Giovanni Matteo Fumarola created YARN-4470:

             Summary: Application Master in-place upgrade
                 Key: YARN-4470
             Project: Hadoop YARN
          Issue Type: New Feature
          Components: resourcemanager
            Reporter: Giovanni Matteo Fumarola
            Assignee: Giovanni Matteo Fumarola

It would be nice if clients could ask for an AM in-place upgrade.
It will give to YARN the possibility to upgrade the AM, without losing the work
done within its containers. This allows to deploy bug-fixes and new versions of 
the AM incurring in long service downtimes.

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