| # This is a RocksDB option file. |
| # |
| # A typical RocksDB options file has four sections, which are |
| # Version section, DBOptions section, at least one CFOptions |
| # section, and one TableOptions section for each column family. |
| # The RocksDB options file in general follows the basic INI |
| # file format with the following extensions / modifications: |
| # |
| # * Escaped characters |
| # We escaped the following characters: |
| # - \n -- line feed - new line |
| # - \r -- carriage return |
| # - \\ -- backslash \ |
| # - \: -- colon symbol : |
| # - \# -- hash tag # |
| # * Comments |
| # We support # style comments. Comments can appear at the ending |
| # part of a line. |
| # * Statements |
| # A statement is of the form option_name = value. |
| # Each statement contains a '=', where extra white-spaces |
| # are supported. However, we don't support multi-lined statement. |
| # Furthermore, each line can only contain at most one statement. |
| # * Sections |
| # Sections are of the form [SecitonTitle "SectionArgument"], |
| # where section argument is optional. |
| # * List |
| # We use colon-separated string to represent a list. |
| # For instance, n1:n2:n3:n4 is a list containing four values. |
| # |
| # Below is an example of a RocksDB options file: |
| [Version] |
| rocksdb_version=4.3.0 |
| options_file_version=1.1 |
| |
| [DBOptions] |
| stats_dump_period_sec=600 |
| max_manifest_file_size=18446744073709551615 |
| bytes_per_sync=8388608 |
| delayed_write_rate=2097152 |
| WAL_ttl_seconds=0 |
| WAL_size_limit_MB=0 |
| max_subcompactions=1 |
| wal_dir= |
| wal_bytes_per_sync=0 |
| db_write_buffer_size=0 |
| keep_log_file_num=1000 |
| table_cache_numshardbits=4 |
| max_file_opening_threads=1 |
| writable_file_max_buffer_size=1048576 |
| random_access_max_buffer_size=1048576 |
| use_fsync=false |
| max_total_wal_size=0 |
| max_open_files=-1 |
| skip_stats_update_on_db_open=false |
| max_background_compactions=16 |
| manifest_preallocation_size=4194304 |
| max_background_flushes=7 |
| is_fd_close_on_exec=true |
| max_log_file_size=0 |
| advise_random_on_open=true |
| create_missing_column_families=false |
| paranoid_checks=true |
| delete_obsolete_files_period_micros=21600000000 |
| log_file_time_to_roll=0 |
| compaction_readahead_size=0 |
| create_if_missing=false |
| use_adaptive_mutex=false |
| enable_thread_tracking=false |
| allow_fallocate=true |
| error_if_exists=false |
| recycle_log_file_num=0 |
| skip_log_error_on_recovery=false |
| db_log_dir= |
| new_table_reader_for_compaction_inputs=true |
| allow_mmap_reads=false |
| allow_mmap_writes=false |
| use_direct_reads=false |
| use_direct_writes=false |
| |
| |
| [CFOptions "default"] |
| compaction_style=kCompactionStyleLevel |
| compaction_filter=nullptr |
| num_levels=6 |
| table_factory=BlockBasedTable |
| comparator=leveldb.BytewiseComparator |
| max_sequential_skip_in_iterations=8 |
| soft_rate_limit=0.000000 |
| max_bytes_for_level_base=1073741824 |
| memtable_prefix_bloom_probes=6 |
| memtable_prefix_bloom_bits=0 |
| memtable_prefix_bloom_huge_page_tlb_size=0 |
| max_successive_merges=0 |
| arena_block_size=16777216 |
| min_write_buffer_number_to_merge=1 |
| target_file_size_multiplier=1 |
| source_compaction_factor=1 |
| max_bytes_for_level_multiplier=8 |
| max_bytes_for_level_multiplier_additional=2:3:5 |
| compaction_filter_factory=nullptr |
| max_write_buffer_number=8 |
| level0_stop_writes_trigger=20 |
| compression=kSnappyCompression |
| level0_file_num_compaction_trigger=4 |
| purge_redundant_kvs_while_flush=true |
| max_write_buffer_number_to_maintain=0 |
| memtable_factory=SkipListFactory |
| max_grandparent_overlap_factor=8 |
| expanded_compaction_factor=25 |
| hard_pending_compaction_bytes_limit=137438953472 |
| inplace_update_num_locks=10000 |
| level_compaction_dynamic_level_bytes=true |
| level0_slowdown_writes_trigger=12 |
| filter_deletes=false |
| verify_checksums_in_compaction=true |
| min_partial_merge_operands=2 |
| paranoid_file_checks=false |
| target_file_size_base=134217728 |
| optimize_filters_for_hits=false |
| merge_operator=PutOperator |
| compression_per_level=kNoCompression:kNoCompression:kNoCompression:kSnappyCompression:kSnappyCompression:kSnappyCompression |
| compaction_measure_io_stats=false |
| prefix_extractor=nullptr |
| bloom_locality=0 |
| write_buffer_size=134217728 |
| disable_auto_compactions=false |
| inplace_update_support=false |
| |
| [TableOptions/BlockBasedTable "default"] |
| format_version=2 |
| whole_key_filtering=true |
| no_block_cache=false |
| checksum=kCRC32c |
| filter_policy=rocksdb.BuiltinBloomFilter |
| block_size_deviation=10 |
| block_size=8192 |
| block_restart_interval=16 |
| cache_index_and_filter_blocks=false |
| pin_l0_filter_and_index_blocks_in_cache=false |
| index_type=kBinarySearch |
| hash_index_allow_collision=true |
| flush_block_policy_factory=FlushBlockBySizePolicyFactory |
