[jira] [Created] (SPARK-22172) Worker hangs when the external shuffle service port is already in use

["Devaraj K (JIRA)" <ji...@apache.org>]

Devaraj K created SPARK-22172:
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             Summary: Worker hangs when the external shuffle service port is already in use
                 Key: SPARK-22172
                 URL: https://issues.apache.org/jira/browse/SPARK-22172
             Project: Spark
          Issue Type: Bug
          Components: Spark Core
    Affects Versions: 2.2.0
            Reporter: Devaraj K


When the external shuffle service port is already in use, Worker throws the below BindException and hangs forever, I think the exception should be handled gracefully. 

{code:xml}
17/09/29 11:16:30 INFO ExternalShuffleService: Starting shuffle service on port 7337 (auth enabled = false)
17/09/29 11:16:30 ERROR Inbox: Ignoring error
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 io.netty.channel.socket.nio.NioServerSocketChannel.doBind(NioServerSocketChannel.java:128)
        at io.netty.channel.AbstractChannel$AbstractUnsafe.bind(AbstractChannel.java:500)
        at io.netty.channel.DefaultChannelPipeline$HeadContext.bind(DefaultChannelPipeline.java:1218)
        at io.netty.channel.AbstractChannelHandlerContext.invokeBind(AbstractChannelHandlerContext.java:495)
        at io.netty.channel.AbstractChannelHandlerContext.bind(AbstractChannelHandlerContext.java:480)
        at io.netty.channel.DefaultChannelPipeline.bind(DefaultChannelPipeline.java:965)
        at io.netty.channel.AbstractChannel.bind(AbstractChannel.java:209)
        at io.netty.bootstrap.AbstractBootstrap$2.run(AbstractBootstrap.java:355)
        at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:399)

{code}



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