To set up Nginx as a load balancer

The settings are specified in the configuration file, C:\tools\nssm-2.24/conf/nginx.conf.

To set up Nginx as a load balancer:

Modify the settings as per your requirements.

To modify the settings:

1. Open the nginx.conf in any text editor. Default configuration contains two blocks: events {…} and http {…}.

2. In the nginx.conf file, remove the default http block and add a new http block as follows:

#user nobody;
worker_processes 1;

#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;

#pid        logs/nginx.pid;

events {
    worker_connections 1024;
}

http {
keepalive_timeout 65;

	include mime.types;
    	default_type application/octet-stream;
	
	sendfile on;

      	client_max_body_size 200M;

log_format main '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                        '"$http_user_agent" "$http_x_forwarded_for" ';
	
	upstream aeservers{
		server 10.41.16.72:8080;
		server 10.41.4.50:8080;
	}
	
server {
	  	listen 80; 
	   	access_log logs/host.access.log main;
		error_log logs/host.error.log info;

		underscores_in_headers on;

		location ^~/aeui/ {
		  	proxy_pass http://aeservers;
		  	proxy_connect_timeout 300s;
		  	proxy_set_header X-Real-IP $remote_addr;
		  	proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
		  	proxy_pass_request_headers on;
	  	}

	  	location ^~/aeengine/rest {
		  	proxy_pass http://aeservers;
		  	proxy_set_header Host $host;
		  	#proxy_next_upstream error timeout invalid_header http_500;
		  	proxy_connect_timeout 2;
proxy_send_timeout 600s;
proxy_read_timeout 600s;
		  	proxy_set_header X-Real-IP $remote_addr;
		  	proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
		  	proxy_pass_request_headers on;
	  	}
	}
}

tip

• Set proxy_send_timeout configuration parameter value considering the maximum time taken to fulfill any request through Nginx. See the Nginx resources for complete list of configuration parameters.
• Set underscores_in_headers on, so that Nginx does not silently drop HTTP headers with underscores. In the configuration file, you can modify the following settings as per your requirement and availability:
• Nginx runs on the default port number, 80. To modify the port details, go to the following line in the conf file:

server 
{
    listen 80;
}

• Modify the IP addresses and ports of AE servers (aeengine, aeui) as per your environment. The default IP addresses are as follows: 10.41.16.72:8080 and 10.41.4.50:8080.
• Browser and Agent will point to Nginx server. Nginx server will internally redirect the requests to one of the available AE servers (default round-robin method).

Start or stop Nginx

If Nginx is set up as a Windows Service, you can start or stop the service from the Windows Services console.