projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | # This is a RocksDB option file. |
| 2 | # | |
| 3 | # A typical RocksDB options file has four sections, which are | |
| 4 | # Version section, DBOptions section, at least one CFOptions | |
| 5 | # section, and one TableOptions section for each column family. | |
| 6 | # The RocksDB options file in general follows the basic INI | |
| 7 | # file format with the following extensions / modifications: | |
| 8 | # | |
| 9 | # * Escaped characters | |
| 10 | # We escaped the following characters: | |
| 11 | # - \n -- line feed - new line | |
| 12 | # - \r -- carriage return | |
| 13 | # - \\ -- backslash \ | |
| 14 | # - \: -- colon symbol : | |
| 15 | # - \# -- hash tag # | |
| 16 | # * Comments | |
| 17 | # We support # style comments. Comments can appear at the ending | |
| 18 | # part of a line. | |
| 19 | # * Statements | |
| 20 | # A statement is of the form option_name = value. | |
| 21 | # Each statement contains a '=', where extra white-spaces | |
| 22 | # are supported. However, we don't support multi-lined statement. | |
| 23 | # Furthermore, each line can only contain at most one statement. | |
| 24 | # * Sections | |
| 25 | # Sections are of the form [SecitonTitle "SectionArgument"], | |
| 26 | # where section argument is optional. | |
| 27 | # * List | |
| 28 | # We use colon-separated string to represent a list. | |
| 29 | # For instance, n1:n2:n3:n4 is a list containing four values. | |
| 30 | # | |
| 31 | # Below is an example of a RocksDB options file: | |
| 32 | [Version] | |
| 33 | rocksdb_version=4.3.0 | |
| 34 | options_file_version=1.1 | |
| 35 | ||
| 36 | [DBOptions] | |
| 37 | stats_dump_period_sec=600 | |
| 38 | max_manifest_file_size=18446744073709551615 | |
| 39 | bytes_per_sync=8388608 | |
| 40 | delayed_write_rate=2097152 | |
| 41 | WAL_ttl_seconds=0 | |
| 42 | WAL_size_limit_MB=0 | |
| 43 | max_subcompactions=1 | |
| 44 | wal_dir= | |
| 45 | wal_bytes_per_sync=0 | |
| 46 | db_write_buffer_size=0 | |
| 47 | keep_log_file_num=1000 | |
| 48 | table_cache_numshardbits=4 | |
| 49 | max_file_opening_threads=1 | |
| 50 | writable_file_max_buffer_size=1048576 | |
| 51 | random_access_max_buffer_size=1048576 | |
| 52 | use_fsync=false | |
| 53 | max_total_wal_size=0 | |
| 54 | max_open_files=-1 | |
| 55 | skip_stats_update_on_db_open=false | |
| 56 | max_background_compactions=16 | |
| 57 | manifest_preallocation_size=4194304 | |
| 58 | max_background_flushes=7 | |
| 59 | is_fd_close_on_exec=true | |
| 60 | max_log_file_size=0 | |
| 61 | advise_random_on_open=true | |
| 62 | create_missing_column_families=false | |
| 63 | paranoid_checks=true | |
| 64 | delete_obsolete_files_period_micros=21600000000 | |
| 65 | log_file_time_to_roll=0 | |
| 66 | compaction_readahead_size=0 | |
| 67 | create_if_missing=false | |
| 68 | use_adaptive_mutex=false | |
| 69 | enable_thread_tracking=false | |
| 70 | allow_fallocate=true | |
| 71 | error_if_exists=false | |
| 72 | recycle_log_file_num=0 | |
| 73 | skip_log_error_on_recovery=false | |
| 74 | db_log_dir= | |
| 75 | new_table_reader_for_compaction_inputs=true | |
| 76 | allow_mmap_reads=false | |
| 77 | allow_mmap_writes=false | |
| 78 | use_direct_reads=false | |
| 79 | use_direct_writes=false | |
| 80 | ||
| 81 | ||
| 82 | [CFOptions "default"] | |
| 83 | compaction_style=kCompactionStyleLevel | |
| 84 | compaction_filter=nullptr | |
| 85 | num_levels=6 | |
| 86 | table_factory=BlockBasedTable | |
| 87 | comparator=leveldb.BytewiseComparator | |
| 88 | max_sequential_skip_in_iterations=8 | |
| 89 | soft_rate_limit=0.000000 | |
| 90 | max_bytes_for_level_base=1073741824 | |
| 91 | memtable_prefix_bloom_probes=6 | |
| 92 | memtable_prefix_bloom_bits=0 | |
| 93 | memtable_prefix_bloom_huge_page_tlb_size=0 | |
| 94 | max_successive_merges=0 | |
| 95 | arena_block_size=16777216 | |
| 96 | min_write_buffer_number_to_merge=1 | |
| 97 | target_file_size_multiplier=1 | |
| 98 | source_compaction_factor=1 | |
| 99 | max_bytes_for_level_multiplier=8 | |
| 100 | max_bytes_for_level_multiplier_additional=2:3:5 | |
| 101 | compaction_filter_factory=nullptr | |
| 102 | max_write_buffer_number=8 | |
| 103 | level0_stop_writes_trigger=20 | |
| 104 | compression=kSnappyCompression | |
| 105 | level0_file_num_compaction_trigger=4 | |
| 106 | purge_redundant_kvs_while_flush=true | |
| 107 | max_write_buffer_number_to_maintain=0 | |
| 108 | memtable_factory=SkipListFactory | |
| 109 | max_grandparent_overlap_factor=8 | |
| 110 | expanded_compaction_factor=25 | |
| 111 | hard_pending_compaction_bytes_limit=137438953472 | |
| 112 | inplace_update_num_locks=10000 | |
| 113 | level_compaction_dynamic_level_bytes=true | |
| 114 | level0_slowdown_writes_trigger=12 | |
| 115 | filter_deletes=false | |
| 116 | verify_checksums_in_compaction=true | |
| 117 | min_partial_merge_operands=2 | |
| 118 | paranoid_file_checks=false | |
| 119 | target_file_size_base=134217728 | |
| 120 | optimize_filters_for_hits=false | |
| 121 | merge_operator=PutOperator | |
| 122 | compression_per_level=kNoCompression:kNoCompression:kNoCompression:kSnappyCompression:kSnappyCompression:kSnappyCompression | |
| 123 | compaction_measure_io_stats=false | |
| 124 | prefix_extractor=nullptr | |
| 125 | bloom_locality=0 | |
| 126 | write_buffer_size=134217728 | |
| 127 | disable_auto_compactions=false | |
| 128 | inplace_update_support=false | |
| 129 | ||
| 130 | [TableOptions/BlockBasedTable "default"] | |
| 131 | format_version=2 | |
| 132 | whole_key_filtering=true | |
| 133 | no_block_cache=false | |
| 134 | checksum=kCRC32c | |
| 135 | filter_policy=rocksdb.BuiltinBloomFilter | |
| 136 | block_size_deviation=10 | |
| 137 | block_size=8192 | |
| 138 | block_restart_interval=16 | |
| 139 | cache_index_and_filter_blocks=false | |
| 140 | pin_l0_filter_and_index_blocks_in_cache=false | |
| 11fdf7f2 | 141 | pin_top_level_index_and_filter=false |
| 7c673cae FG |
142 | index_type=kBinarySearch |
| 143 | hash_index_allow_collision=true | |
| 144 | flush_block_policy_factory=FlushBlockBySizePolicyFactory |