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https://issues.apache.org/jira/browse/BEAM-7527?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16861354#comment-16861354
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Valentyn Tymofieiev commented on BEAM-7527:
-------------------------------------------
[~markflyhigh] Could you please take a look? Thank you.
> Beam Python integration test suites are flaky: ModuleNotFoundError
> ------------------------------------------------------------------
>
> Key: BEAM-7527
> URL: https://issues.apache.org/jira/browse/BEAM-7527
> Project: Beam
> Issue Type: Bug
> Components: test-failures
> Reporter: Valentyn Tymofieiev
> Assignee: Mark Liu
> Priority: Major
>
> I am seeing several errors in Python SDK Integration test suites, such as
> Dataflow ValidatesRunner and Python PostCommit that fail due to one of the
> autogenerated files not being found.
> For example:
> {noformat}
> /home/jenkins/jenkins-slave/workspace/beam_PostCommit_Py_VR_Dataflow/src/sdks/python/apache_beam/__init__.py:84:
> UserWarning: Running the Apache Beam SDK on Python 3 is not yet fully
> supported. You may encounter buggy behavior or missing features.
> 'Running the Apache Beam SDK on Python 3 is not yet fully supported. '
> Failure: ModuleNotFoundError (No module named 'beam_runner_api_pb2') ...
> ERROR
> ======================================================================
> ERROR: Failure: ModuleNotFoundError (No module named 'beam_runner_api_pb2')
> ----------------------------------------------------------------------
> Traceback (most recent call last):
> File
> "/home/jenkins/jenkins-slave/workspace/beam_PostCommit_Py_VR_Dataflow/src/build/gradleenv/-1734967053/lib/python3.6/site-packages/nose/failure.py",
> line 39, in runTest
> raise self.exc_val.with_traceback(self.tb)
> File
> "/home/jenkins/jenkins-slave/workspace/beam_PostCommit_Py_VR_Dataflow/src/build/gradleenv/-1734967053/lib/python3.6/site-packages/nose/loader.py",
> line 418, in loadTestsFromName
> addr.filename, addr.module)
> File
> "/home/jenkins/jenkins-slave/workspace/beam_PostCommit_Py_VR_Dataflow/src/build/gradleenv/-1734967053/lib/python3.6/site-packages/nose/importer.py",
> line 47, in importFromPath
> return self.importFromDir(dir_path, fqname)
> File
> "/home/jenkins/jenkins-slave/workspace/beam_PostCommit_Py_VR_Dataflow/src/build/gradleenv/-1734967053/lib/python3.6/site-packages/nose/importer.py",
> line 94, in importFromDir
> mod = load_module(part_fqname, fh, filename, desc)
> File
> "/home/jenkins/jenkins-slave/workspace/beam_PostCommit_Py_VR_Dataflow/src/build/gradleenv/-1734967053/lib/python3.6/imp.py",
> line 245, in load_module
> return load_package(name, filename)
> File
> "/home/jenkins/jenkins-slave/workspace/beam_PostCommit_Py_VR_Dataflow/src/build/gradleenv/-1734967053/lib/python3.6/imp.py",
> line 217, in load_package
> return _load(spec)
> File "<frozen importlib._bootstrap>", line 684, in _load
> File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
> File "<frozen importlib._bootstrap_external>", line 678, in exec_module
> File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
> File
> "/home/jenkins/jenkins-slave/workspace/beam_PostCommit_Py_VR_Dataflow/src/sdks/python/apache_beam/__init__.py",
> line 97, in <module>
> from apache_beam import coders
> File "/home/jenkins/jenkins-slave/workspace/beam_Pos
> tCommit_Py_VR_Dataflow/src/sdks/python/apache_beam/coders/__init__.py", line
> 19, in <module>
> from apache_beam.coders.coders import *
> File
> "/home/jenkins/jenkins-slave/workspace/beam_PostCommit_Py_VR_Dataflow/src/sdks/python/apache_beam/coders/coders.py",
> line 32, in <module>
> from apache_beam.coders import coder_impl
> File
> "/home/jenkins/jenkins-slave/workspace/beam_PostCommit_Py_VR_Dataflow/src/sdks/python/apache_beam/coders/coder_impl.py",
> line 44, in <module>
> from apache_beam.utils import windowed_value
> File
> "/home/jenkins/jenkins-slave/workspace/beam_PostCommit_Py_VR_Dataflow/src/sdks/python/apache_beam/utils/windowed_value.py",
> line 34, in <module>
> from apache_beam.utils.timestamp import MAX_TIMESTAMP
> File
> "/home/jenkins/jenkins-slave/workspace/beam_PostCommit_Py_VR_Dataflow/src/sdks/python/apache_beam/utils/timestamp.py",
> line 34, in <module>
> from apache_beam.portability import common_urns
> File
> "/home/jenkins/jenkins-slave/workspace/beam_PostCommit_Py_VR_Dataflow/src/sdks/python/apache_beam/portability/common_urns.py",
> line 25, in <module>
> from apache_beam.portability.api import metrics_pb2
> File
> "/home/jenkins/jenkins-slave/workspace/beam_PostCommit_Py_VR_Dataflow/src/sdks/python/apache_beam/portability/api/metrics_pb2.py",
> line 16, in <module>
> import beam_runner_api_pb2 as beam__runner__api__pb2
> ModuleNotFoundError: No module named 'beam_runner_api_pb2'
> {noformat}
> {noformat}
> /home/jenkins/jenkins-slave/workspace/beam_PostCommit_Py_VR_Dataflow/src/sdks/python/apache_beam/__init__.py:84:
> UserWarning: Running the Apache Beam SDK on Python 3 is not yet fully
> supported. You may encounter buggy behavior or missing features.
