服务端高并发分布式架构演进之路 - 读书笔记

 https://mp.weixin.qq.com/s/BcLkbY0EFuML7sgIwQ0ocg


3.7 第六次演进：把大表拆分为小表


只要实时操作的表数据量足够小，请求能够足够均匀的分发到多台服务器上的小表，那数据库就能通过水平扩展的方式来提高性能。

显著增加了数据库运维的难度，对 DBA的 要求较高。数据库设计到这种结构时，已经可以称为分布式数据库。

MPP（大规模并行处理）
https://cloud.tencent.com/developer/news/835349


3.13 第十二次演进：引入企业服务总线 ESB 屏蔽服务接口的访问差异


通过 ESB 统一进行访问协议转换。应用统一通过 ESB 来访问后端服务，服务与服务之间也通过 ESB 来相互调用，以此降低系统的耦合程度。



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