2025/08/09-14:58:38.847989 235557 RocksDB version: 9.9.3
2025/08/09-14:58:38.848021 235557 Compile date 2024-12-05 01:25:31
2025/08/09-14:58:38.848024 235557 DB SUMMARY
2025/08/09-14:58:38.848027 235557 Host name (Env):  30dfd2e38f0b
2025/08/09-14:58:38.848029 235557 DB Session ID:  VBBHIY49NOC7L6W4M1AK
2025/08/09-14:58:38.848055 235557 SST files in ./storage/collections/exercises/0/segments/a3b3cf91-3dff-4a37-b921-1c54f1a3ee13/payload_index dir, Total Num: 0, files: 
2025/08/09-14:58:38.848058 235557 Write Ahead Log file in ./storage/collections/exercises/0/segments/a3b3cf91-3dff-4a37-b921-1c54f1a3ee13/payload_index: 
2025/08/09-14:58:38.848060 235557                         Options.error_if_exists: 0
2025/08/09-14:58:38.848062 235557                       Options.create_if_missing: 1
2025/08/09-14:58:38.848063 235557                         Options.paranoid_checks: 1
2025/08/09-14:58:38.848065 235557             Options.flush_verify_memtable_count: 1
2025/08/09-14:58:38.848066 235557          Options.compaction_verify_record_count: 1
2025/08/09-14:58:38.848067 235557                               Options.track_and_verify_wals_in_manifest: 0
2025/08/09-14:58:38.848069 235557        Options.verify_sst_unique_id_in_manifest: 1
2025/08/09-14:58:38.848071 235557                                     Options.env: 0x7e0c22230380
2025/08/09-14:58:38.848072 235557                                      Options.fs: PosixFileSystem
2025/08/09-14:58:38.848074 235557                                Options.info_log: 0x7e0c25261e00
2025/08/09-14:58:38.848075 235557                Options.max_file_opening_threads: 16
2025/08/09-14:58:38.848077 235557                              Options.statistics: (nil)
2025/08/09-14:58:38.848078 235557                               Options.use_fsync: 0
2025/08/09-14:58:38.848080 235557                       Options.max_log_file_size: 1048576
2025/08/09-14:58:38.848081 235557                  Options.max_manifest_file_size: 1073741824
2025/08/09-14:58:38.848084 235557                   Options.log_file_time_to_roll: 0
2025/08/09-14:58:38.848086 235557                       Options.keep_log_file_num: 1
2025/08/09-14:58:38.848087 235557                    Options.recycle_log_file_num: 0
2025/08/09-14:58:38.848089 235557                         Options.allow_fallocate: 1
2025/08/09-14:58:38.848091 235557                        Options.allow_mmap_reads: 0
2025/08/09-14:58:38.848092 235557                       Options.allow_mmap_writes: 0
2025/08/09-14:58:38.848094 235557                        Options.use_direct_reads: 0
2025/08/09-14:58:38.848095 235557                        Options.use_direct_io_for_flush_and_compaction: 0
2025/08/09-14:58:38.848097 235557          Options.create_missing_column_families: 1
2025/08/09-14:58:38.848098 235557                              Options.db_log_dir: 
2025/08/09-14:58:38.848099 235557                                 Options.wal_dir: 
2025/08/09-14:58:38.848101 235557                Options.table_cache_numshardbits: 6
2025/08/09-14:58:38.848103 235557                         Options.WAL_ttl_seconds: 0
2025/08/09-14:58:38.848104 235557                       Options.WAL_size_limit_MB: 0
2025/08/09-14:58:38.848106 235557                        Options.max_write_batch_group_size_bytes: 1048576
2025/08/09-14:58:38.848108 235557             Options.manifest_preallocation_size: 4194304
2025/08/09-14:58:38.848109 235557                     Options.is_fd_close_on_exec: 1
2025/08/09-14:58:38.848112 235557                   Options.advise_random_on_open: 1
2025/08/09-14:58:38.848114 235557                    Options.db_write_buffer_size: 0
2025/08/09-14:58:38.848115 235557                    Options.write_buffer_manager: 0x7e0c25201320
