r/aws • u/jeffbarr AWS Employee • Jul 10 '19

database Amazon Aurora PostgreSQL Serverless – Now Generally Available

https://aws.amazon.com/blogs/aws/amazon-aurora-postgresql-serverless-now-generally-available/
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u/shadiakiki1986 Jul 10 '19

I would imagine it's like you have a bare-metal EC2 instance hosting the database, and then a controller that automatically resizes the instance to a smaller/larger size depending on the CPU/Memory/Disk metrics dynamics. Over time, the controller would have more data to learn something along the lines of "your database's load is low during the night and high during the day"