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Posted to commits@airflow.apache.org by GitBox <gi...@apache.org> on 2022/01/23 15:26:44 UTC

[GitHub] [airflow] ghostbody commented on issue #19767: dag callbacks are missed sometimes

ghostbody commented on issue #19767:
URL: https://github.com/apache/airflow/issues/19767#issuecomment-1019507616


   We rewrite our dag logic and replace the callback by a task. (as for `on_failure_hook`, we use a task with `one_failed`). More Information: https://airflow.apache.org/docs/apache-airflow/stable/concepts/dags.html#trigger-rules
   
   Callbacks are unreliable as we tought. There are three reasons:
   
   1. Callback executions are not logged to dag or dag_run which is hard to locate.
   2. Callbacks can not be retried even when they fail.
   3. Sometimes, they are missed.
   
   Hope this help you~ @jpradass 
   


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