Nginx + IIS + Web front end (Spring MVC) - load balancing (1)

Introduction

When we develop large-scale web projects, if our web is published on IIS on a server, when a large number of requests are made to the IIS service, the computer will easily crash. So we thought, why don't we put our services on multiple computers? In this way, when the previous request goes to 192.168.**.252:8070, we can make the next request go to 192.168.**.253:8071, which can reduce the pressure on our server.

Now there is a problem, how to send the Request issued by USer to different servers? At this time, Nginx is needed.

Now I will introduce the .net web service published on Nginx.

Nginx is an unzipped package. We only need to unzip it on the Nginx server, modify the configuration file, and Nginx will be installed.

Nginx installation and configuration

Nginx is extracted to the root directory of the C drive:

We can see the file directory under Nginx, here we need to modify the conf folder The nginx.conf file under:

A rough explanation:

The file looks like this:

<span style="font-size:18px;">#user  nobody;
worker_processes  1;#工作进程的个数，可以配置多个

#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;#单个进程最大连接数（最大连接数=连接数*进程数）
}


#设定http服务器，利用它的反向代理功能提供负载均衡支持
http {
    include       mime.types; #文件扩展名与文件类型映射表
    default_type  application/octet-stream;#默认文件类型

    #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
    #                  '$status $body_bytes_sent "$http_referer" '
    #                  '"$http_user_agent" "$http_x_forwarded_for"';

    #access_log  logs/access.log  main;

    sendfile        on;#开启高效文件传输模式，sendfile指令指定nginx是否调用sendfile函数来输出文件，对于普通应用设为 on，如果用来进行下载等应用磁盘IO重负载应用，可设置为off，以平衡磁盘与网络I/O处理速度，降低系统的负载。注意：如果图片显示不正常把这个改成off。
    #tcp_nopush     on;

    #keepalive_timeout  0;
    keepalive_timeout  65; #长连接超时时间，单位是秒

    gzip  on;#启用Gizp压缩
	
	#服务器的集群
    upstream  netitcast.com {  #服务器集群名字  		
		server    127.0.0.1:8030 weight=1;		#服务器配置   weight是权重的意思，权重越大，分配的概率越大。
		server    127.0.0.1:8040 weight=1;		
	}	

	#当前的Nginx的配置
    server {
        listen       8090;#监听80端口，可以改成其他端口
        server_name  localhost;##############	当前服务的域名

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

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

	location / {
            proxy_pass http://netitcast.com;
            proxy_redirect default;
        }
		#location ~ \.(jpg|png|jpeg|bmp|gif|swf|css)$
        #{
         
         #   expires 30d;
          #   root /nginx-1.4.7;#root:
           # break;
        #}

		

        #error_page  404              /404.html;

        # redirect server error pages to the static page /50x.html
        #
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }

        # proxy the PHP scripts to Apache listening on 127.0.0.1:80
        #
        #location ~ \.php$ {
        #    proxy_pass   http://127.0.0.1;
        #}

        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
        #
        #location ~ \.php$ {
        #    root           html;
        #    fastcgi_pass   127.0.0.1:9000;
        #    fastcgi_index  index.php;
        #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
        #    include        fastcgi_params;
        #}

        # deny access to .htaccess files, if Apache's document root
        # concurs with nginx's one
        #
        #location ~ /\.ht {
        #    deny  all;
        #}
    }


    # another virtual host using mix of IP-, name-, and port-based configuration
    #
    #server {
    #    listen       8000;
    #    listen       somename:8080;
    #    server_name  somename  alias  another.alias;

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


    # HTTPS server
    #
    #server {
    #    listen       443;
    #    server_name  localhost;

    #    ssl                  on;
    #    ssl_certificate      cert.pem;
    #    ssl_certificate_key  cert.key;

    #    ssl_session_timeout  5m;

    #    ssl_protocols  SSLv2 SSLv3 TLSv1;
    #    ssl_ciphers  HIGH:!aNULL:!MD5;
    #    ssl_prefer_server_ciphers   on;

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

}
</span>

What needs to be modified:

<span style="font-size:18px;">	#服务器的集群
    upstream  netitcast.com {  #服务器集群名字  		
		server    127.0.0.1:8030 weight=1;		#服务器配置   weight是权重的意思，权重越大，分配的概率越大。
		server    127.0.0.1:8040 weight=1;		
	}	

	#当前的Nginx的配置
    server {
        listen       8090;#监听80端口，可以改成其他端口
        server_name  localhost;##############	当前服务的域名

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

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

	location / {
            proxy_pass http://netitcast.com;
            proxy_redirect default;
        }
</span>

We can see that the server cluster Name:

server ip: port

We will publish our project on the ip and port of the server, and we can write the ip and port number here. The following weight is the weight, that is, if both servers are 1, the request is 1:1. The first request is accessed on port 8030, and the second request is accessed on port 8040.

server{ listen 8090} is the listening port number of nginx. That is, we only need to access the IP and port number of the Nginx server to access the services in our server cluster.

The principle of Nginx:

Nginx is configured. In the next blog, we will publish our Web service to our IIS.

Reference blog: http://blog.csdn.net/zhanghan18333611647/article/details/50282951

The above introduces Nginx + IIS + Web front end (Spring MVC) - load balancing (1), including aspects of the content. I hope it will be helpful to friends who are interested in PHP tutorials.