http:
  # normally parent path of db path
  document_root: /dev/shm
  listening_ports: '2011'
  auto_start_http: true
setenv:
  DictZipBlobStore_zipThreads: 32
  StrSimpleEnvNameNotOverwrite: StringValue
  IntSimpleEnvNameNotOverwrite: 16384
  OverwriteThisEnv:
    #comment: overwrite is default to false
    overwrite: true
    value: force overwrite this env by overwrite true
AnyPlugin:
  pretty_user_key_coder:
    class: PrettyHexUserKeyCoder
    params:
      prefix_len: 0
Cache:
  lru_cache:
    class: LRUCache
    params:
      capacity: 16G
      #num_shard_bits: -1 # max is 6, mostly is 6
      #strict_capacity_limit: false
      #high_pri_pool_ratio: 0.5 # default is 0
      #use_adaptive_mutex: false
      #metadata_charge_policy: kFullChargeCacheMetadata
permissions:
  web_compact: true
Statistics:
  stat:
    class: default
    params:
      discard_tickers:
      #comment: 可以仅指定前缀，必须是以 . 为边界的前缀，例如下面两个必须分别指定
      - rocksdb.block.cache
      - rocksdb.block.cachecompressed
      # comment: 上面两个也可以用下面这一个概括
      - rocksdb.block
      # 精确指定
      - rocksdb.memtable.payload.bytes.at.flush
      - rocksdb.memtable.garbage.bytes.at.flush
      # pika 未使用 txn
      - rocksdb.txn
      - rocksdb.blobdb
      - rocksdb.row.cache
      - rocksdb.number.block
      - rocksdb.bloom.filter
      - rocksdb.persistent
      - rocksdb.sim.block.cache
      discard_histograms:
      # comment: ....
      - rocksdb.blobdb
      - rocksdb.bytes.compressed
      - rocksdb.bytes.decompressed
      - rocksdb.num.index.and.filter.blocks.read.per.level
      - rocksdb.num.data.blocks.read.per.level
      - rocksdb.compression.times.nanos
      - rocksdb.decompression.times.nanos
      - rocksdb.read.block.get.micros
      - rocksdb.write.raw.block.micros
      # comment end of array
      #stats_level: kAll
      stats_level: kDisableAll
MemTableRepFactory:
  cspp:
    #class: CSPPMemTab # canonical class name
    class: cspp # "cspp" is simplified class name
    params:
      mem_cap: 3G  # just reserve virtual address space
      cspp_debug_level: 1
      # vm_explicit_commit: true # default false
      # vm_background_commit: false # default false
      chunk_size: 256K # default 2M
      use_vm: true # default is true
      # use_hugepage: false # equivalent to kNone, default
      # use_hugepage: true  # equivalent to kMmap
      # use_hugepage: kNone # default, dont use hugepage
      # use_hugepage: kMmap # mmap(MAP_HUGETLB)
      # use_hugepage: kTransparent # mmap(normal) + madvise(MADV_HUGEPAGE)
      token_use_idle: true
      read_by_writer_token: true
      # convert_to_sst: kDontConvert
      # convert_to_sst: kDumpMem
      convert_to_sst: kFileMmap
      sync_sst_file: false
  skiplist:
    class: SkipList
    params:
      lookahead: 0
FilterPolicy:
  bloom:
    class: BloomFilter
    params:
      bits_per_key: 10
      use_block_based_builder: false
TableFactory:
  fast:
    class: SingleFastTable
    params:
      indexType: MainPatricia
      keyPrefixLen: 0
  zipkeyonly:
    class: ToplingZipTable
    params:
      localTempDir: /dev/shm
      indexNestLevel: 1
      enableStatistics: false
      warmupLevel: kIndex
      acceptCompressionRatio: 0.8
      offsetArrayBlockUnits: 128
      minDictZipValueSize: "10M"
      minPreadLen: -1
      sampleRatio: 0.01
      checksumLevel: 0
      debugLevel: 0
  simple:
    class: SimpleTopTable
    params:
      writeMethod: kToplingFileWrite
      fileWriteBufferSize: 8192
      collectProperties: true
      forceNeedCompact: true
      debugLevel: 0
  zipkeyvalue:
    class: ToplingZipTable
    params:
      indexType: Mixed_XL_256_32_FL
      #indexType: Mixed_SE_512_32_FL
      #keyPrefixLen: 0
      localTempDir: /dev/shm
      indexNestLevel: 1
      enableStatistics: false
      warmupLevel: kIndex
      acceptCompressionRatio: 0.8
      offsetArrayBlockUnits: 128
      sampleRatio: 0.01
      checksumLevel: 0
      debugLevel: 0
      #enableEntropyStore: true
      #acceptEntropyStoreZipRatio: 2.0 # always accept
      minDictZipValueSize: 3000
      minPreadLen: -1
  bb:
    class: BlockBasedTable
    params:
      #checksum: kCRC32c
      #checksum: kXXH3 # default
      block_size: 4K
      block_restart_interval: 16
      #block_size: 512  # small, makes block_cache nearly a row cache
      #block_restart_interval: 1  # fit for small block_size
      index_block_restart_interval: 1
      metadata_block_size: 4K
      #enable_index_compression: true
      block_cache: "${lru_cache}"
      block_cache_compressed:
      persistent_cache:
      filter_policy: bloom # use ~20% of raw ukey size in db_bench key_size=8
  cspp_memtab_sst:
    class: CSPPMemTabTable
    params: # empty params
  dispatch:
    class: DispatcherTable
    params:
      default: fast
      readers:
        SingleFastTable: fast
        SimpleTopTable: simple
        ToplingZipTable: zipkeyvalue
        BlockBasedTable: bb
        CSPPMemTabTable: cspp_memtab_sst
      level_writers: [simple, simple, zipkeyonly, zipkeyonly, zipkeyonly, zipkeyonly, zipkeyonly]
WriteBufferManager:
  wbm:
    class: WriteBufferManager
    params:
      buffer_size: 4G
SstPartitionerFactory:
  fixed-prefix:
    class: SstPartitionerFixedPrefix
    params:
      prefix_len: 1
CFOptions:
  default:
    #enable_blob_files: true
    #min_blob_size: 200
    enable_blob_garbage_collection: true
    html_user_key_coder: ${pretty_user_key_coder} # when db_bench -wkey_file=...
