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AKS Learn feedback: does HPA really need pod/container requests & limits? #123922

Open mikaelweave opened 2 months ago

mikaelweave commented 2 months ago

Type of issue

Outdated article

Feedback

Looking at this sentence below that originated in some form 7 years ago in the docs:

To use the horizontal pod autoscaler, all containers must have defined CPU requests and limits, and pods must have specified requests.

Do you actually need CPU requests + limits for containers and do pods need specified requests in a general sense? This sentence seems to apply to all HPA scenarios. Are requests/limits required to make the HPA function?

Looking at the kubernetes docs for HPA, it seems limits aren't required and requests are only required if using average utilization.

Page URL

https://learn.microsoft.com/en-us/azure/aks/tutorial-kubernetes-scale?tabs=azure-cli#autoscale-pods

Content source URL

https://github.com/MicrosoftDocs/azure-docs/blob/main/articles/aks/tutorial-kubernetes-scale.md

Author

@schaffererin

Document Id

a113b8e9-259a-2a65-2e54-a2661c78ddb5

Document Details

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TPavanBalaji commented 2 months ago

@mikaelweave Thank you for bringing this to our attention. I've delegated this to content author, who will review it and offer their insightful opinions.