title: How do I add a new dag to a running airflow service?
body: <p>I have an airflow service that is currently running as separate docker containers for the webserver and scheduler, both backed by a postgres database. I have the dags synced between the two instances and the dags load appropriately when the services start. However, if I add a new dag to the dag folder (on both containers) while the service is running, the dag gets loaded into the dagbag but show up in the web gui with missing metadata. I can run "airflow initdb" after each update but that doesn't feel right. Is there a better way for the scheduler and webserver to sync up with the database?</p>