[jboss-user] [Clustering/JBoss] - Problem singleton scheduling in a clustered JBoss 4.02 (java
Hi,
I'm trying to schedule a singleton in an HA env. My application server is JBoss 4.0.2
in a cluster environment with 2 nodes. But I must say it is a much hard work to do! The
documentation is not enough and I'm not so expert in JBoss and MBean realm.
I followed the examples in the JBoss develop guide but something doesn't work yet. And
now I'm in trouble!
This is the code excerpt:
| public class SchedulableService extends ServiceMBeanSupport implements
SchedulableServiceMBean
| {
|
| public SchedulableService() { }
|
| public void run(String amb, int num, boolean gen) {
| Jobber.Run(amb, num, gen);
| }
|
| }
|
| public interface SchedulableServiceMBean extends ServiceMBean
| {
| public abstract void run(String amb, int num, boolean gen);
| }
|
|
Here is the jboss-service.xml file for the configuration of the SAR file:
|
| <server>
|
| <mbean code="it.se.bt.comm.em.SchedulableService"
| name="jboss.schedule:service=HASchedulable">
| </mbean>
|
| <mbean code="org.jboss.varia.scheduler.ScheduleManager"
| name="jboss:service=ScheduleManager">
| <attribute name="StartAtStartup">true</attribute>
| </mbean>
|
| <mbean code="org.jboss.varia.scheduler.SingleScheduleProvider"
| name="jboss:service=HASingleScheduleProvider">
| <depends>jboss:service=mypartition</depends>
| <depends>jboss:service=ScheduleManager</depends>
| <depends>jboss.schedule:service=HASchedulable</depends>
|
| <attribute name="PartitionName">mypartition</attribute>
| <attribute name="HASingleton">true</attribute>
| <attribute
name="ScheduleManagerName">jboss:service=ScheduleManager</attribute>
| <attribute
name="TargetName">jboss.schedule:service=HASchedulable</attribute>
| <attribute name="TargetMethod">run( TPD , 16 ,
true)</attribute>
| <attribute name="StartDate">NOW</attribute>
| <attribute name="Period">60000</attribute>
| <attribute name="Repetitions">-1</attribute>
|
| </mbean>
|
| </server>
|
|
When I deploy the SAR file I get this Exception:
|
| 2009-02-04 13:36:59,039 ERROR
[org.jboss.varia.scheduler.ScheduleManager$MBeanListener] Invoke of the Schedulable MBean
failed
| javax.management.ReflectionException
| at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:216)
| at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:644)
| at
org.jboss.varia.scheduler.ScheduleManager$MBeanListener.handleNotification(ScheduleManager.java:593)
| at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
| at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| at java.lang.reflect.Method.invoke(Method.java:597)
| at
org.jboss.mx.notification.NotificationListenerProxy.invoke(NotificationListenerProxy.java:138)
| at $Proxy9.handleNotification(Unknown Source)
| at
javax.management.NotificationBroadcasterSupport.handleNotification(NotificationBroadcasterSupport.java:257)
| at
javax.management.NotificationBroadcasterSupport$SendNotifJob.run(NotificationBroadcasterSupport.java:322)
| at
javax.management.NotificationBroadcasterSupport$1.execute(NotificationBroadcasterSupport.java:307)
| at
javax.management.NotificationBroadcasterSupport.sendNotification(NotificationBroadcasterSupport.java:229)
| at javax.management.timer.Timer.sendNotification(Timer.java:1237)
| at javax.management.timer.Timer.notifyAlarmClock(Timer.java:1206)
| at javax.management.timer.TimerAlarmClock.run(Timer.java:1289)
| at java.util.TimerThread.mainLoop(Timer.java:512)
| at java.util.TimerThread.run(Timer.java:462)
| Caused by: java.lang.IllegalArgumentException: Unable to find operation
run(TPD,16,true)
| ... 17 more
|
|
I think the problem is related to the "TargetMethod" invokatio but I cannot
understand what is wrong.
Does anyone have any idea about it?
thanks
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