[jira] [Created] (SPARK-10544) Serialization of Python namedtuples in functions / closures is broken

["Josh Rosen (JIRA)" <ji...@apache.org>]

Josh Rosen created SPARK-10544:
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             Summary: Serialization of Python namedtuples in functions / closures is broken
                 Key: SPARK-10544
                 URL: https://issues.apache.org/jira/browse/SPARK-10544
             Project: Spark
          Issue Type: Bug
          Components: PySpark
    Affects Versions: 1.5.0
            Reporter: Josh Rosen
            Priority: Blocker
             Fix For: 1.5.1


The following example works on Spark 1.4.1 but not in 1.5:

{code}
from collections import namedtuple
Person = namedtuple("Person", "id firstName lastName")
rdd = sc.parallelize([1]).map(lambda x: Person(1, "Jon", "Doe"))
rdd.count()
{code}

In 1.5, this gives an "AttributeError: 'builtin_function_or_method' object has no attribute '__code__'" error.

It looks like PySpark has unit tests for serializing individual namedtuples with cloudpickle.dumps and for serializing RDDs of namedtuples, but I don't think that we have any tests for namedtuples in closures.



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