Oliver Mannion created SPARK-36476:
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Summary: cloudpickle: ValueError: Cell is empty
Key: SPARK-36476
URL: https://issues.apache.org/jira/browse/SPARK-36476
Project: Spark
Issue Type: Bug
Components: PySpark
Affects Versions: 3.1.2
Reporter: Oliver Mannion
{code:java}
File
"/Users/tekumara/code/awesome-spark-app/.venv/lib/python3.7/site-packages/pyspark/serializers.py",
line 437, in dumps
return cloudpickle.dumps(obj, pickle_protocol)
File
"/Users/tekumara/code/awesome-spark-app/.venv/lib/python3.7/site-packages/pyspark/cloudpickle/cloudpickle_fast.py",
line 101, in dumps
cp.dump(obj)
File
"/Users/tekumara/code/awesome-spark-app/.venv/lib/python3.7/site-packages/pyspark/cloudpickle/cloudpickle_fast.py",
line 540, in dump
return Pickler.dump(self, obj)
File "/Users/tekumara/.pyenv/versions/3.7.9/lib/python3.7/pickle.py", line
437, in dump
self.save(obj)
File "/Users/tekumara/.pyenv/versions/3.7.9/lib/python3.7/pickle.py", line
504, in save
f(self, obj) # Call unbound method with explicit self
File "/Users/tekumara/.pyenv/versions/3.7.9/lib/python3.7/pickle.py", line
789, in save_tuple
save(element)
File "/Users/tekumara/.pyenv/versions/3.7.9/lib/python3.7/pickle.py", line
504, in save
f(self, obj) # Call unbound method with explicit self
File
"/Users/tekumara/code/awesome-spark-app/.venv/lib/python3.7/site-packages/pyspark/cloudpickle/cloudpickle_fast.py",
line 722, in save_function
*self._dynamic_function_reduce(obj), obj=obj
File
"/Users/tekumara/code/awesome-spark-app/.venv/lib/python3.7/site-packages/pyspark/cloudpickle/cloudpickle_fast.py",
line 659, in _save_reduce_pickle5
dictitems=dictitems, obj=obj
File "/Users/tekumara/.pyenv/versions/3.7.9/lib/python3.7/pickle.py", line
638, in save_reduce
save(args)
File "/Users/tekumara/.pyenv/versions/3.7.9/lib/python3.7/pickle.py", line
504, in save
f(self, obj) # Call unbound method with explicit self
File "/Users/tekumara/.pyenv/versions/3.7.9/lib/python3.7/pickle.py", line
789, in save_tuple
save(element)
File "/Users/tekumara/.pyenv/versions/3.7.9/lib/python3.7/pickle.py", line
504, in save
f(self, obj) # Call unbound method with explicit self
File "/Users/tekumara/.pyenv/versions/3.7.9/lib/python3.7/pickle.py", line
774, in save_tuple
save(element)
File "/Users/tekumara/.pyenv/versions/3.7.9/lib/python3.7/pickle.py", line
504, in save
f(self, obj) # Call unbound method with explicit self
File
"/Users/tekumara/code/awesome-spark-app/.venv/lib/python3.7/site-packages/dill/_dill.py",
line 1226, in save_cell
f = obj.cell_contents
ValueError: Cell is empty
{code}
Doesn't occur in Spark 3.0.0, so possible introduced which cloudpickle was
upgraded to 1.5.0 (see https://issues.apache.org/jira/browse/SPARK-32094)
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