Thank you, Frank. Tbh, I think it doesn't matter if the number of manual compactions is for 24h or for a smaller period, as long as it's over a reasonable period of time, so that an average number of compactions per hour can be calculated. /Z On Fri, 13 Oct 2023 at 16:01, Frank Schilder <frans@dtu.dk> wrote:
Hi Zakhar,
I'm pretty sure you wanted the #manual compactions for an entire day, not from whenever the log starts to current time, which is most often not 23:59. You need to get the date from the previous day and make sure the log contains a full 00:00-23:59 window.
1) iotop results: TID PRIO USER DISK READ DISK WRITE SWAPIN IO COMMAND 2256 be/4 ceph 0.00 B 17.48 M 0.00 % 0.80 % ceph-mon --cluster ceph --setuser ceph --setgroup ceph --foreground -i ceph-01 --mon-data /var/lib/ceph/mon/ceph-ceph-01 --public-addr 192.168.32.65 [safe_timer] 2230 be/4 ceph 0.00 B 1514.19 M 0.00 % 0.37 % ceph-mon --cluster ceph --setuser ceph --setgroup ceph --foreground -i ceph-01 --mon-data /var/lib/ceph/mon/ceph-ceph-01 --public-addr 192.168.32.65 [rocksdb:low0] 2250 be/4 ceph 0.00 B 36.23 M 0.00 % 0.15 % ceph-mon --cluster ceph --setuser ceph --setgroup ceph --foreground -i ceph-01 --mon-data /var/lib/ceph/mon/ceph-ceph-01 --public-addr 192.168.32.65 [fn_monstore] 2231 be/4 ceph 0.00 B 50.52 M 0.00 % 0.02 % ceph-mon --cluster ceph --setuser ceph --setgroup ceph --foreground -i ceph-01 --mon-data /var/lib/ceph/mon/ceph-ceph-01 --public-addr 192.168.32.65 [rocksdb:high0] 2225 be/4 ceph 0.00 B 120.00 K 0.00 % 0.00 % ceph-mon --cluster ceph --setuser ceph --setgroup ceph --foreground -i ceph-01 --mon-data /var/lib/ceph/mon/ceph-ceph-01 --public-addr 192.168.32.65 [log]
2) manual compactions (over a full 24h window): 1882
3) monitor store.db size: 616M
4) cluster version and status:
ceph version 15.2.17 (8a82819d84cf884bd39c17e3236e0632ac146dc4) octopus (stable)
cluster: id: xxx health: HEALTH_WARN 1 large omap objects
services: mon: 5 daemons, quorum ceph-01,ceph-02,ceph-03,ceph-25,ceph-26 (age 7w) mgr: ceph-25(active, since 4w), standbys: ceph-26, ceph-01, ceph-03, ceph-02 mds: con-fs2:8 4 up:standby 8 up:active osd: 1284 osds: 1282 up (since 27h), 1282 in (since 3w)
task status:
data: pools: 14 pools, 25065 pgs objects: 2.18G objects, 3.9 PiB usage: 4.8 PiB used, 8.3 PiB / 13 PiB avail pgs: 25037 active+clean 26 active+clean+scrubbing+deep 2 active+clean+scrubbing
io: client: 1.7 GiB/s rd, 1013 MiB/s wr, 3.02k op/s rd, 1.78k op/s wr
Best regards, ================= Frank Schilder AIT Risø Campus Bygning 109, rum S14