Airflow Sensor

External

• https://airflow.apache.org/docs/apache-airflow/stable/concepts/sensors.html
• https://airflow.apache.org/docs/apache-airflow/stable/concepts/smart-sensors.html
• https://airflow.apache.org/docs/apache-airflow/2.0.0/concepts.html#sensors

Internal

• Airflow Concepts

Overview

A Sensor is a subclass of Operator. Sensors wait for an external event to happen. When the event they are waiting for occurs, the tasks succeeds, so their downstream tasks can ru.

Also see Deferrable Operators and Triggers.