Hi, > I just noticed a strange behavior on one OSD (and only one, other OSDs on the same server didn’t show that behavior) in a ceph-cluster (all 0.94.2 on Debian 7 with a self-made 4.1 Kernel). > The OSD started to accumulate slow requests, a restart didn’t help. > > After a few seconds the log is filled with lines like these: > -91> 2015-07-20 21:55:03.537385 7f9e20ec3700 0 -- [<OwnIPv6>]:6814/1376041 >> [<OwnIPv6>]:0/2078381 pipe(0x5396f000 sd=16371 :6814 s=0 pgs=0 cs=0 l=1 c=0x538e7340).accept replacing existing (lossy) channel (new one lossy=1) > (Full example after startup https://paste.ee/p/HfTlp ) > > With nearly 100% CPU usage. > > After some time the slow requests accumulate so I restart the OSD, if I wait longer I observed a termination at the end (longer version: https://paste.ee/p/XvD0o ): a short followup: The problem disappeared after some restarts. So The cluster ist healthy again and I’m mildly irritated. But that also means, I can’t provide more debug-Information. greetings Johannes _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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