mirror of
https://github.com/ceph/ceph
synced 2024-12-22 19:34:30 +00:00
ee44db4a51
Signed-off-by: John Wilkins <john.wilkins@dreamhost.com> Signed-off-by: Tommi Virtanen <tommi.virtanen@dreamhost.com>
158 lines
19 KiB
ReStructuredText
158 lines
19 KiB
ReStructuredText
======================================
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Metadata Server Configuration Settings
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======================================
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| Setting | Type | Default | Description |
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+===================================+=========================+============+================================================+
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| ``mds_max_file_size`` | 64-bit Integer Unsigned | 1ULL << 40 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_cache_size`` | 32-bit Integer | 100000 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_cache_mid`` | Float | .7 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_mem_max`` | 32-bit Integer | 1048576 | // KB |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_dir_commit_ratio`` | Float | .5 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_dir_max_commit_size`` | 32-bit Integer | 90 | // MB |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_decay_halflife`` | Float | 5 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_beacon_interval`` | Float | 4 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_beacon_grace`` | Float | 15 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_blacklist_interval`` | Float | 24.0*60.0 | // how long to blacklist failed nodes |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_session_timeout`` | Float | 60 | // cap bits and leases time out if client idle |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_session_autoclose`` | Float | 300 | // autoclose idle session |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_reconnect_timeout`` | Float | 45 | // secs to wait for clients during mds restart |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_tick_interval`` | Float | 5 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_dirstat_min_interval`` | Float | 1 | //try to avoid propagating more often than x |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_scatter_nudge_interval`` | Float | 5 | // how quickly dirstat changes propagate up |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_client_prealloc_inos`` | 32-bit Integer | 1000 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_early_reply`` | Boolean | true | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_use_tmap`` | Boolean | true | // use trivialmap for dir updates |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_default_dir_hash`` | 32-bit Integer | | CEPH_STR_HASH_RJENKINS |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_log`` | Boolean | true | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_log_skip_corrupt_events`` | Boolean | false | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_log_max_events`` | 32-bit Integer | -1 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_log_max_segments`` | 32-bit Integer | 30 | // segment size defined by FileLayout above |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_log_max_expiring`` | 32-bit Integer | 20 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_log_eopen_size`` | 32-bit Integer | 100 | // # open inodes per log entry |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_bal_sample_interval`` | Float | 3.0 | // every 5 seconds |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_bal_replicate_threshold`` | Float | 8000 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_bal_unreplicate_threshold`` | Float | 0 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_bal_frag`` | Boolean | false | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_bal_split_size`` | 32-bit Integer | 10000 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_bal_split_rd`` | Float | 25000 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_bal_split_wr`` | Float | 10000 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_bal_split_bits`` | 32-bit Integer | 3 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_bal_merge_size`` | 32-bit Integer | 50 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_bal_merge_rd`` | Float | 1000 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_bal_merge_wr`` | Float | 1000 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_bal_interval`` | 32-bit Integer | 10 | // seconds |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_bal_fragment_interval`` | 32-bit Integer | 5 | // seconds |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_bal_idle_threshold`` | Float | 0 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_bal_max`` | 32-bit Integer | -1 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_bal_max_until`` | 32-bit Integer | -1 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_bal_mode`` | 32-bit Integer | 0 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_bal_min_rebalance`` | Float | .1 | // must be x above avg before we export |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_bal_min_start`` | Float | .2 | // if we need less x. we don't do anything |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_bal_need_min`` | Float | .8 | // take within this range of what we need |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_bal_need_max`` | Float | 1.2 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_bal_midchunk`` | Float | .3 | // any sub bigger than this taken in full |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_bal_minchunk`` | Float | .001 | // never take anything smaller than this |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_bal_target_removal_min`` | 32-bit Integer | 5 | // min bal iters before old target is removed |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_bal_target_removal_max`` | 32-bit Integer | 10 | // max bal iters before old target is removed |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_replay_interval`` | Float | 1.0 | // time to wait before starting replay again |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_shutdown_check`` | 32-bit Integer | 0 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_thrash_exports`` | 32-bit Integer | 0 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_thrash_fragments`` | 32-bit Integer | 0 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_dump_cache_on_map`` | Boolean | false | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_dump_cache_after_rejoin`` | Boolean | false | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_verify_scatter`` | Boolean | false | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_debug_scatterstat`` | Boolean | false | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_debug_frag`` | Boolean | false | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_debug_auth_pins`` | Boolean | false | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_debug_subtrees`` | Boolean | false | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_kill_mdstable_at`` | 32-bit Integer | 0 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_kill_export_at`` | 32-bit Integer | 0 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_kill_import_at`` | 32-bit Integer | 0 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_kill_link_at`` | 32-bit Integer | 0 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_kill_rename_at`` | 32-bit Integer | 0 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_wipe_sessions`` | Boolean | 0 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_wipe_ino_prealloc`` | Boolean | 0 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_skip_ino`` | 32-bit Integer | 0 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``max_mds`` | 32-bit Integer | 1 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_standby_for_name`` | String | "" | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_standby_for_rank`` | 32-bit Integer | -1 | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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| ``mds_standby_replay`` | Boolean | false | |
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+-----------------------------------+-------------------------+------------+------------------------------------------------+
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// make it (mds_session_timeout - mds_beacon_grace | |