_gZkClient.subscribeChildChanges(keyBuilder.messages("localhost_12918").getPath(), listener);
ClusterController controller =
new ClusterController(clusterName, "controller_0", ZK_ADDR);
controller.syncStart();
// pause controller
// --enableCluster <clusterName true/false>
ClusterSetup.processCommandLineArgs(new String[]{"--zkSvr", ZK_ADDR, "--enableCluster", clusterName, "false"});