2025/08/09-14:58:38.847989 235558 RocksDB version: 9.9.3
2025/08/09-14:58:38.848019 235558 Compile date 2024-12-05 01:25:31
2025/08/09-14:58:38.848021 235558 DB SUMMARY
2025/08/09-14:58:38.848024 235558 Host name (Env):  30dfd2e38f0b
2025/08/09-14:58:38.848026 235558 DB Session ID:  VBBHIY49NOC7L6W4M1AL
2025/08/09-14:58:38.848052 235558 SST files in ./storage/collections/exercises/0/segments/31dee50f-1427-4647-95fd-12cbeb8ee8cb/payload_index dir, Total Num: 0, files: 
2025/08/09-14:58:38.848054 235558 Write Ahead Log file in ./storage/collections/exercises/0/segments/31dee50f-1427-4647-95fd-12cbeb8ee8cb/payload_index: 
2025/08/09-14:58:38.848057 235558                         Options.error_if_exists: 0
2025/08/09-14:58:38.848059 235558                       Options.create_if_missing: 1
2025/08/09-14:58:38.848060 235558                         Options.paranoid_checks: 1
2025/08/09-14:58:38.848062 235558             Options.flush_verify_memtable_count: 1
2025/08/09-14:58:38.848064 235558          Options.compaction_verify_record_count: 1
2025/08/09-14:58:38.848065 235558                               Options.track_and_verify_wals_in_manifest: 0
2025/08/09-14:58:38.848067 235558        Options.verify_sst_unique_id_in_manifest: 1
2025/08/09-14:58:38.848068 235558                                     Options.env: 0x7e0c22230380
2025/08/09-14:58:38.848071 235558                                      Options.fs: PosixFileSystem
2025/08/09-14:58:38.848072 235558                                Options.info_log: 0x7e0c1d23c000
2025/08/09-14:58:38.848074 235558                Options.max_file_opening_threads: 16
2025/08/09-14:58:38.848076 235558                              Options.statistics: (nil)
2025/08/09-14:58:38.848078 235558                               Options.use_fsync: 0
2025/08/09-14:58:38.848079 235558                       Options.max_log_file_size: 1048576
2025/08/09-14:58:38.848081 235558                  Options.max_manifest_file_size: 1073741824
2025/08/09-14:58:38.848085 235558                   Options.log_file_time_to_roll: 0
2025/08/09-14:58:38.848086 235558                       Options.keep_log_file_num: 1
2025/08/09-14:58:38.848088 235558                    Options.recycle_log_file_num: 0
2025/08/09-14:58:38.848089 235558                         Options.allow_fallocate: 1
2025/08/09-14:58:38.848091 235558                        Options.allow_mmap_reads: 0
2025/08/09-14:58:38.848092 235558                       Options.allow_mmap_writes: 0
2025/08/09-14:58:38.848094 235558                        Options.use_direct_reads: 0
2025/08/09-14:58:38.848096 235558                        Options.use_direct_io_for_flush_and_compaction: 0
2025/08/09-14:58:38.848097 235558          Options.create_missing_column_families: 1
2025/08/09-14:58:38.848098 235558                              Options.db_log_dir: 
2025/08/09-14:58:38.848100 235558                                 Options.wal_dir: 
2025/08/09-14:58:38.848102 235558                Options.table_cache_numshardbits: 6
2025/08/09-14:58:38.848103 235558                         Options.WAL_ttl_seconds: 0
2025/08/09-14:58:38.848104 235558                       Options.WAL_size_limit_MB: 0
2025/08/09-14:58:38.848106 235558                        Options.max_write_batch_group_size_bytes: 1048576
2025/08/09-14:58:38.848108 235558             Options.manifest_preallocation_size: 4194304
2025/08/09-14:58:38.848109 235558                     Options.is_fd_close_on_exec: 1
2025/08/09-14:58:38.848112 235558                   Options.advise_random_on_open: 1