2025/08/09-14:58:38.848117 235557           Options.random_access_max_buffer_size: 1048576
2025/08/09-14:58:38.848118 235557                      Options.use_adaptive_mutex: 0
2025/08/09-14:58:38.848120 235557                            Options.rate_limiter: (nil)
2025/08/09-14:58:38.848122 235557     Options.sst_file_manager.rate_bytes_per_sec: 0
2025/08/09-14:58:38.848124 235557                       Options.wal_recovery_mode: 0
2025/08/09-14:58:38.848128 235557                  Options.enable_thread_tracking: 0
2025/08/09-14:58:38.848130 235557                  Options.enable_pipelined_write: 0
2025/08/09-14:58:38.848131 235557                  Options.unordered_write: 0
2025/08/09-14:58:38.848134 235557         Options.allow_concurrent_memtable_write: 1
2025/08/09-14:58:38.848136 235557      Options.enable_write_thread_adaptive_yield: 1
2025/08/09-14:58:38.848137 235557             Options.write_thread_max_yield_usec: 100
2025/08/09-14:58:38.848141 235557            Options.write_thread_slow_yield_usec: 3
2025/08/09-14:58:38.848142 235557                               Options.row_cache: None
2025/08/09-14:58:38.848144 235557                              Options.wal_filter: None
2025/08/09-14:58:38.848146 235557             Options.avoid_flush_during_recovery: 0
2025/08/09-14:58:38.848147 235557             Options.allow_ingest_behind: 0
2025/08/09-14:58:38.848148 235557             Options.two_write_queues: 0
2025/08/09-14:58:38.848150 235557             Options.manual_wal_flush: 0
2025/08/09-14:58:38.848151 235557             Options.wal_compression: 0
2025/08/09-14:58:38.848154 235557             Options.background_close_inactive_wals: 0
2025/08/09-14:58:38.848156 235557             Options.atomic_flush: 0
2025/08/09-14:58:38.848157 235557             Options.avoid_unnecessary_blocking_io: 0
2025/08/09-14:58:38.848159 235557             Options.prefix_seek_opt_in_only: 0
2025/08/09-14:58:38.848160 235557                 Options.persist_stats_to_disk: 0
2025/08/09-14:58:38.848162 235557                 Options.write_dbid_to_manifest: 1
2025/08/09-14:58:38.848165 235557                 Options.write_identity_file: 1
2025/08/09-14:58:38.848166 235557                 Options.log_readahead_size: 0
2025/08/09-14:58:38.848167 235557                 Options.file_checksum_gen_factory: Unknown
2025/08/09-14:58:38.848170 235557                 Options.best_efforts_recovery: 0
2025/08/09-14:58:38.848171 235557                Options.max_bgerror_resume_count: 2147483647
2025/08/09-14:58:38.848173 235557            Options.bgerror_resume_retry_interval: 1000000
2025/08/09-14:58:38.848174 235557             Options.allow_data_in_errors: 0
2025/08/09-14:58:38.848176 235557             Options.db_host_id: __hostname__
2025/08/09-14:58:38.848177 235557             Options.enforce_single_del_contracts: true
2025/08/09-14:58:38.848180 235557             Options.metadata_write_temperature: kUnknown
2025/08/09-14:58:38.848181 235557             Options.wal_write_temperature: kUnknown
2025/08/09-14:58:38.848183 235557             Options.max_background_jobs: 2
2025/08/09-14:58:38.848186 235557             Options.max_background_compactions: -1
2025/08/09-14:58:38.848187 235557             Options.max_subcompactions: 1
2025/08/09-14:58:38.848188 235557             Options.avoid_flush_during_shutdown: 0
2025/08/09-14:58:38.848190 235557           Options.writable_file_max_buffer_size: 1048576
2025/08/09-14:58:38.848192 235557             Options.delayed_write_rate : 16777216
2025/08/09-14:58:38.848193 235557             Options.max_total_wal_size: 0
2025/08/09-14:58:38.848195 235557             Options.delete_obsolete_files_period_micros: 180000000
2025/08/09-14:58:38.848196 235557                   Options.stats_dump_period_sec: 600
