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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-9160) Adopt Jolokia as the JMX HTTP/JSON bridge.
Date Fri, 02 Aug 2013 08:35:50 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-9160?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13727485#comment-13727485
] 

Steve Loughran commented on HADOOP-9160:
----------------------------------------

bq. It'll always be part of the classpath from packaging just like other maven dependencies
(jackson etc).

That's my point: its only needed for this monitoring and should be optional. Otherwise its
yet-another-JAR for all the RPMs &c. With it being listed in the POM as non-optional,
it may end up on the classpath of client side apps. 

Making it optional is pretty straightforward.


                
> 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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