apache
Add todo re exception handling in dagrun create loop
In SchedulerJobRunner, in _create_dag_runs, we do except Exception: ... continue but this does not work when the exception is the result of a db error; in that case you need to roll the transaction back.
To fix this we need either smaller transactions (e.g. one per dag run create attempt) or savepoints. either way it's a bit of a refactor.
Issue: https://github.com/apache/airflow/issues/59120
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