Hi David and Colleagues, I have re-indexed discovery with -d, re-imported oai with -o and restarted tomcat then retried to harvest collection on our test server, I got error complaining about https://hdl.handle.net/10539/26028 , the item in question I have deleted from the system after receiving error and re-inxexed again but it is still coming on root cause of the oai error, is there any way harvester can by pass this item. I have also attached another error messages.
Regards, Lewatle On Wednesday, 13 February 2019 09:43:36 UTC+2, Lewatle Johannes Phaladi wrote: > > Hi DSpace Colleagues, > > When I tested my harvesting settings DSpace says settings are valid, but > when other repositories harvesting our side tries to harvest they get error > messages attached, on another attachment i just put screenshot of test I > have done on our dev dspace trying to harvest collection from Prod Dspace > site, TXT document contains error received when running import on another > dspace system as test. Your advise on this error is much appreciated! > > Regards, > Lewatle > -- All messages to this mailing list should adhere to the DuraSpace Code of Conduct: https://duraspace.org/about/policies/code-of-conduct/ --- You received this message because you are subscribed to the Google Groups "DSpace Community" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/dspace-community. For more options, visit https://groups.google.com/d/optout.
Collection ca2e4cb5-8034-442d-a98f-c7ff18b47b2a failed on harvest: Date: 2019/02/19 10:49 AM Status Flag: -1 Server returned HTTP response code: 500 for URL: http://wiredspace.wits.ac.za/oai/request?verb=ListRecords&resumptionToken=qdc%2F%2F2019-02-19T08%3A49%3A19Z%2Fcol_10539_104%2F100 Exception: java.io.IOException: Server returned HTTP response code: 500 for URL: http://wiredspace.wits.ac.za/oai/request?verb=ListRecords&resumptionToken=qdc%2F%2F2019-02-19T08%3A49%3A19Z%2Fcol_10539_104%2F100 at sun.reflect.GeneratedConstructorAccessor373.newInstance(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:526) at sun.net.www.protocol.http.HttpURLConnection$6.run(HttpURLConnection.java:1675) at sun.net.www.protocol.http.HttpURLConnection$6.run(HttpURLConnection.java:1673) at java.security.AccessController.doPrivileged(Native Method) at sun.net.www.protocol.http.HttpURLConnection.getChainedException(HttpURLConnection.java:1671) at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1244) at ORG.oclc.oai.harvester2.verb.HarvesterVerb.harvest(HarvesterVerb.java:249) at ORG.oclc.oai.harvester2.verb.HarvesterVerb.<init>(HarvesterVerb.java:183) at ORG.oclc.oai.harvester2.verb.ListRecords.<init>(ListRecords.java:67) at org.dspace.harvest.OAIHarvester.runHarvest(OAIHarvester.java:380) at org.dspace.app.xmlui.aspect.administrative.FlowContainerUtils.processRunCollectionHarvest(FlowContainerUtils.java:309) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.mozilla.javascript.MemberBox.invoke(MemberBox.java:155) at org.mozilla.javascript.NativeJavaMethod.call(NativeJavaMethod.java:243) at org.mozilla.javascript.Interpreter.interpretLoop(Interpreter.java:3237) at org.mozilla.javascript.Interpreter.interpret(Interpreter.java:2394) at org.mozilla.javascript.InterpretedFunction.call(InterpretedFunction.java:162) at org.mozilla.javascript.ContextFactory.doTopCall(ContextFactory.java:393) at org.mozilla.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:2834) at org.mozilla.javascript.InterpretedFunction.call(InterpretedFunction.java:160) at org.mozilla.javascript.Context.call(Context.java:538) at org.mozilla.javascript.ScriptableObject.callMethod(ScriptableObject.java:1833) at org.mozilla.javascript.ScriptableObject.callMethod(ScriptableObject.java:1803) at org.apache.cocoon.components.flow.javascript.fom.FOM_JavaScriptInterpreter.handleContinuation(FOM_JavaScriptInterpreter.java:698) at org.apache.cocoon.components.treeprocessor.sitemap.CallFunctionNode.invoke(CallFunctionNode.java:94) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:55) at org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:87) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:55) at org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:87) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78) at org.apache.cocoon.components.treeprocessor.sitemap.SelectNode.invoke(SelectNode.java:82) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78) at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:143) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78) at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:81) at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:239) at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.buildPipeline(ConcreteTreeProcessor.java:186) at org.apache.cocoon.components.treeprocessor.TreeProcessor.buildPipeline(TreeProcessor.java:260) at org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNode.java:107) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78) at org.apache.cocoon.components.treeprocessor.sitemap.SelectNode.invoke(SelectNode.java:87) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:55) at org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:87) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78) at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:143) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78) at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:81) at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:239) at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.buildPipeline(ConcreteTreeProcessor.java:186) at org.apache.cocoon.components.treeprocessor.TreeProcessor.buildPipeline(TreeProcessor.java:260) at org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNode.java:107) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:55) at org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:87) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78) at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:143) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78) at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:81) at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:239) at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.buildPipeline(ConcreteTreeProcessor.java:186) at org.apache.cocoon.components.treeprocessor.TreeProcessor.buildPipeline(TreeProcessor.java:260) at org.apache.cocoon.components.source.impl.SitemapSource.init(SitemapSource.java:277) at org.apache.cocoon.components.source.impl.SitemapSource.