Kenji Kikushima updated YARN-1000:

    Attachment: YARN-1000-sample.patch

Attached file is sample implementation to switch dynamic resource configuration 
on RM.
This patch introduces "yarn.dynamic-resource-configuration.enable" and 
"yarn.dynamic-resource-configuration-persist.enable" parameters.
Please refer to it if you have interest. I'm okay that leave it until proper 
timing. Thanks.

> Dynamic resource configuration feature can be configured to enable or disable 
> and persistent on setting or not
> --------------------------------------------------------------------------------------------------------------
>                 Key: YARN-1000
>                 URL: https://issues.apache.org/jira/browse/YARN-1000
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager, scheduler
>            Reporter: Junping Du
>            Assignee: Junping Du
>         Attachments: YARN-1000-sample.patch
> There are some configurations for feature of dynamic resource configuration:
> 1. enable or not: if enable, then setting node resource in runtime through 
> CLI/REST/JMX can be successful, else exceptions of "function not supported" 
> will be thrown out. In future, we may support to enable this feature in 
> partial nodes which has resource flexibility (like virtual nodes).
> 2. dynamic resource setting is persistent or not: it depends on users' 
> scenario to see if the life cycle of setting in runtime should be kept after 
> NM is down and restart.

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