Hi, "filestore_queue_max_ops": "50", "filestore_flusher": "true", Just checked that this options are set with values above instead of config` 500 and 0 as mentioned in docs, and second option has an observable performance impact when enabled. Also there is some wild magic, I`m not able to set bool value to the false at runtime, instead of it, value dropped to true even if set to false at start of an osd in config: ceph --keyfile admin osd tell \* injectargs "--filestore-flusher 0" 2013-02-25 01:17:29.255987 osd.14 [INF] failed to parse arguments: 0 2013-02-25 01:17:29.256006 osd.14 [INF] applying configuration change: filestore_flusher = 'true' _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com