zookeeper server error: My id 4 not in the peer list

Question

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:

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)

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.

Answer 1

if you are facing this problem in case of Kafka installation then go to zookeeper.properties file and check what is value of myid i.e.

server.<<myid>> = hostname:2181

and same value of myid must be in myid file present in datadir of zoookeer, which in my case is:

/tmp/zookeeper/myid