I see the below error in ParentComponentMonitor:
[2014-12-12 11:25:08,103] 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.markInstanceAsInactive(ParentComponentMonitor.java:508)
at
org.apache.stratos.autoscaler.monitor.component.ApplicationMonitor.onChildStatusEvent(ApplicationMonitor.java:140)
at
org.apache.stratos.autoscaler.monitor.events.builder.MonitorStatusEventBuilder.notifyParent(MonitorStatusEventBuilder.java:64)
at
org.apache.stratos.autoscaler.monitor.events.builder.MonitorStatusEventBuilder.handleClusterStatusEvent(MonitorStatusEventBuilder.java:40)
at
org.apache.stratos.autoscaler.monitor.cluster.AbstractClusterMonitor.notifyParentMonitor(AbstractClusterMonitor.java:220)
at
org.apache.stratos.autoscaler.event.receiver.topology.AutoscalerTopologyEventReceiver$6.onEvent(AutoscalerTopologyEventReceiver.java:235)
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
