title: unable to determine zookeeper ensemble health
body: <p>I setup a 3 node Zookeeper cdh4 ensemble on RHEL 5.5 machines. I have started the service by running <code>zkServer.sh</code> on each of the nodes. ZooKeeper instance is running on all the nodes, but how do I know if it is a part of an ensemble or are they running as individual services?</p>
  
  <p>I tried to start the service and check the ensemble as stated <a href="http://archive.cloudera.com/cdh4/cdh/4/zookeeper/zookeeperAdmin.html#sc_zkMulitServerSetup" rel="nofollow">here</a>, on Cloudera's site, but it throws a ClassNotFoundException.</p>