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https://issues.apache.org/jira/browse/YARN-451?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13709420#comment-13709420
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Joep Rottinghuis commented on YARN-451:
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It would certainly be very useful to be able to see application size/weight
(and order by this) when many applications run.
If it were to be added, various Yarn applications would have their own specific
implementation.
At the moment only memory is tracked, so #slot Gigabytes would be a possible
number that would be more generic then simply #mappers+#reducers.
Either would be more useful that having no data at all.
Being able to see the size of applications is really helpful to understand what
is going on in one view. Is somebody running many small applications, a few
large ones, many large ones ? etc.
> 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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