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https://issues.apache.org/jira/browse/BEAM-6280?focusedWorklogId=182087&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-182087
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ASF GitHub Bot logged work on BEAM-6280:
----------------------------------------
Author: ASF GitHub Bot
Created on: 08/Jan/19 00:41
Start Date: 08/Jan/19 00:41
Worklog Time Spent: 10m
Work Description: rohdesamuel commented on pull request #7433:
[BEAM-6280] Refactors Python portability tests to be multi-threaded aware
URL: https://github.com/apache/beam/pull/7433
The local_job_service.py module was too complex and had a number of
multi-threaded issues. One of the issue was that the Get(Message|State)Stream
methods did not guarantee the consumer would see all message/state transitions.
Another issue was a data race between messages and state transitions. In the
test the PortableRunner would try and wait for any last messages. However,
there was a race between receiving the message and the PortableRunner waiting
for a terminal state. What might have happened was a job transition into a
terminal state and the consumer would not receive the message, failing the test.
Note: I wasn't able to repro the bug on my local machine but did my best to
zero in on any multi-threading issues. There may be follow-up PRs to fix the
issue if it pops up again.
------------------------
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Issue Time Tracking
-------------------
Worklog Id: (was: 182087)
Time Spent: 10m
Remaining Estimate: 0h
> Failure in PortableRunnerTest.test_error_traceback_includes_user_code
> ---------------------------------------------------------------------
>
> Key: BEAM-6280
> URL: https://issues.apache.org/jira/browse/BEAM-6280
> Project: Beam
> Issue Type: Bug
> Components: sdk-py-core, test-failures
> Reporter: Kenneth Knowles
> Assignee: Sam Rohde
> Priority: Critical
> Labels: flaky-test
> Time Spent: 10m
> Remaining Estimate: 0h
>
> [https://builds.apache.org/job/beam_PreCommit_Python_Cron/732/]
> [https://builds.apache.org/job/beam_PreCommit_Python_Cron/732/testReport/apache_beam.runners.portability.portable_runner_test/PortableRunnerTest/test_error_traceback_includes_user_code/]
> [https://scans.gradle.com/s/do3hjulee3gaa/console-log?task=:beam-sdks-python:testPython3]
> {code:java}
> 'second' not found in 'Traceback (most recent call last):\n File
> "/home/jenkins/jenkins-slave/workspace/beam_PreCommit_Python_Cron/src/sdks/python/apache_beam/runners/portability/fn_api_runner_test.py",
> line 466, in test_error_traceback_includes_user_code\n p |
> beam.Create([0]) | beam.Map(first) # pylint:
> disable=expression-not-assigned\n File
> "/home/jenkins/jenkins-slave/workspace/beam_PreCommit_Python_Cron/src/sdks/python/apache_beam/pipeline.py",
> line 425, in __exit__\n self.run().wait_until_finish()\n File
> "/home/jenkins/jenkins-slave/workspace/beam_PreCommit_Python_Cron/src/sdks/python/apache_beam/runners/portability/portable_runner.py",
> line 314, in wait_until_finish\n self._job_id, self._state,
> self._last_error_message()))\nRuntimeError: Pipeline
> job-cdcefe6d-1caa-4487-9e63-e971f67ec68c failed in state FAILED: start
> <DataInputOperation receivers=[ConsumerSet[Create/Read/Impulse.out0,
> coder=WindowedValueCoder[BytesCoder], len(consumers)=1]]>\n'{code}
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