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From "ASF GitHub Bot (Jira)" <>
Subject [jira] [Commented] (AIRFLOW-5663) PythonVirtualenvOperator doesn't print logs until the operator is finished
Date Tue, 22 Oct 2019 17:53:00 GMT


ASF GitHub Bot commented on AIRFLOW-5663:

wjiangqc commented on pull request #6389: [AIRFLOW-5663]: Switch to real-time logging in PythonVirtualenvOperator.
   Make sure you have checked _all_ steps below.
   ### Jira
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issues and references them in the PR title. For example, "\[AIRFLOW-XXX\] My Airflow PR"
   ### Description
   - [x] Here are some details about my PR, including screenshots of any UI changes:
   Allow us to see the logs while the operator is running.
   ### Tests
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good reason:
   Existing 19 unit tests passed.
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> PythonVirtualenvOperator doesn't print logs until the operator is finished
> --------------------------------------------------------------------------
>                 Key: AIRFLOW-5663
>                 URL:
>             Project: Apache Airflow
>          Issue Type: Bug
>          Components: operators
>    Affects Versions: 1.10.5
>            Reporter: Wei Jiang
>            Priority: Major
> It seems the {{PythonVirtualenvOperator }}doesn't print out the log until the job is
done. When we use logging in {{PythonOperator}}, it does print out logging in real time. It
would be nice for the {{PythonVirtualenvOperator}} to have the same functionality as the
{{PythonOperator}} so we can see the logging output as the PythonVirtualenvOperator makes
> []
> {code:python}
>     def _execute_in_subprocess(self, cmd):
>         try:
>   "Executing cmd\n%s", cmd)
>             output = subprocess.check_output(cmd,
>                                              stderr=subprocess.STDOUT,
>                                              close_fds=True)
>             if output:
>       "Got output\n%s", output)
>         except subprocess.CalledProcessError as e:
>   "Got error output\n%s", e.output)
>             raise
> {code}

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