[MESOS-9535] Master should clean up operations from downgraded agents

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Done
• Fix Version/s: 1.8.0
• Labels: foundations mesosphere
• Epic Link: Feedback for offer operations
• Sprint: Mesos Foundations RI10 Sp 39, Mesos Foundations RI11 Sp 40
• Story Points: 3
• Assignee: Greg Mann
• Reporter: Greg Mann
• Shepherd: Gastón Kleiman
• Created: 23/Jan/19 17:44
• Updated: 19/Feb/19 20:09
• Resolved: 19/Feb/19 20:09

Description

If a Mesos agent is upgraded to provide reliable feedback for operations on agent default resources and then later downgraded, the master may possess in-memory state related to operations requesting feedback which should be cleaned up. We should update the master to detect downgraded agents and clean up appropriately.

This ticket does not include sending best-effort feedback to schedulers for operations on downgraded agents.

The upgrade documentation should also be updated with a note about the impact of downgrades on operation feedback.