Hi all, when running ESB Sample 57: Dynamic load balancing between 3 nodes<http://docs.wso2.org/display/ESB480/Sample+57%3A+Dynamic+load+balancing+between+3+nodes>
I cannot seem to configure the cluster properly. I have edited the axis2.xml and set both mcastBindAddress , localMemberHost to 127.0.0.1 and enabled clustering. After running the ESB in the specific setup It does not communicate with the cluster. This is the Error that is logged [2013-12-09 13:44:20,004] ERROR - NativeWorkerPool Uncaught exception java.lang.NullPointerException at org.apache.synapse.core.axis2.Axis2LoadBalanceMembershipHandler.getNextApplicationMember(Axis2LoadBalanceMembershipHandler.java:92) at org.apache.synapse.endpoints.DynamicLoadbalanceEndpoint.send(DynamicLoadbalanceEndpoint.java:157) at org.apache.synapse.mediators.builtin.SendMediator.mediate(SendMediator.java:95) at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:71) at org.apache.synapse.mediators.filters.InMediator.mediate(InMediator.java:55) at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:71) at org.apache.synapse.mediators.base.SequenceMediator.mediate(SequenceMediator.java:114) at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.injectMessage(Axis2SynapseEnvironment.java:199) at org.apache.synapse.core.axis2.SynapseMessageReceiver.receive(SynapseMessageReceiver.java:83) at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180) at org.apache.synapse.transport.passthru.ServerWorker.processEntityEnclosingRequest(ServerWorker.java:404) at org.apache.synapse.transport.passthru.ServerWorker.run(ServerWorker.java:184) at org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(NativeWorkerPool.java:172) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:722) What coulld be the problem? Do I have to configure the ESB in some way?
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