Hello cephers, we have a few systems which utilize a rbd-bd map/mount to get access to a rbd volume. (This problem seems to be related to "[ceph-users] Slow requests from bluestore osds" (the original thread))
Unfortunately the rbd-nbd device of a system crashes three mondays in series at ~00:00 when the systemd fstrim timer executes "fstrim -av". (which runs in parallel to deep scrub operations) After that the device constantly reports io errors every time a access to the filesystem happens. Unmounting, remapping and mounting helped to get the filesystem/device back into business :-) Manual 30 minute stresstests using the following fio command, did not produce any problems on client side (Ceph storage reported some slow requests while testing). fio --randrepeat=1 --ioengine=libaio --direct=1 --gtod_reduce=1 --name=test --filename=test --bs=4k --iodepth=64 --size=4G --readwrite=randrw --rwmixread=50 --numjobs=50 --loops=10 It seems that others also experienced this problem: https://ceph-users.ceph.narkive.com/2FIfyx1U/rbd-nbd-timeout-and-crash The change for setting device timeouts by not seems to be merged to luminous. Experiments setting the timeout manually after mapping using https://github.com/OnApp/nbd-kernel_mod/blob/master/nbd_set_timeout.c haven't change the situation. Do you have suggestions how to analyze/solve the situation? Regards Marc ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ The client kernel throws messages like this: May 19 23:59:01 int-nfs-001 CRON[836295]: (root) CMD (command -v debian-sa1 > /dev/null && debian-sa1 60 2) May 20 00:00:30 int-nfs-001 systemd[1]: Starting Discard unused blocks... May 20 00:01:02 int-nfs-001 kernel: [1077851.623582] block nbd0: Connection timed out May 20 00:01:02 int-nfs-001 kernel: [1077851.623613] block nbd0: shutting down sockets May 20 00:01:02 int-nfs-001 kernel: [1077851.623617] print_req_error: I/O error, dev nbd0, sector 84082280 May 20 00:01:02 int-nfs-001 kernel: [1077851.623632] block nbd0: Connection timed out May 20 00:01:02 int-nfs-001 kernel: [1077851.623636] print_req_error: I/O error, dev nbd0, sector 92470887 May 20 00:01:02 int-nfs-001 kernel: [1077851.623642] block nbd0: Connection timed out Ceph throws messages like this: 2019-05-20 00:00:00.000124 mon.ceph-mon-s43 mon.0 10.23.27.153:6789/0 173572 : cluster [INF] overall HEALTH_OK 2019-05-20 00:00:54.249998 mon.ceph-mon-s43 mon.0 10.23.27.153:6789/0 173586 : cluster [WRN] Health check failed: 644 slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) 2019-05-20 00:01:00.330566 mon.ceph-mon-s43 mon.0 10.23.27.153:6789/0 173587 : cluster [WRN] Health check update: 594 slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) 2019-05-20 00:01:09.768476 mon.ceph-mon-s43 mon.0 10.23.27.153:6789/0 173591 : cluster [WRN] Health check update: 505 slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) 2019-05-20 00:01:14.768769 mon.ceph-mon-s43 mon.0 10.23.27.153:6789/0 173592 : cluster [WRN] Health check update: 497 slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) 2019-05-20 00:01:20.610398 mon.ceph-mon-s43 mon.0 10.23.27.153:6789/0 173593 : cluster [WRN] Health check update: 509 slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) 2019-05-20 00:01:28.721891 mon.ceph-mon-s43 mon.0 10.23.27.153:6789/0 173594 : cluster [WRN] Health check update: 501 slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) 2019-05-20 00:01:34.909842 mon.ceph-mon-s43 mon.0 10.23.27.153:6789/0 173596 : cluster [WRN] Health check update: 494 slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) 2019-05-20 00:01:44.770330 mon.ceph-mon-s43 mon.0 