Hi Christ, In which node your are getting this exception? Is it in Gateway or Store? Additionally, how do you configure DAS? Through REST Client or RDBMS [1]?
BTW, you can use Stackoverflow [2] or [email protected] mailing list in future for any clarification regarding WSO2 queries. [1] : https://docs.wso2.com/display/AM1100/Publishing+API+Runtime+Statistics [2] : http://stackoverflow.com/questions/tagged/wso2 On Sun, Oct 16, 2016 at 7:53 PM, christ Feng <[email protected]> wrote: > hi , abimaran. I have one problem wanna ask you . > My APIM version is 1.10.0 and DAS is 3.0.1 > > 1. > > I Clustering APIM divide into 4 part,publisher,store,keymanager, > gataway. And use DAS for stats. Database is mysql. > 2. > > I set the connection between APIM and DAS on publisher node. > 3. > > When I invoke an api ,APIM console give error as below. > > error: > > [2016-10-13 11:13:54,775] ERROR - APIMgtUsageHandler Cannot publish event. > null > java.lang.NullPointerException > at > org.wso2.carbon.apimgt.usage.publisher.APIMgtUsageDataBridgeDataPublisher.publishEvent(APIMgtUsageDataBridgeDataPublisher.java:124) > at > org.wso2.carbon.apimgt.usage.publisher.APIMgtUsageHandler.handleRequest(APIMgtUsageHandler.java:169) > at org.apache.synapse.rest.API.process(API.java:322) > at > org.apache.synapse.rest.RESTRequestHandler.dispatchToAPI(RESTRequestHandler.java:86) > at > org.apache.synapse.rest.RESTRequestHandler.process(RESTRequestHandler.java:65) > at > org.apache.synapse.core.axis2.Axis2SynapseEnvironment.injectMessage(Axis2SynapseEnvironment.java:295) > 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.processNonEntityEnclosingRESTHandler(ServerWorker.java:317) > at > org.apache.synapse.transport.passthru.ServerWorker.run(ServerWorker.java:149) > at > org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(NativeWorkerPool.java:172) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > at java.lang.Thread.run(Thread.java:745) > [2016-10-13 11:13:54,807] ERROR - APIMgtResponseHandler Cannot publish > response event. null > java.lang.NullPointerException > at > org.wso2.carbon.apimgt.usage.publisher.APIMgtUsageDataBridgeDataPublisher.publishEvent(APIMgtUsageDataBridgeDataPublisher.java:140) > at > org.wso2.carbon.apimgt.usage.publisher.APIMgtResponseHandler.mediate(APIMgtResponseHandler.java:211) > at > org.apache.synapse.mediators.ext.ClassMediator.mediate(ClassMediator.java:84) > at > org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:81) > at > org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:48) > at > org.apache.synapse.mediators.base.SequenceMediator.mediate(SequenceMediator.java:155) > at org.apache.synapse.rest.Resource.process(Resource.java:297) > at org.apache.synapse.rest.API.process(API.java:335) > at > org.apache.synapse.rest.RESTRequestHandler.dispatchToAPI(RESTRequestHandler.java:86) > at > org.apache.synapse.rest.RESTRequestHandler.process(RESTRequestHandler.java:52) > at > org.apache.synapse.core.axis2.Axis2SynapseEnvironment.injectMessage(Axis2SynapseEnvironment.java:295) > at > org.apache.synapse.core.axis2.SynapseCallbackReceiver.handleMessage(SynapseCallbackReceiver.java:529) > at > org.apache.synapse.core.axis2.SynapseCallbackReceiver.receive(SynapseCallbackReceiver.java:172) > at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180) > at > org.apache.synapse.transport.passthru.ClientWorker.run(ClientWorker.java:251) > at > org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(NativeWorkerPool.java:172) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > at java.lang.Thread.run(Thread.java:745) > > I am glad to hear something from you . > > -- Thanks Abimaran Kugathasan Senior Software Engineer - API Technologies Email : [email protected] Mobile : +94 773922820 <http://stackoverflow.com/users/515034> <http://lk.linkedin.com/in/abimaran> <http://www.lkabimaran.blogspot.com/> <https://github.com/abimarank> <https://twitter.com/abimaran>
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