Scaling webapps

一、常规方式

二、Reverse Proxy

三、Load Balancer

四、Database Cluster

五、Micro Services

六、Cache & CDN

七、Message Queue

八、Sharding

九、Load-balancing the load-balancer

参考：

https://arcentry.com/blog/scaling-webapps-for-newbs-and-non-techies/