GitHub user zsxwing opened a pull request:
https://github.com/apache/spark/pull/11535
[SPARK-13697][PySpark]Fix the missing module name of
TransformFunctionSerializer.loads
## What changes were proposed in this pull request?
Set the function's module name to `__main__` if it's missing in
`TransformFunctionSerializer.loads`.
## How was this patch tested?
Manually test in the shell.
Before this patch:
```
>>> from pyspark.streaming import StreamingContext
>>> from pyspark.streaming.util import TransformFunction
>>> ssc = StreamingContext(sc, 1)
>>> func = TransformFunction(sc, lambda x: x, sc.serializer)
>>> func.rdd_wrapper(lambda x: x)
TransformFunction(<function <lambda> at 0x106ac8b18>)
>>> bytes =
bytearray(ssc._transformerSerializer.serializer.dumps((func.func,
func.rdd_wrap_func, func.deserializers)))
>>> func2 = ssc._transformerSerializer.loads(bytes)
>>> print(func2.func.__module__)
None
>>> print(func2.rdd_wrap_func.__module__)
None
>>>
```
After this patch:
```
>>> from pyspark.streaming import StreamingContext
>>> from pyspark.streaming.util import TransformFunction
>>> ssc = StreamingContext(sc, 1)
>>> func = TransformFunction(sc, lambda x: x, sc.serializer)
>>> func.rdd_wrapper(lambda x: x)
TransformFunction(<function <lambda> at 0x108bf1b90>)
>>> bytes =
bytearray(ssc._transformerSerializer.serializer.dumps((func.func,
func.rdd_wrap_func, func.deserializers)))
>>> func2 = ssc._transformerSerializer.loads(bytes)
>>> print(func2.func.__module__)
__main__
>>> print(func2.rdd_wrap_func.__module__)
__main__
>>>
```
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/zsxwing/spark loads-module
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/11535.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #11535
----
commit c4e35ff068e269935ae96e5ab25b4ae94cc02b0b
Author: Shixiong Zhu <[email protected]>
Date: 2016-03-05T08:14:24Z
Fix the missing module name of TransformFunctionSerializer.loads
----
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