[jira] [Assigned] (BEAM-8837) PCollectionVisualizationTest: possible bug

["Udi Meiri (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/BEAM-8837?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Udi Meiri reassigned BEAM-8837:
-------------------------------

    Assignee: Ning Kang

> PCollectionVisualizationTest: possible bug
> ------------------------------------------
>
>                 Key: BEAM-8837
>                 URL: https://issues.apache.org/jira/browse/BEAM-8837
>             Project: Beam
>          Issue Type: Improvement
>          Components: sdk-py-core
>            Reporter: Udi Meiri
>            Assignee: Ning Kang
>            Priority: Major
>
> This seems like a bug, even though the test passes:
> {code}
> test_display_plain_text_when_kernel_has_no_frontend (apache_beam.runners.interactive.display.pcoll_visualization_test.PCollectionVisualizationTest) ... Exception in thread Thread-4405:
> Traceback (most recent call last):
>   File "/usr/lib/python3.7/threading.py", line 926, in _bootstrap_inner
>     self.run()
>   File "/usr/local/google/home/ehudm/src/beam/sdks/python/test-suites/tox/py37/build/srcs/sdks/python/.eggs/timeloop-1.0.2-py3.7.egg/timeloop/job.py", line 19, in run
>     self.execute(*self.args, **self.kwargs)
>   File "/usr/local/google/home/ehudm/src/beam/sdks/python/test-suites/tox/py37/build/srcs/sdks/python/apache_beam/runners/interactive/display/pcoll_visualization.py", line 132, in continuous_update_display
>     updated_pv.display_facets(updating_pv=pv)
>   File "/usr/local/google/home/ehudm/src/beam/sdks/python/test-suites/tox/py37/build/srcs/sdks/python/apache_beam/runners/interactive/display/pcoll_visualization.py", line 209, in display_facets
>     data = self._to_dataframe()
>   File "/usr/local/google/home/ehudm/src/beam/sdks/python/test-suites/tox/py37/build/srcs/sdks/python/apache_beam/runners/interactive/display/pcoll_visualization.py", line 278, in _to_dataframe
>     for el in self._to_element_list():
>   File "/usr/local/google/home/ehudm/src/beam/sdks/python/test-suites/tox/py37/build/srcs/sdks/python/apache_beam/runners/interactive/display/pcoll_visualization.py", line 266, in _to_element_list
>     if ie.current_env().cache_manager().exists('full', self._cache_key):
> AttributeError: 'NoneType' object has no attribute 'exists'
> ok
> {code}



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