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  1. Mesos
  2. MESOS-7682

Agent agent downgrade capability checking.

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    Details

    • Type: Improvement
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: None
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      Description

      It would be great if the agent could prevent a downgrade if it reaches a point where a capability becomes required but the downgraded agent does not have the capability.

      For example, consider the case that an agent starts writing refined reservations to disk (per the RESERVATION_REFINEMENT capability). At this point, the RESERVATION_REFINEMENT capability becomes required. Ideally, the agent persists this information into its state, so that if the agent is downgraded to a pre-RESERVATION_REFINEMENT state, the old agent could detect that a capability it does not have is required. At this point the old agent could refuse to start. This would prevent a "buggy" downgrade due to the old agent mis-reading the checkpointed resources.

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              • Assignee:
                Unassigned
                Reporter:
                bmahler Benjamin Mahler
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                • Created:
                  Updated: