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Date: Sat, 5 Aug 2017 13:20:03 +0000 (UTC)
From: "Lance Dacey (JIRA)" <jira@apache.org>
To: commits@airflow.incubator.apache.org
Message-ID: <JIRA.13063358.1491960900000.100006.1501939203227@Atlassian.JIRA>
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Subject: [jira] [Commented] (AIRFLOW-1102) 'airflow webserver' doesn't work
 with gunicorn 19.4+
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archived-at: Sat, 05 Aug 2017 13:20:17 -0000


    [ https://issues.apache.org/jira/browse/AIRFLOW-1102?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16115398#comment-16115398 ] 

Lance Dacey commented on AIRFLOW-1102:
--------------------------------------

Hi, what is the fix for this? I installed 19.3 but I still get the same error. My webserver has been running fine since May 2017. I turned it off temporarily and when I tried to start it up again, I just keep getting this error.

> '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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