[YARN-5013] Allow applications to provide input on amount of locality delay to use

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 3.0.0-alpha1
• Component/s: capacity scheduler
• Assignee: Rohith Sharma K S
• Reporter: Nathan Roberts
• Created: 28/Apr/16 21:51
• Updated: 12/May/16 18:30

Description

Continuing a discussion that started on YARN-4963

It would be useful if applications could provide some input to the scheduler as to how much locality delay they'd like and/or whether they'd prefer the application to be spread wide across the cluster (as opposed to being scheduled quickly and densely).

Issue Links

• is related to: YARN-4963 capacity scheduler: Make number of OFF_SWITCH assignments per heartbeat configurable