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https://issues.apache.org/jira/browse/YARN-5448?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15405320#comment-15405320
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Naganarasimha G R commented on YARN-5448:
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Thanks for sharing your thoughts [~wangda],
bq. Sorry I may not quite sure about this. Could you explain?
What i meant was, these additional non-usable resources.columns as part of
cluster metrics table will be use full only when there is a configuration error
and once corrected these columns are not of much use, basically these columns
purpose will be almost nill if configured correctly.
One alternative i can think of is show these columns only when partitions are
not mapped to queues. and if value is zero then dont show, thoughts ?
bq. which can help answering questions like "why I cannot fully utilize the
cluster".
One view point what i had for this was captured in the above [comment |
https://issues.apache.org/jira/browse/YARN-5448?focusedCommentId=15399248&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15399248],
but well again its a view point and debatable so dont have any hard
restrictions on having it.
bq. It's better to add a non-usable nodes as a separate col, but to me it may
not a fully replacement of total non-usable resources.
May be i did not get the rationale behind {{"total non-usable resources"}}
would be better than {{"non-usable nodes"}}, can elaborate more on your view on
this ?
> Resource in Cluster Metrics is not sum of resources in all nodes of all
> partitions
> ----------------------------------------------------------------------------------
>
> Key: YARN-5448
> URL: https://issues.apache.org/jira/browse/YARN-5448
> Project: Hadoop YARN
> Issue Type: Bug
> Components: capacity scheduler, resourcemanager, webapp
> Affects Versions: 2.7.2
> Reporter: Naganarasimha G R
> Assignee: Naganarasimha G R
> Attachments: NodesPage.png, schedulerPage.png
>
>
> Currently Resource info from Cluster Metrics are got from Queue Metrics's
> *available resource + allocated resource*. Hence if there are some nodes
> which belongs to partition but if that partition is not associated with any
> queue then in the capacity scheduler partition hierarchy shows this nodes
> resources under its partition but Cluster metrics doesn't show.
> Apart from this in the Nodes page too Metrics overview table is shown. So if
> we show Resource info from Queue Metrics User will not be able to co relate
> it. (have attached the images for the same)
> IIUC idea of not showing in the *Metrics overview table* is to highlight that
> configuration is not proper. This needs to be some how conveyed through
> parititon-by-queue-hierarchy chart.
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