[jira] [Created] (YUNIKORN-3515) [Core] Fix multi-application victim overwrite and ghost notifications in quota preemption

["Hedger Lai (Jira)" <ji...@apache.org>]

Hedger Lai created YUNIKORN-3515:
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             Summary: [Core] Fix multi-application victim overwrite and ghost notifications in quota preemption
                 Key: YUNIKORN-3515
                 URL: https://issues.apache.org/jira/browse/YUNIKORN-3515
             Project: Apache YuniKorn
          Issue Type: Sub-task
          Components: core - scheduler
            Reporter: Hedger Lai
            Assignee: Hedger Lai


In QuotaPreemptionContext.preemptVictims() (quota_preemptor.go)

1. Multi-app victim overwrite: preemptedVictims is overwritten on each application iteration instead of appended. When a queue runs multiple applications, victims from all prior applications are lost from the result structure and parent queue aggregations.
2. Ghost release notification: When an allocation is already released, the full original victims slice is still passed to notifyRMAllocationReleased, triggering redundant release events to the shim for already-released pods.
3. Mismatched logger tag: The warning log uses SchedRequiredNodePreemption instead of SchedQuotaChangePreemption.

Fix:
 - Append successfully preempted victims across applications to preemptedVictims.
 - Only notify RM of allocations that were successfully marked as preempted.
 - Accumulate claimedResource only for successfully preempted victims.
 - Correct the logger tag to SchedQuotaChangePreemption.



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