[MESOS-7575] Support reservation refinement for hierarchical roles.

• Type: Epic
• Status: Accepted
• Priority: Major
• Resolution: Unresolved
• Component/s: allocation
• Labels: multitenancy
• Epic Name: reservation refinement
• Sprint: Mesosphere Sprint 57
• Story Points: 12
• Assignee: Unassigned
• Reporter: Michael Park
• Shepherd: Benjamin Mahler
• Created: 26/May/17 21:14
• Updated: 05/Apr/19 16:55

Description

With the introduction of hierarchical roles, Mesos provides a mechanism to delegate resources down a hierarchy.
To complement this, we'll introduce a mechanism to refine the reservations down the hierarchy.

For example, given resources allocated to role foo, it can be further reserved for foo/bar.
When the resources allocated to foo/bar is unreserved, it goes back to where it came from. In this case, back to role foo.

Issue Links

• is a parent of: MESOS-6375 Support hierarchical resource allocation roles.
• relates to: MESOS-7681 Add safeguard for new agents with new features + old master