> 'Running the Apache Beam SDK on Python 3 is not yet fully supported. '
> Failure: ModuleNotFoundError (No module named 'endpoints_pb2') ...
> ERROR
> ======================================================================
> ERROR: Failure: ModuleNotFoundError (No module named 'endpoints_pb2')
> ----------------------------------------------------------------------
> Traceback (most recent call last):
> File
> "/home/jenkins/jenkins-slave/workspace/beam_PostCommit_Py_VR_Dataflow/src/build/gradleenv/-1734967053/lib/python3.6/site-packages/nose/failure.py",
> line 39, in runTest
> raise self.exc_val.with_traceback(self.tb)
> File
> "/home/jenkins/jenkins-slave/workspace/beam_PostCommit_Py_VR_Dataflow/src/build/gradleenv/-1734967053/lib/python3.6/site-packages/nose/loader.py",
> line 418, in loadTestsFromName
> addr.filename, addr.module)
> File
> "/home/jenkins/jenkins-slave/workspace/beam_PostCommit_Py_VR_Dataflow/src/build/gradleenv/-1734967053/lib/python3.6/site-packages/nose/importer.py",
> line 47, in importFromPath
> return self.importFromDir(dir_path, fqname)
> File
> "/home/jenkins/jenkins-slave/workspace/beam_PostCommit_Py_VR_Dataflow/src/build/gradleenv/-1734967053/lib/python3.6/site-packages/nose/importer.py",
> line 94, in importFromDir
> mod = load_module(part_fqname, fh, filename, desc)
> File
> "/home/jenkins/jenkins-slave/workspace/beam_PostCommit_Py_VR_Dataflow/src/build/gradleenv/-1734967053/lib/python3.6/imp.py",
> line 245, in load_module
> return load_package(name, filename)
> File
> "/home/jenkins/jenkins-slave/workspace/beam_PostCommit_Py_VR_Dataflow/src/build/gradleenv/-1734967053/lib/python3.6/imp.py",
> line 217, in load_package
> return _load(spec)
> File "<frozen importlib._bootstrap>", line 684, in _load
> File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
> File "<frozen importlib._bootstrap_external>", line 678, in exec_module
> File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
> File
> "/home/jenkins/jenkins-slave/workspace/beam_PostCommit_Py_VR_Dataflow/src/sdks/python/apache_beam/__init__.py",
> line 97, in <module>
> from apache_beam import coders
> File "/home/jenkins/jenkins-slave/workspace/beam_PostCommi
> t_Py_VR_Dataflow/src/sdks/python/apache_beam/coders/__init__.py", line 19, in
> <module>
> from apache_beam.coders.coders import *
> File
> "/home/jenkins/jenkins-slave/workspace/beam_PostCommit_Py_VR_Dataflow/src/sdks/python/apache_beam/coders/coders.py",
> line 32, in <module>
> from apache_beam.coders import coder_impl
> File
> "/home/jenkins/jenkins-slave/workspace/beam_PostCommit_Py_VR_Dataflow/src/sdks/python/apache_beam/coders/coder_impl.py",
> line 44, in <module>
> from apache_beam.utils import windowed_value
> File
> "/home/jenkins/jenkins-slave/workspace/beam_PostCommit_Py_VR_Dataflow/src/sdks/python/apache_beam/utils/windowed_value.py",
> line 34, in <module>
> from apache_beam.utils.timestamp import MAX_TIMESTAMP
> File
> "/home/jenkins/jenkins-slave/workspace/beam_PostCommit_Py_VR_Dataflow/src/sdks/python/apache_beam/utils/timestamp.py",
> line 34, in <module>
> from apache_beam.portability import common_urns
> File
> "/home/jenkins/jenkins-slave/workspace/beam_PostCommit_Py_VR_Dataflow/src/sdks/python/apache_beam/portability/common_urns.py",
> line 24, in <module>
> from apache_beam.portability.api import beam_runner_api_pb2
> File
> "/home/jenkins/jenkins-slave/workspace/beam_PostCommit_Py_VR_Dataflow/src/sdks/python/apache_beam/portability/api/beam_runner_api_pb2.py",
> line 16, in <module>
> import endpoints_pb2 as endpoints__pb2
> ModuleNotFoundError: No module named 'endpoints_pb2'
> {noformat}
> The rootcause is not clear, I suspect that it may be related to the way we
> parallelize execution of Python test suites for 2.7, 3.5, 3.6, 3.7.
> cc: [~altay] [~markflyhigh] [~Juta] [~frederik]
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