
Initialize global variable MINION_IPS in setClusterInfo function. MINION_IPS is defined as a global variable, and is concatenated with other nodeIP. When setClusterInfo is called for many times, this could cause potential problems. Such as, you will have MINION_IPS=192.168.0.2,192.168.0.3,192.168.0.2,192.168.0.3 which is obviously wrong. Update util.sh