mirror of
https://github.com/ceph/ceph
synced 2025-03-07 16:58:39 +00:00
e0bbc70467
Client.cc marks session as stale instead of reconecting after received reset from MDS. On MDS side session is closed so MDS is ignoring cap renew. This adds option to reconnect stale client sessions instead of just marking sessions stale. Fixes: http://tracker.ceph.com/issues/18757 Signed-off-by: Henrik Korkuc <henrik@kirneh.eu>
215 lines
5.6 KiB
ReStructuredText
215 lines
5.6 KiB
ReStructuredText
========================
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Client Config Reference
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========================
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``client acl type``
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:Description: Set the ACL type. Currently, only possible value is ``"posix_acl"`` to enable POSIX ACL, or an empty string. This option only takes effect when the ``fuse_default_permissions`` is set to ``false``.
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:Type: String
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:Default: ``""`` (no ACL enforcement)
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``client cache mid``
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:Description: Set client cache midpoint. The midpoint splits the least recently used lists into a hot and warm list.
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:Type: Float
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:Default: ``0.75``
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``client_cache_size``
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:Description: Set the number of inodes that the client keeps in the metadata cache.
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:Type: Integer
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:Default: ``16384``
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``client_caps_release_delay``
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:Description: Set the delay between capability releases in seconds. The delay sets how many seconds a client waits to release capabilities that it no longer needs in case the capabilities are needed for another user space operation.
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:Type: Integer
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:Default: ``5`` (seconds)
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``client_debug_force_sync_read``
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:Description: If set to ``true``, clients read data directly from OSDs instead of using a local page cache.
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:Type: Boolean
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:Default: ``false``
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``client_dirsize_rbytes``
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:Description: If set to `true`, use the recursive size of a directory (that is, total of all descendants).
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:Type: Boolean
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:Default: ``true``
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``client_max_inline_size``
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:Description: Set the 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 MDS map.
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:Type: Integer
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:Default: ``4096``
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``client_metadata``
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:Description: Comma-delimited strings for client metadata sent to each MDS, in addition to the automatically generated version, host name, and other metadata.
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:Type: String
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:Default: ``""`` (no additional metadata)
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``client_mount_gid``
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:Description: Set the group ID of CephFS mount.
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:Type: Integer
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:Default: ``-1``
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``client_mount_timeout``
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:Description: Set the timeout for CephFS mount in seconds.
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:Type: Float
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:Default: ``300.0``
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``client_mount_uid``
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:Description: Set the user ID of CephFS mount.
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:Type: Integer
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:Default: ``-1``
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``client_mountpoint``
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:Description: Directory to mount on the CephFS file system. An alternative to the `-r` option of the `ceph-fuse` command.
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:Type: String
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:Default: ``"/"``
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``client_oc``
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:Description: Enable object caching.
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:Type: Boolean
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:Default: ``true``
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``client_oc_max_dirty``
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:Description: Set the maximum number of dirty bytes in the object cache.
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:Type: Integer
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:Default: ``104857600`` (100MB)
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``client_oc_max_dirty_age``
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:Description: Set the maximum age in seconds of dirty data in the object cache before writeback.
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:Type: Float
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:Default: ``5.0`` (seconds)
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``client_oc_max_objects``
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:Description: Set the maximum number of objects in the object cache.
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:Type: Integer
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:Default: ``1000``
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``client_oc_size``
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:Description: Set how many bytes of data will the client cache.
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:Type: Integer
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:Default: ``209715200`` (200 MB)
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``client_oc_target_dirty``
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:Description: Set the target size of dirty data. We recommend to keep this number low.
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:Type: Integer
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:Default: ``8388608`` (8MB)
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``client_permissions``
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:Description: Check client permissions on all I/O operations.
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:Type: Boolean
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:Default: ``true``
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``client_quota``
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:Description: Enable client quota checking if set to ``true``.
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:Type: Boolean
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:Default: ``true``
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``client_quota_df``
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:Description: Report root directory quota for the ``statfs`` operation.
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:Type: Boolean
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:Default: ``true``
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``client_readahead_max_bytes``
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:Description: Set the maximum number of bytes that the kernel reads ahead for future read operations. Overridden by the ``client_readahead_max_periods`` setting.
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:Type: Integer
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:Default: ``0`` (unlimited)
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``client_readahead_max_periods``
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:Description: Set the number of file layout periods (object size * number of stripes) that the kernel reads ahead. Overrides the ``client_readahead_max_bytes`` setting.
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:Type: Integer
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:Default: ``4``
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``client_readahead_min``
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:Description: Set the minimum number bytes that the kernel reads ahead.
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:Type: Integer
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:Default: ``131072`` (128KB)
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``client_reconnect_stale``
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:Description: Automatically reconnect stale session.
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:Type: Boolean
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:Default: ``false``
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``client_snapdir``
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:Description: Set the snapshot directory name.
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:Type: String
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:Default: ``".snap"``
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``client_tick_interval``
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:Description: Set the interval in seconds between capability renewal and other upkeep.
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:Type: Float
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:Default: ``1.0`` (seconds)
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``client_use_random_mds``
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:Description: Choose random MDS for each request.
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:Type: Boolean
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:Default: ``false``
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``fuse_default_permissions``
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:Description: When set to ``false``, ``ceph-fuse`` utility checks does its own permissions checking, instead of relying on the permissions enforcement in FUSE. Set to ``false`` together with the ``client acl type=posix_acl`` option to enable POSIX ACL.
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:Type: Boolean
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:Default: ``true``
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Developer Options
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#################
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.. important:: These options are internal. They are listed here only to complete the list of options.
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``client_debug_getattr_caps``
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:Description: Check if the reply from the MDS contains required capabilities.
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:Type: Boolean
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:Default: ``false``
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``client_debug_inject_tick_delay``
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:Description: Add artificial delay between client ticks.
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:Type: Integer
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:Default: ``0``
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``client_inject_fixed_oldest_tid``
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:Description:
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:Type: Boolean
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:Default: ``false``
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``client_inject_release_failure``
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:Description:
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:Type: Boolean
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:Default: ``false``
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``client_trace``
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:Description: The path to the trace file for all file operations. The output is designed to be used by the Ceph `synthetic client <../man/8/ceph-syn>`.
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:Type: String
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:Default: ``""`` (disabled)
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