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From "Haohui Mai (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6747) Display the most recent GC info on NN webUI
Date Fri, 25 Jul 2014 07:47:38 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6747?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14074178#comment-14074178

Haohui Mai commented on HDFS-6747:

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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