How to Monitor and Manage Ephemeral Storage on Windows EKS Nodes to Prevent Pod Evictions?

Question

I'm running a Kubernetes cluster on Amazon EKS with Windows worker nodes, and recently I encountered an issue where a pod was evicted due to ephemeral-storage pressure. Here's the eviction message I received:
The node was low on resource: ephemeral-storage. Threshold quantity: 12884587212, available: 12561252Ki. Container retailhub-api was using 13588313020, request is 0, has larger consumption of ephemeral-storage.

I know we can set ephemeral-storage requests and limits in the pod spec, but what’s the recommended way to choose those values when actual usage varies?

Antony R. Goetzschel · Answer

Hello,

I understand that if you are having problems with Ephmeral storage, you are writing some logs or temp files to disk. To solve this, I recommend that you simply assign a PVC to your pod or use S3 as a temp storage layer.

Regards
Antony

How to Monitor and Manage Ephemeral Storage on Windows EKS Nodes to Prevent Pod Evictions?

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