Hi, If a host with a kernel mapped rbd image dies, it still keeps a watch on the rbd image header for a timeout that seems to be determined by ms_tcp_read_timeout ( default 15 minutes ) rather than osd_client_watch_timeout whereas according to the docs: "If the client loses its connection to the primary OSD for a watched object, the watch will be removed after a timeout configured with osd_client_watch_timeout." It is possible to force watch removal by blacklisting the failed host, but i was wondering if the above timeout is the correct behavior. this is using latest 10.2.5 Cheers /Maged _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com