Amazon Aurora 推出了兩包玩意，第一包是 Serverless，讓需要人介入的情況更少：「In The Works – Amazon Aurora Serverless」。
在 Serverless 的第一個重點是支援以秒計費：
Today we are launching a preview (sign up now) of Amazon Aurora Serverless. Designed for workloads that are highly variable and subject to rapid change, this new configuration allows you to pay for the database resources you use, on a second-by-second basis.
然後是極為快速的 auto-scaling：
The endpoint is a simple proxy that routes your queries to a rapidly scaled fleet of database resources. This allows your connections to remain intact even as scaling operations take place behind the scenes. Scaling is rapid, with new resources coming online within 5 seconds
這兩個組合起來，讓使用端可以除了在 Amazon EC2 上可以快速 scale 外，後端的資料庫也能 scale 了...
第二個是 Multi-master 架構：「Sign Up for the Preview of Amazon Aurora Multi-Master」。
Amazon Aurora Multi-Master allows you to create multiple read/write master instances across multiple Availability Zones. This enables applications to read and write data to multiple database instances in a cluster, just as you can read across Read Replicas today.
(話說我一直都誤以為 Aurora 是 R/W master...)
Anyway，這個功能不知道怎麼疊上去的... 不笑得會不會有嚴重的 distributed lock issue，反而推薦大家平常都寫到同一台 (像是 PXC 就會這樣)。
