I think you have probably just answered your previous question. I would guess pauserd and pausewr, pauses read and write IO, hence your command to list is being blocked on reads.
From: ceph-users [mailto:[email protected]] On Behalf Of Stéphane Klein Sent: 22 December 2016 17:04 To: ceph-users <[email protected]> Subject: [ceph-users] How can I debug "rbd list" hang? Hi, I have this status: root@ceph-mon-1:/home/vagrant# ceph status cluster 7ecb6ebd-2e7a-44c3-bf0d-ff8d193e03ac health HEALTH_WARN pauserd,pausewr,sortbitwise,require_jewel_osds flag(s) set monmap e1: 3 mons at {ceph-mon-1=172.28.128.2:6789/0,ceph-mon-2=172.28.128.3:6789/0,ceph-mon-3=172.28.128.4:6789/0 <http://172.28.128.2:6789/0,ceph-mon-2=172.28.128.3:6789/0,ceph-mon-3=172.28.128.4:6789/0> } election epoch 12, quorum 0,1,2 ceph-mon-1,ceph-mon-2,ceph-mon-3 osdmap e49: 4 osds: 4 up, 4 in flags pauserd,pausewr,sortbitwise,require_jewel_osds pgmap v266: 64 pgs, 1 pools, 77443 kB data, 35 objects 281 MB used, 1978 GB / 1979 GB avail 64 active+clean Why "rbd list" command hang? How can I debug that? Best regards, Stéphane -- Stéphane Klein <[email protected] <mailto:[email protected]> > blog: http://stephane-klein.info cv : http://cv.stephane-klein.info Twitter: http://twitter.com/klein_stephane
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