Thomas Graves created SPARK-21753:
-------------------------------------
Summary: running pi example with pypy on spark fails to serialize
Key: SPARK-21753
URL: https://issues.apache.org/jira/browse/SPARK-21753
Project: Spark
Issue Type: Bug
Components: PySpark
Affects Versions: 2.1.1
Reporter: Thomas Graves
I'm trying to run the pi example
(https://github.com/apache/spark/blob/master/examples/src/main/python/pi.py)
on pyspark using pypy 2.5.1 but everything I've tried results in a
serialization error:
Traceback (most recent call last):
File "/home/tgraves/y-spark-git/python/pyspark/cloudpickle.py", line 147, in
dump
return Pickler.dump(self, obj)
File "//home/tgraves/pypy-my-own-package-name/lib-python/2.7/pickle.py", line
224, in dump
self.save(obj)
File "//home/tgraves/pypy-my-own-package-name/lib-python/2.7/pickle.py", line
286, in save
f(self, obj) # Call unbound method with explicit self
File "//home/tgraves/pypy-my-own-package-name/lib-python/2.7/pickle.py", line
562, in save_tuple
save(element)
File "//home/tgraves/pypy-my-own-package-name/lib-python/2.7/pickle.py", line
286, in save
f(self, obj) # Call unbound method with explicit self
File "/home/tgraves/y-spark-git/python/pyspark/cloudpickle.py", line 254, in
save_function
self.save_function_tuple(obj)
File "/home/tgraves/y-spark-git/python/pyspark/cloudpickle.py", line 291, in
save_function_tuple
save((code, closure, base_globals))
File "//home/tgraves/pypy-my-own-package-name/lib-python/2.7/pickle.py", line
286, in save
f(self, obj) # Call unbound method with explicit self
File "//home/tgraves/pypy-my-own-package-name/lib-python/2.7/pickle.py", line
548, in save_tuple
save(element)
File "//home/tgraves/pypy-my-own-package-name/lib-python/2.7/pickle.py", line
286, in save
f(self, obj) # Call unbound method with explicit self
File "//home/tgraves/pypy-my-own-package-name/lib-python/2.7/pickle.py", line
600, in save_list
self._batch_appends(iter(obj))
File "//home/tgraves/pypy-my-own-package-name/lib-python/2.7/pickle.py", line
633, in _batch_appends
save(x)
File "//home/tgraves/pypy-my-own-package-name/lib-python/2.7/pickle.py", line
286, in save
f(self, obj) # Call unbound method with explicit self
File "/home/tgraves/y-spark-git/python/pyspark/cloudpickle.py", line 254, in
save_function
self.save_function_tuple(obj)
File "/home/tgraves/y-spark-git/python/pyspark/cloudpickle.py", line 291, in
save_function_tuple
save((code, closure, base_globals))
File "//home/tgraves/pypy-my-own-package-name/lib-python/2.7/pickle.py", line
286, in save
f(self, obj) # Call unbound method with explicit self
File "//home/tgraves/pypy-my-own-package-name/lib-python/2.7/pickle.py", line
548, in save_tuple
save(element)
File "//home/tgraves/pypy-my-own-package-name/lib-python/2.7/pickle.py", line
286, in save
f(self, obj) # Call unbound method with explicit self
File "//home/tgraves/pypy-my-own-package-name/lib-python/2.7/pickle.py", line
600, in save_list
self._batch_appends(iter(obj))
File "//home/tgraves/pypy-my-own-package-name/lib-python/2.7/pickle.py", line
636, in _batch_appends
save(tmp[0])
File "//home/tgraves/pypy-my-own-package-name/lib-python/2.7/pickle.py", line
286, in save
f(self, obj) # Call unbound method with explicit self
File "/home/tgraves/y-spark-git/python/pyspark/cloudpickle.py", line 248, in
save_function
self.save_function_tuple(obj)
File "/home/tgraves/y-spark-git/python/pyspark/cloudpickle.py", line 296, in
save_function_tuple
save(f_globals)
File "//home/tgraves/pypy-my-own-package-name/lib-python/2.7/pickle.py", line
286, in save
f(self, obj) # Call unbound method with explicit self
File "//home/tgraves/pypy-my-own-package-name/lib-python/2.7/pickle.py", line
653, in save_dict
self._batch_setitems(obj.iteritems())
File "//home/tgraves/pypy-my-own-package-name/lib-python/2.7/pickle.py", line
690, in _batch_setitems
save(v)
File "//home/tgraves/pypy-my-own-package-name/lib-python/2.7/pickle.py", line
286, in save
f(self, obj) # Call unbound method with explicit self
File "/home/tgraves/y-spark-git/python/pyspark/cloudpickle.py", line 447, in
save_instancemethod
obj=obj)
File "/home/tgraves/y-spark-git/python/pyspark/cloudpickle.py", line 581, in
save_reduce
save(args)
File "//home/tgraves/pypy-my-own-package-name/lib-python/2.7/pickle.py", line
286, in save
f(self, obj) # Call unbound method with explicit self
File "//home/tgraves/pypy-my-own-package-name/lib-python/2.7/pickle.py", line
548, in save_tuple
save(element)
File "//home/tgraves/pypy-my-own-package-name/lib-python/2.7/pickle.py", line
286, in save
f(self, obj) # Call unbound method with explicit self
File "/home/tgraves/y-spark-git/python/pyspark/cloudpickle.py", line 246, in
save_function
if islambda(obj) or obj.__code__.co_filename == '<stdin>' or themodule is
None:
AttributeError: 'builtin-code' object has no attribute 'co_filename'
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/tgraves/y-spark-git/python/pyspark/rdd.py", line 834, in reduce
vals = self.mapPartitions(func).collect()
File "/home/tgraves/y-spark-git/python/pyspark/rdd.py", line 808, in collect
port = self.ctx._jvm.PythonRDD.collectAndServe(self._jrdd.rdd())
File "/home/tgraves/y-spark-git/python/pyspark/rdd.py", line 2440, in _jrdd
self._jrdd_deserializer, profiler)
File "/home/tgraves/y-spark-git/python/pyspark/rdd.py", line 2373, in
_wrap_function
pickled_command, broadcast_vars, env, includes =
_prepare_for_python_RDD(sc, command)
File "/home/tgraves/y-spark-git/python/pyspark/rdd.py", line 2359, in
_prepare_for_python_RDD
pickled_command = ser.dumps(command)
File "/home/tgraves/y-spark-git/python/pyspark/serializers.py", line 460, in
dumps
return cloudpickle.dumps(obj, 2)
File "/home/tgraves/y-spark-git/python/pyspark/cloudpickle.py", line 703, in
dumps
cp.dump(obj)
File "/home/tgraves/y-spark-git/python/pyspark/cloudpickle.py", line 160, in
dump
raise pickle.PicklingError(msg)
It looks like the issue is with serializing random(). If you remove random()
from the function then everything works fine.
I'm just running
PYSPARK_PYTHON=//home/tgraves/pypy-my-own-package-name/bin/pypy ./bin/pyspark
I've tried multiple versions of pypy from 2.5.1 to 5.8.0. I tried the portable
version as well as built pypy from source.
If it works for others perhaps I have a setup issue, any hints on that would be
appreciated.
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