uranusjr commented on code in PR #28128:
URL: https://github.com/apache/airflow/pull/28128#discussion_r1058099167
##########
airflow/jobs/scheduler_job.py:
##########
@@ -880,13 +880,22 @@ def _run_scheduler_loop(self) -> None:
# is finished to avoid concurrent access to the DB.
self.log.debug("Waiting for processors to finish since
we're using sqlite")
self.processor_agent.wait_until_finished()
-
- with create_session() as session:
- num_queued_tis = self._do_scheduling(session)
-
- self.executor.heartbeat()
- session.expunge_all()
- num_finished_events =
self._process_executor_events(session=session)
+
+ for attempt in run_with_db_retries():
+ with attempt:
+ start_time = time.time()
+ try:
+ with create_session() as session:
+ num_queued_tis = self._do_scheduling(session)
+
+ self.executor.heartbeat()
+ session.expunge_all()
+ num_finished_events =
self._process_executor_events(session=session)
+ except OperationalError as e:
+ total_time = time.time() - start_time
+ self.log.error("got a DB exception (retry:%d,
total time in seconds: %d), details: %s", attempt.retry_state.attempt_number,
total_time, e)
Review Comment:
Or we could raise a different exception with a clearer message here for
tenecity to log.
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