How to prevent airflow from backfilling dag runs?

Question

Say you have an airflow DAG that doesn\'t make sense to backfill, meaning that, after it\'s run once, running it subsequent times quickly would be completely pointless.

Answer 1

Upgrade to airflow version 1.8 and use catchup_by_default=False in the airflow.cfg or apply catchup=False to each of your dags.

https://github.com/apache/incubator-airflow/blob/master/UPDATING.md#catchup_by_default