ashb commented on a change in pull request #7552: [AIRFLOW-5354] Reduce
scheduler CPU usage from 100%
URL: https://github.com/apache/airflow/pull/7552#discussion_r384706119
##########
File path: airflow/utils/dag_processing.py
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@@ -426,7 +426,7 @@ def harvest_simple_dags(self):
:return: List of parsing result in SimpleDag format.
"""
# Receive any pending messages before checking if the process has
exited.
- while self._parent_signal_conn.poll():
+ while self._parent_signal_conn.poll(timeout=0.01):
Review comment:
Yes, which says check but don't wait. (None is wait forever)
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