windows 下 Nginx + tomcat 负载均衡配置

Nginx 已经是目前公认的效率很高的代理服务，同时可以用来做负载均衡。

由于项目目前只有一台centOS的服务器，无法用来测试，所以打算找下Nginx windows下版本；

http://www.kevinworthington.com/nginx/win32/

以上为win32的版本

用户访问 sp.imichat.com 均衡到 10.10.10.181:8080; 10.10.10.181:8081; 10.10.10.181:8082; 这3台服务器

配置Nginx的nginx.conf

http {}增加如下内容


    upstream sp.imichat.com {
      server 10.10.10.181:8080;
      server 10.10.10.181:8081;
      server 10.10.10.181:8082;
    }


server {} 修改异侠信息：


listen 80;
server_name sp.imichat.com;

#charset koi8-r;

#access_log logs/host_access_log main;

location / {
proxy_pass http://sp.imichat.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;
}

access_log logs/sp.imichat.com.log combined;
[/code]

启动181上的3个tomcat，修改tomcat首页加入端口信息，以用来清晰看到当前分配到那台tomcat

启动Nginx，访问 http://sp.imichat.com/

可看到请求被发送到3台服务器。

抓http包可看到request为

GET / HTTP/1.1
Host: sp.imichat.com
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.9.0.4) Gecko/2008102920 Firefox/3.0.4
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-us,zh-cn;q=0.5
Accept-Encoding: gzip,deflate
Accept-Charset: gb2312,utf-8;q=0.7,*;q=0.7
Keep-Alive: 300
Connection: keep-alive
Cookie: JSESSIONID=A75E09D2EBF769A7BD95195E29DE87DE; key=1227008000183; memberName=admin; memberType=%7C%u8D85%u7EA7%u7BA1%u7406%u5458%7C
Pragma: no-cache
Cache-Control: no-cache


response:


HTTP/1.1 200 OK
Server: nginx/0.7.21-win32
Date: Tue, 18 Nov 2008 12:12:33 GMT
Content-Type: text/html
Connection: keep-alive
ETag: W/"8157-1227009260637"
Last-Modified: Tue, 18 Nov 2008 11:54:20 GMT
Content-Length: 8157