doc: add client config ref

Fixes: http://tracker.ceph.com/issues/16743

Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>

doc/cephfs/client-config-ref.rst

@@ -0,0 +1,198 @@
+========================
+ Client Config Reference
+========================
+
+``client acl type``
+
+:Description: Set to ``"posix_acl"`` to enable POSIX ACLs. Modifiable via ``--inject-args``.
+:Type: String
+:Default: ``""`` (N/A)
+
+``client cache mid``
+
+:Description: Set client cache mid-point. Modifiable via ``--inject-args``.
+:Type: Float
+:Default: ``0.75``
+
+``client_cache_size``
+
+:Description: Set client cache object count maximum. Modifiable via ``--inject-args``.
+:Type: Integer
+:Default: ``16384``
+
+``client_caps_release_delay``
+
+:Description: Delay between capability releases.
+:Type: Integer
+:Default: ``5`` (seconds)
+
+``client_debug_force_sync_read``
+
+:Description: Always read synchronously (go to osds).
+:Type: Boolean
+:Default: ``false``
+
+``client_debug_getattr_caps``
+
+:Description: Check if MDS reply contains wanted caps.
+:Type: Boolean
+:Default: ``false``
+
+``client_dirsize_rbytes``
+
+:Description: Use recursive size of directory for directory ``st_size`` stat member.
+:Type: Boolean
+:Default: ``true``
+
+``client_max_inline_size``
+
+:Description: Maximum size of inlined data stored in a file inode (rather than in a separate data object in RADOS). This setting only applies if the ``inline_data`` flag is set on the MDSMap.
+:Type: Integer
+:Default: ``4096``
+
+``client_metadata``
+
+:Description: Comma-delimited strings for client metadata sent to each MDS.
+:Type: String
+:Default: ``""`` (N/A)
+
+``client_mount_gid``
+
+:Description: Group-id of CephFS mount.
+:Type: Integer
+:Default: ``-1``
+
+``client_mount_timeout``
+
+:Description: Timeout for CephFS mount.
+:Type: Float
+:Default: ``300.0`` (seconds)
+
+``client_mount_uid``
+
+:Description: User-id of CephFS mount.
+:Type: Integer
+:Default: ``-1``
+
+``client_mountpoint``
+
+:Description: Directory to mount on the CephFS file system.
+:Type: String
+:Default: ``"/"``
+
+``client_oc``
+
+:Description: Enable object caching. **Setting currently ignored.**
+:Type: Boolean
+:Default: ``true``
+
+``client_oc_max_dirty``
+
+:Description: Maximum number of dirty bytes in object cache.
+:Type: Integer
+:Default: ``104857600`` (100MB)
+
+``client_oc_max_dirty_age``
+
+:Description: Maximum age of dirty data in the object cache before writeback.
+:Type: Float
+:Default: ``5.0`` (seconds)
+
+``client_oc_max_objects``
+
+:Description: Maximum number of objects in the object cache.
+:Type: Integer
+:Default: ``1000``
+
+``client_oc_size``
+
+:Description: Maximum size of cached data in the object cache.
+:Type: Integer
+:Default: ``209715200`` (200MB)
+
+``client_oc_target_dirty``
+
+:Description: Target size of dirty data. It is recommended to keep this low.
+:Type: Integer
+:Default: ``8388608`` (8MB)
+
+``client_permissions``
+
+:Description: Check client permissions on all I/O operations.
+:Type: Boolean
+:Default: ``true``
+
+``client_quota``
+
+:Description: Enable client quota checking.
+:Type: Boolean
+:Default: ``true``
+
+``client_quota_df``
+
+:Description: Report root directory quota for statfs operation.
+:Type: Boolean
+:Default: ``true``
+
+``client_readahead_max_bytes``
+
+:Description: Maximum bytes of readahead used for future read operations. Overridden by ``client_readahead_max_periods``.
+:Type: Integer
+:Default: ``0`` (unlimited)
+
+``client_readahead_max_periods``
+
+:Description: Number of file layout periods (object size * number of stripes) to readahead. Overrides ``client_readahead_max_bytes``.
+:Type: Integer
+:Default: ``4``
+
+``client_readahead_min``
+
+:Description: Minimum bytes to readahead.
+:Type: Integer
+:Default: ``131072`` (128KB)
+
+``client_snapdir``
+
+:Description: Name for the snapshot directory.
+:Type: String
+:Default: ``".snap"``
+
+``client_tick_interval``
+
+:Description: Interval between capability renewal and other upkeep.
+:Type: Float
+:Default: ``1.0`` (seconds)
+
+``client_trace``
+
+:Description: Trace file path for all file operations. The output is designed to be used by the Ceph `synthetic client <../man/8/ceph-syn>`.
+:Type: String
+:Default: ``""`` (disabled)
+
+``client_use_random_mds``
+
+:Description: Choose random MDS for each request.
+:Type: Boolean
+:Default: ``false``
+
+Developer Options
+#################
+
+``client_inject_fixed_oldest_tid``
+
+:Description:
+:Type: Boolean
+:Default: ``false``
+
+``client_inject_release_failure``
+
+:Description:
+:Type: Boolean
+:Default: ``false``
+
+``client_debug_inject_tick_delay``
+
+:Description: Add artificial delay between client ticks.
+:Type: Integer
+:Default: ``0``

doc/cephfs/index.rst

@@ -48,6 +48,7 @@ least one :term:`Ceph Metadata Server` running.
 	Add/Remove MDS <../../rados/deployment/ceph-deploy-mds>
 	MDS failover and standby configuration <standby>
 	MDS Configuration Settings <mds-config-ref>
+	Client Configuration Settings <client-config-ref>
 	Journaler Configuration <journaler>
 	Manpage ceph-mds <../../man/8/ceph-mds>