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https://issues.apache.org/jira/browse/PIG-5181?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15906850#comment-15906850
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liyunzhang_intel commented on PIG-5181:
---------------------------------------

[~nkollar]: Yes you can create a temp folder to copy files there to avoid there 
is already a same file when we trigger this kind of case.


> JobManagement_3 is failing with spark exec type
> -----------------------------------------------
>
>                 Key: PIG-5181
>                 URL: https://issues.apache.org/jira/browse/PIG-5181
>             Project: Pig
>          Issue Type: Sub-task
>          Components: spark
>            Reporter: Nandor Kollar
>            Assignee: Nandor Kollar
>             Fix For: spark-branch
>
>         Attachments: PIG-5181_1.patch
>
>
> Task failed on executor node:
> {code}
> java.lang.RuntimeException: Error while processing 'perl PigStreaming.pl - - 
> nameMap 
> (stdin-org.apache.pig.builtin.PigStreaming/stdout-org.apache.pig.builtin.PigStreaming)'
>  failed with exit status: 2
>         at 
> org.apache.pig.backend.hadoop.executionengine.spark.converter.OutputConsumerIterator.readNext(OutputConsumerIterator.java:85)
>         at 
> org.apache.pig.backend.hadoop.executionengine.spark.converter.OutputConsumerIterator.hasNext(OutputConsumerIterator.java:96)
>         at 
> scala.collection.convert.Wrappers$JIteratorWrapper.hasNext(Wrappers.scala:41)
>         at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:327)
>         at 
> scala.collection.convert.Wrappers$IteratorWrapper.hasNext(Wrappers.scala:29)
>         at 
> org.apache.pig.backend.hadoop.executionengine.spark.converter.OutputConsumerIterator.readNext(OutputConsumerIterator.java:57)
>         at 
> org.apache.pig.backend.hadoop.executionengine.spark.converter.OutputConsumerIterator.hasNext(OutputConsumerIterator.java:96)
>         at 
> scala.collection.convert.Wrappers$JIteratorWrapper.hasNext(Wrappers.scala:41)
>         at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:327)
>         at 
> org.apache.spark.util.collection.ExternalSorter.insertAll(ExternalSorter.scala:192)
>         at 
> org.apache.spark.shuffle.sort.SortShuffleWriter.write(SortShuffleWriter.scala:64)
>         at 
> org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:73)
>         at 
> org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:41)
>         at org.apache.spark.scheduler.Task.run(Task.scala:89)
>         at 
> org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:242)
>         at 
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>         at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>         at java.lang.Thread.run(Thread.java:745)
> {code}
> It seems that in SparkLauncher the cached file is copied from the file system 
> to a temporary file (which case is the original file name + some random 
> string)
> {code}
> File tmpFile = File.createTempFile(fileName, ".tmp");
> {code}
> and this file is added to SparkContext. It is added with the name of the temp 
> file. This is a problem, since this cached file can't be used with the 
> original name, like in JobManagement_3:
> {code}
> define CMD `perl PigStreaming.pl - - nameMap` 
> ship(':SCRIPTHOMEPATH:/PigStreaming.pl') 
> cache(':INPATH:/nameMap/part-00000#nameMap');
> {code}



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