Operator
An Airflow operator is a reusable workflow component that defines and executes a task through a standard operator interface.
Data Pipelines with Apache Airflow, Second Edition
A generic operator is an Airflow operator designed to run varied task types through one common operator interface.
- How it is used
- Frames a single operator interface as an alternative to coordinating varied pipeline tasks with many specialized operators.
- How deep it goes
- Explains maintenance and dependency motivations, then points to containers without specifying a generic operator implementation.
- Examples
- Contrasts HTTP, Python, and MySQL operators in a pipeline that fetches recommendations, ranks movies, and stores results.
- What you can do after
- Evaluate/understand when one operator interface may simplify DAG maintenance compared with using several specialized operators.
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Designing Deep Learning Systems: A guide for software engineers
A workflow component that executes a task according to a defined operation implementation.
- How it is used
- Deploys operators as executable tasks inside DAG-based workflows managed by an orchestration system.
- How deep it goes
- Explains predefined, customized, and custom operators, then traces worker execution and output storage without detailing operator internals.
- Examples
- Uses FileSensor, PythonOperator, PostgresOperator, MySqlOperator, SimpleHttpOperator, Docker operator, and shell commands as task implementations.
- What you can do after
- Apply it via Airflow to define workflow tasks with predefined operators, custom Python functions, or custom implementations.
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Related concepts
- sensorincludes · An Airflow sensor is a task component that repeatedly waits for an external condition or event and succeeds when it becomes true.
- taskused by · An Airflow task is a unit of workflow work that executes a defined operation under managed scheduling, dependencies, and error handling.
- PythonOperatorincludes · PythonOperator is an Airflow operator that executes a Python callable as a task.
- BashOperatorincludes · BashOperator is an Apache Airflow operator that executes a Bash command or script as a workflow task.
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