How to find the number of upstream tasks failed in Airflow?
问题 I am having a tough time in figuring out how to find the failed task for the same dag run running twice on same day( same execution day ). Consider an example when a dag with dag_id=1 has failed on the first run (due to any reason lets say connection timeout maybe) and task got failed. TaskInstance table will contain the entry of the failed task when we try to query it. GREAT!! But, If I re-run the same dag(note that dag_id is still 1) then in the last task(it has the rule of ALL_DONE so