private ClusterStatusTracker clusterStatusTracker;
private ActiveMasterManager activeMasterManager;
public DummyMaster(ZooKeeperWatcher zk, ServerName master) {
this.clusterStatusTracker =
new ClusterStatusTracker(zk, this);
clusterStatusTracker.start();
this.activeMasterManager =
new ActiveMasterManager(zk, master, this);
zk.registerListener(activeMasterManager);