2025/08/09-14:58:38.848113 235558                    Options.db_write_buffer_size: 0
2025/08/09-14:58:38.848115 235558                    Options.write_buffer_manager: 0x7e0c1d201c80
2025/08/09-14:58:38.848117 235558           Options.random_access_max_buffer_size: 1048576
2025/08/09-14:58:38.848119 235558                      Options.use_adaptive_mutex: 0
2025/08/09-14:58:38.848120 235558                            Options.rate_limiter: (nil)
2025/08/09-14:58:38.848122 235558     Options.sst_file_manager.rate_bytes_per_sec: 0
2025/08/09-14:58:38.848124 235558                       Options.wal_recovery_mode: 0
2025/08/09-14:58:38.848128 235558                  Options.enable_thread_tracking: 0
2025/08/09-14:58:38.848130 235558                  Options.enable_pipelined_write: 0
2025/08/09-14:58:38.848131 235558                  Options.unordered_write: 0
2025/08/09-14:58:38.848134 235558         Options.allow_concurrent_memtable_write: 1
2025/08/09-14:58:38.848135 235558      Options.enable_write_thread_adaptive_yield: 1
2025/08/09-14:58:38.848137 235558             Options.write_thread_max_yield_usec: 100
2025/08/09-14:58:38.848139 235558            Options.write_thread_slow_yield_usec: 3
2025/08/09-14:58:38.848141 235558                               Options.row_cache: None
2025/08/09-14:58:38.848143 235558                              Options.wal_filter: None
2025/08/09-14:58:38.848145 235558             Options.avoid_flush_during_recovery: 0
2025/08/09-14:58:38.848146 235558             Options.allow_ingest_behind: 0
2025/08/09-14:58:38.848147 235558             Options.two_write_queues: 0
2025/08/09-14:58:38.848149 235558             Options.manual_wal_flush: 0
2025/08/09-14:58:38.848150 235558             Options.wal_compression: 0
2025/08/09-14:58:38.848153 235558             Options.background_close_inactive_wals: 0
2025/08/09-14:58:38.848154 235558             Options.atomic_flush: 0
2025/08/09-14:58:38.848155 235558             Options.avoid_unnecessary_blocking_io: 0
2025/08/09-14:58:38.848157 235558             Options.prefix_seek_opt_in_only: 0
2025/08/09-14:58:38.848159 235558                 Options.persist_stats_to_disk: 0
2025/08/09-14:58:38.848160 235558                 Options.write_dbid_to_manifest: 1
2025/08/09-14:58:38.848162 235558                 Options.write_identity_file: 1
2025/08/09-14:58:38.848164 235558                 Options.log_readahead_size: 0
2025/08/09-14:58:38.848166 235558                 Options.file_checksum_gen_factory: Unknown
2025/08/09-14:58:38.848167 235558                 Options.best_efforts_recovery: 0
2025/08/09-14:58:38.848170 235558                Options.max_bgerror_resume_count: 2147483647
2025/08/09-14:58:38.848172 235558            Options.bgerror_resume_retry_interval: 1000000
2025/08/09-14:58:38.848174 235558             Options.allow_data_in_errors: 0
2025/08/09-14:58:38.848175 235558             Options.db_host_id: __hostname__
2025/08/09-14:58:38.848177 235558             Options.enforce_single_del_contracts: true
2025/08/09-14:58:38.848180 235558             Options.metadata_write_temperature: kUnknown
2025/08/09-14:58:38.848181 235558             Options.wal_write_temperature: kUnknown
2025/08/09-14:58:38.848183 235558             Options.max_background_jobs: 2
2025/08/09-14:58:38.848185 235558             Options.max_background_compactions: -1
2025/08/09-14:58:38.848187 235558             Options.max_subcompactions: 1
2025/08/09-14:58:38.848189 235558             Options.avoid_flush_during_shutdown: 0
2025/08/09-14:58:38.848190 235558           Options.writable_file_max_buffer_size: 1048576
