Zhitao Li created MESOS-8663:

             Summary: Support transfer of persistent volume between roles 
without losing data
                 Key: MESOS-8663
                 URL: https://issues.apache.org/jira/browse/MESOS-8663
             Project: Mesos
          Issue Type: Improvement
            Reporter: Zhitao Li

A persistent volume is scoped to a role right now. On agent, the volume path 
actually included the role string.

A possible workflow from operator side is to transfer the volume onto a new 
role (i.e, a reorg which transfers the owner of a database to a new team). 
Today the operator would need to create new volume and delete old volume, 
during which data could be lost (unless they perform manual data migration out 
of Mesos control).

This would be an operational blocker for us to try out hierarchical roles once 
they support persistent volume.

The goal here is to see whether Mesos can provide an atomic operation which can 
allow transfer the volume onto a different role without necessity to 
delete/recreate the volume.

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