[root@localhost ~]# docker exec ceph_osd_0 ceph -s
    cluster 5fba2fbc-551d-11e5-a8ce-01ef4c5cf93c
     health HEALTH_WARN
            too many PGs per OSD (512 > max 300)
     monmap e1: 1 mons at {localhost=10.102.22.98:6789/0}
            election epoch 2, quorum 0 localhost
     osdmap e28: 1 osds: 1 up, 1 in
      pgmap v170: 512 pgs, 4 pools, 292 MB data, 44 objects
            331 MB used, 25255 MB / 25586 MB avail
                 512 active+clean


[root@localhost ~]# docker exec ceph_mon ceph -s
    cluster 5fba2fbc-551d-11e5-a8ce-01ef4c5cf93c
     health HEALTH_WARN
            too many PGs per OSD (512 > max 300)
     monmap e1: 1 mons at {localhost=10.102.22.98:6789/0}
            election epoch 2, quorum 0 localhost
     osdmap e28: 1 osds: 1 up, 1 in
      pgmap v170: 512 pgs, 4 pools, 292 MB data, 44 objects
            331 MB used, 25255 MB / 25586 MB avail
                 512 active+clean