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Amazon Managed Workflows for Apache Airflow (MWAA)¶
What¶
Amazon Managed Workflows for Apache Airflow (MWAA) is AWS's managed hosting for Apache Airflow. Customers bring DAG code (usually via S3); AWS runs the Airflow scheduler, webserver, metastore, and worker fleet, patches the underlying runtime, and handles autoscaling.
Why it appears on the wiki¶
Referenced in sources/2022-06-09-zalando-accelerate-testing-in-apache-airflow-through-dag-versioning as the "trivial way" to get per-PR Airflow isolation — one MWAA server per pull request. Rejected by Zalando because:
- Creation takes up to ~30 minutes per new server.
- Each extra server costs real money.
So instead Zalando kept a single Airflow test server and got per-PR isolation on top of it via DAG-id versioning (creation <1 min, no new compute).
MWAA thus sets the baseline cost against which the article's cheaper-isolation design is measured.