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https://issues.apache.org/jira/browse/YARN-451?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13737497#comment-13737497
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Sangjin Lee commented on YARN-451:
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I think some information about the "app size" can be obtained through
ApplicationResourceUsageReport. Specifically it has getNeededResources() and
getNumUsedContainers() and getNumReservedContainers(). This could be a useful
candidate for sizing the app in terms of resource demand.
If I am not mistaken, AppInfo is the class that exposes the data for the app
UI, and we could add a string or a couple of numbers individually to expose
this information. Thoughts?
> Add more metrics to RM page
> ---------------------------
>
> Key: YARN-451
> URL: https://issues.apache.org/jira/browse/YARN-451
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: resourcemanager
> Affects Versions: 2.0.3-alpha
> Reporter: Lohit Vijayarenu
> Priority: Minor
>
> ResourceManager webUI shows list of RUNNING applications, but it does not
> tell which applications are requesting more resource compared to others. With
> cluster running hundreds of applications at once it would be useful to have
> some kind of metric to show high-resource usage applications vs low-resource
> usage ones. At the minimum showing number of containers is good option.
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