Investigate event queue overloaded in repository

I am seeing stacktrace below when adding wikipedia docs via testsuite (5000 I added).

[INFO] [talledLocalContainer] 2016-06-17 15:57:54,912 WARN [http-nio-8080-exec-1] [org.apache.jackrabbit.core.observation.ObservationDispatcher.delayIfEventQueueOverloaded():252] More than 200000 events in the queue
[INFO] [talledLocalContainer] java.lang.Exception: Stack Trace
[INFO] [talledLocalContainer] at org.apache.jackrabbit.core.observation.ObservationDispatcher.delayIfEventQueueOverloaded(ObservationDispatcher.java:252)
[INFO] [talledLocalContainer] at org.apache.jackrabbit.core.session.SessionState.perform(SessionState.java:246)
[INFO] [talledLocalContainer] at org.apache.jackrabbit.core.ItemImpl.perform(ItemImpl.java:91)
[INFO] [talledLocalContainer] at org.apache.jackrabbit.core.NodeImpl.addNodeWithUuid(NodeImpl.java:1818)
[INFO] [talledLocalContainer] at org.apache.jackrabbit.core.NodeImpl.addNode(NodeImpl.java:1778)
[INFO] [talledLocalContainer] at org.hippoecm.repository.decorating.NodeDecorator.addNode(NodeDecorator.java:85)
[INFO] [talledLocalContainer] at org.hippoecm.hst.demo.components.NonWorkflowWikiImporterComponent$WikiPediaToJCRHandler.endElement(NonWorkflowWikiImporterComponent.java:423)
[INFO] [talledLocalContainer] at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
[INFO] [talledLocalContainer] at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanEndElement(Unknown Source)
[INFO] [talledLocalContainer] at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
[INFO] [talledLocalContainer] at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
[INFO] [talledLocalContainer] at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
[INFO] [talledLocalContainer] at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
[INFO] [talledLocalContainer] at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
[INFO] [talledLocalContainer] at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
[INFO] [talledLocalContainer] at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
[INFO] [talledLocalContainer] at org.apache.xerces.jaxp.SAXParserImpl.parse(Unknown Source)
[INFO] [talledLocalContainer] at javax.xml.parsers.SAXParser.parse(SAXParser.java:328)
[INFO] [talledLocalContainer] at org.hippoecm.hst.demo.components.NonWorkflowWikiImporterComponent.doAction(NonWorkflowWikiImporterComponent.java:204)
[INFO] [talledLocalContainer] at org.hippoecm.hst.core.container.HstComponentInvokerImpl.invokeAction(HstComponentInvokerImpl.java:86)
[INFO] [talledLocalContainer] at sun.reflect.GeneratedMethodAccessor146.invoke(Unknown Source)
[INFO] [talledLocalContainer] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[INFO] [talledLocalContainer] at java.lang.reflect.Method.invoke(Method.java:498)
[INFO] [talledLocalContainer] at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:302)
[INFO] [talledLocalContainer] at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)
[INFO] [talledLocalContainer] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
[INFO] [talledLocalContainer] at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:85)
[INFO] [talledLocalContainer] at org.hippoecm.hst.core.logging.HstComponentInvokerProfiler.profile(HstComponentInvokerProfiler.java:60)
[INFO] [talledLocalContainer] at sun.reflect.GeneratedMethodAccessor120.invoke(Unknown Source)
[INFO] [talledLocalContainer] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[INFO] [talledLocalContainer] at java.lang.reflect.Method.invoke(Method.java:498)
[INFO] [talledLocalContainer] at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:620)
[INFO] [talledLocalContainer] at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:609)
[INFO] [talledLocalContainer] at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:68)
[INFO] [talledLocalContainer] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
[INFO] [talledLocalContainer] at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:85)
[INFO] [talledLocalContainer] at org.hippoecm.hst.core.container.PersistableSessionAroundAdvice.invoke(PersistableSessionAroundAdvice.java:68)
[INFO] [talledLocalContainer] at sun.reflect.GeneratedMethodAccessor119.invoke(Unknown Source)
[INFO] [talledLocalContainer] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[INFO] [talledLocalContainer] at java.lang.reflect.Method.invoke(Method.java:498)
[INFO] [talledLocalContainer] at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:620)
[INFO] [talledLocalContainer] at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:609)
[INFO] [talledLocalContainer] at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:68)
[INFO] [talledLocalContainer] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
[INFO] [talledLocalContainer] at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
[INFO] [talledLocalContainer] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
[INFO] [talledLocalContainer] at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:208)
[INFO] [talledLocalContainer] at com.sun.proxy.$Proxy60.invokeAction(Unknown Source)
[INFO] [talledLocalContainer] at org.hippoecm.hst.core.container.ActionValve.invoke(ActionValve.java:59)
[INFO] [talledLocalContainer] at org.hippoecm.hst.core.container.HstSitePipeline$Invocation.invokeNext(HstSitePipeline.java:288)
[INFO] [talledLocalContainer] at org.hippoecm.hst.core.container.LocalizationValve.invoke(LocalizationValve.java:96)
