ceph/doc/rados/configuration/pool-pg-config-ref.rst

   1 ======================================
   2  Pool, PG and CRUSH Config Reference
   3 ======================================
   4
   5 .. index:: pools; configuration
   6
   7 When you create pools and set the number of placement groups (PGs) for each, Ceph
   8 uses default values when you don't specifically override the defaults. **We
   9 recommend** overriding some of the defaults. Specifically, we recommend setting
  10 a pool's replica size and overriding the default number of placement groups. You
  11 can specifically set these values when running `pool`_ commands. You can also
  12 override the defaults by adding new ones in the ``[global]`` section of  your
  13 Ceph configuration file.
  14
  15
  16 .. literalinclude:: pool-pg.conf
  17    :language: ini
  18
  19 .. confval:: mon_max_pool_pg_num
  20 .. confval:: mon_pg_stuck_threshold
  21 .. confval:: mon_pg_warn_min_per_osd
  22 .. confval:: mon_pg_warn_min_objects
  23 .. confval:: mon_pg_warn_min_pool_objects
  24 .. confval:: mon_pg_check_down_all_threshold
  25 .. confval:: mon_pg_warn_max_object_skew
  26 .. confval:: mon_delta_reset_interval
  27 .. confval:: osd_crush_chooseleaf_type
  28 .. confval:: osd_crush_initial_weight
  29 .. confval:: osd_pool_default_crush_rule
  30 .. confval:: osd_pool_erasure_code_stripe_unit
  31 .. confval:: osd_pool_default_size
  32 .. confval:: osd_pool_default_min_size
  33 .. confval:: osd_pool_default_pg_num
  34 .. confval:: osd_pool_default_pgp_num
  35 .. confval:: osd_pool_default_pg_autoscale_mode
  36 .. confval:: osd_pool_default_flags
  37 .. confval:: osd_max_pgls
  38 .. confval:: osd_min_pg_log_entries
  39 .. confval:: osd_max_pg_log_entries
  40 .. confval:: osd_default_data_pool_replay_window
  41 .. confval:: osd_max_pg_per_osd_hard_ratio
  42
  43 .. _pool: ../../operations/pools
  44 .. _Monitoring OSDs and PGs: ../../operations/monitoring-osd-pg#peering
  45 .. _Weighting Bucket Items: ../../operations/crush-map#weightingbucketitems