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From Xi Shen <davidshe...@gmail.com>
Subject Re: How to troubleshoot server.TransportChannelHandler Exception
Date Thu, 26 Mar 2015 07:22:42 GMT
ah~hell, I am using Spark 1.2.0, and my job was submitted to use 8
cores...the magic number in the bug.




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Xi Shen
[image: http://]about.me/davidshen
<http://about.me/davidshen?promo=email_sig>
  <http://about.me/davidshen>

On Thu, Mar 26, 2015 at 5:48 PM, Akhil Das <akhil@sigmoidanalytics.com>
wrote:

> Whats your spark version? Not quiet sure, but you could be hitting this
> issue
> https://issues.apache.org/jira/plugins/servlet/mobile#issue/SPARK-4516
> On 26 Mar 2015 11:01, "Xi Shen" <davidshen84@gmail.com> wrote:
>
>> Hi,
>>
>> My environment is Windows 64bit, Spark + YARN. I had a job that takes a
>> long time. It starts well, but it ended with below exception:
>>
>> 15/03/25 12:39:09 WARN server.TransportChannelHandler: Exception in
>> connection from
>> headnode0.xshe3539-hadoop-sydney.q10.internal.cloudapp.net/100.72.68.34:58507
>> java.io.IOException: An existing connection was forcibly closed by the
>> remote host
>> 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:223)
>> at sun.nio.ch.IOUtil.read(IOUtil.java:192)
>> at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:379)
>> at
>> io.netty.buffer.PooledUnsafeDirectByteBuf.setBytes(PooledUnsafeDirectByteBuf.java:311)
>> at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:881)
>> at
>> io.netty.channel.socket.nio.NioSocketChannel.doReadBytes(NioSocketChannel.java:225)
>> at
>> io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:119)
>> at
>> io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511)
>> at
>> io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)
>> at
>> io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382)
>> at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354)
>> at
>> io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116)
>> at java.lang.Thread.run(Thread.java:745)
>> 15/03/25 12:39:09 ERROR executor.CoarseGrainedExecutorBackend: Driver
>> Disassociated [akka.tcp://
>> sparkExecutor@workernode0.xshe3539-hadoop-sydney.q10.internal.cloudapp.net:65469]
>> -> [akka.tcp://
>> sparkDriver@headnode0.xshe3539-hadoop-sydney.q10.internal.cloudapp.net:58467]
>> disassociated! Shutting down.
>> 15/03/25 12:39:09 WARN remote.ReliableDeliverySupervisor: Association
>> with remote system [akka.tcp://
>> sparkDriver@headnode0.xshe3539-hadoop-sydney.q10.internal.cloudapp.net:58467]
>> has failed, address is now gated for [5000] ms. Reason is: [Disassociated].
>>
>> Interestingly, the job is shown as Succeeded in the RM. I checked the
>> application log, it is miles long, and this is the only exception I found.
>> And it is no very useful to help me pin point the problem.
>>
>> Any idea what would be the cause?
>>
>>
>> Thanks,
>>
>>
>> [image: --]
>> Xi Shen
>> [image: http://]about.me/davidshen
>> <http://about.me/davidshen?promo=email_sig>
>>   <http://about.me/davidshen>
>>
>

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