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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-7144) Expose JMX with something like JMXProxyServlet
Date Wed, 01 Jun 2011 17:34:47 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-7144?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13042311#comment-13042311
] 

Hadoop QA commented on HADOOP-7144:
-----------------------------------

+1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12481100/HADOOP-7411-trunk-V2.patch
  against trunk revision 1129989.

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 4 new or modified tests.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 findbugs.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit
warnings.

    +1 core tests.  The patch passed core unit tests.

    +1 system test framework.  The patch passed system test framework compile.

Test results: https://builds.apache.org/hudson/job/PreCommit-HADOOP-Build/555//testReport/
Findbugs warnings: https://builds.apache.org/hudson/job/PreCommit-HADOOP-Build/555//artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: https://builds.apache.org/hudson/job/PreCommit-HADOOP-Build/555//console

This message is automatically generated.

> Expose JMX with something like JMXProxyServlet 
> -----------------------------------------------
>
>                 Key: HADOOP-7144
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7144
>             Project: Hadoop Common
>          Issue Type: New Feature
>            Reporter: Luke Lu
>            Assignee: Robert Joseph Evans
>              Labels: jmx
>             Fix For: 0.23.0
>
>         Attachments: HADOOP-7411-0.20.20X-V1.patch, HADOOP-7411-0.20.20X-V2.patch, HADOOP-7411-trunk-V1.patch,
HADOOP-7411-trunk-V2.patch, HADOOP-7411-trunk-alpha.patch, jmx.json
>
>
> Much of the Hadoop metrics and status info is available via JMX, especially since 0.20.100,
and 0.22+ (HDFS-1318, HADOOP-6728 etc.) For operations staff not familiar JMX setup, especially
JMX with SSL and firewall tunnelling, the usage can be daunting. Using a JMXProxyServlet (a
la Tomcat) to translate JMX attributes into JSON output would make a lot of non-Java admins
happy.
> We could probably use Tomcat's JMXProxyServlet code directly, if it's already output
some standard format (JSON or XML etc.) The code is simple enough to port over and can probably
integrate with the common HttpServer as one of the default servelet (maybe /jmx) for the pluggable
security.

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