Difference between revisions of "RocksDB"

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[[wikipedia:RocksDB]] is a high performance embedded database/library for [[key-value]] [[database]] released in 2012 and written in [[C++]]. Database has to be open by a [[single]] [[process]] for writting and multiprocessor for reading.<ref>https://github.com/facebook/rocksdb/wiki/RocksDB-FAQ</ref>. A single DB can be configured to store its data in multiple directories.
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[[wikipedia:RocksDB]] is a high performance embedded database/library for [[key-value]] [[database]] released in [[2012]] and written in [[C++]]. Database has to be open by a [[single]] [[process]] for writting and multiprocessor for reading.<ref>https://github.com/facebook/rocksdb/wiki/RocksDB-FAQ</ref>. A single DB can be configured to store its data in multiple directories.
 
It is based on a log-structured merge-tree ([[LSM]] tree) data structure
 
It is based on a log-structured merge-tree ([[LSM]] tree) data structure
  

Revision as of 14:12, 23 August 2020

wikipedia:RocksDB is a high performance embedded database/library for key-value database released in 2012 and written in C++. Database has to be open by a single process for writting and multiprocessor for reading.[1]. A single DB can be configured to store its data in multiple directories. It is based on a log-structured merge-tree (LSM tree) data structure

RocksDB execute periodic compactions which reads from one or more SST files, perform merge-sort like operation, generate new SST files, and delete the old SST files it inputs.

RocksDB databases include support for field compression using Zstandard

Maximum recommended sizes for key and value are 8MB and 3GB respectively.

Installation


Related binaries: sst_dump and SstFileReader.

Activities

  1. Read RocksDB source: https://github.com/facebook/rocksdb/wiki/RocksDB-FAQ
  2. Review MyRocks: MySQL/MariaDB storage engine that integrates with RocksDB.

See also

  • https://github.com/facebook/rocksdb/wiki/RocksDB-FAQ
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