[jboss-user] [Clustering/JBoss] - How to auto-start my singleton service?

I am using JDK 5, JBoss 4.0.5GA and Windows. I'm fairly familiar with clustering, but barely with MBeans and sar archives. I have gone through several posts, documentation and the wiki, and finally managed to make a MBean service. I deployed the sar to farm/ it gets copied to all nodes. When I go to the web-console, I can see that the service has been successfully deployed on both the nodes. The jboss-service.xml of the sar contains: | <mbean code="com.tcore.jboss.service.SingletonServiceExample" | name="tcore.services:service=SingletonServiceExample"> | <depends>jboss.ha:service=HASingletonDeployer,type=Barrier</depends> | <attribute name="Message">Message in the XML</attribute> | </mbean> | Shouldn't the service automatically start on whichever node is the master? I can manually invoke the start() operation which prints a diagnostic message to let me know that the service has started. But how do I make it work so that whichever node becomes master the service starts and when it loses master status, the service stops? Following is the service code: | package com.tcore.jboss.service; | | public interface SingletonServiceExampleMBean | { | public String getMessage(); | public void setMessage(String message); | | public void printMessage(); | public boolean isTheMasterNode(); | | public void startSingleton() throws Exception; | public void stopSingleton(); | } | | package com.tcore.jboss.service; | | public class SingletonServiceExample implements SingletonServiceExampleMBean | { | | private String message; | private boolean theMasterNode = false; | | public void startSingleton() throws Exception | { | theMasterNode = true; | message = "I have been started! " + theMasterNode; | System.out.println("Starting with message: " + message); | } | | public void stopSingleton() | { | theMasterNode = false; | message = "I have been stopped!" + theMasterNode; | System.out.println("Stopping with message: " + message); | } | | public String getMessage() | { return message; } | | public void setMessage(String message) | { this.message = message; } | | public void printMessage() | { System.out.println(message); } | | public boolean isTheMasterNode() | { return theMasterNode; } | | } | Thanks! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4032270#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...