Nginx 已經(jīng)是目前公認(rèn)的效率很高的代理服務(wù)，同時可以用來做負(fù)載均衡。
由于項(xiàng)目目前只有一臺centOS的服務(wù)器，無法用來測試，所以打算找下Nginx windows下版本；
http://www./nginx/win32/
以上為win32的版本
用戶訪問 sp. 均衡到 10.10.10.181:8080; 10.10.10.181:8081; 10.10.10.181:8082; 這3臺服務(wù)器
配置Nginx的nginx.conf
http {}增加如下內(nèi)容
upstream sp. {
server 10.10.10.181:8080;
server 10.10.10.181:8081;
server 10.10.10.181:8082;
}
server {} 修改異俠信息：
listen 80;
server_name sp.;
#charset koi8-r;
#access_log logs/host_access_log main;
location / {
proxy_pass http://sp.;
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..log combined;
[/code]
啟動181上的3個tomcat，修改tomcat首頁加入端口信息，以用來清晰看到當(dāng)前分配到那臺tomcat
啟動Nginx，訪問 http://sp./
可看到請求被發(fā)送到3臺服務(wù)器。
抓http包可看到request為
GET / HTTP/1.1
Host: sp.
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
