Airflow Xcom Exclusive Info

The primary way to handle these communications is through the xcom_pull() method

If using traditional operators, you can restrict data retrieval by providing specific arguments: airflow xcom exclusive

If using SqlXComBackend with PostgreSQL, you can use SELECT ... FOR UPDATE to lock an XCom row during push/pull, but Airflow does not do this automatically. The primary way to handle these communications is

Scenario:

: This operator features a strict mutual exclusivity between store_to_xcom_key and writing to a local file. You can either return the file content via XCom or save it to a filename, but not both. but not both.