[MESOS-4526] Include the allocated portion of reserved resources in the role sorter for DRF.

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.27.0
• Component/s: allocation
• Labels: mesosphere
• Target Version/s: 0.27.0
• Sprint: Mesosphere Sprint 27
• Story Points: 1
• Assignee: Michael Park
• Reporter: Michael Park
• Shepherd: Joris Van Remoortere
• Created: 27/Jan/16 04:55
• Updated: 26/Nov/18 12:22
• Resolved: 26/Nov/18 12:22

Description

Reserved resources should be accounted for fairness calculation whether they are allocated or not, since they model a long or forever running task. That is, the effect of reserving resources is equivalent to launching a task in that the resources that make up the reservation are not available to other roles as non-revocable.

In the short-term, we should at least account for the allocated portion of the reservation.