问题描述
我有一个运行在Yarn上的Spark(1.4.1)应用程序，该应用程序失败，并显示以下执行程序日志条目:
I have a Spark (1.4.1) application, running on Yarn, that fails with the following executor log entry:
16/07/21 23:09:08 ERROR executor.CoarseGrainedExecutorBackend: Driver 9.4.136.20:55995 disassociated! Shutting down.
16/07/21 23:09:08 ERROR storage.DiskBlockObjectWriter: Uncaught exception while reverting partial writes to file /dfs1/hadoop/yarn/local/usercache/mitchus/appcache/application_1465987751317_1172/blockmgr-f367f43b-f4c8-4faf-a829-530da30fb040/1c/temp_shuffle_581adb36-1561-4db8-a556-c4ac0e6400ed
java.io.FileNotFoundException: /dfs1/hadoop/yarn/local/usercache/mitchus/appcache/application_1465987751317_1172/blockmgr-f367f43b-f4c8-4faf-a829-530da30fb040/1c/temp_shuffle_581adb36-1561-4db8-a556-c4ac0e6400ed (No such file or directory)
at java.io.FileOutputStream.open0(Native Method)
at java.io.FileOutputStream.open(FileOutputStream.java:270)
at java.io.FileOutputStream.<init>(FileOutputStream.java:213)
at org.apache.spark.storage.DiskBlockObjectWriter.revertPartialWritesAndClose(BlockObjectWriter.scala:189)
at org.apache.spark.util.collection.ExternalSorter.spillToMergeableFile(ExternalSorter.scala:328)
at org.apache.spark.util.collection.ExternalSorter.spill(ExternalSorter.scala:257)
at org.apache.spark.util.collection.ExternalSorter.spill(ExternalSorter.scala:95)
at org.apache.spark.util.collection.Spillable$class.maybeSpill(Spillable.scala:83)
at org.apache.spark.util.collection.ExternalSorter.maybeSpill(ExternalSorter.scala:95)
at org.apache.spark.util.collection.ExternalSorter.maybeSpillCollection(ExternalSorter.scala:240)
at org.apache.spark.util.collection.ExternalSorter.insertAll(ExternalSorter.scala:220)
at org.apache.spark.shuffle.sort.SortShuffleWriter.write(SortShuffleWriter.scala:62)
at org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:70)
at org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:41)
at org.apache.spark.scheduler.Task.run(Task.scala:70)
at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:213)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
关于可能出了什么问题的任何线索吗?
Any clues as to what might have gone wrong?
推荐答案
由临时随机播放文件引起的原因已删除.原因很多，我遇到的一个原因是另一位执行人被毛线杀死.在执行者被杀死之后，将向其他执行者发送一个SHUT_DOWN信号，然后ShutdownHookManager将删除已注册到ShutdownHookManager的所有临时文件.这就是为什么您看到错误.因此，您可能需要检查是否有任何名为log的ShutdownHookManager.
The reason caused by temp shuffle file is deleted. There are many reasons, for one which I met is because the other executor was killed by Yarn. After the executor killed, a SHUT_DOWN signal will be sent to other executors, then the ShutdownHookManager will delete all the temp files which have registered to ShutdownHookManager. That's why you see the error. So you maybe need to check whether there are any ShutdownHookManager called log.
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