Facebook created and open-sourced a next generation OLTP SQL database on modern Flash storage called MyRocks — a RocksDB storage engine for MySQL. Facebook has used MySQL (InnoDB) for many years, and InnoDB is a great general purpose database and in many cases is the best fit. Facebook wanted more space to write optimized databases that work more efficiently on Flash. There was room to write optimized NoSQL databases outside of MySQL ecosystem, but the company wanted to utilize existing MySQL assets like client programs relying on SQL and MySQL connectors, Replication, and administration tools. To meet these requirements, it created a new MySQL storage engine on top of RocksDB — MyRocks. In this session, the speaker will introduce MyRocks, its architecture, and how Facebook is using MyRocks now.