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https://issues.apache.org/jira/browse/AIRFLOW-4760?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16860989#comment-16860989
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ASF GitHub Bot commented on AIRFLOW-4760:
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ashb commented on pull request #5404: [AIRFLOW-4760] Fix package DAGs
disappearing from DagBag when reloaded
URL: https://github.com/apache/airflow/pull/5404
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> Packaged DAGs disappear from the DagBag
> ---------------------------------------
>
> Key: AIRFLOW-4760
> URL: https://issues.apache.org/jira/browse/AIRFLOW-4760
> Project: Apache Airflow
> Issue Type: Bug
> Components: models
> Affects Versions: 1.10.1, 1.10.2, 1.10.3, 1.10.4, 2.0.0
> Reporter: Dan MacTough
> Assignee: Dan MacTough
> Priority: Major
> Attachments: 2019-06-07-ghosting-before.gif
>
>
> AIRFLOW-2900 introduced a change that broke Airflow whenever it tries to
> reprocess a packaged DAG. Since that change, the {{fileloc}} column in the
> database for packaged DAGs isn't an actual filepath. It looks something like:
> {{/usr/local/airflow/dags/package.zip/my_dag.py}} -- *notice that the path to
> the DAG inside the zip is appended to the zip file's path*. Then, when the
> {{DagBag#process_file}} method tries to load that filepath, it bails because
> that filepath is invalid.
>
> Steps to reproduce:
>
> # Add a packaged DAG to your DAGS_FOLDER
> # From the main /admin UI, click on the DAG to open it's detail view
> # Click the "Refresh" button
>
> What should happen:
> The detail view should refresh and display a "flash" message saying that the
> DAG is "fresh as a daisy."
>
> What actually happens:
> The app redirects to the main /admin UI and displays a "flash" error message
> in addition to the "fresh as a daisy" message.
>
> See animated GIF, attached.
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