不停库不锁表在线主从配置 http://seanlook.com/2015/12/14/mysql-replicas/
主从不同步 http://www.rfyy.net/archives/2309.html http://blog.51cto.com/storysky/259280
关于 auto_increment
https://blog.csdn.net/leshami/article/details/39779509 http://www.cnblogs.com/ygqygq2/p/6045279.html
mysql-proxy 实现读写分离 http://blog.51cto.com/zzclinux/1980487
mysql-proxy类似的产品有：
mycat 基于阿里的开源软件cobar，官网 www.mycat.io https://my.oschina.net/ruoli/blog/1789370
mycat实现分库分表 https://www.cnblogs.com/joylee/p/7513038.html
atlas 出自于360，不维护不更新了
https://blog.csdn.net/AnPHPer/article/details/80566385
mysql环形主从 http://ask.apelearn.com/question/11437
mysql架构演变
http://www.aminglinux.com/bbs/thread-8025-1-1.html
MHA架构
http://blog.51cto.com/xiaoshuaigege/2060768
比较复杂的mysql集群架构 http://ask.apelearn.com/question/17026
