[MESOS-9545] Marking an unreachable agent as gone should transition the tasks to terminal state

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.6.3, 1.7.3, 1.9.0, 1.8.2
• Labels: foundations
• Target Version/s: 1.5.4, 1.6.3, 1.7.3
• Epic Link: Mesos Agent Lifecycle
• Sprint: Mesos Foundations: RI-13 Sp 44
• Story Points: 3
• Assignee: Greg Mann
• Reporter: Vinod Kone
• Shepherd: Benno Evers
• Created: 31/Jan/19 22:48
• Updated: 21/Aug/19 01:41
• Resolved: 24/Apr/19 05:41

Description

If an unreachable agent is marked as gone, currently master just marks that agent in the registry but doesn't do anything about its tasks. So the tasks are in UNREACHABLE state in the master forever, until the master fails over. This is not great UX. We should transition these to terminal state instead.

This fix should also include a test to verify.

Issue Links

• is related to: MESOS-9937 53598228fe should be backported to 1.7.x
• is related to: MESOS-8887 Unreachable tasks are not GC'ed when unreachable agent is GC'ed.
• is related to: MESOS-9546 Operation status is not updated in master when agent is marked as unreachable or gone
• is related to: MESOS-8888 Support manual UNREACHABLE task GC.