title: kafka cant connect to zookeeper- FATAL Fatal error during KafkaServerStable startup
body: <p>Well..every service in the world can connect to my zookeeper expect kafka. Below is my connection string in server.properties file</p>
  
  <pre><code>zk.connect=1.dzk.syd.druid.neo.com:2181, 2.dzk.syd.druid.neo.com:2181
  </code></pre>
  
  <p>Have have all ports on the two zookeeper servers ....total promiscuous mode. I can even telnet into the zookeeper server from the kafka server..</p>
  
  <pre><code>telnet  2.dzk.syd.druid.neo.com 2181
  Trying 54.252.183.218...
  Connected to 2.dzk.syd.druid.neo.com.
  Escape character is '^]'.
  </code></pre>
  
  <p>So....rather confused on why kafka will not connect to zookeeper?  </p>
  
  <p>I am using ubuntu 12.04 and kafka 0.7.2</p>
  
  <pre><code>[2013-07-16 04:36:49,915] INFO Client environment:user.home=/root (org.apache.zookeeper.ZooKeeper)
  [2013-07-16 04:36:49,915] INFO Client environment:user.dir=/etc/sv/kafka (org.apache.zookeeper.ZooKeeper)
  [2013-07-16 04:36:49,916] INFO Initiating client connection, connectString=1.dzk.syd.druid.neo.com:2181, 2.dzk.syd.druid.neo.com:2181 sessionTimeout=6000 watcher=org.I0Itec.zkclient.ZkClient@39cc65b1 (org.apache.zookeeper.ZooKeeper)
  [2013-07-16 04:36:49,935] INFO Terminate ZkClient event thread. (org.I0Itec.zkclient.ZkEventThread)
  [2013-07-16 04:36:49,938] FATAL Fatal error during KafkaServerStable startup. Prepare to shutdown (kafka.server.KafkaServerStartable)
  org.I0Itec.zkclient.exception.ZkException: Unable to connect to 1.dzk.syd.druid.neo.com:2181, 2.dzk.syd.druid.neo.com:2181
      at org.I0Itec.zkclient.ZkConnection.connect(ZkConnection.java:66)
      at org.I0Itec.zkclient.ZkClient.connect(ZkClient.java:872)
      at org.I0Itec.zkclient.ZkClient.&lt;init&gt;(ZkClient.java:98)
      at org.I0Itec.zkclient.ZkClient.&lt;init&gt;(ZkClient.java:84)
      at kafka.server.KafkaZooKeeper.startup(KafkaZooKeeper.scala:44)
      at kafka.log.LogManager.&lt;init&gt;(LogManager.scala:93)
      at kafka.server.KafkaServer.startup(KafkaServer.scala:58)
      at kafka.server.KafkaServerStartable.startup(KafkaServerStartable.scala:34)
      at kafka.Kafka$.main(Kafka.scala:47)
      at kafka.Kafka.main(Kafka.scala)
  Caused by: java.net.UnknownHostException:  2.dzk.syd.druid.neo.com: Name or service not known
      at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)
      at java.net.InetAddress$1.lookupAllHostAddr(InetAddress.java:894)
      at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1286)
      at java.net.InetAddress.getAllByName0(InetAddress.java:1239)
      at java.net.InetAddress.getAllByName(InetAddress.java:1155)
      at java.net.InetAddress.getAllByName(InetAddress.java:1091)
      at org.apache.zookeeper.ClientCnxn.&lt;init&gt;(ClientCnxn.java:387)
      at org.apache.zookeeper.ClientCnxn.&lt;init&gt;(ClientCnxn.java:332)
      at org.apache.zookeeper.ZooKeeper.&lt;init&gt;(ZooKeeper.java:383)
      at org.I0Itec.zkclient.ZkConnection.connect(ZkConnection.java:64)
      ... 9 more
  [2013-07-16 04:36:49,942] INFO Shutting down Kafka server (kafka.server.KafkaServer)
  [2013-07-16 04:36:49,943] INFO shutdown scheduler kafka-logcleaner- (kafka.utils.KafkaScheduler)
  [2013-07-16 04:36:49,944] INFO Kafka server shut down completed (kafka.server.KafkaServer)
  </code></pre>