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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4470) Application Master in-place upgrade
Date Tue, 22 Dec 2015 12:11:46 GMT

    [ https://issues.apache.org/jira/browse/YARN-4470?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15068034#comment-15068034
] 

Steve Loughran commented on YARN-4470:
--------------------------------------

talk to [~gsaha] about the work. Thinking more about it, one thing we can't currently do is
change the command line -jvm heap, cli arguments, etc. Having a way to update in-place the
AM launch context prior to triggering an AM restart could address that

> 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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