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Tag: Autoscaling

Problems related to Autoscaling, such as Autoscaling timeout, or Autoscaling connection timeout.

IDTitleDescriptionCategoryTechnologyTags
prequel-2025-0079
Medium
Impact: 3/10
Mitigation: 3/10
AWS Cluster Autoscaler Access Denied**Cluster Autoscaler** tries to fetch node-group metadata to decide whether it can scale a workload-affinityed pod. The call to the EKS control plane fails with ``` Failed to get labels from EKS DescribeNodegroup API for nodegroup <name> … AccessDeniedException: User <ARN> is not authorized to perform: eks:DescribeNodegroup on resource: arn:aws:eks:<region>:<acct>:nodegroup/… ``` Once the error is hit the Autoscaler marks the node-group **Not-Ready for scaling actions**, so pending pods remain unscheduled and scale-down decisions are skipped.AWS Problemsaws-cluster-autoscalerAWSAutoscaling