实现主从数据库同步

http://369369.blog.51cto.com/319630/790921/

http://blog.csdn.net/funkri/article/details/17099915

https://yq.aliyun.com/product/1048?utm_content=se_369560

http://blog.csdn.net/huaduotongtong/article/details/50373921