Dear cephers,
I'm sitting with a major ceph outage again. The mon/mgr hosts suffer from a packet storm of ceph traffic between ceph fs clients and the mons. No idea why this is happening.
Main problem is, that I can't get through to the cluster. Admin commands hang forever:
[root@gnosis ~]# ceph osd set nodown
However, "ceph status" returns and shows me that I need to do something:
[root@gnosis ~]# ceph status
cluster:
id: ---
health: HEALTH_WARN
2 MDSs report slow metadata IOs
1 MDSs report slow requests
8 osds down
services:
mon: 3 daemons, quorum ceph-01,ceph-02,ceph-03
mgr: ceph-01(active, starting), standbys: ceph-02, ceph-03
mds: con-fs2-1/1/1 up {0=ceph-08=up:active}, 1 up:standby-replay
osd: 288 osds: 208 up, 216 in; 153 remapped pgs
data:
pools: 10 pools, 2545 pgs
objects: 86.71 M objects, 218 TiB
usage: 277 TiB used, 1.5 PiB / 1.8 PiB avail
pgs: 2542 active+clean
3 active+clean+scrubbing+deep
io:
client: 152 MiB/s rd, 72 MiB/s wr, 854 op/s rd, 796 op/s wr
Is there any way to get admin commands to the mons with higher priority?
Thanks and best regards,
=================
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
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