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https://issues.apache.org/jira/browse/YARN-451?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13739213#comment-13739213
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Sangjin Lee commented on YARN-451:
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I think showing this information on the app list page is actually more valuable
than the per-app page. If this information is present in the app list page, one
can quickly scan the list and get a sense of which job/app is bigger than
others in terms of resource consumption. Also, it makes sorting possible.
One could in theory visit individual per-app pages one by one to get the same
information, but it's so much more useful to have it ready at the overview page
so one can get that information quickly.
In hadoop 1.0, one could get the same information by looking at the number of
total mappers and reducers. That way, we got a very good idea on which ones are
big jobs (and thus need to be monitored more closely) without drilling into any
of the apps.
> 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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