2025/08/09-14:58:38.848192 235558             Options.delayed_write_rate : 16777216
2025/08/09-14:58:38.848193 235558             Options.max_total_wal_size: 0
2025/08/09-14:58:38.848195 235558             Options.delete_obsolete_files_period_micros: 180000000
2025/08/09-14:58:38.848197 235558                   Options.stats_dump_period_sec: 600
2025/08/09-14:58:38.848198 235558                 Options.stats_persist_period_sec: 600
2025/08/09-14:58:38.848200 235558                 Options.stats_history_buffer_size: 1048576
2025/08/09-14:58:38.848202 235558                          Options.max_open_files: 256
2025/08/09-14:58:38.848203 235558                          Options.bytes_per_sync: 0
2025/08/09-14:58:38.848205 235558                      Options.wal_bytes_per_sync: 0
2025/08/09-14:58:38.848207 235558                   Options.strict_bytes_per_sync: 0
2025/08/09-14:58:38.848208 235558       Options.compaction_readahead_size: 2097152
2025/08/09-14:58:38.848210 235558                  Options.max_background_flushes: -1
2025/08/09-14:58:38.848211 235558 Options.daily_offpeak_time_utc: 
2025/08/09-14:58:38.848215 235558 Compression algorithms supported:
2025/08/09-14:58:38.848217 235558 	kZSTD supported: 0
2025/08/09-14:58:38.848219 235558 	kXpressCompression supported: 0
2025/08/09-14:58:38.848220 235558 	kBZip2Compression supported: 0
2025/08/09-14:58:38.848222 235558 	kZSTDNotFinalCompression supported: 0
2025/08/09-14:58:38.848223 235558 	kLZ4Compression supported: 1
2025/08/09-14:58:38.848225 235558 	kZlibCompression supported: 0
2025/08/09-14:58:38.848227 235558 	kLZ4HCCompression supported: 1
2025/08/09-14:58:38.848228 235558 	kSnappyCompression supported: 1
2025/08/09-14:58:38.848231 235558 Fast CRC32 supported: Not supported on x86
2025/08/09-14:58:38.848232 235558 DMutex implementation: pthread_mutex_t
2025/08/09-14:58:38.848234 235558 Jemalloc supported: 0
2025/08/09-14:58:38.856389 235558               Options.comparator: leveldb.BytewiseComparator
2025/08/09-14:58:38.856402 235558           Options.merge_operator: None
2025/08/09-14:58:38.856407 235558        Options.compaction_filter: None
2025/08/09-14:58:38.856410 235558        Options.compaction_filter_factory: None
2025/08/09-14:58:38.856414 235558  Options.sst_partitioner_factory: None
2025/08/09-14:58:38.856418 235558         Options.memtable_factory: SkipListFactory
2025/08/09-14:58:38.856422 235558            Options.table_factory: BlockBasedTable
2025/08/09-14:58:38.856533 235558            table_factory options:   flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x7e0c1d200980)
  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: 0x7e0c1d20a5d0
  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
2025/08/09-14:58:38.856549 235558        Options.write_buffer_size: 10485760
2025/08/09-14:58:38.856553 235558  Options.max_write_buffer_number: 2
2025/08/09-14:58:38.856560 235558          Options.compression: LZ4
2025/08/09-14:58:38.856565 235558                  Options.bottommost_compression: Disabled
2025/08/09-14:58:38.856568 235558       Options.prefix_extractor: nullptr
2025/08/09-14:58:38.856572 235558   Options.memtable_insert_with_hint_prefix_extractor: nullptr
2025/08/09-14:58:38.856575 235558             Options.num_levels: 7
2025/08/09-14:58:38.856579 235558        Options.min_write_buffer_number_to_merge: 1
2025/08/09-14:58:38.856582 235558     Options.max_write_buffer_number_to_maintain: 0
2025/08/09-14:58:38.856586 235558     Options.max_write_buffer_size_to_maintain: 0
