The Prometheus monitoring system and time series database.
CockroachDB - the open source, cloud-native SQL database.
TiDB is an open source distributed HTAP database compatible with the MySQL protocol
Vitess is a database clustering system for horizontal scaling of MySQL.
Scalable datastore for metrics, events, and real-time analytics
An embedded key/value database for Go.
GitHub's Online Schema Migrations for MySQL
Fast key-value DB in Go.