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https://issues.apache.org/jira/browse/HADOOP-8905?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13651843#comment-13651843
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Steven Yates commented on HADOOP-8905:
--------------------------------------

3) Located org.apache.hadoop.http.HttpServer
4) Will need to include some basic additional container registration code for 
JMX

i.e Within HttpServer(String name.......)

    MBeanContainer mBeanContainer = new MBeanContainer(mBeanServer);
    webServer.getContainer().addEventListener(mBeanContainer);
    mBeanContainer.start();

5) Statistics handler will require registration by the look of things

i.e 

    StatisticsHandler statisticsHandler = new StatisticsHandler();
    webAppContext.addHandler(statisticsHandler);


                
> Add metrics for HTTP Server
> ---------------------------
>
>                 Key: HADOOP-8905
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8905
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: metrics
>    Affects Versions: 3.0.0
>            Reporter: Todd Lipcon
>              Labels: newbie
>
> Currently we don't expose any metrics about the HTTP server. It would be 
> useful to be able to monitor the following:
> - Number of threads currently actively serving servlet requests
> - Total number of requests served
> - Perhaps break down time/count by endpoint (eg /jmx, /conf, various JSPs)
> This becomes more important as http-based protocols like webhdfs become more 
> common

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