【介绍G1 GC的】http://blog.csdn.net/renfufei/article/details/41897113
http://workman666.iteye.com/blog/2348863
http://www.flyne.org/article/204
http://www.flyne.org/article/190/2
http://www.flyne.org/article/222
http://www.flyne.org/article/199
http://www.flyne.org/article/216
http://storm.apache.org/releases/current/Trident-API-Overview.html
http://storm.apache.org/releases/current/