[YARN-2083] In fair scheduler, Queue should not been assigned more containers when its usedResource had reach the maxResource limit

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.3.0
• Component/s: fairscheduler
• Labels: BB2015-05-TBR oct16-medium
• Assignee: Unassigned
• Reporter: Tianyi Wang
• Created: 21/May/14 07:03
• Updated: 07/Jan/17 01:52

Description

In fair scheduler, FSParentQueue and FSLeafQueue do an assignContainerPreCheck to guaranty this queue is not over its limit.
But the fitsIn function in Resource.java did not return false when the usedResource equals the maxResource.

I think we should create a new Function "fitsInWithoutEqual" instead of "fitsIn" in this case.

Issue Links

• is duplicated by: YARN-2145 FairScheduler can assign more resources to queue with MaxShare set.