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https://issues.apache.org/jira/browse/STRATOS-107?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13800162#comment-13800162
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Nirmal Fernando commented on STRATOS-107:
-----------------------------------------
Imesh,
I'm getting an NPE with your latest fixes. Did you miss a commit?
[2013-10-20 22:52:48,559] ERROR - NativeWorkerPool Uncaught exception
java.lang.NullPointerException
at
org.apache.stratos.lb.endpoint.algorithm.RoundRobin.getNextMember(RoundRobin.java:47)
at
org.apache.stratos.lb.endpoint.RequestProcessor.findNextMember(RequestProcessor.java:67)
at
org.apache.stratos.lb.endpoint.endpoint.TenantAwareLoadBalanceEndpoint.findNextMember(TenantAwareLoadBalanceEndpoint.java:156)
at
org.apache.stratos.lb.endpoint.endpoint.TenantAwareLoadBalanceEndpoint.send(TenantAwareLoadBalanceEndpoint.java:107)
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.axis2.transport.http.util.RESTUtil.invokeAxisEngine(RESTUtil.java:144)
at
org.apache.axis2.transport.http.util.RESTUtil.processURLRequest(RESTUtil.java:139)
at
org.apache.synapse.transport.nhttp.util.RESTUtil.processGetAndDeleteRequest(RESTUtil.java:146)
at
org.apache.synapse.transport.nhttp.DefaultHttpGetProcessor.processGetAndDelete(DefaultHttpGetProcessor.java:464)
at
org.wso2.carbon.transport.nhttp.api.NHttpGetProcessor.process(NHttpGetProcessor.java:296)
at
org.apache.synapse.transport.nhttp.ServerWorker.run(ServerWorker.java:272)
at
org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(NativeWorkerPool.java:172)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
--
Best Regards,
Nirmal
Nirmal Fernando.
PPMC Member & Committer of Apache Stratos,
Senior Software Engineer, WSO2 Inc.
Blog: http://nirmalfdo.blogspot.com/
> Implement Load Balancing Algorithm Interface and Round Robin Implementation
> ---------------------------------------------------------------------------
>
> Key: STRATOS-107
> URL: https://issues.apache.org/jira/browse/STRATOS-107
> Project: Stratos
> Issue Type: Sub-task
> Reporter: Imesh Gunaratne
> Assignee: Imesh Gunaratne
> Fix For: 4.0.0 M1
>
>
> The previous version of the Stratos Load Balancer used Apache
> Synapse/Axis2/Tribes clustering feature for communicating with its
> application members. As a result load balancing algorithm was implemented
> using Axis2. This algorithm interface is tightly coupled with Axis2 members.
> The idea of this task is to implement a generic algorithm interface which is
> not coupled with Axis2 so that load balancing specific features will be
> loosely coupled with its foundation components.
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