To clarify a few things: The delay has nothing to do with the proxy_cache_valid 200 time, this change only made me realize that there seems to be a problem. Before this change our web monitoring would always get a cache HIT, and after it mostly got a STALE response because it checks every minute.
We use NGINX 1.15.0 mainline. Posted at Nginx Forum: https://forum.nginx.org/read.php?2,280434,280437#msg-280437 _______________________________________________ nginx mailing list nginx@nginx.org http://mailman.nginx.org/mailman/listinfo/nginx