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https://issues.apache.org/jira/browse/AIRFLOW-266?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15553122#comment-15553122
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Russell Pierce commented on AIRFLOW-266:
----------------------------------------
FWIW I have the same configuration, using a pool with the LocalExecutor
produces the behavior you describe. In my case an additional side effect is
that the backfill loop won't ever actually end despite all tasks being
completed successfully. In addition, the queue for the pool is totally
ignored, but I imagine that is more or less expected.
> Intermittent test failures
> --------------------------
>
> Key: AIRFLOW-266
> URL: https://issues.apache.org/jira/browse/AIRFLOW-266
> Project: Apache Airflow
> Issue Type: Bug
> Components: tests
> Affects Versions: Airflow 1.7.1.2
> Reporter: Chris Riccomini
>
> I'm seeing intermittent failures of the "Test that the scheduler handles
> queued tasks correctly" test:
> {noformat}
> ======================================================================
> FAIL: Test that the scheduler handles queued tasks correctly
> ----------------------------------------------------------------------
> Traceback (most recent call last):
> File "/home/travis/build/apache/incubator-airflow/tests/jobs.py", line 309,
> in test_scheduler_pooled_tasks
> self.assertEqual(ti.state, State.QUEUED)
> nose.proxy.AssertionError: None != 'queued'
> {noformat}
> Here's one example:
> https://travis-ci.org/apache/incubator-airflow/jobs/139142905
> Note: other builds in the same commit pass:
> https://travis-ci.org/apache/incubator-airflow/builds/139142900
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