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Investigate Aurora serverless instances #1257

@ryanemerson

Description

@ryanemerson

Description

Aurora serverless is an auto-scaling variant of Aurora that can be used to simplify management and reduce costs.

The most basic deployments should allow a min and max ACU count to be defined, with the cluster auto-scaling between these limits based upon demand.

Unlike the t instances that we currently use in our Aurora deployments, Serverless supports the RDS Data API which can simplify management when executing tests using GH actions as it allows us to use the aws rds-data commands.

It also possible to define "mixed-configuration" clusters, where a traditional fixed instance is used for the writer and serverless is used for the reader instances. Thus allow predictability in normal operations, whilst reducing the costs of the backups

Out of Scope:

  • Aurora Limitless

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https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/aurora-serverless-v2.how-it-works.html

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