[jira] [Updated] (SPARK-8793) error/warning with pyspark WholeTextFiles.first

["Diana Carroll (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-8793?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Diana Carroll updated SPARK-8793:
---------------------------------
    Attachment: wholefilesbug.txt

> error/warning with pyspark WholeTextFiles.first
> -----------------------------------------------
>
>                 Key: SPARK-8793
>                 URL: https://issues.apache.org/jira/browse/SPARK-8793
>             Project: Spark
>          Issue Type: Bug
>          Components: PySpark
>    Affects Versions: 1.3.0
>            Reporter: Diana Carroll
>            Priority: Minor
>         Attachments: wholefilesbug.txt
>
>
> In Spark 1.3.0 python, calling first() on sc.wholeTextFiles is not working correctly in pyspark.  It works fine in Scala.
> I created a directory with two tiny, simple text files.  
> this works:
> {code}sc.wholeTextFiles("testdata").collect(){code}
> this doesn't:
> {code}sc.wholeTextFiles("testdata").first(){code}
> The main error message is:
> {code}15/07/02 08:01:38 ERROR executor.Executor: Exception in task 0.0 in stage 12.0 (TID 12)
> org.apache.spark.api.python.PythonException: Traceback (most recent call last):
>   File "/usr/lib/spark/python/pyspark/worker.py", line 101, in main
>     process()
>   File "/usr/lib/spark/python/pyspark/worker.py", line 96, in process
>     serializer.dump_stream(func(split_index, iterator), outfile)
>   File "/usr/lib/spark/python/pyspark/serializers.py", line 236, in dump_stream
>     vs = list(itertools.islice(iterator, batch))
>   File "/usr/lib/spark/python/pyspark/rdd.py", line 1220, in takeUpToNumLeft
>     while taken < left:
> ImportError: No module named iter
> {code}
> I will attach the full stack trace to the JIRA.
> I'm using CentOS 6.6 with CDH 5.4.3 (Spark 1.3.0).  Tested in both Python 2.6 and 2.7, same results.



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