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  • 过期key索引

    TTLIndex TTLIndex 对于设置了过期时间的数据,需要过期删除。对于不同类型,采用不同的删除方法。 对于string的过期,一方面是在get的时候被动删除。另外一方面,会通过compactFilter 在commpaction 的时候删除掉过期的string。 对于hash等复杂结构,一方面是在get的时候被动删除,如果此时二级ke...
  • Write Stalls

    Causes of Write Stalls Non-blocking Writes Write Stall Mitigation Write Buffer Manager Stalls RocksDB has extensive system to slow down writes when flush or compaction can’t k...
  • Configure TiKV

    Although you are recommended to get started with TiKV using the default configuration, TiKV provides many configuration parameters to tweak its behavior, which allows you to confi...
  • 调试工具

    调试工具 调试工具 子命令 功能 sst_dump 使用RocksDB的sst_dump 工具,将rocksdb的二进制sstable数据转换为可读的文本数据 mlog_dump 将Pegasus的二进制commit log数据转换为可读的文本数据 local_get 从本地数据库获取值(原来的调试工具)
  • Design

    Design Comparisons Benchmarks Design Badger was written with these design goals in mind: Write a key-value database in pure Go. Use latest research to build the fastest KV d...
  • Features Not in LevelDB

    RocksDB Features that are not in LevelDB Performance Features Alternative Data Structures And Formats Tunability Manageability RocksDB Features that are not in LevelDB We ...
  • Storage服务配置

    Storage服务配置 配置文件使用方式 配置文件参数值说明 basics配置 logging配置 networking配置 raft配置 disk配置 misc配置 rocksdb options配置 超级节点处理(出入边数量极多的点) 数据量大而内存不够时 Storage服务配置 Storage服务提供了两份初始配置文件neb...
  • Storage服务配置

    Storage服务配置 配置文件使用方式 配置文件参数值说明 basics配置 logging配置 networking配置 raft配置 disk配置 misc配置 rocksdb options配置 超级节点处理(出入边数量极多的点) 数据量大而内存不够时 Storage服务配置 Storage服务提供了两份初始配置文件neb...
  • Publication

    Optimizing Space Amplification in RocksDB , CIDR 2017, Siying Dong, Mark Callaghan, Leonidas Galanis, Dhruba Borthakur, Tony Savor, Michael Stumm link Reducing DRAM footprint wi...
  • Configure TiKV

    Although you are recommended to get started with TiKV using the default configuration, TiKV provides many configuration parameters to tweak its behavior, which allows you to confi...