how to delete the saved checkpoint.

[shixinlishixinli]

i try to reinstall vpa and reinstall nginx.

but the vpa recommender is large form the beginning. i have set cpu-histogram-decay-half-life=1s in recommender-deployment.yaml and wait for one day , but the recommender is not became small.

how to delete the saved checkpoint ? i want to run vpa with a small recommender

I don't want the recommendation value to be consistently high. but now when the recommendation value become large. it will not be small when the pod cpu usage is small. i have already set cpu-histogram-decay-half-life=1s. but the recommendation value can not be smaller . do you have some suggesstions about it?

Best Lisa

[jbartosik]

Hi, did you try somewhat larger values of the cpu-histogram-decay-half-life flag? I'd recommend setting for example 10 minutes and seeing if that behaves more like what you want. Sample decay is implemented by multiplying weight of new sample by 2ⁿ, where n is number of cpu-histogram-decay-half-life elapsed since the previous sample (+handling for when this multiplier gets too high).

So with cpu-histogram-decay-half-life=1s we'll be increasing weights 2⁶⁰. I suspect this might break the sample decay mechanism.

[Shubham82]

@shixinlishixinli if your concern is resolved can we close this issue?

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/lifecycle stale

[Shubham82]

I'm Closing this issue, as there is no response. Please reopen it again if you still have any concerns.

[Shubham82]

/close

[k8s-ci-robot]

@Shubham82: Closing this issue.

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