[jira] [Updated] (SPARK-8795) pySpark wholeTextFiles error when mapping string

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

     [ https://issues.apache.org/jira/browse/SPARK-8795?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Diana Carroll updated SPARK-8795:
---------------------------------
    Attachment: wholefilesbug.txt

> pySpark wholeTextFiles error when mapping string
> ------------------------------------------------
>
>                 Key: SPARK-8795
>                 URL: https://issues.apache.org/jira/browse/SPARK-8795
>             Project: Spark
>          Issue Type: Bug
>          Components: PySpark
>         Environment: CentOS 6.6, Python 2.7, CDH 5.4.1
>            Reporter: Diana Carroll
>         Attachments: wholefilesbug.txt
>
>
> I created a test directory with two tiny text files.
> This call works:
> {code}sc.wholeTextFiles("testdata").map(lambda (fname,x): len(x)).collect(){code}
> This call does not:
> {code}sc.wholeTextFiles("testdata").map(lambda (fname,x): x.islower()).collect(){code}
> In fact, any attempt to call any string methods on X, or pass X to any function requiring a string, fail the same way.
> The main error is
> {code}  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 "<ipython-input-107-5192d18d0e4c>", line 1, in <lambda>
> TypeError: 'bool' object is not callable
> {code}
> Will attach full log.



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