https://github.com/ceph/ceph/pull/48070 may be relevant. I think this may have gone out in 16.2.11. I would tend to agree, personally this feels quite noisy at default logging levels for production clusters. David On Thu, Aug 31, 2023, at 11:17, Zakhar Kirpichenko wrote: > This is happening to our 16.2.14 cluster as well. I'm not sure whether this > was happening before the upgrade to 16.2.14. > > /Z > > On Thu, 31 Aug 2023, 17:49 Adrien Georget, <adrien.georget(a)cc.in2p3.fr> > wrote: > >> Hello, >> >> On our 16.2.14 CephFS cluster, all OSDs are spamming logs with messages >> like "log_channel(cluster) log [DBG] : xxx scrub starts". >> All OSDs are concerned, for different PGs. Cluster is healthy without >> any recovery ops. >> >> For a single PG, we can have hundreds of scrub starts msg in less than >> an hour. With 720 OSDs (8k PG, EC8+2), it can lead to millions of >> messages by hour... >> For example with PG 3.1d57 or||3.1988 : >> >> |Aug 31 16:02:09 >> ceph-86cd8a68-7649-11ed-b2be-5cba2c7fdb30-osd-58[1310188]: debug >> 2023-08-31T14:02:09.453+0000 7fdab1ec4700 0 log_channel(cluster) log >> [DBG] : 3.1d57 scrub starts|| >> ||Aug 31 16:02:11 >> ceph-86cd8a68-7649-11ed-b2be-5cba2c7fdb30-osd-58[1310188]: debug >> 2023-08-31T14:02:11.446+0000 7fdab1ec4700 0 log_channel(cluster) log >> [DBG] : 3.1d57 scrub starts|| >> ||Aug 31 16:02:12 >> ceph-86cd8a68-7649-11ed-b2be-5cba2c7fdb30-osd-58[1310188]: debug >> 2023-08-31T14:02:12.428+0000 7fdab1ec4700 0 log_channel(cluster) log >> [DBG] : 3.1d57 scrub starts|| >> ||Aug 31 16:02:13 >> ceph-86cd8a68-7649-11ed-b2be-5cba2c7fdb30-osd-58[1310188]: debug >> 2023-08-31T14:02:13.456+0000 7fdab1ec4700 0 log_channel(cluster) log >> [DBG] : 3.1d57 scrub starts|| >> ||Aug 31 16:02:14 >> ceph-86cd8a68-7649-11ed-b2be-5cba2c7fdb30-osd-58[1310188]: debug >> 2023-08-31T14:02:14.431+0000 7fdab1ec4700 0 log_channel(cluster) log >> [DBG] : 3.1d57 scrub starts|| >> ||Aug 31 16:02:15 >> ceph-86cd8a68-7649-11ed-b2be-5cba2c7fdb30-osd-58[1310188]: debug >> 2023-08-31T14:02:15.475+0000 7fdab1ec4700 0 log_channel(cluster) log >> [DBG] : 3.1d57 scrub starts|| >> ||Aug 31 16:02:21 >> ceph-86cd8a68-7649-11ed-b2be-5cba2c7fdb30-osd-58[1310188]: debug >> 2023-08-31T14:02:21.516+0000 7fdab1ec4700 0 log_channel(cluster) log >> [DBG] : 3.1d57 scrub starts|| >> ||Aug 31 16:02:23 >> ceph-86cd8a68-7649-11ed-b2be-5cba2c7fdb30-osd-58[1310188]: debug >> 2023-08-31T14:02:23.555+0000 7fdab1ec4700 0 log_channel(cluster) log >> [DBG] : 3.1d57 scrub starts|| >> ||Aug 31 16:02:24 >> ceph-86cd8a68-7649-11ed-b2be-5cba2c7fdb30-osd-58[1310188]: debug >> 2023-08-31T14:02:24.510+0000 7fdab1ec4700 0 log_channel(cluster) log >> [DBG] : 3.1d57 deep-scrub starts|| >> >> Aug 31 16:02:10 >> ceph-86cd8a68-7649-11ed-b2be-5cba2c7fdb30-osd-276[1325507]: debug >> 2023-08-31T14:02:10.384+0000 7f0606ce3700 0 log_channel(cluster) log >> [DBG] : 3.1988 deep-scrub starts >> Aug 31 16:02:11 >> ceph-86cd8a68-7649-11ed-b2be-5cba2c7fdb30-osd-276[1325507]: debug >> 2023-08-31T14:02:11.377+0000 7f0606ce3700 0 log_channel(cluster) log >> [DBG] : 3.1988 scrub starts >> Aug 31 16:02:13 >> ceph-86cd8a68-7649-11ed-b2be-5cba2c7fdb30-osd-276[1325507]: debug >> 2023-08-31T14:02:13.383+0000 7f0606ce3700 0 log_channel(cluster) log >> [DBG] : 3.1988 scrub starts >> Aug 31 16:02:15 >> ceph-86cd8a68-7649-11ed-b2be-5cba2c7fdb30-osd-276[1325507]: debug >> 2023-08-31T14:02:15.383+0000 7f0606ce3700 0 log_channel(cluster) log >> [DBG] : 3.1988 deep-scrub starts >> Aug 31 16:02:17 >> ceph-86cd8a68-7649-11ed-b2be-5cba2c7fdb30-osd-276[1325507]: debug >> 2023-08-31T14:02:17.336+0000 7f0606ce3700 0 log_channel(cluster) log >> [DBG] : 3.1988 scrub starts >> Aug 31 16:02:19 >> ceph-86cd8a68-7649-11ed-b2be-5cba2c7fdb30-osd-276[1325507]: debug >> 2023-08-31T14:02:19.328+0000 7f0606ce3700 0 log_channel(cluster) log >> [DBG] : 3.1988 scrub starts >> || >> ||PG_STAT OBJECTS MISSING_ON_PRIMARY DEGRADED MISPLACED UNFOUND >> BYTES OMAP_BYTES* OMAP_KEYS* LOG DISK_LOG STATE >> STATE_STAMP VERSION REPORTED >> UP UP_PRIMARY >> ACTING ACTING_PRIMARY >> LAST_SCRUB SCRUB_STAMP LAST_DEEP_SCRUB >> DEEP_SCRUB_STAMP SNAPTRIMQ_LEN|| >> ||3.1d57 52757 0 0 0 0 >> 167596026648 0 0 1799 1799 >> active+clean 2023-08-31T14:27:24.025755+0000 236010'4532653 >> 236011:8745383 [58,421,335,9,59,199,390,481,425,480] 58 >> [58,421,335,9,59,199,390,481,425,480] 58 231791'4531915 >> *2023-08-29T22:41:12.266874+0000* 229377'4526369 >> *2023-08-26T04:30:42.894505+0000* 0| >> |3.1988 52867 0 0 0 0 >> 168603872808 0 0 1811 1811 >> active+clean 2023-08-31T14:32:13.361420+0000 236018'4241611 >> 236018:9815753 [276,342,345,299,210,349,85,481,446,46] 276 >> [276,342,345,299,210,349,85,481,446,46] 276 236012'4241602 >> *2023-08-31T14:32:13.361343+0000* 228157'4229095 >> *2023-08-24T05:59:16.573471+0000*| >> >> However scrub is working fine, scrub stamp looks OK (2023-08-29 or >> 2023-08-31) as we have default value for scrub interval (min 24h / max >> 7days). >> I tried to play with scrub parameters like osd_scrub_load_threshold >> (->20), osd_max_scrubs (->3), osd_scrub_*_interval but nothing better. >> >> Any idea what's going on and how to fix this? >> >> Cheers, >> Adrien >> || >> _______________________________________________ >> ceph-users mailing list -- ceph-users(a)ceph.io >> To unsubscribe send an email to ceph-users-leave(a)ceph.io >> > _______________________________________________ > ceph-users mailing list -- ceph-users(a)ceph.io > To unsubscribe send an email to ceph-users-leave(a)ceph.io