Hi Robert and Paul, a quick update. I restarted all OSDs today to activate osd_op_queue_cut_off=high. I run into a serious problem right after that. The standby-replay MDS daemons started missing mon beacons and were killed by the mons: ceph-01 journal: debug [...] log [INF] Standby daemon mds.ceph-12 is not responding, dropping it Apparently, one also needs to set this on the MDSes: ceph config set mds osd_op_queue_cut_off high This also requires a restart to become active. After that, everything seems to work again. The question that remains is: Do I need to change this for any other daemon? I will repeat the performance tests later and post results. On observation is, that an MDS fail-over was a factor of 5-10 faster with the cut-off set to high. Best regards, ================= Frank Schilder AIT Risø Campus Bygning 109, rum S14 _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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