ceph/doc/config-ref/mon-config.rst

=======================
 Monitor Configuration
=======================



+-----------------------------------+----------------+---------------+-----------------------------------------------------------+
| Setting                           | Type           | Default Value | Description                                               |
+===================================+================+===============+===========================================================+
| ``mon data``                      | String         | ""            |                                                           |
+-----------------------------------+----------------+---------------+-----------------------------------------------------------+
| ``mon sync fs threshold``         | 32-bit Integer | 5             | // sync when writing this many objects; 0 to disable.     |
+-----------------------------------+----------------+---------------+-----------------------------------------------------------+
| ``mon tick interval``             | 32-bit Integer | 5             |                                                           |
+-----------------------------------+----------------+---------------+-----------------------------------------------------------+
| ``mon subscribe interval``        | Double         | 300           |                                                           |
+-----------------------------------+----------------+---------------+-----------------------------------------------------------+
| ``mon osd auto mark in``          | Boolean        | false         |         // mark any booting osds 'in'                     |
+-----------------------------------+----------------+---------------+-----------------------------------------------------------+
| ``mon osd auto mark auto out in`` | Boolean        | true          | // mark booting auto-marked-out osds 'in'                 |
+-----------------------------------+----------------+---------------+-----------------------------------------------------------+
| ``mon osd auto mark new in``      | Boolean        | true          |      // mark booting new osds 'in'                        |
+-----------------------------------+----------------+---------------+-----------------------------------------------------------+
| ``mon osd down out interval``     | 32-bit Integer | 300           | // seconds                                                |
+-----------------------------------+----------------+---------------+-----------------------------------------------------------+
| ``mon lease``                     | Float          | 5             |       // lease interval                                   |
+-----------------------------------+----------------+---------------+-----------------------------------------------------------+
| ``mon lease renew interval``      | Float          | 3             | // on leader | to renew the lease                         |
+-----------------------------------+----------------+---------------+-----------------------------------------------------------+
| ``mon lease ack timeout``         | Float          | 10.0          | // on leader | if lease isn't acked by all peons          |
+-----------------------------------+----------------+---------------+-----------------------------------------------------------+
| ``mon clock drift allowed``       | Float          | .050          | // allowed clock drift between monitors                   |
+-----------------------------------+----------------+---------------+-----------------------------------------------------------+
| ``mon clock drift warn backoff``  | Float          | 5             | // exponential backoff for clock drift warnings           |
+-----------------------------------+----------------+---------------+-----------------------------------------------------------+
| ``mon accept timeout``            | Float          | 10.0          |    // on leader | if paxos update isn't accepted          |
+-----------------------------------+----------------+---------------+-----------------------------------------------------------+
| ``mon pg create interval``        | Float          | 30.0          | // no more than every 30s                                 |
+-----------------------------------+----------------+---------------+-----------------------------------------------------------+
| ``mon pg stuck threshold``        | 32-bit Integer | 300           | // number of seconds after which pgs can be considered    |
+-----------------------------------+----------------+---------------+-----------------------------------------------------------+
| ``mon osd full ratio``            | Float          | .95           | // what % full makes an OSD "full"                        |
+-----------------------------------+----------------+---------------+-----------------------------------------------------------+
| ``mon osd nearfull ratio``        | Float          | .85           | // what % full makes an OSD near full                     |
+-----------------------------------+----------------+---------------+-----------------------------------------------------------+
| ``mon globalid prealloc``         | 32-bit Integer | 100           |   // how many globalids to prealloc                       |
+-----------------------------------+----------------+---------------+-----------------------------------------------------------+
| ``mon osd report timeout``        | 32-bit Integer | 900           |  // grace period before declaring unresponsive OSDs dead  |
+-----------------------------------+----------------+---------------+-----------------------------------------------------------+
| ``mon force standby active``      | Boolean        | true          | // should mons force standby-replay mds to be active      |
+-----------------------------------+----------------+---------------+-----------------------------------------------------------+
| ``mon min osdmap epochs``         | 32-bit Integer | 500           |                                                           |
+-----------------------------------+----------------+---------------+-----------------------------------------------------------+
| ``mon max pgmap epochs``          | 32-bit Integer | 500           |                                                           |
+-----------------------------------+----------------+---------------+-----------------------------------------------------------+
| ``mon max log epochs``            | 32-bit Integer | 500           |                                                           |
+-----------------------------------+----------------+---------------+-----------------------------------------------------------+
| ``mon probe timeout``             | Double         | 2.0           |                                                           |
+-----------------------------------+----------------+---------------+-----------------------------------------------------------+
| ``mon slurp timeout``             | Double         | 10.0          |                                                           |
+-----------------------------------+----------------+---------------+-----------------------------------------------------------+

inactive | unclean | or stale (see doc/control.rst under dump stuck for more info |