ceph/doc/cephfs/client-config-ref.rst

   1 Client Configuration
   2 ====================
   3
   4 Updating Client Configuration
   5 -----------------------------
   6
   7 Certain client configurations can be applied at runtime. To check if a configuration option can be applied (taken into affect by a client) at runtime, use the `config help` command::
   8
   9    ceph config help debug_client
  10     debug_client - Debug level for client
  11     (str, advanced)                                                                                                                      Default: 0/5
  12     Can update at runtime: true
  13
  14     The value takes the form 'N' or 'N/M' where N and M are values between 0 and 99.  N is the debug level to log (all values below this are included), and M is the level to gather and buffer in memory.  In the event of a crash, the most recent items <= M are dumped to the log file.
  15
  16 `config help` tells if a given configuration can be applied at runtime along with the defaults and a description of the configuration option.
  17
  18 To update a configuration option at runtime, use the `config set` command::
  19
  20    ceph config set client debug_client 20/20
  21
  22 Note that this changes a given configuration for all clients.
  23
  24 To check configured options use the `config get` command::
  25
  26    ceph config get client
  27     WHO    MASK LEVEL    OPTION                    VALUE     RO
  28     client      advanced debug_client              20/20
  29     global      advanced osd_pool_default_min_size 1
  30     global      advanced osd_pool_default_size     3
  31
  32 Client Config Reference
  33 ------------------------
  34
  35 .. confval:: client_acl_type
  36 .. confval:: client_cache_mid
  37 .. confval:: client_cache_size
  38 .. confval:: client_caps_release_delay
  39 .. confval:: client_debug_force_sync_read
  40 .. confval:: client_dirsize_rbytes
  41 .. confval:: client_max_inline_size
  42 .. confval:: client_metadata
  43 .. confval:: client_mount_gid
  44 .. confval:: client_mount_timeout
  45 .. confval:: client_mount_uid
  46 .. confval:: client_mountpoint
  47 .. confval:: client_oc
  48 .. confval:: client_oc_max_dirty
  49 .. confval:: client_oc_max_dirty_age
  50 .. confval:: client_oc_max_objects
  51 .. confval:: client_oc_size
  52 .. confval:: client_oc_target_dirty
  53 .. confval:: client_permissions
  54 .. confval:: client_quota_df
  55 .. confval:: client_readahead_max_bytes
  56 .. confval:: client_readahead_max_periods
  57 .. confval:: client_readahead_min
  58 .. confval:: client_reconnect_stale
  59 .. confval:: client_snapdir
  60 .. confval:: client_tick_interval
  61 .. confval:: client_use_random_mds
  62 .. confval:: fuse_default_permissions
  63 .. confval:: fuse_max_write
  64 .. confval:: fuse_disable_pagecache
  65
  66 Developer Options
  67 #################
  68
  69 .. important:: These options are internal. They are listed here only to complete the list of options.
  70
  71 .. confval:: client_debug_getattr_caps
  72 .. confval:: client_debug_inject_tick_delay
  73 .. confval:: client_inject_fixed_oldest_tid
  74 .. confval:: client_inject_release_failure
  75 .. confval:: client_trace