![]() ![]() Parent DAGs have to be defined globally and only parent DAGs objects and their SubDAGs will be callable. They are not callable without parent DAG. SubDAGs are executed with SubDAGOperator on its parent DAG. For instance if a DAG flow is making tea do not control garage door in that DAG.Ī DAG can be called as a SubDAG which is defined under a python function. It can cause hard management, troubleshooting etc. Having multiple workflow in a DAG is not restricted but logically it is not recommended. We can create as many as we want with their arbitrary number of tasks. It is defined in python files that are placed in DAG_FOLDER which is defined in the Airflow configuration file (airflow.cfg) that is in airflow_home directory.Įach DAG and its tasks have an ID to reach their objects. Executors to run tasks locally or on a workerĪn Airflow DAG is a collection of all the tasks you want to run, organized in a way that show their relationships and dependencies. ![]()
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