Vitess is a database clustering system for horizontal scaling of MySQL through generalized sharding.

By encapsulating shard-routing logic, Vitess allows application code and database queries to remain agnostic to the distribution of data onto multiple shards. With Vitess, you can even split and merge shards as your needs grow, with an atomic cutover step that takes only a few seconds.

Vitess has been a core component of YouTube's database infrastructure since 2011, and has grown to encompass tens of thousands of MySQL nodes.

For more about Vitess, please visit vitess.io.

Vitess has a growing community. You can view the list of adopters here.

Ask questions in the vitess@googlegroups.com discussion forum. You may also request access to the Vitess Slack channel.

Subscribe to vitess-announce@googlegroups.com or the Vitess Blog for low-frequency updates like new features and releases.

Unless otherwise noted, the Vitess source files are distributed under the Apache Version 2.0 license found in the LICENSE file.