> unless you have unfixable memory leaks there is no reason to do this.
It's also useful to set this threshold to prevent long-lived connections to services/datastores not used by every request from accumulating and consuming resources on those services.
gunicorn has an option --max-requests to restart every X requests but unless you have unfixable memory leaks there is no reason to do this.
Nginx can't directly run WSGI applications, you can do it with Nginx Unit which also never restarts processes.