Hi, I had a problem where if I had this in my airflow.cfg:
and kombu 4.0.2 was installed, then the sqla URL did not work, and celery did not work. See: https://issues.apache.org/jira/projects/AIRFLOW/issues/AIRFLOW-2495 https://github.com/apache/incubator-airflow/pull/3388 -- Craig
