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https://issues.apache.org/jira/browse/HADOOP-6350?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13763494#comment-13763494
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Akira AJISAKA commented on HADOOP-6350:
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I've written a document describing hadoop metrics.
https://github.com/aajisaka/hadoop-metrics/wiki
I'd like to add it to hadoop project.
[~sinchii], thanks for your comment.
I wrote descriptions including following contents.
* metrics name(Display Name)
* the class where the metrics are written
* total value or current value
* unit(number, byte/MB/GB, or nanoseconds/milliseconds/seconds/minutes)
* the daemon(NameNode/DataNode/..) to output the metrics
> Documenting Hadoop metrics
> --------------------------
>
> Key: HADOOP-6350
> URL: https://issues.apache.org/jira/browse/HADOOP-6350
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Hong Tang
> Assignee: Akira AJISAKA
> Attachments: HADOOP-6350-sample-1.patch, sample1.png
>
>
> 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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