RocksDB a fast-on-disk data store with an advanced caching layer, which could further minimize latency when reading/writing to and from the disk as it is optimized for fast, low-latency storage. Used in production systems at multiple web-scale enterprises (Facebook, Yahoo, LinkedIn), RocksDB is based on LevelDB but with increased performance, thanks to its ability to exploit multiple CPU cores and SSD storage for input/output bound workloads. Its use in MyRocks, for example, led to less SSD storage use, longer SSD endurance, and more available IO capacity for handling queries.

In the Steem blockchain context, it is used to dramatically improve the performance of account history plugin of steemd starting with the v0.19.10.

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Last Updated: 10/10/2018, 8:39:03 AM