I just start reading about zookeeper. And I am getting confused about the data replication and data module. The ZooKeeper ensemble will contain multiple nodes(Machine) with one leader and others ...

Here is the output of zookeeper monitoring zk_version 3.4.6-1569965, built on 02/20/2014 09:09 GMT zk_avg_latency 0 zk_max_latency 0 zk_min_latency 0 zk_packets_received 3 zk_packets_sent 2 ...