Redshift Serverless default base capacity was inflating one client's AWS bill by about $2,700 a month

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A client who launched a new Amazon Redshift Serverless workgroup saw its Redshift charges come in at nearly four times the amount it had budgeted. The cause was the default base capacity of 128 RPUs that the console assigned at creation, which runs continuously whether or not queries are being executed. The article explains that RPUs are billed per second with a 60-second minimum, and that base capacity is adjustable within set steps tied to storage limits. It recommends reviewing system usage views over a representative week before changing the setting. Lowering the base capacity via the AWS CLI, or using AI-driven scaling with a price-performance target, is presented as a way to control costs for spiky workloads.

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ProgrammingDEV Community ·

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