Hi,
you need to fix the non active PGs first. They are also probably the reason for the blocked requests.
Regards, Burkhard On 9/24/19 1:30 PM, Thomas wrote:
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@ceph.io To unsubscribe send an email to ceph-users-le...@ceph.io
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