ashb commented on a change in pull request #4673: [AIRFLOW-3851]
ExternalTasksensor not check existence in later poke
URL: https://github.com/apache/airflow/pull/4673#discussion_r255172996
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File path: airflow/sensors/external_task_sensor.py
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@@ -117,7 +119,9 @@ def poke(self, context, session=None):
DM = DagModel
TI = TaskInstance
DR = DagRun
- if self.check_existence:
+
+ # we only do the check for 1st time, no need for subsequent poke
+ if self.check_existence and not self.has_check_existence:
Review comment:
Nothing wrong with this, but with the rescheduling of sensors this won't be
persisted :(
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