[ http://issues.apache.org/jira/browse/HADOOP-215?page=all ]
Owen O'Malley resolved HADOOP-215:
----------------------------------
Resolution: Won't Fix
Alan asked to close this.
> New method for obtaining report of NameNode and JobTracker internals
> --------------------------------------------------------------------
>
> Key: HADOOP-215
> URL: http://issues.apache.org/jira/browse/HADOOP-215
> Project: Hadoop
> Type: New Feature
> Components: mapred, dfs
> Reporter: alan wootton
> Priority: Minor
>
> Many weeks ago we (at shopping.com research) decided we wanted to be able to
> get reports from the internals of JobTracker and NameNode. The hadoop web
> server provides some of this, but we wanted a more structured output, and
> easier extensibility.
> So, we decided to use xml, and I wrote it.
> There is a very thin interface to ClientProtocol, and JobSubmissionProtocol
> like this:
> public XmlReporter getXmlReport(String classname, String question);
> The implementation (in JobTracker and NameNode ) looks like this:
> public XmlReporter getXmlReport(String classname, String question)
> {
> XmlReporter reporter = XmlReporter.getInstance( classname,
> this, question);
> reporter.report();
> return reporter;
> }
> The idea being that you pass in some xml (question), an XmlReporter
> (classname) is instanciated and passed back.
> An XmlReporter object consists of nothing more that two org.w3c.dom.Document
> objects (one in the question, the other is the answer). The Writable
> interface, for the RPC, simply serializes the dom tree to a string, and then
> parses it back to a dom tree.
> Anyway, here it is. I would like for it to either make it into the code, or
> for me to find anoher way.
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