Barrier not started in cluster using JBoss 5.0.0.GA
We are using the Barrier mbean to deploy some of our services as singletons in a cluster. Currently we use JBoss 4.2.3 in a cluster of two nodes, and the singletons are working properly, their configuration includes the following dependency:
<depends>jboss.ha:service=HASingletonDeployer,type=Barrier</depends>
When I try to use this dependency in JBoss 5.0.0.GA, the deployment fails because the Barrier is never started, it is only brought to the 'Create' state.
The log shows:
2009-01-05 10:05:47,651 DEBUG [BarrierController] (main:) [SubscriptionInfo { objectName='jboss.ha:service=HASingletonDeployer', handback=start, filter=javax.management.NotificationFilterSupport@110faff }, SubscriptionInfo { objectName='jboss.ha:service=HASingletonDeployer', handback=stop, filter=javax.management.NotificationFilterSupport@1ce7ceb }]
2009-01-05 10:05:47,651 DEBUG [BarrierController] (main:) Subscribing for JMX notifications, dynamic=false
2009-01-05 10:05:47,651 DEBUG [BarrierController] (main:) Could not subscribe to: 'jboss.ha:service=HASingletonDeployer', target or listener MBean not registered
2009-01-05 10:05:47,651 DEBUG [BarrierController] (main:) Could not subscribe to: 'jboss.ha:service=HASingletonDeployer', target or listener MBean not registered
2009-01-05 10:05:47,651 DEBUG [BarrierController] (main:) Created jboss.ha:service=HASingletonDeployer,type=BarrierControllerMBean
2009-01-05 10:05:47,651 DEBUG [ServiceController] (main:) Creating service jboss.ha:service=HASingletonDeployer,type=BarrierControllerMBean
...
...
2009-01-05 10:05:47,653 DEBUG [BarrierController] (main:) Starting jboss.ha:service=HASingletonDeployer,type=BarrierControllerMBean
2009-01-05 10:05:47,653 DEBUG [BarrierController] (main:) Started jboss.ha:service=HASingletonDeployer,type=BarrierControllerMBean
2009-01-05 10:05:47,654 DEBUG [ServiceController] (main:) starting service jboss.ha:service=HASingletonDeployer,type=BarrierControllerMBean
...
...
2009-01-05 10:06:28,791 ERROR [ProfileServiceBootstrap] (main:) Failed to load profile: Summary of incomplete deployments (SEE PREVIOUS ERRORS FOR DETAILS):
*** CONTEXTS MISSING DEPENDENCIES: Name -> Dependency{Required State:Actual State}
UserXS:service=myService
-> jboss.ha:service=HASingletonDeployer,type=Barrier{Start:Create}
*** CONTEXTS IN ERROR: Name -> Error
jboss.ha:service=HASingletonDeployer,type=Barrier -> Create
From what I see in the log, it seems that the BarrierController tries to subscribe to jmx notifications from HASingletonDeployer before the latter is registered.
I am using the original all/deploy/cluster/deploy-hasingleton-jboss-beans.xml file without changes.
Is this a known issue?
The error disappears and the Barrier gets started when I add a dependency to the BarrierController in deploy-hasingleton-jboss-beans.xml
<bean class="org.jboss.system.BarrierController" name="jboss.ha:service=HASingletonDeployer,type=BarrierController"> ... <depends>jboss.ha:service=HASingletonDeployer</depends> ...
Is this a right solution/workaround?
Thanks.
