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Posted to commits@airflow.apache.org by GitBox <gi...@apache.org> on 2020/01/06 02:22:01 UTC

[GitHub] [airflow] yuqian90 commented on issue #7038: [AIRFLOW-4495] allow externally triggered dags to run for future exec dates

yuqian90 commented on issue #7038: [AIRFLOW-4495] allow externally triggered dags to run for future exec dates
URL: https://github.com/apache/airflow/pull/7038#issuecomment-570979008
 
 
   > I don't think we should allow this. This will create a problem for the following case:
   > 
   > DAG is scheduled to run every day at 5 PM
   > 
   > 1. Dag is triggered for a future date (ex: 10 Jan 2020 17:00:00) and succeeds
   > 2. 10 Jan arrives, Scheduler tries to run it but fails because it violates unique key constraint
   
   Hi, @kaxil. Thanks for pointing out. I agree with @tooptoop4 that his change is only meant for DAGs with `schedule_interval` equal to None, i.e. those that are triggered externally using the CLI or other means. The ones scheduled by Airflow should not be affected.

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