[jira] [Created] (YUNIKORN-1765) [Umbrella] Support for K8s vertical auto scaling

["Peter Bacsko (Jira)" <ji...@apache.org>]

Peter Bacsko created YUNIKORN-1765:
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             Summary: [Umbrella] Support for K8s vertical auto scaling
                 Key: YUNIKORN-1765
                 URL: https://issues.apache.org/jira/browse/YUNIKORN-1765
             Project: Apache YuniKorn
          Issue Type: Improvement
          Components: core - scheduler, shim - kubernetes
            Reporter: Peter Bacsko


The vertical pod autoscaler ([https://github.com/kubernetes/autoscaler/tree/master/vertical-pod-autoscaler]) is a project which tracks the memory/cpu of pods and updates their resource limits/requests based on the monitored usage over time.

From the Github docs: _"Vertical Pod Autoscaler (VPA) frees users from the necessity of setting up-to-date resource limits and requests for the containers in their pods. When configured, it will set the requests automatically based on usage and thus allow proper scheduling onto nodes so that appropriate resource amount is available for each pod. It will also maintain ratios between limits and requests that were specified in initial containers configuration._

_It can both down-scale pods that are over-requesting resources, and also up-scale pods that are under-requesting resources based on their usage over time."_

Currently, the "auto" (in-place) updater is not available, it only works with "recreate". However, it is only a matter of time and "auto" will work. Currently, Yunikorn can not handle pod updates of this kind and the scheduler core part isn't ready for this, either.

This ticket is intended to track the necessary tasks to support VPA.



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