dstandish commented on PR #36639:
URL: https://github.com/apache/airflow/pull/36639#issuecomment-2021080626

   @syun64 sorry that i have not been active on this for a while.  my concern 
is that i don't think it's an SLA if it's evaluated against "when it started" 
-- i think an SLA is about "when it should have run"
   
   the customer doesn't care when your dag started, they care about when their 
data is updated.  that is an overly-broad generalization but i think it 
illustrates the point.
   
   i think that we can and should add an SLA on the dag. but to me i don't 
think that it's an SLA if you're evaluating against when it started running, 
even if for example the run started very late.
   
   i think the fact that "when it should have run" does not make sense for 
manually triggered or dataset-triggered dags is not a good reason to change the 
definition for scheduled dags.  i think we need to come up with a different 
solution for those kinds of dags.


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