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From "Arpit Agarwal (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-6350) Documenting Hadoop metrics
Date Thu, 12 Jun 2014 19:15:03 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-6350?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14029641#comment-14029641

Arpit Agarwal commented on HADOOP-6350:

Thanks for clearing that up!

I am +1 on the HDFS/common changes however I don't feel qualified to review the YARN metrics.
Just a suggestion and if you agree, you can split this patch into two:
# Part 1 adds Metrics.apt.vm and documents all contexts except yarn and mapred. I'd be happy
to commit it.
# Part 2 documents yarn/mapred metrics in a separate YARN jira.

What do you think?

> Documenting Hadoop metrics
> --------------------------
>                 Key: HADOOP-6350
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6350
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: documentation, metrics
>    Affects Versions: 3.0.0, 2.1.0-beta
>            Reporter: Hong Tang
>            Assignee: Akira AJISAKA
>              Labels: metrics
>         Attachments: HADOOP-6350-sample-1.patch, HADOOP-6350-sample-2.patch, HADOOP-6350-sample-3.patch,
HADOOP-6350.4.patch, HADOOP-6350.5.patch, HADOOP-6350.6.patch, HADOOP-6350.7.patch, HADOOP-6350.8.patch,
> Metrics should be part of public API, and should be clearly documented similar to HADOOP-5073,
so that we can reliably build tools on top of them.

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