title: zookeeper server error: My id 4 not in the peer list
body: <p>I am trying to install zookeeper and HBase in distributed mode but when I start my last node of zookeeper quorum I am getting excepton:</p>
  
  <pre><code>2013-09-05 12:02:09,230 - ERROR [main:QuorumPeer@171] - Setting LearnerType to   PARTICIPANT but 4 not in QuorumPeers. 
  2013-09-05 12:02:09,246 - INFO  [main:QuorumPeer@444] - acceptedEpoch not found!  Creating with a reasonable default of 0. This should only happen when you are upgrading   your installation
  2013-09-05 12:02:09,250 - ERROR [main:QuorumPeerMain@89] - Unexpected exception, exiting abnormally
  java.lang.RuntimeException: My id 4 not in the peer list
  at  org.apache.zookeeper.server.quorum.QuorumPeer.startLeaderElection(QuorumPeer.java:479)
  at org.apache.zookeeper.server.quorum.QuorumPeer.start(QuorumPeer.java:411)
  at org.apache.zookeeper.server.quorum.QuorumPeerMain.runFromConfig(QuorumPeerMain.java:151)
  at org.apache.zookeeper.server.quorum.QuorumPeerMain.initializeAndRun(QuorumPeerMain.java:111)
  at org.apache.zookeeper.server.quorum.QuorumPeerMain.main(QuorumPeerMain.java:78)
  </code></pre>
  
  <p>I have zookeeper quorum set to 3 - containing master + 2data nodes from hadoop.
  zoo.cfg list all those machines. And they have myid set to 1 for master, 3 for first data mode and 4 for second data node. Master and first data node runs just fine.</p>