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Monitoring Connector Assets​

Monitored Objects​

The Pack JVM JMX collects metrics for:

  • Class
  • Gc
  • Memory
  • System (cpu, load-average, fd)
  • Threads

Collected Metrics​

Metric nameDescriptionUnit
class.loaded.current.countCurrent number of classes loaded
class.loaded.countNumber of classes loaded
class.unloaded.countNumber of classes unloaded


Please install jolokia agent on your JVM Jolokia download page. Ask to your admin to deploy it and give you the URL.


  1. Install the Centreon Plugin on every Poller:
yum install centreon-plugin-Applications-Jvm-Jmx
  1. On the Centreon Web interface in Configuration > Monitoring Connector Manager, install the JVM JMX Pack

Host configuration​

  • Add a new Host and apply the App-Jvm-JMX-custom Host Template

Once the template applied, some Macros have to be configured:

JOLOKIAUSERNAMEJolokia user name
JOLOKIAEXTRAOPTIONSAny extra option you may want to add to the command (eg. a --verbose flag)

How to test the Plugin and what are the main options for?​

Once the Plugin installed, log into your Poller using the centreon-engine user account and test by running the following command (Parameters such as url have to be adjusted):

/usr/lib/centreon/plugins/ \
--plugin=apps::java::jvm::jmx::plugin \
--mode=class-count \
--url='' \

Output example:

OK: Class current: 3009, loaded: 0, unloaded: 0 | 'class.loaded.current.count'=3009;;;0; 'class.loaded.count'=0;;;0; 'class.unloaded.count'=0;;;0;

The command above monitors JVM class usage (--mode=class-count). It uses the URL (--url='') to connect.

All the options that can be used with this plugin can be found over the --help command:

/usr/lib/centreon/plugins/ \
--plugin=apps::java::jvm::jmx::plugin \
--mode=class-count \


Troubleshooting plugins