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https://issues.apache.org/jira/browse/HDFS-7465?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14660616#comment-14660616
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Chris Nauroth commented on HDFS-7465:
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I see this issue is closed, but I don't think the NNTop information is really
in the web UI. Was this closed by mistake? Do we need to reopen?
> Html view for nntop: top users of name node
> -------------------------------------------
>
> Key: HDFS-7465
> URL: https://issues.apache.org/jira/browse/HDFS-7465
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Maysam Yabandeh
> Priority: Minor
> Fix For: 2.7.0
>
>
> nntop (HDFS-6982) maintains the list of top users of the name node and export
> the list via jmx. An external monitoring tool can then draw graphs of the top
> users using jmx interface. For small-scale deployments that are not yet
> equipped with an external monitoring tool, however, it would be useful to
> show the list of recent top users using a html view. The html page lists the
> top users of each name node command in the past 1, 5, 25 minutes
> (configurable). The details can be found in the design doc of nntop:
> https://issues.apache.org/jira/secure/attachment/12665990/nntop-design-v1.pdf
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