[YARN-4565] When sizeBasedWeight enabled for FairOrderingPolicy in CapacityScheduler, Sometimes lead to situation where all queue resources consumed by AMs only

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.8.0
• Fix Version/s: 2.8.0, 3.0.0-alpha1
• Component/s: capacity scheduler, capacityscheduler
• Target Version/s: 2.8.0
• Hadoop Flags: Reviewed
• Assignee: Wangda Tan
• Reporter: Karam Singh
• Created: 08/Jan/16 14:55
• Updated: 30/Aug/16 01:07
• Resolved: 19/Jan/16 05:06

Description

When sizeBasedWeight enabled for FairOrderingPolicy in CapacityScheduler, Sometimes lead to situation where all queue resources consumed by AMs only,

So from users perpective it appears that all application in queue are stuck, whole queue capacity is comsumed by AMs