357 struct DBOptions {  struct
381   bool create_if_missing = false;
385   bool create_missing_column_families = false;
389   bool error_if_exists = false;
397   bool paranoid_checks = true;
410   std::shared_ptr<RateLimiter> rate_limiter = nullptr;
448   // Dynamically changeable through SetDBOptions() API.  argument
466   // Dynamically changeable through SetDBOptions() API.  argument
467   uint64_t max_total_wal_size = 0;
470   std::shared_ptr<Statistics> statistics = nullptr;
480   bool use_fsync = false;
506   std::vector<DbPath> db_paths;
530   // Dynamically changeable through SetDBOptions() API.  argument
537   // Dynamically changeable through SetDBOptions() API.  argument
543   // Dynamically changeable through SetDBOptions() API.  argument
561   // Dynamically changeable through SetDBOptions() API.  argument
562   int max_background_compactions = -1;
568   uint32_t max_subcompactions = 1;
590   int max_background_flushes = -1;
597   size_t max_log_file_size = 0;
604   size_t log_file_time_to_roll = 0;
608   size_t keep_log_file_num = 1000;
618   size_t recycle_log_file_num = 0;
624   uint64_t max_manifest_file_size = 1024 * 1024 * 1024;
627   int table_cache_numshardbits = 6;
644   uint64_t WAL_ttl_seconds = 0;
645   uint64_t WAL_size_limit_MB = 0;
651   size_t manifest_preallocation_size = 4 * 1024 * 1024;
654   bool allow_mmap_reads = false;
659   bool allow_mmap_writes = false;
693   // Dynamically changeable through SetDBOptions() API.  argument
694   unsigned int stats_dump_period_sec = 600;
698   unsigned int stats_persist_period_sec = 600;
710   bool persist_stats_to_disk = false;
715   size_t stats_history_buffer_size = 1024 * 1024;
720   bool advise_random_on_open = true;
732   size_t db_write_buffer_size = 0;
748   std::shared_ptr<WriteBufferManager> write_buffer_manager = nullptr;
753   enum AccessHint { NONE, NORMAL, SEQUENTIAL, WILLNEED };
754   AccessHint access_hint_on_compaction_start = NORMAL;
779   // Dynamically changeable through SetDBOptions() API.  argument
780   size_t compaction_readahead_size = 0;
817   // Create DBOptions with default values for all fields  argument
846   // Dynamically changeable through SetDBOptions() API.  argument
847   uint64_t wal_bytes_per_sync = 0;
868   bool strict_bytes_per_sync = false;
895   // Dynamically changeable through SetDBOptions() API.  argument
896   uint64_t delayed_write_rate = 0;
911   bool enable_pipelined_write = false;
937   bool unordered_write = false;
947   bool allow_concurrent_memtable_write = true;
955   bool enable_write_thread_adaptive_yield = true;
962   uint64_t max_write_batch_group_size_bytes = 1 << 20;
971   uint64_t write_thread_max_yield_usec = 100;
981   uint64_t write_thread_slow_yield_usec = 3;
989   bool skip_stats_update_on_db_open = false;
999   bool skip_checking_sst_file_sizes_on_db_open = false;
1003   WALRecoveryMode wal_recovery_mode = WALRecoveryMode::kPointInTimeRecovery;
1007   bool allow_2pc = false;
1012   std::shared_ptr<Cache> row_cache = nullptr;
1020   WalFilter* wal_filter = nullptr;
1050   // Dynamically changeable through SetDBOptions() API.  argument
1051   bool avoid_flush_during_shutdown = false;
1063   bool allow_ingest_behind = false;
1075   bool preserve_deletes = false;
1082   bool two_write_queues = false;
1087   bool manual_wal_flush = false;
1101   bool atomic_flush = false;
1109   bool avoid_unnecessary_blocking_io = false;
1120   bool write_dbid_to_manifest = false;
1150 struct Options : public DBOptions, public ColumnFamilyOptions {  argument