2025/08/09-14:58:38.848198 235557                 Options.stats_persist_period_sec: 600
2025/08/09-14:58:38.848199 235557                 Options.stats_history_buffer_size: 1048576
2025/08/09-14:58:38.848201 235557                          Options.max_open_files: 256
2025/08/09-14:58:38.848203 235557                          Options.bytes_per_sync: 0
2025/08/09-14:58:38.848204 235557                      Options.wal_bytes_per_sync: 0
2025/08/09-14:58:38.848206 235557                   Options.strict_bytes_per_sync: 0
2025/08/09-14:58:38.848207 235557       Options.compaction_readahead_size: 2097152
2025/08/09-14:58:38.848209 235557                  Options.max_background_flushes: -1
2025/08/09-14:58:38.848210 235557 Options.daily_offpeak_time_utc: 
2025/08/09-14:58:38.848214 235557 Compression algorithms supported:
2025/08/09-14:58:38.848216 235557 	kZSTD supported: 0
2025/08/09-14:58:38.848218 235557 	kXpressCompression supported: 0
2025/08/09-14:58:38.848220 235557 	kBZip2Compression supported: 0
2025/08/09-14:58:38.848221 235557 	kZSTDNotFinalCompression supported: 0
2025/08/09-14:58:38.848223 235557 	kLZ4Compression supported: 1
2025/08/09-14:58:38.848225 235557 	kZlibCompression supported: 0
2025/08/09-14:58:38.848226 235557 	kLZ4HCCompression supported: 1
2025/08/09-14:58:38.848228 235557 	kSnappyCompression supported: 1
2025/08/09-14:58:38.848230 235557 Fast CRC32 supported: Not supported on x86
2025/08/09-14:58:38.848232 235557 DMutex implementation: pthread_mutex_t
2025/08/09-14:58:38.848233 235557 Jemalloc supported: 0
2025/08/09-14:58:38.855276 235557               Options.comparator: leveldb.BytewiseComparator
2025/08/09-14:58:38.855293 235557           Options.merge_operator: None
2025/08/09-14:58:38.855295 235557        Options.compaction_filter: None
2025/08/09-14:58:38.855298 235557        Options.compaction_filter_factory: None
2025/08/09-14:58:38.855300 235557  Options.sst_partitioner_factory: None
2025/08/09-14:58:38.855302 235557         Options.memtable_factory: SkipListFactory
2025/08/09-14:58:38.855304 235557            Options.table_factory: BlockBasedTable
2025/08/09-14:58:38.855362 235557            table_factory options:   flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x7e0c25200140)
  cache_index_and_filter_blocks: 0
  cache_index_and_filter_blocks_with_high_priority: 1
  pin_l0_filter_and_index_blocks_in_cache: 0
  pin_top_level_index_and_filter: 1
  index_type: 0
  data_block_index_type: 0
  index_shortening: 1
  data_block_hash_table_util_ratio: 0.750000
  checksum: 4
  no_block_cache: 0
  block_cache: 0x7e0c25215490
  block_cache_name: LRUCache
  block_cache_options:
    capacity : 33554432
    num_shard_bits : 6
    strict_capacity_limit : 0
    memory_allocator : None
    high_pri_pool_ratio: 0.500
    low_pri_pool_ratio: 0.000
  persistent_cache: (nil)
  block_size: 4096
  block_size_deviation: 10
  block_restart_interval: 16
  index_block_restart_interval: 1
  metadata_block_size: 4096
  partition_filters: 0
  use_delta_encoding: 1
  filter_policy: nullptr
  whole_key_filtering: 1
  verify_compression: 0
  read_amp_bytes_per_bit: 0
  format_version: 6
  enable_index_compression: 1
  block_align: 0
  max_auto_readahead_size: 262144
  prepopulate_block_cache: 0
  initial_auto_readahead_size: 8192
  num_file_reads_for_auto_readahead: 2
2025/08/09-14:58:38.855372 235557        Options.write_buffer_size: 10485760
2025/08/09-14:58:38.855374 235557  Options.max_write_buffer_number: 2
2025/08/09-14:58:38.855378 235557          Options.compression: LZ4
2025/08/09-14:58:38.855381 235557                  Options.bottommost_compression: Disabled
2025/08/09-14:58:38.855383 235557       Options.prefix_extractor: nullptr
2025/08/09-14:58:38.855385 235557   Options.memtable_insert_with_hint_prefix_extractor: nullptr