10.23.27.153:6789/0 173597 : cluster [WRN] Health check update: 500 slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) 2019-05-20 00:01:49.770625 mon.ceph-mon-s43 mon.0 10.23.27.153:6789/0 173599 : cluster [WRN] Health check update: 608 slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) 2019-05-20 00:01:55.073734 mon.ceph-mon-s43 mon.0 10.23.27.153:6789/0 173600 : cluster [WRN] Health check update: 593 slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) 2019-05-20 00:02:04.771432 mon.ceph-mon-s43 mon.0 10.23.27.153:6789/0 173607 : cluster [WRN] Health check update: 552 slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) 2019-05-20 00:02:09.771730 mon.ceph-mon-s43 mon.0 10.23.27.153:6789/0 173609 : cluster [WRN] Health check update: 720 slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) 2019-05-20 00:02:19.393803 mon.ceph-mon-s43 mon.0 10.23.27.153:6789/0 173610 : cluster [WRN] Health check update: 539 slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) 2019-05-20 00:02:25.474605 mon.ceph-mon-s43 mon.0 10.23.27.153:6789/0 173611 : cluster [WRN] Health check update: 527 slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) 2019-05-20 00:02:34.773039 mon.ceph-mon-s43 mon.0 10.23.27.153:6789/0 173612 : cluster [WRN] Health check update: 496 slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) 2019-05-20 00:02:39.773312 mon.ceph-mon-s43 mon.0 10.23.27.153:6789/0 173613 : cluster [WRN] Health check update: 493 slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) 2019-05-20 00:02:44.773604 mon.ceph-mon-s43 mon.0 10.23.27.153:6789/0 173614 : cluster [WRN] Health check update: 528 slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) 2019-05-20 00:02:49.801997 mon.ceph-mon-s43 mon.0 10.23.27.153:6789/0 173616 : cluster [WRN] Health check update: 537 slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) 2019-05-20 00:02:59.779779 mon.ceph-mon-s43 mon.0 10.23.27.153:6789/0 173617 : cluster [WRN] Health check update: 520 slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) 2019-05-20 00:03:04.780074 mon.ceph-mon-s43 mon.0 10.23.27.153:6789/0 173622 : cluster [WRN] Health check update: 493 slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) 2019-05-20 00:03:10.073854 mon.ceph-mon-s43 mon.0 10.23.27.153:6789/0 173624 : cluster [WRN] Health check update: 452 slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) 2019-05-20 00:03:19.780877 mon.ceph-mon-s43 mon.0 10.23.27.153:6789/0 173625 : cluster [WRN] Health check update: 515 slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) 2019-05-20 00:03:24.781177 mon.ceph-mon-s43 mon.0 10.23.27.153:6789/0 173626 : cluster [WRN] Health check update: 540 slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) 2019-05-20 00:03:30.321540 mon.ceph-mon-s43 mon.0 10.23.27.153:6789/0 173627 : cluster [WRN] Health check update: 545 slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) 2019-05-20 00:03:39.781968 mon.ceph-mon-s43 mon.0 10.23.27.153:6789/0 173628 : cluster [WRN] Health check update: 508 slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) 2019-05-20 00:03:44.782261 mon.ceph-mon-s43 mon.0 10.23.27.153:6789/0 173629 : cluster [WRN] Health check update: 469 slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) 2019-05-20 00:03:50.610639 mon.ceph-mon-s43 mon.0 10.23.27.153:6789/0 173630 : cluster [WRN] Health check update: 513 slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) 2019-05-20 00:03:58.724045 mon.ceph-mon-s43 mon.0 10.23.27.153:6789/0 173631 : cluster [WRN] Health check update: 350 slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) 