[collectd] generic JMX plugin

Benjamin Coddington Benjamin.Coddington at uvm.edu
Mon Jul 27 21:39:34 CEST 2009

I know you are looking for an snmp solution, but we had a similar 
problem, and handled it with an HttpHandler to expose JMX beans in a 
REST-ful way.   Then we slurp up the ones we want with perl in collectd. 
  I could send along what we've done, or check out jfdenise's entry:


Who really did all the hard work.


On 7/27/09 3:01 PM, matthew sporleder wrote:
> I have a pretty strong need to do some java monitoring and,
> unfortunately, I can't get all of the information I need through the
> jvm's built-in snmp interface.  (all the memory info is there, but I
> don't think I can get database thread pools, message queue depths,
> hibernate stats, etc)
> So what I would really like to see is an snmp-style plugin that spoke JMX.
> Define the<Data>  to collect in terms of the mbean domain, mbean name,
> and attribute name
> Then a type, obviously, and the Table feature would be pretty handy as
> well for getting values that come back in lists.  (although specifying
> the specific value to get would also be fine)
> committed=1532428288, init=1610612736, max=1532428288, used=974726808
> (just part of a javax.management.openmbean.CompositeData jmx answer
> from mx4j.  Don't even get me started on trying to use the curl plugin
> on that)
> The last time I checked, OpenNMS was unable to collect data over JMX
> if it came back in a complex type, so it must be a somewhat difficult
> problem.
> <Data "javaoldgen">
>    Type "javax.management.openmbean.CompositeData"
>    Table true
>    MBdomain "java.lang"
>    MBname "type=MemoryPool,name=PS Old Gen"
>    MBattribute "Usage"
> </Data>
> Does anyone have something like this already in the works?
> Matt
> ref:
> http://java.sun.com/javase/6/docs/jre/api/management/JVM-MANAGEMENT-MIB.mib
> http://search.cpan.org/~roland/jmx4perl-0.21/lib/JMX/Jmx4Perl.pm
> http://blogs.sun.com/jmxetc/entry/what_is_the_jvm_snmp
> http://www.jroller.com/maximdim/entry/monitoring_jvm_with_mrtg_part
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