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Posted to common-issues@hadoop.apache.org by "Todd Lipcon (JIRA)" <ji...@apache.org> on 2012/10/09 19:24:02 UTC

[jira] [Created] (HADOOP-8905) Add metrics for HTTP Server

Todd Lipcon created HADOOP-8905:
-----------------------------------

             Summary: 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


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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[jira] [Commented] (HADOOP-8905) Add metrics for HTTP Server

Posted by "Aaron T. Myers (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/HADOOP-8905?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13472566#comment-13472566 ] 

Aaron T. Myers commented on HADOOP-8905:
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Might also be nice to use the percentile metrics support to record high percentile response times.
                
> 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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