masterha_master_switch − Switching MySQL master server to one of other slave servers
# For master failover
masterha_master_switch −−master_state=dead −−global_conf=/etc/masterha_default.cnf −−conf=/usr/local/masterha/conf/app1.cnf −−dead_master_host=host1
# For online master switch
masterha_master_switch −−master_state=alive −−global_conf=/etc/masterha_default.cnf −−conf=/usr/local/masterha/conf/app1.cnf
See online reference (http://code.google.com/p/mysql−master−ha/wiki/masterha_master_switch) for details.
See online reference (http://code.google.com/p/mysql−master−ha/wiki/masterha_master_switch) for details.