Another good candidate is TiDB (https://github.com/pingcap/tidb). It has elastic scalability, ACID compliances, high availability, etc.
At least, TiDB, CRDB, RethinkDB are open source :)
At least, TiDB, CRDB, RethinkDB are open source :)
So is CockroachDB too?
The parent poster was referring to CockroachDB as CRDB.