Zookeeper “java.net.BindException: Address already in use”

Generally we receive this issue when we trying zookeeper start again with same port while one instance of zookeeper is already running . For resolving issue follow below steps:

Exception :

[2017-05-08 13:54:00,409] ERROR Unexpected exception, exiting abnormally (org.apache.zookeeper.server.ZooKeeperServerMain)
java.net.BindException: Address already in use
        at sun.nio.ch.Net.bind0(Native Method)
        at sun.nio.ch.Net.bind(Net.java:433)
        at sun.nio.ch.Net.bind(Net.java:425)
        at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223)
        at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
        at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:67)
        at org.apache.zookeeper.server.NIOServerCnxnFactory.configure(NIOServerCnxnFactory.java:95)
        at org.apache.zookeeper.server.ZooKeeperServerMain.runFromConfig(ZooKeeperServerMain.java:111)
        at org.apache.zookeeper.server.ZooKeeperServerMain.initializeAndRun(ZooKeeperServerMain.java:86)
        at org.apache.zookeeper.server.ZooKeeperServerMain.main(ZooKeeperServerMain.java:52)
        at org.apache.zookeeper.server.quorum.QuorumPeerMain.initializeAndRun(QuorumPeerMain.java:116)
        at org.apache.zookeeper.server.quorum.QuorumPeerMain.main(QuorumPeerMain.java:78)

Follow below steps:

  • To check zookeeper running instance and get process Id run below command
ps -ef|grep zookeeper
  • Kill this process if you want to start zookeeper again
kill -9 zookeeperProcessId
  • Restart zookeeper of you have kill zookeeper process.


Issues Solution

For more Kafka issue solution follow link Kafka and Zookeeper Issues.


Integrate Filebeat, Kafka, Logstash, Elasticsearch and Kibana

About Saurabh Gupta

My Name is Saurabh Gupta, I have approx. 10 Year of experience in Information Technology World manly in Java/J2EE. During this time I have worked with multiple organization with different client, so many technology, frameworks etc.
This entry was posted in Kafka, Zookeeper and tagged . Bookmark the permalink.