    sst_partitioner_factory: ${fixed-prefix}
    max_write_buffer_number: 3
    #disable_auto_compactions: true
    #memtable_factory: "${skiplist}"
    memtable_factory: "${cspp}"
    write_buffer_size: 64M  # CI: align with RocksDB default 64MB
    target_file_size_base: 32M
    target_file_size_multiplier: 1.5
    table_factory: dispatch
    #max_bytes_for_level_base: 512M # default = max(256M, write_buffer_size)
    max_bytes_for_level_multiplier: 10
    ########
    # For ToplingDB distributed compaction, this should set to false
    level_compaction_dynamic_level_bytes: false # rocksdb-8.04 default true
    #level_compaction_dynamic_level_bytes: true # rocksdb-8.04 default true
    level0_slowdown_writes_trigger: 4
    level0_stop_writes_trigger: 36
    level0_file_num_compaction_trigger: 4
    compression: kSnappyCompression
    compression_per_level:
    - kNoCompression
    - kSnappyCompression
    - kSnappyCompression
    - kSnappyCompression
    - kSnappyCompression
    - kSnappyCompression
    - kZSTD
    compaction_executor_factory: dcompact
DBOptions:
  default:
    memtable_as_log_index: true
    max_total_wal_size: 4G
    allow_fallocate: false # default true
    allow_fdatasync: false # default true
    create_if_missing: true
    create_missing_column_families: true
    #enable_pipelined_write: true # must be false if unordered_write is true
    #unordered_write: true
    #info_log_level: DEBUG_LEVEL
    max_background_flushes: 1 # default is -1
    max_background_compactions: 4 # default is -1
    max_subcompactions: 1 # default is 1
    max_level1_subcompactions: 2 # default 0 to use max_subcompactions
    inplace_update_support: false # default is false
    write_buffer_manager: "${wbm}"
    WAL_size_limit_MB: 0
    #statistics: "${stat}" # if defined, it incurs some overhead
databases:
  db_bench_enterprise:
    method: DB::Open
    params:
      db_options: "$default"
      cf_options: "$default" # for single cf db
      column_families:       # for multi  cf db
        default: "$default"
      dyna_cf_opt: "$default"
      #path is optional, if not defined, use name as path
      #last part of path must be same as name(here is 'db_bench_enterprise')
      # Must be strictly under hoster_root: dcompact hoster derives
      # dbname = path minus "hoster_root/" prefix (must be non-empty).
      path: /dev/shm/db_bench_enterprise
  db_test:
    method: DB::Open
    params:
      db_options: "$default"
open: db_bench_enterprise
CompactionExecutorFactory:
  dcompact:
    class: DcompactEtcd
    params:
      # etcd unused; class name retained. Same-host HTTP worker only.
      # fail fast: on dcompact failure abort instead of local compact,
      # so a broken worker link can never silently skew the benchmark.
      allow_fallback_to_local: false
      # initial guess only; auto-adjusted from real compact throughput
      estimate_speed: 10M
      # worker shares 4-vCPU CI runner with readers; be generous before
      # declaring a job timed-out (multiplier of estimated compact time)
      timeout_multiplier: 30
      # local worker, fail fast: short per-attempt floor, single try,
      # 1s http connect timeout (loopback answers instantly or never)
      overall_timeout: 3
      http_max_retry: 1
      http_timeout: 1
      # Path mapping: worker replaces hoster_root prefix with
      # NFS_MOUNT_ROOT/instance_name. Same-host identity mapping requires
      #   hoster_root == NFS_MOUNT_ROOT + "/" + instance_name
      # (worker env: NFS_MOUNT_ROOT=/dev, NFS_DYNAMIC_MOUNT=0).
      # hoster_root must be a strict parent of databases.*.path.
      hoster_root: /dev/shm
      instance_name: shm
      nfs_mnt_src: static-mounted
      http_workers:
      - http://127.0.0.1:8080
      # output level >= 1 goes remote; only flush/L0-intra stays local
      dcompact_min_level: 2