[YUNIKORN-560] Yunikorn recovery deletes existing placeholders

• Type: Sub-task
• Status: Closed
• Priority: Blocker
• Resolution: Cannot Reproduce
• Component/s: shim - kubernetes
• Labels: recovery
• Assignee: Peter Bacsko
• Reporter: Kinga Marton
• Created: 10/Mar/21 09:39
• Updated: 07/Feb/23 22:54
• Resolved: 14/Apr/22 13:52

Description

On recovery, Yunikorn may intermittently delete placeholder pods. To reproduce, submit a gang job with minMembers > job parallelism (to guarantee that there are some placeholders running) and then delete yunikorn scheduler pod. 

After recovery, there may not be any placeholder pods remaining.