RocksDB is widely used in many of projects for years, i think it's quite mature. Not just TiDB and CockroachDB, MyRocks and MongoRocks are using RocksDB as sto

RocksDB is widely used in many of projects for years, i think it's quite mature. Not just TiDB and CockroachDB, MyRocks and MongoRocks are using RocksDB as storage engine too. Also there are plenty of other projects are using RocksDB. If you are worry about the adding new feature of RocksDB, yes, you are right, but all of the storage engine are changing rapidly(even InnoDB which is used by MySQL as default engine), Anyway, happy hacking :)