elasticsearch의java.io.IOException: 원격 호스트가 기존 연결을 강제로 닫습니다.

[WARN ][transport.netty          ] [Vishanti] exception caught on transport layer [[id: 0x28e0603d,/127.0.0.1:56693 =>/127.0.0.1:9300]], closing connection
java.io.IOException: 원격 호스트가 기존 연결을 강제로 닫습니다.
        at sun.nio.ch.SocketDispatcher.read0(Native Method)
        at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:43)
        at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:225)
        at sun.nio.ch.IOUtil.read(IOUtil.java:193)
        at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:359)
        at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:64)
        at org.jboss.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:108)
        at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:337)
        at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
        at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
        at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
        at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:722)

 socket ， ， ， IO 

 ：1. elasticSearch 

  2. ...