[YARN-3305] AM-Used Resource for leafqueue is wrongly populated if AM ResourceRequest is less than minimumAllocation

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.6.0
• Fix Version/s: 2.8.0, 3.0.0-alpha1
• Component/s: scheduler
• Hadoop Flags: Reviewed
• Assignee: Rohith Sharma K S
• Reporter: Rohith Sharma K S
• Created: 09/Mar/15 05:40
• Updated: 30/Aug/16 01:26
• Resolved: 17/Mar/15 20:53

Description

For given any ResourceRequest, CS#allocate normalizes request to minimumAllocation if requested memory is less than minimumAllocation.
But AM-used resource is updated with actual ResourceRequest made by user. This results in AM container allocation more than Max ApplicationMaster Resource.

This is because AM-Used is updated with actual ResourceRequest made by user while activating the applications. But during allocation of container, ResourceRequest is normalized to minimumAllocation.

Issue Links

• breaks: YARN-3996 YARN-789 (Support for zero capabilities in fairscheduler) is broken after YARN-3305