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https://issues.apache.org/jira/browse/AIRFLOW-1102?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16146503#comment-16146503
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Joel Bondurant edited comment on AIRFLOW-1102 at 8/30/17 2:45 AM:
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I keep hitting this cryptic issue with the unmaintained gunicorn code in
Airflow. The fix is:
{code:none}
sudo -H pip3 uninstall -y gunicorn
sudo -H pip3 install gunicorn==19.3.0
{code}
was (Author: joelbondurant):
I keep hitting this cryptic issue with the unmaintained gunicorn code in
Airflow. The fix is:
{code:bash}
sudo -H pip3 uninstall -y gunicorn
sudo -H pip3 install gunicorn==19.3.0
{code}
> 'airflow webserver' doesn't work with gunicorn 19.4+
> ----------------------------------------------------
>
> Key: AIRFLOW-1102
> URL: https://issues.apache.org/jira/browse/AIRFLOW-1102
> Project: Apache Airflow
> Issue Type: Bug
> Components: dependencies
> Reporter: Yuu Yamashita
>
> {{airflow webserver}} will show an error of "Error:
> 'airflow.www.gunicorn_config' doesn't exist" if it invoked with gunicorn
> 19.4+, just like the following example.
> {noformat}
> % airflow webserver
> [2017-04-11 05:34:28,945] {__init__.py:57} INFO - Using executor LocalExecutor
> ____________ _____________
> ____ |__( )_________ __/__ /________ __
> ____ /| |_ /__ ___/_ /_ __ /_ __ \_ | /| / /
> ___ ___ | / _ / _ __/ _ / / /_/ /_ |/ |/ /
> _/_/ |_/_/ /_/ /_/ /_/ \____/____/|__/
> [2017-04-11 05:34:29,968] [32339] {models.py:167} INFO - Filling up the
> DagBag from ./dags
> [2017-04-11 05:34:30,427] [32339] {connectionpool.py:735} INFO - Starting new
> HTTPS connection (1): sts.amazonaws.com
> Running the Gunicorn Server with:
> Workers: 4 sync
> Host: 0.0.0.0:8081
> Timeout: 120
> Logfiles: - -
> =================================================================
> Error: 'airflow.www.gunicorn_config' doesn't exist
> {noformat}
> At present, it seems that airflow is configured to require gunicorn prior to
> 19.4. It should be fixed intrinsically for future upgrade of gunicorn anyways.
> https://github.com/benoitc/gunicorn/blob/19.4/gunicorn/app/base.py#L111-L119
> Starting from {{gunicorn}} 9.4, it seems it started requiring prefix
> "python:" for module name passed to {{-c}}. Because {{airflow webserver}} [is
> specifying
> airflow.www.gunicorn_config|https://github.com/apache/incubator-airflow/blob/6b1c327ee886488eedbe8a8721708b89f37d5560/airflow/bin/cli.py#L779]
> as {{-c}} for {{gunicorn}}, it won't work with gunicorn 9.4+
> * gunicorn 9.3:
> https://github.com/benoitc/gunicorn/blob/19.3/gunicorn/app/base.py#L111-L114
> * gunicorn 9.4:
> https://github.com/benoitc/gunicorn/blob/19.4/gunicorn/app/base.py#L111-L119
> I've opened [a PR to gunicorn|https://github.com/benoitc/gunicorn/pull/1499]
> to restore original behavior prior to 19.3. However, it'd be also better to
> be fixed in {{airflow webserver}} itself.
> h5. See also
> * https://github.com/benoitc/gunicorn/pull/1068
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