<init>(SitemapSource.java:148) at org.apache.cocoon.components.source.impl.SitemapSourceFactory.getSource(SitemapSourceFactory.java:62) at org.apache.cocoon.components.source.CocoonSourceResolver.resolveURI(CocoonSourceResolver.java:153) at org.apache.cocoon.components.source.CocoonSourceResolver.resolveURI(CocoonSourceResolver.java:183) at org.apache.cocoon.generation.FileGenerator.setup(FileGenerator.java:99) at org.dspace.app.xmlui.cocoon.AspectGenerator.setup(AspectGenerator.java:81) at sun.reflect.GeneratedMethodAccessor86.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71) at com.sun.proxy.$Proxy238.setup(Unknown Source) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.setupPipeline(AbstractProcessingPipeline.java:343) at org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.setupPipeline(AbstractCachingProcessingPipeline.java:710) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.preparePipeline(AbstractProcessingPipeline.java:466) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.prepareInternal(AbstractProcessingPipeline.java:480) at sun.reflect.GeneratedMethodAccessor130.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71) at com.sun.proxy.$Proxy237.prepareInternal(Unknown Source) at org.apache.cocoon.components.source.impl.SitemapSource.init(SitemapSource.java:292) at org.apache.cocoon.components.source.impl.SitemapSource.<init>(SitemapSource.java:148) at org.apache.cocoon.components.source.impl.SitemapSourceFactory.getSource(SitemapSourceFactory.java:62) at org.apache.cocoon.components.source.CocoonSourceResolver.resolveURI(CocoonSourceResolver.java:153) at org.apache.cocoon.components.source.CocoonSourceResolver.resolveURI(CocoonSourceResolver.java:183) at org.apache.cocoon.generation.FileGenerator.setup(FileGenerator.java:99) at org.dspace.app.xmlui.cocoon.AspectGenerator.setup(AspectGenerator.java:81) at sun.reflect.GeneratedMethodAccessor86.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71) at com.sun.proxy.$Proxy238.setup(Unknown Source) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.setupPipeline(AbstractProcessingPipeline.java:343) at org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.setupPipeline(AbstractCachingProcessingPipeline.java:710) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.preparePipeline(AbstractProcessingPipeline.java:466) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.prepareInternal(AbstractProcessingPipeline.java:480) at sun.reflect.GeneratedMethodAccessor130.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71) at com.sun.proxy.$Proxy237.prepareInternal(Unknown Source) at org.apache.cocoon.components.source.impl.SitemapSource.init(SitemapSource.java:292) at org.apache.cocoon.components.source.impl.SitemapSource.<init>(SitemapSource.java:148) at org.apache.cocoon.components.source.impl.SitemapSourceFactory.getSource(SitemapSourceFactory.java:62) at org.apache.cocoon.components.source.CocoonSourceResolver.resolveURI(CocoonSourceResolver.java:153) at org.apache.cocoon.components.source.CocoonSourceResolver.resolveURI(CocoonSourceResolver.java:183) at org.apache.cocoon.generation.FileGenerator.setup(FileGenerator.java:99) at org.dspace.app.xmlui.cocoon.AspectGenerator.setup(AspectGenerator.java:81) at sun.reflect.GeneratedMethodAccessor86.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71) at com.sun.proxy.$Proxy238.setup(Unknown Source) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.setupPipeline(AbstractProcessingPipeline.java:343) at org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.setupPipeline(AbstractCachingProcessingPipeline.java:710) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.preparePipeline(AbstractProcessingPipeline.java:466) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.prepareInternal(AbstractProcessingPipeline.java:480) at sun.reflect.GeneratedMethodAccessor130.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71) at com.sun.proxy.$Proxy237.prepareInternal(Unknown Source) at org.apache.cocoon.components.source.impl.SitemapSource.init(SitemapSource.java:292) at org.apache.cocoon.components.source.impl.SitemapSource.<init>(SitemapSource.java:148) at org.apache.cocoon.components.source.impl.SitemapSourceFactory.getSource(SitemapSourceFactory.java:62) at org.apache.cocoon.components.source.CocoonSourceResolver.resolveURI(CocoonSourceResolver.java:153) at org.apache.cocoon.components.source.CocoonSourceResolver.resolveURI(CocoonSourceResolver.java:183) at org.apache.cocoon.generation.FileGenerator.setup(FileGenerator.java:99) at org.dspace.app.xmlui.cocoon.AspectGenerator.setup(AspectGenerator.java:81) at sun.reflect.GeneratedMethodAccessor86.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71) at com.sun.proxy.$Proxy238.setup(Unknown Source) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.setupPipeline(AbstractProcessingPipeline.java:343) at org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.setupPipeline(AbstractCachingProcessingPipeline.java:710) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.preparePipeline(AbstractProcessingPipeline.java:466) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.prepareInternal(AbstractProcessingPipeline.java:480) at sun.reflect.GeneratedMethodAccessor130.