[jboss-user] [JBoss Cache: Core Edition] - Registration of Cache MBean for JMX?
MPreukschat
do-not-reply at jboss.com
Tue May 26 07:09:05 EDT 2009
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 at d66426
MBeanServer:
MBeanCount: 8
Server toString: com.sun.jmx.mbeanserver.JmxMBeanServer at 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
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