[MESOS-6113] Offer unused quota resources as revocable

• Type: Task
• Status: Accepted
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.0.1
• Component/s: allocation
• Labels: multitenancy
• Epic Link: revocation
• Assignee: Unassigned
• Reporter: Michael Gummelt
• Created: 31/Aug/16 18:47
• Updated: 12/Jul/17 21:07

Description

Goal:

I have high-priority Spark jobs, and best-effort jobs. I need my high-priority jobs to pre-empt my best-effort jobs, so I'd like to launch the best-effort jobs on revocable resources.

Problem:

Revocable resources are currently only created via oversubscription, where resources allocated to but not used by a framework will be offered to other frameworks. This doesn't support the ability for a high-pri framework to start up and pre-empty a low-pri framework.

Solution:

Let's allow quota (and ideally any reserved resources) to be configurable to be offered as revocable resources to other frameworks that don't register with the role.

Issue Links

• duplicates: MESOS-4967 Oversubscription for reservation
• is duplicated by: MESOS-4987 The resources is not full allocated because of Quota
• relates to: MESOS-4392 Revocable by default