Registration of Cache MBean for JMX?
Hi all,
I'm working on a thesis about simulation and evaluation of distributed caching and I would like to use the standalone version of the JBoss Cache for this purpose. Now I have some questions regarding the registration of the MBeans to JMX.
The userguide for 3.0.0GA "Naga"
/http://www.jboss.org/file-access/default/members/jbosscache/freezone/docs/3.0.3.GA/userguide_en/html/deployment.html#jmx.registration/
shows two different solutions for this:
The first one (Registration with an existing cache instance) has been implemented by me like this:
//CacheFactory factory = new DefaultCacheFactory();
Cache cache = factory.createCache("total-replication.xml");
//Creating MBean Server for JMX-Manager
MBeanServer server =
MBeanServerFactory.createMBeanServer("jboss.cache");
ObjectName on = null;
//I don't know why I need a try/catch-block right here, but ObjectName on = new ObjectName("jboss.cache:service=Cache"); is throwing an exception without it?!
try {
on = new ObjectName("jboss.cache:service=Cache");
} catch (MalformedObjectNameException e)
{
e.printStackTrace();
} catch (NullPointerException e)
{
e.printStackTrace();
}
JmxRegistrationManager jmxManager = new
JmxRegistrationManager(server, cache, on);
jmxManager.registerAllMBeans();
After that I'm fetching some information about the objects via toString() (what exactly is the MBean Count from the MBeanServer?):
ObjectName:
Domain: jboss.cache
PropertyList: service=Cache
Object toString: jboss.cache:service=Cache
jmxManager:
Object NameBase: jboss.cache:service=Cache
Object toString: org.jboss.cache.jmx.JmxRegistrationManager@d66426
MBeanServer:
MBeanCount: 8
Server toString: com.sun.jmx.mbeanserver.JmxMBeanServer@1490eb5/
Creating the cache via the "CacheJmxWrapper" is the second solution in the usermanual. Regarding the example with this wrapper I ran into some trouble when creating the wrapper. First of all, there seems not to be a constructor which is accepting a Configuration Object like in the example:
CacheJmxWrapperMBean wrapper = new CacheJmxWrapper(config);
Furthermore, the "CacheJmxWrapper" will not be supported anymore since API Version 3.0 and will be replaced by the "JmxRegistrationManager".
http://www.jboss.org/file-access/default/members/jbosscache/freezone/docs/3.0.3.GA/apidocs/index.html/
The "CacheJmxWrapper" is signed as deprecated. Is it still recommended to use it and how do I create it without using the Configuration object in the constructor?
A similar question regarding the wrapper was has been raised in this thread:
http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4211605#4211605
Thanks for your help!
Cheers,
Marcel
