Why does server fail with "java.net.SocketException: invalid argument" upon server's startup? - apache-kafka

Question

Kafka 0.8
I follow the quickstart guide and when I come to the Step 2 to run bin/kafka-server-start.sh config/server.properties I'm facing the exception:
[2013-08-06 09:55:14,603] INFO 0 successfully elected as leader (kafka.server.ZookeeperLeaderElector)
[2013-08-06 09:55:14,657] ERROR Error while electing or becoming leader on broker 0 (kafka.server.ZookeeperLeaderElector)
java.net.SocketException: invalid argument
at sun.nio.ch.Net.connect0(Native Method)
at sun.nio.ch.Net.connect(Net.java:465)
at sun.nio.ch.Net.connect(Net.java:457)
at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:639)
at kafka.network.BlockingChannel.connect(BlockingChannel.scala:57)
at kafka.controller.ControllerChannelManager.kafka$controller$ControllerChannelManager$$addNewBroker(ControllerChannelManager.scala:84)
at kafka.controller.ControllerChannelManager$$anonfun$1.apply(ControllerChannelManager.scala:35)
at kafka.controller.ControllerChannelManager$$anonfun$1.apply(ControllerChannelManager.scala:35)
at scala.collection.immutable.Set$Set1.foreach(Set.scala:81)
at kafka.controller.ControllerChannelManager.<init>(ControllerChannelManager.scala:35)
at kafka.controller.KafkaController.startChannelManager(KafkaController.scala:503)
at kafka.controller.KafkaController.initializeControllerContext(KafkaController.scala:467)
at kafka.controller.KafkaController.onControllerFailover(KafkaController.scala:215)
at kafka.controller.KafkaController$$anonfun$1.apply$mcV$sp(KafkaController.scala:89)
at kafka.server.ZookeeperLeaderElector.elect(ZookeeperLeaderElector.scala:53)
at kafka.server.ZookeeperLeaderElector$LeaderChangeListener.handleDataDeleted(ZookeeperLeaderElector.scala:106)
at org.I0Itec.zkclient.ZkClient$6.run(ZkClient.java:549)
at org.I0Itec.zkclient.ZkEventThread.run(ZkEventThread.java:71)
What could I be doing wrong? Please advise.

Answer 1

It is likely to be either a problem with name resolution, or with leftover settings from 0.7.
If you are migrating from 0.7, see the migration guide.
If you're starting fresh, ensure that there is an accurate entry in /etc/hosts for your hostname.
e.g. given a /etc/hostname file with
yourhostname
and an interface (/sbin/ifconfig) listening with an example IP of 10.181.11.14
/etc/hosts should correctly map that name to the listening interface:
10.181.11.14 yourhostname.yourdomain.com yourhostname someotheralias
You can test it by telnetting to the kafka port and ensuring that there is no timeout:
telnet yourhostname.yourdomain.com 9092
Trying 10.181.11.14...
Connected to yourhostname.yourdomain.com.
Escape character is '^]'.