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From "Edward Capriolo (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-2168) [jmxtoolkit] Add JMXToolkit contrib with Cacti graphing and Nagios checking
Date Fri, 05 Feb 2010 15:49:28 GMT

    [ https://issues.apache.org/jira/browse/HBASE-2168?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12830143#action_12830143

Edward Capriolo commented on HBASE-2168:


It seems you are at the spot where I was a while back 
http://issues.apache.org/jira/browse/HADOOP-4594. (pretty much the spot that inspired hadoop-cacti-jtg)

In a nutshell, hadoop+hbase has built in ganglia support. It works in that in does push metrics
to a ganglia cluster, but it has its detractions. For me these are, often changing attributes
and object names, missing vivid documentation of what counters mean, and being forced into
a monitoring system (ganglia).

On one hand it makes a lot of sense to call cacti/nagios scripts "contrib" and take the stance
that they are not easily unit testable and thus do not belong in hadoop core. Of course, you
can reverse the argument "just because you can patch in ganglia support, does that mean that
only an NMS that can be patched in (pushed based nms) should be officially supported"

Thus we have hadoop-cacti-jtg, because ganglia does not meet everyone's needs but it is the
only NMS that seems to be able to make its way in. Every other NMS seems to be classified
as unneeded contrib. 

> [jmxtoolkit] Add JMXToolkit contrib with Cacti graphing and Nagios checking
> ---------------------------------------------------------------------------
>                 Key: HBASE-2168
>                 URL: https://issues.apache.org/jira/browse/HBASE-2168
>             Project: Hadoop HBase
>          Issue Type: New Feature
>    Affects Versions: 0.20.4, 0.21.0
>            Reporter: Lars George
>            Assignee: Lars George
>             Fix For: 0.20.4, 0.21.0
>         Attachments: HBASE-2168.patch
> Add a new contrib that allows to quickly build a package that enables easy graphing of
JMX exported values.

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