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