nginx负载均衡高级策略-upstream

暂时没空研究，先记录下：

http://tech.ddvip.com/2012-12/1356102478187534.html

http://www.tuicool.com/articles/Zf6r6fv

写C语言控制IP访问策略，

upstream log每一个请求响应请求时间，awk（linux自带）统计log，upstreamtime

http://www.2cto.com/shouce/Nginx/chapter_5.html

http://onlyzq.blog.51cto.com/1228/557848/

https://www.nginx.com/resources/wiki/

https://www.nginx.com/resources/wiki/start/topics/examples/loadbalanceexample/

http://my.oschina.net/u/574366/blog/157784

http://my.oschina.net/sphl520/blog/203221

http://my.oschina.net/longniao/blog/69481

http://my.oschina.net/kt431128/blog/375261

http://my.oschina.net/51stick/blog/465268