[root@MON_137 ceph-deploy]# ceph mds dump
dumped mdsmap epoch 106
epoch   106
flags   0
created 2014-12-17 09:49:28.532342
modified        2014-12-19 14:09:40.336673
tableserver     0
root    0
session_timeout 60
session_autoclose       300
max_file_size   1099511627776
last_failure    0
last_failure_osd_epoch  380
compat  compat={},rocompat={},incompat={1=base v0.20,2=client writeable ranges,3=default file layouts on dirs,4=dir inode in separate object,5=mds uses versioned encoding,6=dirfrag is stored in omap}
max_mds 1
in      0
up      {0=9133}
failed
stopped
data_pools      0
metadata_pool   1
inline_data     disabled
9133:   10.118.202.239:6801/10828 'ceph239' mds.0.12 up:active seq 7 laggy since 2014-12-19 14:00:50.754821