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https://issues.apache.org/jira/browse/HDFS-6747?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14074178#comment-14074178
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Haohui Mai commented on HDFS-6747:
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I think that it will be quite handy to show some GC metrics on the UI. Arguably
this is not the best way to operate the system, but GC configuration / metrics
are the first things that we looked at whenever we encounter performance
problems.
It is quite helpful to have them on the UI to quickly diagnose performance
issues.
> Display the most recent GC info on NN webUI
> -------------------------------------------
>
> Key: HDFS-6747
> URL: https://issues.apache.org/jira/browse/HDFS-6747
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Ming Ma
>
> It will be handy if the recent GC information is available on NN webUI.
> admins don't need to dig out GC logs.
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