admin.addResource(clusterName, resourceName, 4, "MasterSlave", idealStateRebalancerModeStr);
// rebalance resource "TestDB" using 3 replicas
admin.rebalance(clusterName, resourceName, 3);
} else if (idealStateRebalancerMode == RebalanceMode.CUSTOMIZED) {
admin.addIdealState(clusterName, resourceName, idealStateJsonFile);
}
// start helix controller
new Thread(new Runnable() {