Marco Rabozzi commented on YARN-4470:

Thanks [~ste...@apache.com] for your comments and for the time in reviewing our 
proposal. I and [~giovanni.fumarola] are going to evaluate SLIDER and get back 
to you.

> Application Master in-place upgrade
> -----------------------------------
>                 Key: YARN-4470
>                 URL: https://issues.apache.org/jira/browse/YARN-4470
>             Project: Hadoop YARN
>          Issue Type: New Feature
>          Components: resourcemanager
>            Reporter: Giovanni Matteo Fumarola
>            Assignee: Giovanni Matteo Fumarola
>         Attachments: AM in-place upgrade design. rev1.pdf
> 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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