Diana Carroll created SPARK-8795:
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Summary: 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
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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