nginx close upstream connection after request

Question

I need to keep alive my connection between nginx and upstream nodejs.

Just compiled and installed nginx 1.2.0

my configuration file:

upstream backend {     ip_hash;     server dev:3001;     server dev:3002;     server dev:3003;     server dev:3004;     keepalive 128; }  server {     listen      9000;     server_name dev;      location / {         proxy_pass http://backend;         error_page  404 = 404.png;     } } 

My programe (dev:3001 - 3004) detect that the connection was closed by nginx after response.

document

Answer 1

The documentation states that for http keepalive, you should also set proxy_http_version 1.1; and proxy_set_header Connection "";