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https://issues.apache.org/jira/browse/HADOOP-6350?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Akira AJISAKA updated HADOOP-6350:
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Attachment: HADOOP-6350.6.patch
Added a description of NameNode RetryCache.
> 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, 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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