seelmann commented on a change in pull request #3596: [AIRFLOW-2747] Explicit
re-schedule of sensors
URL: https://github.com/apache/incubator-airflow/pull/3596#discussion_r219044092
##########
File path: airflow/models.py
##########
@@ -1744,6 +1749,29 @@ def dry_run(self):
self.render_templates()
task_copy.dry_run()
+ @provide_session
+ def handle_reschedule(self, reschedule_exception, test_mode=False,
context=None,
+ session=None):
+ self.end_date = timezone.utcnow()
+ self.set_duration()
+
+ # Log reschedule request
+ session.add(TaskReschedule(self.task, self.execution_date,
self._try_number,
+ self.start_date, self.end_date,
+ reschedule_exception.reschedule_date))
+
+ # set state
+ self.state = State.NONE
+
+ # Decrement try_number so subsequent runs will use the same try number
and write
+ # to same log file.
+ self._try_number -= 1
+
+ if not test_mode:
+ session.merge(self)
+ session.commit()
Review comment:
I changed it to skip reschedule handling completely when in `test_mode`,
added test and verified behaviour via command line.
Regarding the first question regarding exception handing and rollback,
that's is covered by the `@provide_session` decorator around.
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