2025/08/09-14:58:38.856590 235558            Options.bottommost_compression_opts.window_bits: -14
2025/08/09-14:58:38.856595 235558                  Options.bottommost_compression_opts.level: 32767
2025/08/09-14:58:38.856598 235558               Options.bottommost_compression_opts.strategy: 0
2025/08/09-14:58:38.856602 235558         Options.bottommost_compression_opts.max_dict_bytes: 0
2025/08/09-14:58:38.856605 235558         Options.bottommost_compression_opts.zstd_max_train_bytes: 0
2025/08/09-14:58:38.856609 235558         Options.bottommost_compression_opts.parallel_threads: 1
2025/08/09-14:58:38.856613 235558                  Options.bottommost_compression_opts.enabled: false
2025/08/09-14:58:38.856622 235558         Options.bottommost_compression_opts.max_dict_buffer_bytes: 0
2025/08/09-14:58:38.856627 235558         Options.bottommost_compression_opts.use_zstd_dict_trainer: true
2025/08/09-14:58:38.856630 235558            Options.compression_opts.window_bits: -14
2025/08/09-14:58:38.856634 235558                  Options.compression_opts.level: 32767
2025/08/09-14:58:38.856638 235558               Options.compression_opts.strategy: 0
2025/08/09-14:58:38.856641 235558         Options.compression_opts.max_dict_bytes: 0
2025/08/09-14:58:38.856645 235558         Options.compression_opts.zstd_max_train_bytes: 0
2025/08/09-14:58:38.856649 235558         Options.compression_opts.use_zstd_dict_trainer: true
2025/08/09-14:58:38.856652 235558         Options.compression_opts.parallel_threads: 1
2025/08/09-14:58:38.856656 235558                  Options.compression_opts.enabled: false
2025/08/09-14:58:38.856660 235558         Options.compression_opts.max_dict_buffer_bytes: 0
2025/08/09-14:58:38.856664 235558      Options.level0_file_num_compaction_trigger: 4
2025/08/09-14:58:38.856667 235558          Options.level0_slowdown_writes_trigger: 20
2025/08/09-14:58:38.856671 235558              Options.level0_stop_writes_trigger: 36
2025/08/09-14:58:38.856674 235558                   Options.target_file_size_base: 67108864
2025/08/09-14:58:38.856678 235558             Options.target_file_size_multiplier: 1
2025/08/09-14:58:38.856682 235558                Options.max_bytes_for_level_base: 268435456
2025/08/09-14:58:38.856685 235558 Options.level_compaction_dynamic_level_bytes: 1
2025/08/09-14:58:38.856692 235558          Options.max_bytes_for_level_multiplier: 10.000000
2025/08/09-14:58:38.856697 235558 Options.max_bytes_for_level_multiplier_addtl[0]: 1
2025/08/09-14:58:38.856702 235558 Options.max_bytes_for_level_multiplier_addtl[1]: 1
2025/08/09-14:58:38.856705 235558 Options.max_bytes_for_level_multiplier_addtl[2]: 1
2025/08/09-14:58:38.856709 235558 Options.max_bytes_for_level_multiplier_addtl[3]: 1
2025/08/09-14:58:38.856713 235558 Options.max_bytes_for_level_multiplier_addtl[4]: 1
2025/08/09-14:58:38.856716 235558 Options.max_bytes_for_level_multiplier_addtl[5]: 1
2025/08/09-14:58:38.856719 235558 Options.max_bytes_for_level_multiplier_addtl[6]: 1
2025/08/09-14:58:38.856725 235558       Options.max_sequential_skip_in_iterations: 8
2025/08/09-14:58:38.856729 235558                    Options.max_compaction_bytes: 1677721600
2025/08/09-14:58:38.856733 235558                        Options.arena_block_size: 1048576
2025/08/09-14:58:38.856737 235558   Options.soft_pending_compaction_bytes_limit: 68719476736
2025/08/09-14:58:38.856741 235558   Options.hard_pending_compaction_bytes_limit: 274877906944
2025/08/09-14:58:38.856745 235558                Options.disable_auto_compactions: 0
