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https://issues.apache.org/jira/browse/HADOOP-9160?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13726355#comment-13726355
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Steve Loughran commented on HADOOP-9160:
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While I don't have a personal need for this, if the option can be made low cost
to add to Hadoop, with some regression tests, there's no obvious harm in adding
the feature. built-in JMX has always sucked; we used to us MX4J for that reason.
Looking at the patch some more, HttpServer won't start up if jolokia isn't on
the classpath. That is something I'd reject. Better to
# mark JAR as optional in the POM
# make the servlet registration work even if jolokia isn't on the classpath
(dynamic class load or separate class to do the registration -a class only
invoked iff jolokia is enabled)
> Adopt Jolokia as the JMX HTTP/JSON bridge.
> ------------------------------------------
>
> Key: HADOOP-9160
> URL: https://issues.apache.org/jira/browse/HADOOP-9160
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Luke Lu
> Assignee: Junping Du
> Labels: features
> Attachments: hadoop-9160-demo-branch-1.txt, HADOOP-9160.patch
>
>
> The current JMX HTTP bridge has served its purpose, while a more complete
> solution: Jolokia (formerly Jmx4Perl) has been developed/matured over the
> years.
> Jolokia provides comprehensive JMX features over HTTP/JSON including search
> and list of JMX attributes and operations metadata, which helps to support
> inter framework/platform compatibility. It has first class language bindings
> for Perl, Python, Javascript, Java.
> It's trivial (see demo patch) to incorporate Jolokia servlet into Hadoop HTTP
> servers and use the same security mechanisms.
> Adopting Jolokia will substantially improve the manageability of Hadoop and
> its ecosystem.
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