Nginx as a Load Balancer

Environments: 

There are three servers. One has been installed nginx (192.168.152.142, here). The other two servers (192.168.152.140, 192.168.152.143) have been install tomcat server (here).

Scenario:

The http request be submitted to nginx server, then we take nginx server as a load balancer to assign this request to one of tomcat servers equally.

Configuration Nginx (Windows)

1. Add the following paragraph content into nginx.conf (C:\nginx\conf\nginx.conf)

http {

upstream examples{

ip_hash;

server 192.168.152.140:8080;

server 192.168.152.143:8080;

}

       server {

         listen       80;

         server_name  localhost;

         location / { proxy_pass http://examples;

                       }

       }

}

2. restart your nginx. 

Ref: http://wiki.nginx.org/LoadBalanceExample