MMM (Mysql Master-Master Replication) on EC2 | Life ScalingMaintaining a MySQL high availablity cluster is one of the first missions encountered when scaling web applications. Very quickly your application gets to the point where the one database machine you have is not enough to handle the load, and you need to make sure that when failure happens (and it always happens), your cluster is ready to failover gracefully. Some basic MySQL replication paradigms
