ceph/doc/mgr/mds_autoscaler.rst

   1 MDS Autoscaler Module
   2 =====================
   3
   4 The MDS Autoscaler Module monitors file systems to ensure sufficient MDS
   5 daemons are available. It works by adjusting the placement specification for
   6 the orchestrator backend of the MDS service. To enable, use:
   7
   8 .. sh:
   9
  10    ceph mgr module enable mds_autoscaler
  11
  12 The module will monitor the following file system settings to inform
  13 placement count adjustments:
  14
  15 - ``max_mds`` file system setting
  16 - ``standby_count_wanted`` file system setting
  17
  18 The Ceph monitor daemons are still responsible for promoting or stopping MDS
  19 according to these settings. The ``mds_autoscaler`` simply adjusts the
  20 number of MDS which are spawned by the orchestrator.
  21
  22 .. note: There is no CLI or module configurations as of now. Enable or disable
  23    the module to turn on or off.