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Posted to issues@yunikorn.apache.org by "Craig Condit (Jira)" <ji...@apache.org> on 2024/01/26 22:30:00 UTC
[jira] [Updated] (YUNIKORN-2366) Update GetPodResources() to handle in-place pod resource updates
[ https://issues.apache.org/jira/browse/YUNIKORN-2366?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Craig Condit updated YUNIKORN-2366:
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Summary: Update GetPodResources() to handle in-place pod resource updates (was: Update GetPodResources() to properly handle in-place pod resource updates)
> Update GetPodResources() to handle in-place pod resource updates
> ----------------------------------------------------------------
>
> Key: YUNIKORN-2366
> URL: https://issues.apache.org/jira/browse/YUNIKORN-2366
> Project: Apache YuniKorn
> Issue Type: Sub-task
> Components: shim - kubernetes
> Reporter: Craig Condit
> Assignee: Craig Condit
> Priority: Major
> Labels: pull-request-available
>
> The *GetPodResources()* function in the shim is used to convert a Pod's requested resources to a list of si.Resource objects. However, this is no longer sufficient once the *InPlacePodVerticalScaling* feature flag is enabled (or it becomes default in a future Kubernetes release).
> This function needs to also take into account the allocated resources in the {{Pod.Status.ContainerStatuses[].AllocatedResources}} collection in combination with {{Pod.Status.Resize}} to determine what the real resource utilization is. According to the [spec|https://github.com/kubernetes/enhancements/blob/master/keps/sig-node/1287-in-place-update-pod-resources/README.md], {{AllocatedResources}} should be used instead of {{Pod.Spec.Containers[].Resources.Requests}} unless it is not present. A special case also exists where Pod.Status.Resize is set to {{InProgress}} – in this case the larger of each resource should be used to avoid over-allocating resources on a node.
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