On Mon, Jun 22, 2009 at 6:56 AM, afen<nginx-forum@nginx.us> wrote:
> i stress test nginx on window2003,but the action connections never in excess of 512$B!#(B
> why?my config:
>
> worker_processes 1;
>
> events {
> worker_connections 1024;
> }
>
> Posted at Nginx Forum: http://forum.nginx.org/read.php?2,3233,3233#msg-3233
>
> host has failed to respond) while connecting to upstream, client: 192.168.1.100, server: localhost, request: "GET /index.php HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "localhost"

Probably because you use two connections when proxying - one for
client connection - one for backend.