2019-05-20 00:04:04.801989 mon.ceph-mon-s43 mon.0 10.23.27.153:6789/0 173638 : cluster [WRN] Health check update: 356 slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) 2019-05-20 00:04:14.783787 mon.ceph-mon-s43 mon.0 10.23.27.153:6789/0 173640 : cluster [WRN] Health check update: 395 slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) 2019-05-20 00:04:19.234877 mon.ceph-mon-s43 mon.0 10.23.27.153:6789/0 173641 : cluster [INF] Health check cleared: REQUEST_SLOW (was: 238 slow requests are blocked > 32 sec. Implicated osds 51) 2019-05-20 00:04:19.234921 mon.ceph-mon-s43 mon.0 10.23.27.153:6789/0 173642 : cluster [INF] Cluster is now healthy 2019-05-20 01:00:00.000124 mon.ceph-mon-s43 mon.0 10.23.27.153:6789/0 174035 : cluster [INF] overall HEALTH_OK The parameters of our environment: * Storage System (OSDs and MONs) o Ceph 12.2.11 o Ubuntu 16.04/1804 o 30 * 8GB spinners distributed over * Client o Ceph 12.2.11 o Ubuntu 18.04 / 64 Bit o ceph.conf: [global] fsid = <redacted> mon host = <redacted> public network = <redacted> [client] rbd cache = true rbd cache size = 536870912 rbd cache max dirty = 268435456 rbd cache target dirty = 134217728 rbd cache max dirty age = 30 rbd readahead max bytes = 4194304 Regards Marc Am 13.05.19 um 07:40 schrieb EDH - Manuel Rios Fernandez: > Hi Marc, > > Try to compact OSD with slow request > > ceph tell osd.[ID] compact > > This will make the OSD offline for some seconds(SSD) to minutes(HDD) and > perform a compact of OMAP database. > > Regards, > > > > > -----Mensaje original----- > De: ceph-users <ceph-users-boun...@lists.ceph.com> En nombre de Marc Schöchlin > Enviado el: lunes, 13 de mayo de 2019 6:59 > Para: ceph-users@lists.ceph.com > Asunto: Re: [ceph-users] Slow requests from bluestore osds > > Hello cephers, > > one week ago we replaced the bluestore cache size by "osd memory target" and > removed the detail memory settings. > This storage class now runs 42*8GB spinners with a permanent write workload > of 2000-3000 write IOPS, and 1200-8000 read IOPS. > > Out new setup is now: > (12.2.10 on Ubuntu 16.04) > > [osd] > osd deep scrub interval = 2592000 > osd scrub begin hour = 19 > osd scrub end hour = 6 > osd scrub load threshold = 6 > osd scrub sleep = 0.3 > osd snap trim sleep = 0.4 > pg max concurrent snap trims = 1 > > [osd.51] > osd memory target = 8589934592 > ... > > After that (restarting the entire cluster with these settings) we were very > happy to not seeany slow request for 7 days. > > Unfortunately this night the slow requests returned on one osd without any > known change of the workload of the last 14 days (according to our detailed > monitoring) > > 2019-05-12 22:00:00.000117 mon.ceph-mon-s43 [INF] overall HEALTH_OK > 2019-05-12 23:00:00.000130 mon.ceph-mon-s43 [INF] overall HEALTH_OK > 2019-05-13 00:00:00.000129 mon.ceph-mon-s43 [INF] overall HEALTH_OK > 2019-05-13 00:00:44.069793 mon.ceph-mon-s43 [WRN] Health check failed: 416 > slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) > 2019-05-13 00:00:50.151190 mon.ceph-mon-s43 [WRN] Health check update: 439 > slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) > 2019-05-13 00:00:59.750398 mon.ceph-mon-s43 [WRN] Health check update: 452 > slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) > 2019-05-13 00:01:04.750697 mon.ceph-mon-s43 [WRN] Health check update: 283 > slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) > 2019-05-13 00:01:10.419801 mon.ceph-mon-s43 [WRN] Health check update: 230 > slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) > 2019-05-13 00:01:19.751516 mon.ceph-mon-s43 [WRN] Health check update: 362 > slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) > 2019-05-13 00:01:24.751822 mon.ceph-mon-s43 [WRN] Health check update: 324 > slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) > 2019-05-13 00:01:30.675160 mon.ceph-mon-s43 [WRN] Health check update: 341 > slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) > 2019-05-13 00:01:38.759012 mon.ceph-mon-s43 [WRN] Health check update: 390 > slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) > 2019-05-13 00:01:44.858392 mon.ceph-mon-s43 [WRN] Health check update: 366 > slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) > 2019-05-13 00:01:54.753388 mon.ceph-mon-s43 [WRN] Health check update: 352 > slow requests are blocked > 32 sec. Implicated osds 51 (REQUEST_SLOW) > 2019-05-13 00:01:59.045220 mon.ceph-mon-s43 [INF] Health check cleared: > REQUEST_SLOW (was: 168 slow requests are blocked > 32 sec. Implicated osds 51) > 2019-05-13 00:01:59.045257 mon.ceph-mon-s43 [INF] Cluster is now healthy > 2019-05-13 01:00:00.000114 mon.ceph-mon-s43 [INF] overall HEALTH_OK > 2019-05-13 02:00:00.000130 mon.ceph-mon-s43 [INF] overall HEALTH_OK > > > The output of a "ceph health detail" loop at the time the problem occurred: > > Mon May 13 00:01:27 CEST 2019 > HEALTH_WARN 324 slow requests are blocked > 32 sec. Implicated osds 51 > REQUEST_SLOW 324 slow requests are blocked > 32 sec. Implicated osds 51 > 324 ops are blocked > 32.768 sec > osd.51 has blocked requests > 32.768 sec > > The logfile of the OSD: > > 2019-05-12 23:57:28.767463 7f38da4e2700 4 rocksdb: (Original Log Time > 2019/05/12-23:57:28.767419) > [/build/ceph-12.2.10/src/rocksdb/db/db_impl_compaction_flush.cc:132] > [default] Level summary: base level 1 max b ytes base 268435456 files[2 4 21 > 122 0 0 0] max score 0.94 > > 2019-05-12 23:57:28.767511 7f38da4e2700 4 rocksdb: > [/build/ceph-12.2.10/src/rocksdb/db/db_impl_files.cc:388] [JOB 2991] Try to > delete WAL files size 256700142, prev total WAL file size 257271487, number > of live > WAL files 2. > > 2019-05-12 23:58:07.816376 7f38ddce9700 0 log_channel(cluster) log [DBG] : > 34.ac scrub ok > 2019-05-12 23:59:54.070025 7f38de4ea700 0 log_channel(cluster) log [DBG] : > 34.236 scrub starts > 2019-05-13 00:02:21.818689 7f38de4ea700 0 log_channel(cluster) log [DBG] : > 34.236 scrub ok > 2019-05-13 00:04:37.613094 7f38ead03700 4 rocksdb: > [/build/ceph-12.2.10/src/rocksdb/db/db_impl_write.cc:684] reusing log 422507 > from recycle list > > 2019-05-13 00:04:37.613186 7f38ead03700 4 rocksdb: > [/build/ceph-12.2.10/src/rocksdb/db/db_impl_write.cc:725] [default] New > memtable created with log file: #422511. Immutable memtables: 0. > > Any hints how to find more details about the origin of this problem? > How can we solve that? > > Regards > Marc > > Am 28.01.19 um 22:27 schrieb Marc Schöchlin: >> Hello cephers, >> >> as described - we also have the slow requests in our setup. >> >> We recently updated from ceph 12.2.4 to 12.2.10, updated Ubuntu 16.04 to the >> latest patchlevel (with kernel 4.15.0-43) and applied dell firmware 2.8.0. >> >> On 12.2.5 (before updating the cluster) we had in a frequency of 10min to >> 30minutes in the entire deepscrub-window between 8:00 PM and 6:00 AM. >> Especially between 04:00AM and 06:00 AM when when we sequentially create a >> rbd snapshots for every rbd image and delete a outdated snapshot (we hold 3 >> snapshots per rbd device). >> >> After the upgrade to 12.2.10 (and the other patches) slow requests seems to >> be reduced, but they still occur after the snapshot creation/deletion >> procedure. >> Today we changed the time of the creation/deletion procedure