2025/08/09-14:58:38.856750 235558                        Options.compaction_style: kCompactionStyleLevel
2025/08/09-14:58:38.856754 235558                          Options.compaction_pri: kMinOverlappingRatio
2025/08/09-14:58:38.856758 235558 Options.compaction_options_universal.size_ratio: 1
2025/08/09-14:58:38.856761 235558 Options.compaction_options_universal.min_merge_width: 2
2025/08/09-14:58:38.856765 235558 Options.compaction_options_universal.max_merge_width: 4294967295
2025/08/09-14:58:38.856769 235558 Options.compaction_options_universal.max_size_amplification_percent: 200
2025/08/09-14:58:38.856773 235558 Options.compaction_options_universal.compression_size_percent: -1
2025/08/09-14:58:38.856777 235558 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
2025/08/09-14:58:38.856781 235558 Options.compaction_options_universal.max_read_amp: -1
2025/08/09-14:58:38.856784 235558 Options.compaction_options_fifo.max_table_files_size: 1073741824
2025/08/09-14:58:38.856789 235558 Options.compaction_options_fifo.allow_compaction: 0
2025/08/09-14:58:38.856801 235558                   Options.table_properties_collectors: 
2025/08/09-14:58:38.856805 235558                   Options.inplace_update_support: 0
2025/08/09-14:58:38.856814 235558                 Options.inplace_update_num_locks: 10000
2025/08/09-14:58:38.856819 235558               Options.memtable_prefix_bloom_size_ratio: 0.000000
2025/08/09-14:58:38.856823 235558               Options.memtable_whole_key_filtering: 0
2025/08/09-14:58:38.856827 235558   Options.memtable_huge_page_size: 0
2025/08/09-14:58:38.856830 235558                           Options.bloom_locality: 0
2025/08/09-14:58:38.856833 235558                    Options.max_successive_merges: 0
2025/08/09-14:58:38.856836 235558             Options.strict_max_successive_merges: 0
2025/08/09-14:58:38.856840 235558                Options.optimize_filters_for_hits: 0
2025/08/09-14:58:38.856843 235558                Options.paranoid_file_checks: 0
2025/08/09-14:58:38.856846 235558                Options.force_consistency_checks: 1
2025/08/09-14:58:38.856849 235558                Options.report_bg_io_stats: 0
2025/08/09-14:58:38.856852 235558                               Options.ttl: 2592000
2025/08/09-14:58:38.856855 235558          Options.periodic_compaction_seconds: 0
2025/08/09-14:58:38.856859 235558                        Options.default_temperature: kUnknown
2025/08/09-14:58:38.856863 235558  Options.preclude_last_level_data_seconds: 0
2025/08/09-14:58:38.856866 235558    Options.preserve_internal_time_seconds: 0
2025/08/09-14:58:38.856869 235558                       Options.enable_blob_files: false
2025/08/09-14:58:38.856872 235558                           Options.min_blob_size: 0
2025/08/09-14:58:38.856880 235558                          Options.blob_file_size: 268435456
2025/08/09-14:58:38.856887 235558                   Options.blob_compression_type: NoCompression
2025/08/09-14:58:38.856891 235558          Options.enable_blob_garbage_collection: false
2025/08/09-14:58:38.856895 235558      Options.blob_garbage_collection_age_cutoff: 0.250000
2025/08/09-14:58:38.856905 235558 Options.blob_garbage_collection_force_threshold: 1.000000
2025/08/09-14:58:38.856908 235558          Options.blob_compaction_readahead_size: 0
2025/08/09-14:58:38.856911 235558                Options.blob_file_starting_level: 0
2025/08/09-14:58:38.856915 235558         Options.experimental_mempurge_threshold: 0.000000
2025/08/09-14:58:38.856918 235558            Options.memtable_max_range_deletions: 0
2025/08/09-14:58:38.871668 235558 DB pointer 0x7e0c1d282400
