doc/cephfs/client-config-ref.rst
Certain client configurations can be applied at runtime. To check if a configuration option can be applied (taken into effect by a client) at runtime, use the config help command::
ceph config help debug_client debug_client - Debug level for client (str, advanced) Default: 0/5 Can update at runtime: true
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.
config help tells if a given configuration can be applied at runtime along with the defaults and a description of the configuration option.
To update a configuration option at runtime, use the config set command::
ceph config set client debug_client 20/20
Note that this changes a given configuration for all clients.
To check configured options use the config get command::
ceph config get client
WHO MASK LEVEL OPTION VALUE RO
client advanced debug_client 20/20
global advanced osd_pool_default_min_size 1
global advanced osd_pool_default_size 3
.. confval:: client_acl_type .. confval:: client_cache_mid .. confval:: client_cache_size .. confval:: client_caps_release_delay .. confval:: client_debug_force_sync_read .. confval:: client_dirsize_rbytes .. confval:: client_fscrypt_as .. confval:: client_fscrypt_dummy_encryption .. confval:: client_max_inline_size .. confval:: client_metadata .. confval:: client_mount_gid .. confval:: client_mount_timeout .. confval:: client_mount_uid .. confval:: client_mountpoint .. confval:: client_oc .. confval:: client_oc_max_dirty .. confval:: client_oc_max_dirty_age .. confval:: client_oc_max_objects .. confval:: client_oc_size .. confval:: client_oc_target_dirty .. confval:: client_permissions .. confval:: client_quota_df .. confval:: client_readahead_max_bytes .. confval:: client_readahead_max_periods .. confval:: client_readahead_min .. confval:: client_reconnect_stale .. confval:: client_respect_subvolume_snapshot_visibility .. confval:: client_snapdir .. confval:: client_tick_interval .. confval:: client_use_random_mds .. confval:: fuse_default_permissions .. confval:: fuse_max_write .. confval:: fuse_disable_pagecache
Developer Options #################
.. important:: These options are internal. They are listed here only to complete the list of options.
.. confval:: client_debug_getattr_caps .. confval:: client_debug_inject_tick_delay .. confval:: client_inject_fixed_oldest_tid .. confval:: client_inject_release_failure .. confval:: client_trace