balzer Network/Systems Engineer > > chibi at gol.com Global OnLine Japan/Fusion Communications > > http://www.gol.com/ > > _______________________________________________ > > ceph-users mailing list > > ceph-users at lists.ceph.com > > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > _______________________________________________ > ceph-users mailing list > ceph-users at lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > -- Luis Periquito Unix Engineer Ocado.com <http://www.ocado.com/> Head Office, Titan Court, 3 Bishop Square, Hatfield Business Park, Hatfield, Herts AL10 9NE -- Notice: This email is confidential and may contain copyright material of members of the Ocado Group. 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