from 4:00 AM to >> 7:30PM and we experienced slow request right in the the snapshot process at >> 8:00PM. >> >> The slow requests only happen on a certain storage class osds (30 * >> 8GB spinners) - i.e ssd osds do not have this problem on the same cluster >> The pools which use this storage class are loaded by 80% write requests. >> >> Our configuration looks like this: >> --- >> bluestore cache kv max = 2147483648 >> bluestore cache kv ratio = 0.9 >> bluestore cache meta ratio = 0.1 >> bluestore cache size hdd = 10737418240 osd deep scrub interval = >> 2592000 osd scrub begin hour = 19 osd scrub end hour = 6 osd scrub >> load threshold = 4 osd scrub sleep = 0.3 osd max trimming pgs = 2 >> --- >> We do not have so much devices in this storage class (a enhancement is >> in progress to get more iops) >> >> What can i do to decrease the impact of snaptrims to prevent slow requests? >> (i.e. reduce "osd max trimming pgs" to "1") >> >> Regards >> Marc Schöchlin >> >> Am 03.09.18 um 10:13 schrieb Marc Schöchlin: >>> Hi, >>> >>> we are also experiencing this type of behavior for some weeks on our >>> not so performance critical hdd pools. >>> We haven't spent so much time on this problem, because there are >>> currently more important tasks - but here are a few details: >>> >>> Running the following loop results in the following output: >>> >>> while true; do ceph health|grep -q HEALTH_OK || (date; ceph health >>> detail); sleep 2; done >>> >>> Sun Sep 2 20:59:47 CEST 2018 >>> HEALTH_WARN 4 slow requests are blocked > 32 sec REQUEST_SLOW 4 slow >>> requests are blocked > 32 sec >>> 4 ops are blocked > 32.768 sec >>> osd.43 has blocked requests > 32.768 sec Sun Sep 2 20:59:50 CEST >>> 2018 HEALTH_WARN 4 slow requests are blocked > 32 sec REQUEST_SLOW 4 >>> slow requests are blocked > 32 sec >>> 4 ops are blocked > 32.768 sec >>> osd.43 has blocked requests > 32.768 sec Sun Sep 2 20:59:52 CEST >>> 2018 HEALTH_OK Sun Sep 2 21:00:28 CEST 2018 HEALTH_WARN 1 slow >>> requests are blocked > 32 sec REQUEST_SLOW 1 slow requests are >>> blocked > 32 sec >>> 1 ops are blocked > 32.768 sec >>> osd.41 has blocked requests > 32.768 sec Sun Sep 2 21:00:31 CEST >>> 2018 HEALTH_WARN 7 slow requests are blocked > 32 sec REQUEST_SLOW 7 >>> slow requests are blocked > 32 sec >>> 7 ops are blocked > 32.768 sec >>> osds 35,41 have blocked requests > 32.768 sec Sun Sep 2 21:00:33 >>> CEST 2018 HEALTH_WARN 7 slow requests are blocked > 32 sec >>> REQUEST_SLOW 7 slow requests are blocked > 32 sec >>> 7 ops are blocked > 32.768 sec >>> osds 35,51 have blocked requests > 32.768 sec Sun Sep 2 21:00:35 >>> CEST 2018 HEALTH_WARN 7 slow requests are blocked > 32 sec >>> REQUEST_SLOW 7 slow requests are blocked > 32 sec >>> 7 ops are blocked > 32.768 sec >>> osds 35,51 have blocked requests > 32.768 sec >>> >>> Our details: >>> >>> * system details: >>> * Ubuntu 16.04 >>> * Kernel 4.13.0-39 >>> * 30 * 8 TB Disk (SEAGATE/ST8000NM0075) >>> * 3* Dell Power Edge R730xd (Firmware 2.50.50.50) >>> * Intel(R) Xeon(R) CPU E5-2680 v4 @ 2.40GHz >>> * 2*10GBITS SFP+ Network Adapters >>> * 192GB RAM >>> * Pools are using replication factor 3, 2MB object size, >>> 85% write load, 1700 write IOPS/sec >>> (ops mainly between 4k and 16k size), 300 read IOPS/sec >>> * we have the impression that this appears on deepscrub/scrub activity. >>> * Ceph 12.2.5, we alread played with the osd settings OSD Settings >>> (our assumtion was that the problem is related to rocksdb compaction) >>> bluestore cache kv max = 2147483648 >>> bluestore cache kv ratio = 0.9 >>> bluestore cache meta ratio = 0.1 >>> bluestore cache size hdd = 