Hi, ceph health reports 1 MDSs report slow metadata IOs 1 MDSs report slow requests This is the complete output of ceph -s: root@ld3955:~# ceph -s    cluster:      id:     6b1b5117-6e08-4843-93d6-2da3cf8a6bae      health: HEALTH_ERR              1 MDSs report slow metadata IOs              1 MDSs report slow requests              72 nearfull osd(s)              1 pool(s) nearfull              Reduced data availability: 33 pgs inactive, 32 pgs peering              Degraded data redundancy: 123285/153918525 objects degraded (0.080%), 27 pgs degraded, 27 pgs undersized              Degraded data redundancy (low space): 116 pgs backfill_toofull              3 pools have too many placement groups              54 slow requests are blocked > 32 sec              179 stuck requests are blocked > 4096 sec    services:      mon: 3 daemons, quorum ld5505,ld5506,ld5507 (age 21h)      mgr: ld5507(active, since 21h), standbys: ld5506, ld5505      mds: pve_cephfs:1 {0=ld3955=up:active} 1 up:standby      osd: 368 osds: 368 up, 368 in; 140 remapped pgs    data:      pools:   6 pools, 8872 pgs      objects: 51.31M objects, 196 TiB      usage:   591 TiB used, 561 TiB / 1.1 PiB avail      pgs:     0.372% pgs not active               123285/153918525 objects degraded (0.080%)               621911/153918525 objects misplaced (0.404%)               8714 active+clean               90   active+remapped+backfill_toofull               26   active+undersized+degraded+remapped+backfill_toofull               16   peering               16   remapped+peering               7    active+remapped+backfill_wait               1    activating               1    active+recovery_wait+degraded               1    active+recovery_wait+undersized+remapped In the log I find these relevant entries: 2019-09-24 13:24:37.073695 mds.ld3955 [WRN] 2 slow requests, 0 included below; oldest blocked for > 18618.873983 secs 2019-09-24 13:24:42.073757 mds.ld3955 [WRN] 2 slow requests, 0 included below; oldest blocked for > 18623.874055 secs 2019-09-24 13:24:47.073852 mds.ld3955 [WRN] 2 slow requests, 0 included below; oldest blocked for > 18628.874149 secs 2019-09-24 13:24:52.073941 mds.ld3955 [WRN] 2 slow requests, 0 included below; oldest blocked for > 18633.874237 secs 2019-09-24 13:24:57.074073 mds.ld3955 [WRN] 2 slow requests, 0 included below; oldest blocked for > 18638.874354 secs 2019-09-24 13:25:02.074118 mds.ld3955 [WRN] 2 slow requests, 0 included below; oldest blocked for > 18643.874415 secs Cephfs is residing on a pool "hdd" with dedicated HDDs (4x 17 1.6TB). This pool is used for RBDs, too. Question: How can I identify the 2 slow requests? And how can I kill these requests? Regards Thomas _______________________________________________ ceph-users mailing list -- ceph-users(a)ceph.io To unsubscribe send an email to ceph-users-leave(a)ceph.io