Vitess combines many important MySQL features with the scalability of a NoSQL database. Its built-in sharding features let you grow your database without adding sharding logic to your application.
Vitess automatically rewrites queries that hurt database performance. It also uses caching mechanisms to mediate queries and prevent duplicate queries from simultaneously reaching your database.
MySQL doesn’t natively support sharding, but you will likely need it as your database grows. Vitess saves you from having to add sharding logic to your app and also enables live resharding with minimal read-only downtime.
Vitess eliminates the high-memory overhead of MySQL connections. Vitess servers easily handle thousands of connections at once.
Vitess has been a core component of YouTube’s database infrastructure since 2011, and has grown to encompass tens of thousands of MySQL nodes.
Vitess in Go 🙂
Vitess is a database clustering system for horizontal scaling of MySQL through generalized sharding.
https://github.com/vitessio/vitess