Take the 2-minute tour ×
Database Administrators Stack Exchange is a question and answer site for database professionals who wish to improve their database skills and learn from others in the community. It's 100% free, no registration required.

What I'd like to do is to replicate data nodes within a cluster not only for backup/failover purposes but also for scale-out reasons. Is this possible? If not: why? If yes: how do I do it? Actually, it would be nice if someone could briefly explain how the data node replication technically works for my better understanding :)

share|improve this question

1 Answer 1

MySQL Cluster automatically automatically replicates data nodes, based on the number of replicas and the number of data nodes you specify. Your tables are automatically sharded across these nodes, and updates are replicated between them for HA

Worth watching the short demo to see more: http://www.oracle.com/pls/ebn/swf_viewer.load?p_shows_id=11464419

For more detail - take a look at the Cluster overview section of the docs: http://dev.mysql.com/doc/refman/5.5/en/mysql-cluster-basics.html

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.