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https://issues.apache.org/jira/browse/AIRFLOW-2279?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17012376#comment-17012376
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ASF subversion and git services commented on AIRFLOW-2279:
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Commit d7499b11d2bb2dc78dcee4b02c6388dfea6a2c3a in airflow's branch
refs/heads/master from yuqian90
[ https://gitbox.apache.org/repos/asf?p=airflow.git;h=d7499b1 ]
[AIRFLOW-2279] Clear tasks across DAGs if marked by ExternalTaskMarker (#6633)
> Clearing Tasks Across DAGs
> --------------------------
>
> Key: AIRFLOW-2279
> URL: https://issues.apache.org/jira/browse/AIRFLOW-2279
> Project: Apache Airflow
> Issue Type: Improvement
> Reporter: Achal Soni
> Assignee: Qian Yu
> Priority: Major
> Attachments: cross_dag_ui_screenshot.png
>
>
> At Stripe, we commonly have discrete dags that depend on each other by
> leveraging ExternalTaskSensors. We also find ourselves routinely wanting to
> not only clear tasks and their downstream tasks in a particular dag, but also
> their downstream tasks in their dependent dags (linked by
> ExternalTaskSensors).
> We currently have extended Airflow to handle this by modifying the webapp and
> cli tool to optionally clear dependent tasks across multiple dags (see
> attached screenshot).
> We want to open the floor for discussion with the larger Airflow community
> about the usage of ExternalTaskSensors and specifically how to handle
> clearing across dags. We are interested in learning more about the accepted
> practices in this regard, and are very open/willing to contribute in this
> area if there is interest!
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