You have to delete the .py dag file from the dag storage volume and then also from the UI. In the version we use the UI only deletes the data for that dag from the metadata db.
I am quite new in Airflow. However I tried to delete some DAGs in airflow (manually; using just bottom) ,but after deletion I got message (so the physically DAG do not exist anymore)
Broken DAG: [/usr/local/airflow/dags/reports_general/templates/data_quality_report_airflow__.py] Invalid control character at: line 2 column 116 (char 118)
Anyone has idea how to resolve?
delete Airflow DAG