[YARN-1990] Track time-to-allocation for different size containers

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Invalid
• Component/s: resourcemanager
• Assignee: Carlo Curino
• Reporter: Carlo Curino
• Created: 28/Apr/14 02:14
• Updated: 01/May/15 23:30
• Resolved: 01/May/15 23:30

Description

Allocation of Large Containers are notoriously problematic, as smaller containers can more easily grab resources.

The proposal for this JIRA is to maintain a map of container sizes, and time-to-allocation, that can be used as:

• general insight on cluster behavior,
• to inform the reservation-system, and allows us to "account for delays" in allocation, so that the user reservation is respected regardless the size of containers requested.