Try, in order: 1) You don’t say which release you’re running. You might try reverting to the wpq scheduler 2) ceph health detail - look at the lead OSDs of each stuck PG. Pick one and issue `ceph osd down` on it, see if that gooses any recovery 3) Edit your crushmap and increase the number of tries Also note that if your OSDs are all the same size, you have capacity you can’t use. ceph osd tree | grep host When the number of failure domains is not larger than your replication factor (presumably 3) you want the failure domains to be of equal size. I suspect you have 6 drives per node and one is dead? > On Jan 14, 2025, at 10:03 AM, Ml Ml <mliebherr99@xxxxxxxxxxxxxx> wrote: > > Hello List, > > i have this 3 node Setup with 17 hdds (new - spinning rust). > > After putting it all together and after resetting the manual > Rack-Placements back to default it seems to recover forever. > I also changed the pg placements at some time. > > The disks where very busy until this morning when i disabled scrubbing > to see if this would speed up the recovery. > > Here is my current status: > ---------------------------------------- > root@ceph12:~# ceph -s > cluster: > id: 2ed9f8fb-1316-4ef1-996d-a3223a3dd594 > health: HEALTH_WARN > noscrub,nodeep-scrub flag(s) set > > services: > mon: 3 daemons, quorum ceph10,ceph11,ceph12 (age 2h) > mgr: ceph11(active, since 3h), standbys: ceph10, ceph12 > osd: 17 osds: 17 up (since 3h), 17 in (since 11d); 18 remapped pgs > flags noscrub,nodeep-scrub > > data: > pools: 2 pools, 257 pgs > objects: 9.62M objects, 37 TiB > usage: 110 TiB used, 134 TiB / 244 TiB avail > pgs: 1534565/28857846 objects misplaced (5.318%) > 239 active+clean > 16 active+remapped+backfill_wait > 2 active+remapped+backfilling > > io: > recovery: 25 MiB/s, 6 objects/s > > I set: > ceph tell 'osd.*' injectargs --osd-max-backfills=6 --osd-recovery-max-active=9 > > My hourly recovery process seems not to really proceed (it decreeses > and increases again): > 5.410 > 5.036 > 5.269 > 5.008 > 5.373 > 5.769 > 5.555 > 5.103 > 5.067 > 5.135 > 5.409 > 5.417 > 5.373 > 5.197 > 5.090 > 5.458 > 5.204 > 5.339 > 5.164 > 5.425 > 5.692 > 5.383 > 5.726 > 5.492 > 6.694 > 6.576 > 6.362 > 6.243 > 6.011 > 5.880 > 5.589 > 5.433 > 5.846 > 5.378 > 5.184 > 5.647 > 5.374 > 5.513 > > root@ceph12:~# ceph osd perf (this is okay for spinning rust i guess) > osd commit_latency(ms) apply_latency(ms) > 17 0 0 > 13 0 0 > 11 57 57 > 9 4 4 > 0 0 0 > 1 79 79 > 14 43 43 > 2 0 0 > 3 0 0 > 16 43 43 > 4 33 33 > 5 0 0 > 6 0 0 > 7 0 0 > 10 0 0 > 12 0 0 > 8 48 48 > > iostat -xt 3 shows that they are busy but its not overloaded as i can tell. > > Any idea why it will only backfill 2? > How could i speed this up? > > My other cluster with 7 nodes and very old hdds and 45 OSDs can make > easily 76 objects/s > > Cheers, > Michael > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx > To unsubscribe send an email to ceph-users-leave@xxxxxxx _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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