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Amazon EMR Managed Scaling is now available in 7 additional AWS regions

Published
December 12, 2025
https://aws.amazon.com/about-aws/whats-new/2025/12/amazon-emr-managed-scaling-additional-regions

Amazon EMR Managed Scaling Now Available in Additional Regions

Amazon EMR Managed Scaling is now available for EMR on EC2 customers in the Asia Pacific (Malaysia, New Zealand, Taipei, Thailand), Canada West (Calgary), Mexico (Central), and US Gameday Northeast (Illinois) AWS Regions. This feature automatically resizes the EC2 instances in your EMR cluster for optimal performance and cost efficiency.

With Amazon EMR Managed Scaling, you can specify minimum and maximum compute limits for your clusters. The service constantly monitors workload-related metrics and uses an algorithm to optimize cluster size, scaling up during peaks and down during idle periods. This reduces costs and optimizes cluster capacity for performance.

Amazon EMR Managed Scaling is also compatible with Amazon EC2 Spot Instances, allowing you to take advantage of unused EC2 capacity at a discount.

What to do

Source: AWS release notes




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