【學習Nginx-04】Nginx實現負載均衡

Nginx實現負載均衡

準備資源

準備1個Nginx服務器和2個Tomcat服務器

服務器	IP	端口
Nginx	192.168.1.20	84
Tomcat 1	192.168.1.21	8080
Tomcat 2	192.168.1.22	8080

編輯配置文件

user  root;
worker_processes  1;

events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;
    sendfile        on;
    keepalive_timeout  65;
    server {
        listen       80;
        server_name  localhost;

        location / {
            root   html;
            index  index.html index.htm;
        }

        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }

    }
	
	# =============BEGIN 負載均衡 =============
	# 配置負載均衡要使用 upstream
	upstream myServers{
		server 192.168.1.21:8080;
		server 192.168.1.22:8080;
	}
		
	server {
		listen 84;
		server_name localhost;
		
		location / {
			proxy_pass http://myServers;
		}

    }
	
	# =============END 負載均衡 =============

}

重新加載配置

sbin/nginx -s reload

訪問測試

訪問Nginx的http://192.168.1.20:84，請求會輪流的轉發到Tomcat1和Tomcat2

注意

爲了區分兩個Tomcat，我在index.jsp上分別加了Node - 1 - Tomcat 和 Node - 2 - Tomcat 的字樣