(mistake, copy to list) John Spray пишет: >> Looks happened both time at night - probably on long backup/write operations >> (something like compressed local root backup to cephfs). Also all local mounts >> inside cluster (fuse) moved to automout to reduce clients pressure. Still 5 >> permanent kernel clients. >> >> Now I remount all but 1 kernel clients. Message persist. > > There's probably a reason you haven't already done this, but the next > logical debug step would be to try unmounting that last kernel client > (and mention what version it is) 4.5.0. This VM now finally was deadlocked in some places (may be there problem from same roots) and hard restarted, now mounted again. Message persists. Just near week ago I remove some of additional mount options. Started from old days (when VMs was on same servers with cluster) I mounts with "wsize=131072,rsize=131072,write_congestion_kb=128,readdir_max_bytes=131072" (and net.ipv4.tcp_notsent_lowat = 131072) to conserve RAM. Obtaining good servers for VMs I remove it. May be better turn it back for better congestion quantum. -- WBR, Dzianis Kahanovich AKA Denis Kaganovich, http://mahatma.bspu.unibel.by/ _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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