record the norminated node for pod and consider it first in next cycle

[lowang-bh]

The norminated node is the node a pipelined task assigned to.

In those cases a task may be pipelined to a norminated node:

• node has terminating pod and resource is in releasing state, its pod can be pipelined to this node in allocate action
• the task has evicted other pod on that node and is suitable on that node, its pod will be pipelined to that node in preempt/reclaim action

What would you like to be added:

1. record the pipelined node for a task which has evicted other task and suitable on that node
2. check this node is suitable for this task in next scheduling cycle firstly, if predicating returns success, just assign this task to it
3. if a task has a norminating node, it does not need to do eviction in preempt/reclaim.

Why is this needed:

In the preempt/reclaim actions, task that can not be allocated in allocate action will try to evict other task and then pipeline to the proper node. And we can record it so that we can consider it firstly in the next scheduling cycle, to save time spent on predicating.

[Monokaix]

So how to do that? just reduce availabel node nums to predict the nominated node?

[lowang-bh]

/good-first-issue

[volcano-sh-bot]

@lowang-bh:
This request has been marked as suitable for new contributors.

Please ensure the request meets the requirements listed here.

If this request no longer meets these requirements, the label can be removed
by commenting with the /remove-good-first-issue command.

In response to this:

/good-first-issue

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[muskan2622]

/assign

[JesseStutler]

@muskan2622 Hi, do you still work on this? Could you assign to me? I'm interested to figure out it.

[lowang-bh]

@muskan2622 Hi, do you still work on this? Could you assign to me? I'm interested to figure out it.

I think you can go on.

[muskan2622]

Hey m working on it. Please consider some other issues

…

On Mon, 9 Sep 2024, 19:27 dragon-fly, ***@***.***> wrote: @muskan2622 <https://github.com/muskan2622> Hi, do you still work on this? Could you assign to me? I'm interested to figure out it. I think you can go on. — Reply to this email directly, view it on GitHub <#3491 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AUFAC3ZZS2V77D42MJGDSWLZVWSLPAVCNFSM6AAAAABIHRZFK6VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDGMZYGIYDANBWHE> . You are receiving this because you were mentioned.Message ID: ***@***.***>

[JesseStutler]

@muskan2622 Hi, you still work on this? But why did you remove the assignment?

[muskan2622]

I thought it is merged.

[muskan2622]

/assign