KEP: time dependent job priority

[Gekko0114]

What type of PR is this?

/kind documentation
/kind api-change

What this PR does / why we need it:

KEP for #754

Special notes for your reviewer:

Thanks for your review.

Does this PR introduce a user-facing change?

NONE

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[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[Gekko0114]

@alculquicondor, @kerthcet, @tenzen-y, @trasc,

Thank you so much for your discussion.
I've created KEP. Could you review it?
Thanks,

[alculquicondor]

/assign @mwielgus

[tenzen-y]

I will check after the release of v0.4.

[mwielgus]

What about introducing just a priority/ordering annotation and keeping the updates outside of Kueue, in a simple controller? I can imagine quite a few different use cases for custom ordering in a queue and obviously not all of them can be added to the API and implemented.

[mwielgus]

This can make troubleshooting harder. In case of a mix of jobs with different workload priority class it will be impossible to tell what the current order of workloads actually is at the moment (without copying them to a spreadsheet or running some additional custom scripts).

[alculquicondor]

/ok-to-test

[mwielgus]

This can quickly become either insufficient or very cluttered. For example, I may want to have this logic outside of business hours and on weekends. Plus maybe deprioritise workloads that have been waiting for too long as their results may not actually be that relevant anymore. And so on.

[Gekko0114]

Hi @alculquicondor, @mwielgus,

Thanks for your comment.
I might not fully understand the recent discussion, so I would appreciate it if you could clarify.

I've seen the proposal for #973. Should we prioritize that proposal over this KEP?
Or is it possible to implement this KEP after considering your comments for improvement?

[alculquicondor]

Yes, I think we should start with #973 as a simpler version of this and wait for user feedback for one or two releases.

WDYT @kerthcet, since you initially proposed #754

[Gekko0114]

@alculquicondor ,
Sure, thanks. Then, I will keep this PR as it is without making any changes.

[kerthcet]

Yes, I think we should start with #973 as a simpler version of this and wait for user feedback for one or two releases.

WDYT @kerthcet, since you initially proposed #754

I left comments there.

[Gekko0114]

I will close this PR since workloadPriorityClass was merged