// use the simple command manger, non-gossip ackmanager
cfg.set(FlumeConfiguration.MASTER_STORE, "zookeeper");
master = new FlumeMaster(new CommandManager(), new ConfigManager(),
new StatusManager(), new MasterAckManager(), cfg);
master.serve();
MasterRPC rpc = new DirectMasterRPC(master);
FlumeNode node = new FlumeNode(rpc, false, false);
// should have nothing.
assertEquals(0, node.getLogicalNodeManager().getNodes().size());
master.getSpecMan().addLogicalNode(NetUtils.localhost(),