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https://issues.apache.org/jira/browse/BEAM-8977?focusedWorklogId=361089&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-361089
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ASF GitHub Bot logged work on BEAM-8977:
----------------------------------------
Author: ASF GitHub Bot
Created on: 17/Dec/19 19:54
Start Date: 17/Dec/19 19:54
Worklog Time Spent: 10m
Work Description: KevinGG commented on issue #10404: [BEAM-8977] Resolve
test flakiness
URL: https://github.com/apache/beam/pull/10404#issuecomment-566723183
R: @tvalentyn
PTAL, thanks!
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Issue Time Tracking
-------------------
Worklog Id: (was: 361089)
Time Spent: 20m (was: 10m)
> apache_beam.runners.interactive.display.pcoll_visualization_test.PCollectionVisualizationTest.test_dynamic_plotting_update_same_display
> is flaky
> ------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: BEAM-8977
> URL: https://issues.apache.org/jira/browse/BEAM-8977
> Project: Beam
> Issue Type: Bug
> Components: test-failures
> Reporter: Valentyn Tymofieiev
> Assignee: Ning Kang
> Priority: Major
> Time Spent: 20m
> Remaining Estimate: 0h
>
> Sample failure:
>
> [https://builds.apache.org/job/beam_PreCommit_Python_Phrase/1273/testReport/apache_beam.runners.interactive.display.pcoll_visualization_test/PCollectionVisualizationTest/test_dynamic_plotting_update_same_display/]
> Error Message
> IndexError: list index out of range
> Stacktrace
> self =
> <apache_beam.runners.interactive.display.pcoll_visualization_test.PCollectionVisualizationTest
> testMethod=test_dynamic_plotting_update_same_display>
> mocked_display_facets = <MagicMock name='display_facets'
> id='139889868386376'>
> @patch('apache_beam.runners.interactive.display.pcoll_visualization'
> '.PCollectionVisualization.display_facets')
> def test_dynamic_plotting_update_same_display(self,
> mocked_display_facets):
> fake_pipeline_result = runner.PipelineResult(runner.PipelineState.RUNNING)
> ie.current_env().set_pipeline_result(self._p, fake_pipeline_result)
> # Starts async dynamic plotting that never ends in this test.
> h = pv.visualize(self._pcoll, dynamic_plotting_interval=0.001)
> # Blocking so the above async task can execute some iterations.
> time.sleep(1)
> # The first iteration doesn't provide updating_pv to display_facets.
> _, first_kwargs = mocked_display_facets.call_args_list[0]
> self.assertEqual(first_kwargs, {})
> # The following iterations use the same updating_pv to display_facets and so
> # on.
> > _, second_kwargs = mocked_display_facets.call_args_list[1]
> E IndexError: list index out of range
> apache_beam/runners/interactive/display/pcoll_visualization_test.py:105:
> IndexError
> Standard Output
> <IPython.core.display.HTML object>
> Standard Error
> WARNING:apache_beam.runners.interactive.interactive_environment:You cannot
> use Interactive Beam features when you are not in an interactive environment
> such as a Jupyter notebook or ipython terminal.
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