Hi Imesh,
Seems like monitor is not available for the given cluster ID/group alias. I
guess some monitors in the application are not create correctly.
Thanks,
Gayan
On Wed, Feb 18, 2015 at 12:02 AM, Imesh Gunaratne <im...@apache.org> wrote:
> Hi Devs,
>
> I see the below NPE:
>
> [2015-02-17 23:59:32,774] ERROR
> {org.apache.stratos.messaging.message.receiver.topology.TopologyEventMessageDelegator}
> - Failed to retrieve topology event message
> java.lang.NullPointerException
> at
> org.apache.stratos.autoscaler.monitor.component.ParentComponentMonitor.allDependentTerminated(ParentComponentMonitor.java:499)
> at
> org.apache.stratos.autoscaler.monitor.component.ParentComponentMonitor.onChildTerminatedEvent(ParentComponentMonitor.java:444)
> at
> org.apache.stratos.autoscaler.monitor.component.GroupMonitor.onTerminationOfInstance(GroupMonitor.java:408)
> at
> org.apache.stratos.autoscaler.monitor.component.GroupMonitor.onChildStatusEvent(GroupMonitor.java:391)
> at
> org.apache.stratos.autoscaler.monitor.events.builder.MonitorStatusEventBuilder.notifyParent(MonitorStatusEventBuilder.java:85)
> at
> org.apache.stratos.autoscaler.monitor.events.builder.MonitorStatusEventBuilder.handleClusterStatusEvent(MonitorStatusEventBuilder.java:40)
> at
> org.apache.stratos.autoscaler.monitor.cluster.ClusterMonitor.notifyParentMonitor(ClusterMonitor.java:210)
> at
> org.apache.stratos.autoscaler.event.receiver.topology.AutoscalerTopologyEventReceiver$8.onEvent(AutoscalerTopologyEventReceiver.java:300)
> at
> org.apache.stratos.messaging.listener.EventListener.update(EventListener.java:42)
> at java.util.Observable.notifyObservers(Observable.java:159)
>
>
> --
> Imesh Gunaratne
>
> Technical Lead, WSO2
> Committer & PMC Member, Apache Stratos
>
--
Gayan Gunarathne
Technical Lead
WSO2 Inc. (http://wso2.com)
email : gay...@wso2.com | mobile : +94 766819985
