active_master_role writer <host default> cluster_interface eth0 pid_path /var/run/mysql-mmm/mmm_agentd.pid bin_path /usr/libexec/mysql-mmm/ replication_user replicant replication_password slave agent_user mmm_agent agent_password RepAgent </host> <host db1> ip 192.168.100.49 mode master peer db2 </host> <host db2> ip 192.168.100.50 mode master peer db1 </host> #<host db3> # ip 192.168.100.51 # mode slave #</host> <role writer> hosts db1, db2 ips 192.168.100.250 mode exclusive </role> <role reader> hosts db1, db2 ips 192.168.100.251, 192.168.100.252 mode balanced </role>