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From "Yu Yang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (KAFKA-6544) kafka process should exit when it encounters "java.io.IOException: Too many open files"
Date Thu, 08 Feb 2018 18:57:00 GMT
Yu Yang created KAFKA-6544:
------------------------------

             Summary: kafka process should exit when it encounters "java.io.IOException: Too
many open files"  
                 Key: KAFKA-6544
                 URL: https://issues.apache.org/jira/browse/KAFKA-6544
             Project: Kafka
          Issue Type: Bug
          Components: admin, network
    Affects Versions: 0.10.2.1
            Reporter: Yu Yang


Our kafka cluster encountered a few disk/xfs failures in the cloud vm instances. When a disk/xfs
failure happens, kafka process did not exit gracefully. Instead, it run into  "<defunct>"
status, with port 9092 still be reachable.  when failures like this happens, kafka should
shutdown all threads and exit. The following is the kafka logs when the failure happens:

{code:java}
[2018-02-08 12:52:31,764] ERROR Error while accepting connection (kafka.network.Acceptor)
java.io.IOException: Too many open files
        at sun.nio.ch.ServerSocketChannelImpl.accept0(Native Method)
        at sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:422)
        at sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:250)
        at kafka.network.Acceptor.accept(SocketServer.scala:340)
        at kafka.network.Acceptor.run(SocketServer.scala:283)
        at java.lang.Thread.run(Thread.java:748)
[2018-02-08 12:52:31,772] ERROR Error while accepting connection (kafka.network.Acceptor)
java.io.IOException: Too many open files
        at sun.nio.ch.ServerSocketChannelImpl.accept0(Native Method)
        at sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:422)
        at sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:250)
        at kafka.network.Acceptor.accept(SocketServer.scala:340)
        at kafka.network.Acceptor.run(SocketServer.scala:283)
        at java.lang.Thread.run(Thread.java:748)
[2018-02-08 12:52:31,772] ERROR Error while accepting connection (kafka.network.Acceptor)
java.io.IOException: Too many open files
        at sun.nio.ch.ServerSocketChannelImpl.accept0(Native Method)
        at sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:422)
        at sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:250)
        at kafka.network.Acceptor.accept(SocketServer.scala:340)
        at kafka.network.Acceptor.run(SocketServer.scala:283)
        at java.lang.Thread.run(Thread.java:748)
 {code}



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