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:ceph-users-bounces@xxxxxxxxxxxxxx] On Behalf Of Stéphane Klein
Sent: 22 December 2016 17:04
To: ceph-users <ceph-users@xxxxxxxxxxxxxx>
Subject: How can I debug "rbd list" hang? 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}
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?
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