nginx 负载均衡

worker_processes  1;
events {
    worker_connections  1024;
}

http {
    include       mime.types;
    default_type  application/octet-stream;
    sendfile        on;
    keepalive_timeout  65;
		upstream a.com {
    	server localhost:8181;
    	server 192.168.3.141:8090;  #这里要用ip 不能用域名
    }
    server {
        listen       8078;
        server_name  a.com;
        location / {
            proxy_pass         http://a.com; 
		        proxy_set_header   Host             $host; 
		        proxy_set_header   X-Real-IP        $remote_addr; 
		        proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for; 
		        proxy_connect_timeout 1;   # 不设置的话, 一台机器宕机后会变得很慢
    				proxy_read_timeout 1;
    				proxy_send_timeout 1; 
        }
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }

    }

}