These days, I'm using MMM(Multi-Master Replication Manager). MMM is for the cluster which has one writer role and some reader roles. If you have some master databases, you have to separate configuration file for their master databases like the following: mmm_mond_cluster1.conf mmm_mond_cluster2.confAnd you have to use command like this: # mmm_control @cluster1 show # mmm_control @cluster2 showmmm_