Get the active name node information for HDFs from zookeeper

String Hadoopzknode = "/hadoop-ha/${cluster_name}/activestandbyelectorlock";
ZooKeeper keeper = new ZooKeeper (${zookeeperconnection}, 10000, new Simplewatcher ());
Stat stat = new stat ();
byte[] data = Keeper.getdata (Hadoopzknode, New Simplewatcher (), stat);

Because HDFs serializes data before it is written to zookeeper, it needs to be deserialized by calling the appropriate deserialization method when it gets to the byte array
Activenodeinfo Activenodeinfo = HAZKInfoProtos.ActiveNodeInfo.parseFrom (data);

Get the active name node information for HDFs from zookeeper