Meng Zhu created MESOS-8878:
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Summary: Safeguard downgrade with minimum capabilities.
Key: MESOS-8878
URL: https://issues.apache.org/jira/browse/MESOS-8878
Project: Mesos
Issue Type: Epic
Reporter: Meng Zhu
A common use case for downgrade is rolling back from problematic upgrades.
Mesos promises compatibility between any 1.x and 1.y versions of masters/agents
as long as new feature(s) is not used. However, currently there is no easy way
to tell whether any “new” features (that would break downgrade) are used. And
any incompatible downgrade would silently result in undefined behavior instead
of failsafe. This is not ideal.
We propose to introduce minimum capability---the minimum capability a component
needs to possess in order to recover from the certain state.
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