Amazon Aurora vs RocksDB

Amazon Aurora is a MySQL and PostgreSQL-compatible relational database service built for the cloud, offered as part of Amazon Web Services. It provides up to five times the throughput of standard MySQL and three times that of PostgreSQL with automatic scaling, replication, and backup.

RocksDB is Embeddable persistent key-value store from Meta optimized for fast storage, forked from LevelDB.. It is available under a free model. This tool falls under the databases category.