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https://issues.apache.org/jira/browse/YARN-2943?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14243371#comment-14243371
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Jian He commented on YARN-2943:
-------------------------------
- {{LOG.info("yyy");}} ?
- typo {{// Nodes will show need include Non-empty label filter}}
- If I restart NM, “num of active NMs” is incorrect; this is probably because
NM is using ephemeral ports;
- “<NO_LABEL>” -> “N/A”, similarly, update the previous nodes page to show
“N/A” for not labeled nodes;
- usability: <num of active NMs> link can point to a filtered list of nodes by
label ?
- pullRMNodeLabelsInfo - it’s calculated on demand and each time loop all the
nodes in the cluster; we can probably promote Label as a separate class and
internally bookkeeping the number of NMs.
> Add a node-labels page in RM web UI
> -----------------------------------
>
> Key: YARN-2943
> URL: https://issues.apache.org/jira/browse/YARN-2943
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: resourcemanager
> Reporter: Wangda Tan
> Assignee: Wangda Tan
> Attachments: Node-labels-page.png, Nodes-page-with-label-filter.png,
> YARN-2943.1.patch
>
>
> Now we have node labels in the system, but there's no a very convenient to
> get information like "how many active NM(s) assigned to a given label?", "how
> much total resource for a give label?", "For a given label, which queues can
> access it?", etc.
> It will be better to add a node-labels page in RM web UI, users/admins can
> have a centralized view to see such information.
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