Amazon RDS Enhances IAM Database Authentication with Connection Rate Scaling

Amazon RDS IAM Database Authentication Enhancements

Amazon RDS now offers dynamic connection scaling for IAM database authentication, allowing connection rates to scale with instance resources. This update enables enterprise workloads to leverage IAM authentication for high-volume connection patterns.

The number of new IAM authentication requests your instance can handle depends on available resources and workload characteristics. For optimal performance, reusing IAM user or IAM assumed role principals to generate authentication tokens, or reusing the authentication tokens themselves, is recommended when possible.

What to do

• Reuse IAM user or IAM assumed role principals to generate authentication tokens.
• Reuse authentication tokens when possible for optimal performance.

This update is available in all AWS Regions, including the AWS GovCloud (US) Regions, where IAM database authentication is supported for Amazon Aurora and Amazon RDS database engines including PostgreSQL, MySQL, and MariaDB.

Source: AWS release notes

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