10737418240 >>> * this type problem only appears on hdd/bluestore osds, ssd/bluestore >>> osds did never experienced that problem >>> * the system is healthy, no swapping, no high load, no errors in >>> dmesg >>> >>> I attached a log excerpt of osd.35 - probably this is useful for >>> investigating the problem is someone owns deeper bluestore knowledge. >>> (slow requests appeared on Sun Sep 2 21:00:35) >>> >>> Regards >>> Marc >>> >>> >>> Am 02.09.2018 um 15:50 schrieb Brett Chancellor: >>>> The warnings look like this. >>>> >>>> 6 ops are blocked > 32.768 sec on osd.219 >>>> 1 osds have slow requests >>>> >>>> On Sun, Sep 2, 2018, 8:45 AM Alfredo Deza <ad...@redhat.com >>>> <mailto:ad...@redhat.com>> wrote: >>>> >>>> On Sat, Sep 1, 2018 at 12:45 PM, Brett Chancellor >>>> <bchancel...@salesforce.com <mailto:bchancel...@salesforce.com>> >>>> wrote: >>>> > Hi Cephers, >>>> > I am in the process of upgrading a cluster from Filestore to >>>> bluestore, >>>> > but I'm concerned about frequent warnings popping up against the new >>>> > bluestore devices. I'm frequently seeing messages like this, >>>> although the >>>> > specific osd changes, it's always one of the few hosts I've >>>> converted to >>>> > bluestore. >>>> > >>>> > 6 ops are blocked > 32.768 sec on osd.219 >>>> > 1 osds have slow requests >>>> > >>>> > I'm running 12.2.4, have any of you seen similar issues? It >>>> seems as though >>>> > these messages pop up more frequently when one of the bluestore >>>> pgs is >>>> > involved in a scrub. I'll include my bluestore creation process >>>> below, in >>>> > case that might cause an issue. (sdb, sdc, sdd are SATA, sde and >>>> sdf are >>>> > SSD) >>>> >>>> Would be useful to include what those warnings say. The ceph-volume >>>> commands look OK to me >>>> >>>> > >>>> > >>>> > ## Process used to create osds >>>> > sudo ceph-disk zap /dev/sdb /dev/sdc /dev/sdd /dev/sdd /dev/sde >>>> /dev/sdf >>>> > sudo ceph-volume lvm zap /dev/sdb >>>> > sudo ceph-volume lvm zap /dev/sdc >>>> > sudo ceph-volume lvm zap /dev/sdd >>>> > sudo ceph-volume lvm zap /dev/sde >>>> > sudo ceph-volume lvm zap /dev/sdf >>>> > sudo sgdisk -n 0:2048:+133GiB -t 0:FFFF -c 1:"ceph block.db sdb" >>>> /dev/sdf >>>> > sudo sgdisk -n 0:0:+133GiB -t 0:FFFF -c 2:"ceph block.db sdc" >>>> /dev/sdf >>>> > sudo sgdisk -n 0:0:+133GiB -t 0:FFFF -c 3:"ceph block.db sdd" >>>> /dev/sdf >>>> > sudo sgdisk -n 0:0:+133GiB -t 0:FFFF -c 4:"ceph block.db sde" >>>> /dev/sdf >>>> > sudo ceph-volume lvm create --bluestore --crush-device-class hdd >>>> --data >>>> > /dev/sdb --block.db /dev/sdf1 >>>> > sudo ceph-volume lvm create --bluestore --crush-device-class hdd >>>> --data >>>> > /dev/sdc --block.db /dev/sdf2 >>>> > sudo ceph-volume lvm create --bluestore --crush-device-class hdd >>>> --data >>>> > /dev/sdd --block.db /dev/sdf3 >>>> > >>>> > >>>> > _______________________________________________ >>>> > ceph-users mailing list >>>> > ceph-users@lists.ceph.com <mailto:ceph-users@lists.ceph.com> >>>> > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >>>> > >>>> >>>> >>>> >>>> _______________________________________________ >>>> ceph-users mailing list >>>> ceph-users@lists.ceph.com >>>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >>> _______________________________________________ >>> ceph-users mailing list >>> ceph-users@lists.ceph.com >>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >> _______________________________________________ >> ceph-users mailing list >> ceph-users@lists.ceph.com >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >
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