2025/08/09-14:58:38.855387 235557             Options.num_levels: 7
2025/08/09-14:58:38.855390 235557        Options.min_write_buffer_number_to_merge: 1
2025/08/09-14:58:38.855392 235557     Options.max_write_buffer_number_to_maintain: 0
2025/08/09-14:58:38.855394 235557     Options.max_write_buffer_size_to_maintain: 0
2025/08/09-14:58:38.855397 235557            Options.bottommost_compression_opts.window_bits: -14
2025/08/09-14:58:38.855399 235557                  Options.bottommost_compression_opts.level: 32767
2025/08/09-14:58:38.855401 235557               Options.bottommost_compression_opts.strategy: 0
2025/08/09-14:58:38.855403 235557         Options.bottommost_compression_opts.max_dict_bytes: 0
2025/08/09-14:58:38.855406 235557         Options.bottommost_compression_opts.zstd_max_train_bytes: 0
2025/08/09-14:58:38.855408 235557         Options.bottommost_compression_opts.parallel_threads: 1
2025/08/09-14:58:38.855410 235557                  Options.bottommost_compression_opts.enabled: false
2025/08/09-14:58:38.855419 235557         Options.bottommost_compression_opts.max_dict_buffer_bytes: 0
2025/08/09-14:58:38.855421 235557         Options.bottommost_compression_opts.use_zstd_dict_trainer: true
2025/08/09-14:58:38.855424 235557            Options.compression_opts.window_bits: -14
2025/08/09-14:58:38.855426 235557                  Options.compression_opts.level: 32767
2025/08/09-14:58:38.855431 235557               Options.compression_opts.strategy: 0
2025/08/09-14:58:38.855434 235557         Options.compression_opts.max_dict_bytes: 0
2025/08/09-14:58:38.855436 235557         Options.compression_opts.zstd_max_train_bytes: 0
2025/08/09-14:58:38.855438 235557         Options.compression_opts.use_zstd_dict_trainer: true
2025/08/09-14:58:38.855440 235557         Options.compression_opts.parallel_threads: 1
2025/08/09-14:58:38.855442 235557                  Options.compression_opts.enabled: false
2025/08/09-14:58:38.855444 235557         Options.compression_opts.max_dict_buffer_bytes: 0
2025/08/09-14:58:38.855446 235557      Options.level0_file_num_compaction_trigger: 4
2025/08/09-14:58:38.855448 235557          Options.level0_slowdown_writes_trigger: 20
2025/08/09-14:58:38.855450 235557              Options.level0_stop_writes_trigger: 36
2025/08/09-14:58:38.855452 235557                   Options.target_file_size_base: 67108864
2025/08/09-14:58:38.855455 235557             Options.target_file_size_multiplier: 1
2025/08/09-14:58:38.855457 235557                Options.max_bytes_for_level_base: 268435456
2025/08/09-14:58:38.855470 235557 Options.level_compaction_dynamic_level_bytes: 1
2025/08/09-14:58:38.855475 235557          Options.max_bytes_for_level_multiplier: 10.000000
2025/08/09-14:58:38.855478 235557 Options.max_bytes_for_level_multiplier_addtl[0]: 1
2025/08/09-14:58:38.855480 235557 Options.max_bytes_for_level_multiplier_addtl[1]: 1
2025/08/09-14:58:38.855483 235557 Options.max_bytes_for_level_multiplier_addtl[2]: 1
2025/08/09-14:58:38.855485 235557 Options.max_bytes_for_level_multiplier_addtl[3]: 1
2025/08/09-14:58:38.855487 235557 Options.max_bytes_for_level_multiplier_addtl[4]: 1
2025/08/09-14:58:38.855492 235557 Options.max_bytes_for_level_multiplier_addtl[5]: 1
2025/08/09-14:58:38.855495 235557 Options.max_bytes_for_level_multiplier_addtl[6]: 1
2025/08/09-14:58:38.855499 235557       Options.max_sequential_skip_in_iterations: 8
2025/08/09-14:58:38.855502 235557                    Options.max_compaction_bytes: 1677721600
2025/08/09-14:58:38.855504 235557                        Options.arena_block_size: 1048576
2025/08/09-14:58:38.855507 235557   Options.soft_pending_compaction_bytes_limit: 68719476736
