[jira] [Commented] (FLINK-1830) java.io.IOException: Network stream corrupted

["Stefan Bunk (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-1830?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14545537#comment-14545537 ] 

Stefan Bunk commented on FLINK-1830:
------------------------------------

This did not happen again, so I cannot provide logs, sorry for that. I am currently working on the 0.9-SNAPSHOT, so maybe that's already fixed.

> java.io.IOException: Network stream corrupted
> ---------------------------------------------
>
>                 Key: FLINK-1830
>                 URL: https://issues.apache.org/jira/browse/FLINK-1830
>             Project: Flink
>          Issue Type: Bug
>    Affects Versions: 0.8.1
>            Reporter: Stefan Bunk
>              Labels: network
>
> When running my Flink job I get the following error:
> {quote}
> 04.Apr. 20:43:12 WARN  DefaultChannelPipeline - An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception.
> java.io.IOException: Network stream corrupted: invalid magicnumber in current envelope header.
>         at org.apache.flink.runtime.io.network.netty.InboundEnvelopeDecoder.decodeEnvelope(InboundEnvelopeDecoder.java:239)
>         at org.apache.flink.runtime.io.network.netty.InboundEnvelopeDecoder.decodeBuffer(InboundEnvelopeDecoder.java:127)
>         at org.apache.flink.runtime.io.network.netty.InboundEnvelopeDecoder.channelRead(InboundEnvelopeDecoder.java:111)
>         at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
>         at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
>         at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:787)
>         at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:125)
>         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$2.run(SingleThreadEventExecutor.java:116)
>         at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:137)
>         at java.lang.Thread.run(Thread.java:745)
> {quote}
> Sometimes the job works, sometimes it fails with the above error.
> When it fails, the job still appears as running, but nothing happens anymore until I cancel it manually. In the logs I can then find the error, often repeated hundreds of times.



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