Amazon Aurora MySQL 5.7 也可以上 Global Database 了

AWSAmazon Aurora MySQL 5.7 版本推出了 Amazon Aurora Global Database:「Aurora Global Database is Now Supported on Amazon Aurora MySQL 5.7」。

看起來 MySQL 系的 Global Database 就是跨區的 master-slave 架構 (所以標榜降低了 read latency,但沒有提到 write latency):

An Amazon Aurora Global Database is a single database that spans multiple AWS regions, enabling low latency global reads and disaster recovery from region-wide outages.

另外可以看到是 1 秒,所以應該是 async replication:

Aurora Global Database replicates writes in the primary region with typical latency of <1 second to secondary regions, for low latency global reads.

然後可以跨區切換:

In disaster recovery situations, you can promote the secondary region to take full read-write responsibilities in under a minute.

看了一下好像不用多付服務費用,就是各區自己的費用,加上傳輸的費用而已,看起來是個還不錯的服務?

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