How to avoid 502 Bad Gateway error?

Question

Django

Deployed server with NGINX -> uWSGI -> Django stack on OC Debian. When the number of requests increases to 150 requests per second, a 502 Bad Gateway error occurs. There is no load on the iron. Tried various configurations of uWSGI workers and tweaking the Linux networking stack, but all to no avail.

Answer 1

It looks like your backend is responding too slowly. Either optimize or increase the number of workers.