dag = DAG( 'xcom_example', default_args=default_args, schedule_interval=timedelta(days=1), )
Here's a simple example of how XCom works:
In Apache Airflow, task orchestration is only half the battle. The real challenge often lies in data orchestration—specifically, how tasks share state, metadata, and small data payloads. While Airflow is fundamentally designed as a control plane rather than a data transport layer, Apache Airflow Cross-Communications (XComs) serve as the native mechanism for tasks to talk to one another. airflow xcom exclusive
Demystifying Apache Airflow XComs: The Exclusive, Definitive Guide
XCom, short for "cross-communication," is a feature in Airflow that allows tasks to share data with each other. It's a way for tasks to exchange messages, enabling more complex workflows and improving the overall flexibility of your data pipelines. With XCom, you can pass data from one task to another, making it easier to build dynamic and adaptive workflows. they are .
def load_data(**kwargs): ti = kwargs['ti']
Mastering Airflow XCom Exclusive Data Sharing: A Comprehensive Guide Demystifying Apache Airflow XComs: The Exclusive
This is the most critical constraint. Because XComs live in the metadata database, they are .