multiple instance of gunicorn API endpoint 404

[weijiang1994]

I use gunicorn deploy my flask application, and set SCHEDULER_API_ENABLED=True in my application configure. When I open /scheduler/jobs endpoint, sometimes I can get correct response, but sometimes I got 404.

I started application with the following command.

gunicron -w 4 -b 0.0.0.0:5000 wsgi:app

I guess is that only one scheduler was started, resulting in only one instance of apscheduler existing for current_app.