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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-453) XML-based metrics as JSP servlet for NameNode
Date Thu, 02 Jul 2009 16:45:47 GMT

    [ https://issues.apache.org/jira/browse/HDFS-453?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12726547#action_12726547
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Steve Loughran commented on HDFS-453:
-------------------------------------

actually, I'm not so sure about the schema, I just remembered how badly xsd sucks

also, 
# use .jspx rather than .jsp for XML JSP pages. 
# consider moving the functions into their own .java code for better integration with the
rest of the source (and the IDE, etc)

>  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: 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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