[jira] [Commented] (AIRFLOW-2923) LatestOnlyOperator cascade skip through all_done and dummy

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AIRFLOW-2923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17024169#comment-17024169 ] 

ASF GitHub Bot commented on AIRFLOW-2923:
-----------------------------------------

kaxil commented on pull request #5970: [AIRFLOW-2923][AIRFLOW-1784] Implement LatestOnlyOperator as BaseBranchOperator
URL: https://github.com/apache/airflow/pull/5970
 
 
   
 
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> LatestOnlyOperator cascade skip through all_done and dummy
> ----------------------------------------------------------
>
>                 Key: AIRFLOW-2923
>                 URL: https://issues.apache.org/jira/browse/AIRFLOW-2923
>             Project: Apache Airflow
>          Issue Type: Bug
>          Components: scheduler
>    Affects Versions: 1.9.0, 1.10.5, 1.10.6, 1.10.7
>         Environment: CeleryExecutor, 2-nodes cluster, RMQ, PostgreSQL
>            Reporter: Dmytro Kulyk
>            Assignee: Cedrik Neumann
>            Priority: Major
>              Labels: cascade, latestonly, skip
>         Attachments: cube_update.py, screenshot-1.png
>
>
> DAG with consolidating point (calc_ready : dummy)
> as per [https://airflow.apache.org/concepts.html#latest-run-only] given task should be ran even catching up an execution DagRuns for a previous periods
>  However, LatestOnlyOperator cascading through calc_ready despite of it is a dummy and trigger_rule=all_done, none_failed
>  Same behavior when trigger_rule=all_success
> {code}
> t_ready = DummyOperator(
>   task_id = 'calc_ready',
>   trigger_rule = TriggerRule.ALL_DONE,
>   dag=dag)
> {code}
> !screenshot-1.png!



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