Cluster Autoscaler error in EKS node group comparison of missing capacity

[chriswvu]

Which component are you using?:

cluster-autoscaler

What version of the component are you using?:

Component version: 1.30

What k8s version are you using (kubectl version)?: 1.30

kubectl version Output

$ kubectl version

What environment is this in?: AWS / EKS

What did you expect to happen?:

With the --balance-similar-node-groups flag expected that nodes would be added balanced across multiple node groups.

The node groups are configured with the exact same instance type. t3.medium

What happened instead?:

Node were created in a single node group. Getting errors in the logs of missing capacity like:

compare_nodegroups.go:126] nodes template-node-for-eks-6008110688907257595 and template-node-for-eks-1601417514495495517 are not similar, missing capacity hugepages-1Gi
compare_nodegroups.go:126] nodes template-node-for-eks-6008110688907257595 and template-node-for-eks-4358223196786636438 are not similar, missing capacity ephemeral-storage
compare_nodegroups.go:132] nodes template-node-for-eks-1601417514495495517 and template-node-for-eks-6008110688907257595 are not similar, memory not within tolerance

How to reproduce it (as minimally and precisely as possible):

Anything else we need to know?:

[adrianmoisey]

/area cluster-autoscaler

[chriswvu]

Should have also mentioned that the condition is seen when scaling from 0.