这个硬件7-8M以内没啥大问题? 你可真会大嘴巴跑火车！你有什么数据支持
这是人家运行的实际数据： http://highscalability.com/blog/2014/2/26/the-whatsapp-architec
Peaked at 2.8M connections per server
571k pkts/sec, >200k dist msgs/sec
Made some memory optimizations so VM load was down to 70%.
Tried 3 million connections, but failed.
