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https://issues.apache.org/jira/browse/HDFS-453?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12767722#action_12767722
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Aaron Kimball commented on HDFS-453:
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Is there a reason this is still waiting to commit? MAPREDUCE-679 went in weeks
ago.
> XML-based metrics as JSP servlet for NameNode
> ----------------------------------------------
>
> Key: HDFS-453
> URL: https://issues.apache.org/jira/browse/HDFS-453
> Project: Hadoop HDFS
> Issue Type: New Feature
> Reporter: Aaron Kimball
> Assignee: Aaron Kimball
> Attachments: dfshealth.xml.jspx, example-dfshealth.xml,
> HDFS-453.2.patch, HDFS-453.3.patch, HDFS-453.4.patch, HDFS-453.5.patch,
> HDFS-453.6.patch, HDFS-453.patch
>
>
> In HADOOP-4559, a general REST API for reporting metrics was proposed but
> work seems to have stalled. In the interim, we have a simple XML translation
> of the existing NameNode status page which provides the same metrics as the
> human-readable page. This is a relatively lightweight addition to provide
> some machine-understandable metrics reporting.
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