Remove commit mechanism for pipeline in allocate action

[sivanzcw]

/kind feature

Description:

The allocate action uses the commit mechanism. Only when the job meets the requirements of gang, the operations performed in the allocate action will be executed. Otherwise, all actions will be rolled back.

The commit mechanism in allocate action for pipeline action should be canceled:

• When judging whether the job meets the requirements of gang, it does not calculate the task with pipelined state. That is to say, in the commit mechanism, th pipeline action is not considered.

• When the preempt action or the reclaim action is enabled, in the previous scheduling period, the pod named poda with pending state successfully evicts a running pod named podb, and poda was pipelined to the node where the podb is running. In the next cycle, when the allocate action is performed. Because the job where poda is located does not meet the requirements of gang, and cannot perform the pipelined action, in this scheduling period, poda is still in the pending state, and will evict other pods.

[k82cn]

I think we should cancel the pipeline if gang scheduling failed; the releasing resource should be reused by other jobs.

[stale]

Hello 👋 Looks like there was no activity on this issue for last 90 days.
Do you mind updating us on the status? Is this still reproducible or needed? If yes, just comment on this PR or push a commit. Thanks! 🤗
If there will be no activity for 60 days, this issue will be closed (we can always reopen an issue if we need!).

[stale]

Closing for now as there was no activity for last 60 days after marked as stale, let us know if you need this to be reopened! 🤗