[YARN-4981] limit the max containers to assign to one application per heartbeart

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 2.5.0, 2.6.4
• Fix Version/s: 2.5.0
• Component/s: fairscheduler
• Labels: oct16-medium
• Target Version/s: 2.5.0
• Hadoop Flags: Incompatible change
• Assignee: Unassigned
• Reporter: ChenFolin
• Created: 21/Apr/16 08:56
• Updated: 28/Oct/16 05:57
• Resolved: 28/Oct/16 05:57

Description

When use assignMultiple，and such as set maxAssign=10:
if a job is high CPU util or high CPU load, it may lead to a part of nodes very busy. and the job may cost a long time.
so , i want to limit the max containers to assign to one application per heartbeart, it may help to nodes use more uniform.

Issue Links

• is part of: YARN-5035 FairScheduler: Adjust maxAssign dynamically when assignMultiple is turned on