dgbarmac commented on issue #26760:
URL: https://github.com/apache/airflow/issues/26760#issuecomment-1626037839

   Hi,
   
   I think I have a related problem. I'm using Airflow v2.5.1 and testing using 
the following code:
   
   ```
   from airflow import DAG
   from airflow.operators.bash_operator import BashOperator
   from datetime import datetime, timedelta
   from utils import UtilsFunctions
   
   default_args = {
       'owner': 'owner',
       'email_on_failure': False,
       'email_on_retry': False,
       'email': ['airf...@airflow.com'],
   }
   
   def failure_callback_dag(context):
       print("Inside failure_callback_dag")
       print(context["task_instance"])
       print(context["task"])
   
   with DAG(
       dag_id='sns_test',
       default_args=default_args,
       start_date=datetime(2023, 1, 1),
       schedule_interval=None,
       on_success_callback=None,
       on_failure_callback=failure_callback_dag,
       catchup=False,
   ) as dag:
       task = BashOperator(
           task_id="bash-error",
           bash_command=f"error",
       )
   
       task
   ```
   Checking the logs I can't see the prints that I made. I think that the 
callback is not even being called. Using the default_args works but I would 
like to have a callback called only once.
   
   I can't see what I am doing wrong.
   
   Do you have any ideias?


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