Hi Malaka, Above is the complete stack trace shown in the ESB log. The axis2 servers seem to be in a cluster as they communicate when nodes are added and released.
On Mon, Dec 9, 2013 at 2:42 PM, Malaka Silva <[email protected]> wrote: > Hi Tharindu, > > Did you also get the following error? > > ERROR - Axis2LoadBalanceMembershipHandler A LoadBalanceEventHandler has > not been specified in the axis2.xml file for the domain > apache.axis2.application.domain > > > Best Regards, > Malaka > > > On Mon, Dec 9, 2013 at 1:58 PM, Tharindu Perera <[email protected]>wrote: > >> 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? >> >> _______________________________________________ >> Dev mailing list >> [email protected] >> http://wso2.org/cgi-bin/mailman/listinfo/dev >> >> > > > -- > > Best Regards, > > Malaka Silva > Senior Tech Lead > M: +94 777 219 791 > Tel : 94 11 214 5345 > Fax :94 11 2145300 > LinkedIn : http://www.linkedin.com/pub/malaka-silva/6/33/77 > Blog : http://mrmalakasilva.blogspot.com/ > > WSO2, Inc. > lean . enterprise . middleware > http://www.wso2.com/ > http://www.wso2.com/about/team/malaka-silva/<http://wso2.com/about/team/malaka-silva/> > > Save a tree -Conserve nature & Save the world for your future. Print this > email only if it is absolutely necessary. >
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