If too many scheduling tasks are in the queue state, the dag tasks are no longer allowed

[bangbangDong]

When I use the airflow task clear command, a large number of scheduling tasks (some tasks) need to be re-allowed. When the number of re-allowed scheduling tasks is small, it can be normally allowed, but when the number is too large, the dag will no longer allow new tasks and keep a large number of scheduling tasks in the queue