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From "t oo (Jira)" <j...@apache.org>
Subject [jira] [Commented] (AIRFLOW-5523) DAGs never get cleaned up from webservers if DAG file is removed from the scheduler
Date Wed, 01 Jan 2020 10:56:00 GMT

    [ https://issues.apache.org/jira/browse/AIRFLOW-5523?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17006379#comment-17006379
] 

t oo commented on AIRFLOW-5523:
-------------------------------

my thoughts: autodelete dags that are no longer in any dagbag....ie dynamic dag generator
used to make 10 dags, now makes 7...other 3 should be auto deleted...guarded by config option
'auto_delete_dags_not_found'

> DAGs never get cleaned up from webservers if DAG file is removed from the scheduler
> -----------------------------------------------------------------------------------
>
>                 Key: AIRFLOW-5523
>                 URL: https://issues.apache.org/jira/browse/AIRFLOW-5523
>             Project: Apache Airflow
>          Issue Type: Bug
>          Components: webserver
>    Affects Versions: 1.10.5
>            Reporter: Dan Davydov
>            Priority: Major
>         Attachments: Screen Shot 2019-09-19 at 4.39.24 PM.png
>
>
> DAGs are never removed from the DB if the DAG file used to generate the DAGs is removed.
This causes the webserver to accumulate broken dag rows (see attached screenshot).
> The scheduler should delete all DAGs from the DAG table with files that no longer exist
when it scans the DAGs folder for files.



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