Amazon EMR · Finder + guided fix
EMR Enable Managed Scaling
EnableManaged Scaling
Enable managed scaling on Amazon EMR clusters to optimize instance usage and reduce costs. CloudFix identifies EMR clusters and enables scaling.
What happens, in order.
Finder · read-only
Finds the opportunity
Scans your connected accounts with a read-only role. It can see resource metadata and usage; it can’t change anything.
You
Review in Recommendations
It appears in your Recommendations view with what it would save.
Guided fix
You make the change
You apply it yourself, following the fix’s step-by-step instructions; the write-up below explains it.
Finder role
Read-only. It can see resource metadata and usage. It can’t change anything.
Fixer role
Not used here: this one is a guided fix, so the change is yours to make.
Saves by
Amazon EMR clusters can benefit from cost optimization by enabling managed scaling. Managed scaling automatically resizes your cluster for best performance at the lowest possible cost. This finder identifies EMR clusters where managed scaling could be enabled to optimize costs, focusing on clusters using Task instances.
Amazon EMR clusters can benefit significantly from cost optimization by enabling managed scaling. This CloudFix Finder/Fixer identifies EMR clusters that could have managed scaling enabled to optimize costs, helping you reduce expenses while maintaining optimal performance.
Overview
Amazon EMR clusters often run with static capacity settings, causing unnecessary costs during periods of low processing demand. CloudFix identifies EMR clusters that could benefit from enabling managed scaling, which automatically resizes your cluster for best performance at the lowest possible cost. Savings are estimated from how the Task instances in the cluster are actually used, with users typically saving up to 19% on their EMR costs.
AWS Services Affected
How It Works
CloudFix works read-only from your cost and usage data and your EMR cluster configuration to find clusters, on EMR releases that support managed scaling, that are not yet taking advantage of it and where enabling it would meaningfully reduce cost.
This is a manual fixer that requires user intervention to implement. The CloudFix dashboard will display recommendations for implementing managed scaling, and users must manually apply these recommendations by updating their EMR cluster configurations.
Implementation Details
- Review the recommendation in the CloudFix dashboard
- Identify the EMR cluster that would benefit from managed scaling
- Update the cluster configuration to enable managed scaling through the AWS Management Console, AWS CLI, or AWS CloudFormation
- Specify appropriate minimum and maximum capacity units for your workload
- Monitor the cluster’s performance after enabling managed scaling
When implementing managed scaling, consider:
- Performance impact: Better resource utilization and improved performance during peak processing times
- Data integrity: No direct impact on data, but monitoring is essential
- Security considerations: No direct security concerns, but ensure configurations remain consistent
FAQ
Q: What is EMR Managed Scaling?
A: Amazon EMR Managed Scaling automatically resizes your cluster for best performance at the lowest possible cost. It adds and removes instances or units in your cluster based on workload.
Q: Which EMR cluster versions support managed scaling?
A: Compatible versions are 5.30.2, 5.31.1, 5.32.1, 5.33.1 and higher, and 6.x releases 6.1.1, 6.2.1, 6.3.1 and higher.
Q: Can I customize the scaling behavior?
A: Yes, you can specify minimum and maximum capacity limits, as well as on-demand and spot instance allocation strategies.
Q: Will enabling managed scaling affect my running jobs?
A: EMR managed scaling is designed to minimize disruption to running jobs. It scales down by removing idle instances and ensures that nodes running tasks are not terminated.
Q: Is there an additional cost for using EMR managed scaling?
A: No, there is no additional charge for using EMR managed scaling. You only pay for the EC2 instances and EMR service when they are running.
Related Resources
- CloudFix’s Newest Addition: The EMR Instance Optimizer
- EMR Enable Managed Scaling Support Article
- Using managed scaling in Amazon EMR
- Understanding managed scaling metrics in Amazon EMR
- Introducing Amazon EMR Managed Scaling
- Amazon EMR Features
Ready to start saving on AWS? See how much you could cut from your cloud bill with a free cost optimization assessment, or explore CloudFix automated Finder/Fixers that eliminate waste across 30+ AWS services.
Related Articles
See whether this one applies to your account.
A free savings assessment reports which fixers can be applied to your environment. Results typically within 24 hours.