key-value 存儲系統，RocksDB 4.1 發布

RocksDB 是一個來自 非死book 的可嵌入式的支持持久化的 key-value 存儲系統，也可作為 C/S 模式下的存儲數據庫，但主要目的還是嵌入式。RocksDB 基于 LevelDB 構建。關于 RocksDB 的性能說明。

新特性

• Added single delete operation as a more efficient way to delete keys that have not been overwritten.

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• Added experimental AddFile() to DB interface that allow users to add files created by SstFileWriter into an empty Database, see include/rocksdb/sst_file_writer.h and DB::AddFile() for more info.

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• Added support for opening SST files with .ldb suffix which enables opening LevelDB databases.

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• CompactionFilter now supports filtering of merge operands and merge results.

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  公共 API 更新

  • Added SingleDelete() to the DB interface.

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  • Added AddFile() to DB interface.

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  • Added SstFileWriter class.

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  • CompactionFilter has a new method FilterMergeOperand() that RocksDB applies to every merge operand during compaction to decide whether to filter the operand.

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  • We removed CompactionFilterV2 interfaces from include/rocksdb/compaction_filter.h. The functionality was deprecated already in version 3.13.

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    下載頁面：rocksdb-4.1

    
    
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