[GitHub] [airflow] Bowrna commented on issue #27614: Double execution of failure callback for task

[GitBox <gi...@apache.org>]

Bowrna commented on issue #27614:
URL: https://github.com/apache/airflow/issues/27614#issuecomment-1336876079

   @potiuk I will check if this is getting executed twice in "normal" circumstances / complex error scenarios as you mentioned.
   
   My understanding from reading the documentation was that the failure callback has to be executed in all cases. 
   ```
   Generally speaking - yes the callback can be executed by both task running (when task CAN execute callback) and by DagFileProcessor (when task callback cannot be executed in task - for example when task was forcefully killed).
   
   ```
   
   When the execution is failed during the run, or the task is forcefully killed, I thought a failure callback for the task will be invoked as there is no mention of this one in the documentation. I can verify this part and document it. 


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