john-jac commented on a change in pull request #18954:
URL: https://github.com/apache/airflow/pull/18954#discussion_r745005588
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File path: docs/apache-airflow/concepts/scheduler.rst
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@@ -60,6 +60,34 @@ In the UI, it appears as if Airflow is running your tasks a
day **late**
You should refer to :doc:`/dag-run` for details on scheduling a DAG.
+DAG File Processing
+-------------------
+
+The Airflow Scheduler is responsible for turning the Python files contained in
the DAGs folder into DAG objects that contain tasks to be scheduled.
+
+There are two primary components involved in DAG file processing. The
``DagFileProcessorManager`` is an infinite loop that determines which files need
Review comment:
No worries @ashb ! I've updated the doc with that distinction.
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