[INFO] [talledLocalContainer] at org.hippoecm.hst.core.container.HstSitePipeline$Invocation.invokeNext(HstSitePipeline.java:288)
[INFO] [talledLocalContainer] at org.hippoecm.hst.core.container.ContextResolvingValve.invoke(ContextResolvingValve.java:101)
[INFO] [talledLocalContainer] at org.hippoecm.hst.core.container.HstSitePipeline$Invocation.invokeNext(HstSitePipeline.java:288)
[INFO] [talledLocalContainer] at org.hippoecm.hst.core.container.JCRSessionStatefulConcurrencyValve.invoke(JCRSessionStatefulConcurrencyValve.java:56)
[INFO] [talledLocalContainer] at org.hippoecm.hst.core.container.HstSitePipeline$Invocation.invokeNext(HstSitePipeline.java:288)
[INFO] [talledLocalContainer] at org.hippoecm.hst.core.container.SubjectBasedSessionValve.invoke(SubjectBasedSessionValve.java:58)
[INFO] [talledLocalContainer] at org.hippoecm.hst.core.container.HstSitePipeline$Invocation.invokeNext(HstSitePipeline.java:288)
[INFO] [talledLocalContainer] at org.hippoecm.hst.core.container.SecurityValve.invoke(SecurityValve.java:177)
[INFO] [talledLocalContainer] at org.hippoecm.hst.core.container.HstSitePipeline$Invocation.invokeNext(HstSitePipeline.java:288)
[INFO] [talledLocalContainer] at org.hippoecm.hst.demo.container.ExampleTagFilteringValve.invoke(ExampleTagFilteringValve.java:105)
[INFO] [talledLocalContainer] at org.hippoecm.hst.core.container.HstSitePipeline$Invocation.invokeNext(HstSitePipeline.java:288)
[INFO] [talledLocalContainer] at org.hippoecm.hst.core.container.CmsSecurityValve.invoke(CmsSecurityValve.java:87)
[INFO] [talledLocalContainer] at org.hippoecm.hst.core.container.HstSitePipeline$Invocation.invokeNext(HstSitePipeline.java:288)
[INFO] [talledLocalContainer] at org.hippoecm.hst.core.container.AbstractHttpsSchemeValve.invoke(AbstractHttpsSchemeValve.java:244)
[INFO] [talledLocalContainer] at org.hippoecm.hst.core.container.HstSitePipeline$Invocation.invokeNext(HstSitePipeline.java:288)
[INFO] [talledLocalContainer] at org.hippoecm.hst.core.container.InitializationValve.invoke(InitializationValve.java:50)
[INFO] [talledLocalContainer] at org.hippoecm.hst.core.container.HstSitePipeline$Invocation.invokeNext(HstSitePipeline.java:288)
[INFO] [talledLocalContainer] at org.hippoecm.hst.core.container.HstSitePipeline.invokeValves(HstSitePipeline.java:173)
[INFO] [talledLocalContainer] at org.hippoecm.hst.core.container.HstSitePipeline.invoke(HstSitePipeline.java:155)
[INFO] [talledLocalContainer] at org.hippoecm.hst.core.container.HstRequestProcessorImpl.processRequest(HstRequestProcessorImpl.java:79)
[INFO] [talledLocalContainer] at org.hippoecm.hst.container.HstDelegateeFilterBean.processResolvedSiteMapItem(HstDelegateeFilterBean.java:670)
[INFO] [talledLocalContainer] at org.hippoecm.hst.container.HstDelegateeFilterBean.doFilter(HstDelegateeFilterBean.java:359)
[INFO] [talledLocalContainer] at org.hippoecm.hst.container.DelegatingFilter.doFilter(DelegatingFilter.java:84)
[INFO] [talledLocalContainer] at org.hippoecm.hst.container.HstFilter.doFilter(HstFilter.java:51)
[INFO] [talledLocalContainer] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
[INFO] [talledLocalContainer] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
[INFO] [talledLocalContainer] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:121)
[INFO] [talledLocalContainer] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
[INFO] [talledLocalContainer] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
[INFO] [talledLocalContainer] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
[INFO] [talledLocalContainer] at org.hippoecm.hst.container.XSSUrlFilter.doFilter(XSSUrlFilter.java:52)
[INFO] [talledLocalContainer] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
[INFO] [talledLocalContainer] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
[INFO] [talledLocalContainer] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
[INFO] [talledLocalContainer] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
[INFO] [talledLocalContainer] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
[INFO] [talledLocalContainer] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
[INFO] [talledLocalContainer] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
[INFO] [talledLocalContainer] at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
[INFO] [talledLocalContainer] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
[INFO] [talledLocalContainer] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:528)
[INFO] [talledLocalContainer] at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1099)
[INFO] [talledLocalContainer] at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:670)
[INFO] [talledLocalContainer] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1520)
[INFO] [talledLocalContainer] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1476)
[INFO] [talledLocalContainer] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
[INFO] [talledLocalContainer] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
[INFO] [talledLocalContainer] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
[INFO] [talledLocalContainer] at java.lang.Thread.run(Thread.java:745)
[INFO] [talledLocalContainer] 2016-06-17 15:57:54,913 WARN [http-nio-8080-exec-1] [org.apache.jackrabbit.core.observation.ObservationDispatcher.delayIfEventQueueOverloaded():261] Waiting