[MAPREDUCE-4257] Support fair-sharing option within a MR2 Capacity Scheduler queue

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Invalid
• Component/s: capacity-sched, mrv2
• Target Version/s: 2.0.0-alpha
• Assignee: Karthik Kambatla
• Reporter: Thomas White
• Created: 14/May/12 22:16
• Updated: 03/Nov/14 18:05
• Resolved: 12/Jul/12 01:33

Description

The fair scheduler can run jobs in a single pool (queue) in FIFO or fair share mode. In FIFO mode one job runs at a time, in priority order, while in fair share mode multiple jobs can run at the same time, and they share the capacity of the pool. This JIRA is to add the latter feature to Capacity Scheduler as an option - the default would remain FIFO.

Issue Links

• is related to: YARN-2 Enhance CS to schedule accounting for both memory and cpu cores