2025/08/09-14:58:38.855509 235557   Options.hard_pending_compaction_bytes_limit: 274877906944
2025/08/09-14:58:38.855511 235557                Options.disable_auto_compactions: 0
2025/08/09-14:58:38.855514 235557                        Options.compaction_style: kCompactionStyleLevel
2025/08/09-14:58:38.855517 235557                          Options.compaction_pri: kMinOverlappingRatio
2025/08/09-14:58:38.855519 235557 Options.compaction_options_universal.size_ratio: 1
2025/08/09-14:58:38.855521 235557 Options.compaction_options_universal.min_merge_width: 2
2025/08/09-14:58:38.855523 235557 Options.compaction_options_universal.max_merge_width: 4294967295
2025/08/09-14:58:38.855525 235557 Options.compaction_options_universal.max_size_amplification_percent: 200
2025/08/09-14:58:38.855528 235557 Options.compaction_options_universal.compression_size_percent: -1
2025/08/09-14:58:38.855530 235557 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
2025/08/09-14:58:38.855532 235557 Options.compaction_options_universal.max_read_amp: -1
2025/08/09-14:58:38.855534 235557 Options.compaction_options_fifo.max_table_files_size: 1073741824
2025/08/09-14:58:38.855537 235557 Options.compaction_options_fifo.allow_compaction: 0
2025/08/09-14:58:38.855544 235557                   Options.table_properties_collectors: 
2025/08/09-14:58:38.855547 235557                   Options.inplace_update_support: 0
2025/08/09-14:58:38.855552 235557                 Options.inplace_update_num_locks: 10000
2025/08/09-14:58:38.855555 235557               Options.memtable_prefix_bloom_size_ratio: 0.000000
2025/08/09-14:58:38.855558 235557               Options.memtable_whole_key_filtering: 0
2025/08/09-14:58:38.855560 235557   Options.memtable_huge_page_size: 0
2025/08/09-14:58:38.855562 235557                           Options.bloom_locality: 0
2025/08/09-14:58:38.855564 235557                    Options.max_successive_merges: 0
2025/08/09-14:58:38.855567 235557             Options.strict_max_successive_merges: 0
2025/08/09-14:58:38.855569 235557                Options.optimize_filters_for_hits: 0
2025/08/09-14:58:38.855571 235557                Options.paranoid_file_checks: 0
2025/08/09-14:58:38.855573 235557                Options.force_consistency_checks: 1
2025/08/09-14:58:38.855575 235557                Options.report_bg_io_stats: 0
2025/08/09-14:58:38.855577 235557                               Options.ttl: 2592000
2025/08/09-14:58:38.855579 235557          Options.periodic_compaction_seconds: 0
2025/08/09-14:58:38.855581 235557                        Options.default_temperature: kUnknown
2025/08/09-14:58:38.855583 235557  Options.preclude_last_level_data_seconds: 0
2025/08/09-14:58:38.855586 235557    Options.preserve_internal_time_seconds: 0
2025/08/09-14:58:38.855588 235557                       Options.enable_blob_files: false
2025/08/09-14:58:38.855590 235557                           Options.min_blob_size: 0
2025/08/09-14:58:38.855592 235557                          Options.blob_file_size: 268435456
2025/08/09-14:58:38.855594 235557                   Options.blob_compression_type: NoCompression
2025/08/09-14:58:38.855596 235557          Options.enable_blob_garbage_collection: false
2025/08/09-14:58:38.855599 235557      Options.blob_garbage_collection_age_cutoff: 0.250000
2025/08/09-14:58:38.855602 235557 Options.blob_garbage_collection_force_threshold: 1.000000
2025/08/09-14:58:38.855605 235557          Options.blob_compaction_readahead_size: 0
2025/08/09-14:58:38.855607 235557                Options.blob_file_starting_level: 0
2025/08/09-14:58:38.855609 235557         Options.experimental_mempurge_threshold: 0.000000
2025/08/09-14:58:38.855612 235557            Options.memtable_max_range_deletions: 0
2025/08/09-14:58:38.870491 235557 DB pointer 0x7e0c25270400
