Mysql. For synchronous data replication What would you use?
Replication in MySQL supports different types of synchronization.
The original type of synchronization is one-way, asynchronous replication, in which one server acts as the master,
while one or more other servers act as slaves.
This is in contrast to the synchronous replication which is a characteristic of MySQL Cluster.
For scenarios where synchronous replication is required, use MySQL Cluster
From the reference manual: https://dev.mysql.com/doc/refman/5.7/en/replication.html