[YARN-3547] FairScheduler: Apps that have no resource demand should not participate scheduling

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.8.0, 3.0.0-alpha1
• Component/s: fairscheduler
• Hadoop Flags: Reviewed
• Assignee: Xianyin Xin
• Reporter: Xianyin Xin
• Created: 27/Apr/15 07:45
• Updated: 12/Sep/16 20:22
• Resolved: 29/May/15 22:21

Description

At present, all of the 'running' apps participate the scheduling process, however, most of them may have no resource demand on a production cluster, as the app's status is running other than waiting for resource at the most of the app's lifetime. It's not a wise way we sort all the 'running' apps and try to fulfill them, especially on a large-scale cluster which has heavy scheduling load.

Issue Links

• supercedes: YARN-5613 Fair Scheduler can assign containers from blacklisted nodes