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https://issues.apache.org/jira/browse/SPARK-17300?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15853630#comment-15853630
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DjvuLee commented on SPARK-17300:
---------------------------------
[~rdblue] Is there any fix for this issue later?
> ClosedChannelException caused by missing block manager when speculative tasks
> are killed
> ----------------------------------------------------------------------------------------
>
> Key: SPARK-17300
> URL: https://issues.apache.org/jira/browse/SPARK-17300
> Project: Spark
> Issue Type: Bug
> Reporter: Ryan Blue
>
> We recently backported SPARK-10530 to our Spark build, which kills
> unnecessary duplicate/speculative tasks when one completes (either a
> speculative task or the original). In large jobs with 500+ executors, this
> caused some executors to die and resulted in the same error that was fixed by
> SPARK-15262: ClosedChannelException when trying to connect to the block
> manager on affected hosts.
> {code}
> java.nio.channels.ClosedChannelException
> at
> org.apache.spark.network.client.TransportClient$3.operationComplete(TransportClient.java:239)
> at
> org.apache.spark.network.client.TransportClient$3.operationComplete(TransportClient.java:226)
> at
> io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:680)
> at
> io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:567)
> at
> io.netty.util.concurrent.DefaultPromise.tryFailure(DefaultPromise.java:424)
> at
> io.netty.channel.AbstractChannel$AbstractUnsafe.safeSetFailure(AbstractChannel.java:801)
> at
> io.netty.channel.AbstractChannel$AbstractUnsafe.write(AbstractChannel.java:699)
> at
> io.netty.channel.DefaultChannelPipeline$HeadContext.write(DefaultChannelPipeline.java:1122)
> at
> io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:633)
> at
> io.netty.channel.AbstractChannelHandlerContext.access$1900(AbstractChannelHandlerContext.java:32)
> at
> io.netty.channel.AbstractChannelHandlerContext$AbstractWriteTask.write(AbstractChannelHandlerContext.java:908)
> at
> io.netty.channel.AbstractChannelHandlerContext$WriteAndFlushTask.write(AbstractChannelHandlerContext.java:960)
> at
> io.netty.channel.AbstractChannelHandlerContext$AbstractWriteTask.run(AbstractChannelHandlerContext.java:893)
> at
> io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:357)
> at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:357)
> at
> io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: java.nio.channels.ClosedChannelException
> {code}
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