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https://issues.apache.org/jira/browse/AIRFLOW-4799?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jarek Potiuk resolved AIRFLOW-4799.
-----------------------------------
Resolution: Fixed
Fix Version/s: 2.0.0
1.10.4
> tests using bash operator fail flakily because jinja2 rendering of
> environment variables
> ----------------------------------------------------------------------------------------
>
> Key: AIRFLOW-4799
> URL: https://issues.apache.org/jira/browse/AIRFLOW-4799
> Project: Apache Airflow
> Issue Type: Bug
> Components: core
> Affects Versions: 2.0.0
> Reporter: Daniel Standish
> Assignee: Daniel Standish
> Priority: Trivial
> Fix For: 1.10.4, 2.0.0
>
>
> In test_retry_delay in task instance tests we see this:
> {code:python}
> ti = TI(
> task=task, execution_date=timezone.utcnow())
> self.assertEqual(ti.try_number, 1)
> # first run -- up for retry
> run_with_error(ti)
> self.assertEqual(ti.state, State.UP_FOR_RETRY)
> self.assertEqual(ti.try_number, 2)
> # second run -- still up for retry because retry_delay hasn't expired
> run_with_error(ti)
> self.assertEqual(ti.state, State.UP_FOR_RETRY)
> # third run -- failed
> time.sleep(3)
> run_with_error(ti)
> self.assertEqual(ti.state, State.FAILED)
> {code}
> The same TI is re-run multiple times.
> The problem is that in the execute method of BashOperator, the {{env}}
> attribute is modified, and updated to include a copy of the parent bash env.
> Then when this TI is executed another time, it again tries to render {{env}},
> because it is a templated parameter. And it will attempt to load every
> {{.sh}} or {{.bash}} file found in `env` as a template. If one file does not
> exist, test will fail with template not found error.
> The modifications of env in execute method should be local to execute method.
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