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.

To report a problem the best way to get attention is to create a GitHub issue.

For topics that are better discussed live, please join the Vitess Slack workspace. You may post any questions on the #general channel or join some of the special-interest channels.

Follow Vitess Blog for low-frequency updates like new features and releases.

To report a security vulnerability, please email vitess-maintainers.

See Security for a full outline of the security process.

A third party security audit was performed by Cure53. You can see the full report here.

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