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https://issues.apache.org/jira/browse/SPARK-20882?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16025506#comment-16025506
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Shixiong Zhu commented on SPARK-20882:
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[~cenyuhai] Is it possible to reproduce it and get logs of the shuffle service?
> Executor is waiting for ShuffleBlockFetcherIterator
> ---------------------------------------------------
>
> Key: SPARK-20882
> URL: https://issues.apache.org/jira/browse/SPARK-20882
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 2.1.0, 2.1.1
> Reporter: cen yuhai
> Attachments: executor_jstack, executor_log, screenshot-1.png,
> screenshot-2.png, screenshot-3.png
>
>
> This bug is like https://issues.apache.org/jira/browse/SPARK-19300.
> but I have updated my client netty version to 4.0.43.Final.
> The shuffle service handler is still 4.0.42.Final
> spark.sql.adaptive.enabled is true
> {code}
> "Executor task launch worker for task 4808985" #5373 daemon prio=5 os_prio=0
> tid=0x00007f54ef437000 nid=0x1aed0 waiting on condition [0x00007f53aebfe000]
> java.lang.Thread.State: WAITING (parking)
> at sun.misc.Unsafe.park(Native Method)
> parking to wait for <0x0000000498c249c0> (a
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
> at java.util.concurrent.locks.LockSupport.park(LockSupport.java:189)
> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
> at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
> at
> org.apache.spark.storage.ShuffleBlockFetcherIterator.next(ShuffleBlockFetcherIterator.scala:332)
> at
> org.apache.spark.storage.ShuffleBlockFetcherIterator.next(ShuffleBlockFetcherIterator.scala:58)
> at scala.collection.Iterator$$anon$12.nextCur(Iterator.scala:434)
> at scala.collection.Iterator$$anon$12.hasNext(Iterator.scala:440)
> at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:408)
> at
> org.apache.spark.util.CompletionIterator.hasNext(CompletionIterator.scala:32)
> at
> org.apache.spark.InterruptibleIterator.hasNext(InterruptibleIterator.scala:39)
> at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:408)
> at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:408)
> at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:408)
> at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:408)
> at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:408)
> at
> org.apache.spark.util.collection.ExternalSorter.insertAll(ExternalSorter.scala:199)
> at
> org.apache.spark.shuffle.sort.SortShuffleWriter.write(SortShuffleWriter.scala:63)
> at org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:97)
> at org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:54)
> at org.apache.spark.scheduler.Task.run(Task.scala:114)
> at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:323)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1147)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:622)
> at java.lang.Thread.run(Thread.java:834)
> {code}
> {code}
> 7/05/26 02:01:55 DEBUG ShuffleBlockFetcherIterator: Number of requests in
> flight 3
> 17/05/26 02:01:55 DEBUG ShuffleBlockFetcherIterator: Number of requests in
> flight 2
> 17/05/26 02:01:55 DEBUG ShuffleBlockFetcherIterator: Number of requests in
> flight 1
> 17/05/26 02:01:55 DEBUG ShuffleBlockFetcherIterator: Number of requests in
> flight 1
> 17/05/26 02:01:55 DEBUG ShuffleBlockFetcherIterator: Number of requests in
> flight 1
> 17/05/26 02:02:03 WARN TransportChannelHandler: Exception in connection from
> bigdata-apache-hdp-132.xg01/10.0.132.58:7337
> java.io.IOException: Connection reset by peer
> at sun.nio.ch.FileDispatcherImpl.read0(Native Method)
> at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:39)
> at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223)
> at sun.nio.ch.IOUtil.read(IOUtil.java:192)
> at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:379)
> at
> io.netty.buffer.PooledUnsafeDirectByteBuf.setBytes(PooledUnsafeDirectByteBuf.java:221)
> at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:899)
> at
> io.netty.channel.socket.nio.NioSocketChannel.doReadBytes(NioSocketChannel.java:275)
> at
> io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:119)
> at
> io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:643)
> at
> io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:566)
> at
> io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:480)
> at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:442)
> at
> io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:131)
> at
> io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
> {code}
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