Airflow Concepts

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External

https://airflow.apache.org/docs/apache-airflow/stable/concepts/index.html

Internal

Airflow

Workflow

DAG

https://airflow.apache.org/docs/apache-airflow/stable/concepts/dags.html

Graph Concepts | Directed Acyclic Graph

Task

https://airflow.apache.org/docs/apache-airflow/stable/concepts/tasks.html

Tasks have dependencies on each other.

Operator

https://airflow.apache.org/docs/apache-airflow/stable/concepts/operators.html

Sensor

https://airflow.apache.org/docs/apache-airflow/stable/concepts/sensors.html

A Sensor is a subclass of Operator.

TaskFlow-decorated Task

https://airflow.apache.org/docs/apache-airflow/stable/concepts/taskflow.html

Workload

Scheduler

https://airflow.apache.org/docs/apache-airflow/stable/concepts/scheduler.html

Executor

https://airflow.apache.org/docs/apache-airflow/stable/executor/index.html

Worker

Metadata Database

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