[YUNIKORN-1990] Intra-queue preemption happens

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Component/s: core - scheduler
• Labels: pull-request-available
• Assignee: Rainie Li
• Reporter: Rainie Li
• Created: 15/Sep/23 17:09
• Updated: 01/Nov/23 23:50
• Resolved: 01/Nov/23 19:13

Description

Background

We noticed preemption happens for jobs within same queue. 

 

Test we have done

• Submitted job1 to root.test-queue.tier1 queue, queue allocated usage went higher than guaranteed resource. 
• Then submitted another Job2 to same queue, queue allocated usage decreased to lower than guaranteed resource. 
• Most executors of Job1 got preempted by Job2

Issue Links

• Blocked: YUNIKORN-1995 Preemption CheckPreemptionQueueGuarantee need to compare aggregated Victims with ask resource
• relates to: YUNIKORN-1988 Preemption happens when a queue lower than its guaranteed capacity
• links to: GitHub Pull Request #659