this.masterAddressTracker.start();
blockAndCheckIfStopped(this.masterAddressTracker);
// Wait on cluster being up. Master will set this flag up in zookeeper
// when ready.
this.clusterStatusTracker = new ClusterStatusTracker(this.zooKeeper, this);
this.clusterStatusTracker.start();
blockAndCheckIfStopped(this.clusterStatusTracker);
// Create the catalog tracker and start it;
this.catalogTracker = new CatalogTracker(this.zooKeeper, this.conf, this);