ephraimbuddy commented on a change in pull request #20391:
URL: https://github.com/apache/airflow/pull/20391#discussion_r785483597
##########
File path: airflow/jobs/scheduler_job.py
##########
@@ -289,8 +290,21 @@ def _executable_task_instances_to_queued(self, max_tis:
int, session: Session =
.filter(not_(DM.is_paused))
.filter(TI.state == TaskInstanceState.SCHEDULED)
.options(selectinload('dag_model'))
- .order_by(-TI.priority_weight, DR.execution_date)
)
+ if session.bind.dialect.name == "postgresql":
+ query = query.order_by(
+ TI.priority_weight.desc(),
+ TI.last_scheduling_decision.desc().nullsfirst(),
Review comment:
Using desc helps us go from the oldest date to recent. Using asc may
make it difficult to reach a dag that first hit the max_active_runs
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