负载均衡+session共享(memcached-session-manager实现)

http://www.cnblogs.com/youzhibing/p/5094460.html

http://www.cnblogs.com/wangjunqiao/p/4688689.html

nginx+tomcat+redis负载均衡及session共享

http://www.cnblogs.com/cotty/p/4991175.html

nginx 负载均衡，多站点共享Session

http://www.cnblogs.com/red-fox/archive/2012/11/05/2755271.html