windows第七层负载均衡_基于IIS的ARR负载均衡详解

程序员文章站 2023-03-25 19:50:33

载均衡有很多种方法，有硬件负载均衡，软件负载均衡，还可以从域名解析下手。不过，今天只讲软件负载均衡。软件负载均衡一般分两种，从网络协议来讲（tcp/ip），主要集中...

载均衡有很多种方法，有硬件负载均衡，软件负载均衡，还可以从域名解析下手。

不过，今天只讲软件负载均衡。

软件负载均衡一般分两种，从网络协议来讲（tcp/ip），主要集中在第四层和第七层进行负载均衡。

第四层就是基于ip进行负载均衡。后面还有一篇文章讲这个。

第七层就是应用层。比如各种的web服务器。今天就讲讲iis的负载均衡。

第七层的web负载均衡，很多web服务器都支持，比如iis，nginx，apache等。现在主要讲一下windosw下iis如何使用负载均衡

iis使用arr反向代理，实现负载均衡

什么是正向代理？

代理服务器大家可能听说过，比如我们说的“*”。就是使用代理服务器，请求经过代理服务器转到目的服务器。这是一个正向代理。用户知道自己使用代理，并且充许用户隐藏客户端自身。

什么是反向代理？

请求同样经过代理服务器转到目的服务器，目的服务器返回给代理服器，代理返回给客户端。不同的时候，客户并不知道，访问的是一个代理服务器。客户认为他在访问目的服务器。

两者的区别基本在于，正向代理是发生在客户端。反向代理是发生在服务端。

首先，我们先安装一个web平台安装程序

打开web平台安装程序，搜索arr

windows第七层负载均衡_基于IIS的ARR负载均衡详解

写webapi程序

[route("api/[controller]")]
public class homecontroller : controller
{
 // get: api/<controller>
 [httpget,route("getuserchat")]
 public async task<actionresult> getuserchat()
 {
 var collection = new mongohelper().getcollection<oachat>("oachat");
 var chatitems =await collection.find(n => n.chattype == 2).limit(5).tolistasync();
 return apijsonformat.getjsonresult(chatitems);
 }
}

返回结果

{"resultcode":1000,"message":"成功","detailerror":null,"data":[{"id":"595225a5bbccc61ff88e89a7","chatname":"testttt","chattype":2,"createruserid":76,"members":[],"createtime":"2017-06-27 17:30:13","lastchattime":"2017-11-10 17:43:17","lastchattext":"[定位]","isdisbanded":false},{"id":"5952445ebbccc71ff8adf671","chatname":"测试2","chattype":2,"createruserid":13,"members":[],"createtime":"2017-06-27 19:41:18","lastchattime":"2017-06-27 19:48:47","lastchattext":"行","isdisbanded":true},{"id":"5952463dbbccc71ff8adf67d","chatname":"巡视频么么哒哒","chattype":2,"createruserid":13,"members":[],"createtime":"2017-06-27 19:49:17","lastchattime":"2017-12-20 19:47:17","lastchattext":"[定位]","isdisbanded":false},{"id":"59524c0ebbccc71ff8adf6ae","chatname":"rrrffff","chattype":2,"createruserid":13,"members":[],"createtime":"2017-06-27 20:14:06","lastchattime":"2017-06-27 20:34:54","lastchattext":"6565","isdisbanded":false},{"id":"59531cdfbbccc414e8f6769f","chatname":"都纷纷fee俄方热热","chattype":2,"createruserid":76,"members":[],"createtime":"2017-06-28 11:05:03","lastchattime":"2017-06-28 11:05:13","lastchattext":"123","isdisbanded":true},{"id":"59531de5bbccc414e8f676a1","chatname":"天赋过人托管人","chattype":2,"createruserid":76,"members":[],"createtime":"2017-06-28 11:09:25","lastchattime":"2017-06-28 11:09:33","lastchattext":"呃呃呃","isdisbanded":true},{"id":"59531e40bbccc414e8f676a3","chatname":"热热","chattype":2,"createruserid":76,"members":[],"createtime":"2017-06-28 11:10:56","lastchattime":"2017-06-28 17:58:41","lastchattext":"333","isdisbanded":false},{"id":"59532140bbccc414e8f676a6","chatname":"会厌结核有机会好好","chattype":2,"createruserid":76,"members":[],"createtime":"2017-06-28 11:23:44","lastchattime":"2017-06-28 11:24:40","lastchattext":"eee","isdisbanded":true},{"id":"595321d3bbccc414e8f676a8","chatname":"656565656","chattype":2,"createruserid":76,"members":[],"createtime":"2017-06-28 11:26:11","lastchattime":"2017-06-28 18:50:08","lastchattext":"ggg","isdisbanded":false},{"id":"5954d0eebbccc40fecbea435","chatname":"r","chattype":2,"createruserid":76,"members":[],"createtime":"2017-06-29 18:05:34","lastchattime":null,"lastchattext":null,"isdisbanded":false}]}

//设置arr

192.168.99.5 //代理服务器
192.168.99.6 //目的服务器
192.168.99.7 //目的服务器
192.168.99.8 //目的服务器
192.168.99.10 //目的服务器
192.168.99.11 //目的服务器
192.168.99.12 //目的服务器
192.168.99.13 //目的服务器

首先给服务器安装net core 运行环境

dotnetcore.2.0.5-windowshosting 安装包内置sdk和windowshosting，直接安装这个，安装成功之后，要重启服务器才能生效。然后部署web就可以访问了

选择无托管代码

windows第七层负载均衡_基于IIS的ARR负载均衡详解