# ceph cli -h
 Monitor commands: 
 =================
cli cluster_log <channel> <priority:int> <message>   Send message to the cluster log. :param channel: The 
                                                      log channel. This can be 'cluster', 'audit', ... :
                                                      type channel: str :param priority: The log message 
                                                      priority. This can be CLUSTER_LOG_PRIO_DEBUG, 
                                                      CLUSTER_LOG_PRIO_INFO, CLUSTER_LOG_PRIO_SEC, 
                                                      CLUSTER_LOG_PRIO_WARN or CLUSTER_LOG_PRIO_ERROR. :
                                                      type priority: int :param message: The message to 
                                                      log. :type message: str
cli get <data_name>                                  Called by the plugin to fetch named cluster-wide 
                                                      objects from ceph-mgr. :param str data_name: Valid 
                                                      things to fetch are osd_crush_map_text, osd_map, 
                                                      osd_map_tree, osd_map_crush, config, mon_map, fs_
                                                      map, osd_metadata, pg_summary, io_rate, pg_dump, df,
                                                      osd_stats, health, mon_status, devices, device 
                                                      <devid>, pg_stats, pool_stats, pg_ready, osd_ping_
                                                      times. Note: All these structures have their own 
                                                      JSON representations: experiment or look at the C++ 
                                                      ``dump()`` methods to learn about them.
cli get_all_perf_counters [<prio_limit:int>]         Return the perf counters currently known to this 
 [<services>]                                         ceph-mgr instance, filtered by priority equal to or 
                                                      greater than `prio_limit`. The result is a map of 
                                                      string to dict, associating services (like "osd.123"
                                                      ) with their counters. The counter dict for each 
                                                      service maps counter paths to a counter info 
                                                      structure, which is the information from the schema,
                                                      plus an additional "value" member with the latest 
                                                      value.