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71) at com.sun.proxy.$Proxy237.prepareInternal(Unknown Source) at org.apache.cocoon.components.source.impl.SitemapSource.init(SitemapSource.java:292) at org.apache.cocoon.components.source.impl.SitemapSource.<init>(SitemapSource.java:148) at org.apache.cocoon.components.source.impl.SitemapSourceFactory.getSource(SitemapSourceFactory.java:62) at org.apache.cocoon.components.source.CocoonSourceResolver.resolveURI(CocoonSourceResolver.java:153) at org.apache.cocoon.components.source.CocoonSourceResolver.resolveURI(CocoonSourceResolver.java:183) at org.apache.cocoon.generation.FileGenerator.setup(FileGenerator.java:99) at org.dspace.app.xmlui.cocoon.AspectGenerator.setup(AspectGenerator.java:81) at sun.reflect.GeneratedMethodAccessor86.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71) at com.sun.proxy.$Proxy238.setup(Unknown Source) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.setupPipeline(AbstractProcessingPipeline.java:343) at org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.setupPipeline(AbstractCachingProcessingPipeline.java:710) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.preparePipeline(AbstractProcessingPipeline.java:466) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.prepareInternal(AbstractProcessingPipeline.java:480) at sun.reflect.GeneratedMethodAccessor130.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71) at com.sun.proxy.$Proxy237.prepareInternal(Unknown Source) at org.apache.cocoon.components.source.impl.SitemapSource.init(SitemapSource.java:292) at org.apache.cocoon.components.source.impl.SitemapSource.<init>(SitemapSource.java:148) at org.apache.cocoon.components.source.impl.SitemapSourceFactory.getSource(SitemapSourceFactory.java:62) at org.apache.cocoon.components.source.CocoonSourceResolver.resolveURI(CocoonSourceResolver.java:153) at org.apache.cocoon.components.source.CocoonSourceResolver.resolveURI(CocoonSourceResolver.java:183) at org.apache.cocoon.generation.FileGenerator.setup(FileGenerator.java:99) at sun.reflect.GeneratedMethodAccessor86.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71) at com.sun.proxy.$Proxy238.setup(Unknown Source) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.setupPipeline(AbstractProcessingPipeline.java:343) at org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.setupPipeline(AbstractCachingProcessingPipeline.java:710) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.preparePipeline(AbstractProcessingPipeline.java:466) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:411) at sun.reflect.GeneratedMethodAccessor147.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71) at com.sun.proxy.$Proxy237.process(Unknown Source) at org.apache.cocoon.components.treeprocessor.sitemap.SerializeNode.invoke(SerializeNode.java:147) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:55) at org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:87) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78) at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:143) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78) at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:81) at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:239) at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:171) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:247) at org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNode.java:117) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:55) at org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:87) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78) at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:143) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78) at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:81) at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:239) at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:171) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:247) at org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNode.java:117) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78) at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:143) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78) at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:81) at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:239) at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:171) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:247) at org.apache.cocoon.servlet.RequestProcessor.process(RequestProcessor.java:351) at org.apache.cocoon.servlet.RequestProcessor.service(RequestProcessor.java:169) at org.apache.cocoon.sitemap.SitemapServlet.service(SitemapServlet.java:84) at javax.servlet.http.HttpServlet.service(HttpServlet.java:727) at org.apache.cocoon.servletservice.ServletServiceContext$PathDispatcher.forward(ServletServiceContext.java:468) at org.apache.cocoon.servletservice.ServletServiceContext$PathDispatcher.forward(ServletServiceContext.java:443) at org.apache.cocoon.servletservice.spring.ServletFactoryBean$ServiceInterceptor.invoke(ServletFactoryBean.java:264) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204) at com.sun.proxy.$Proxy234.service(Unknown Source) at org.dspace.springmvc.CocoonView.render(CocoonView.java:113) at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1216) at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1001) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:945) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:867) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:951) at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:853) at javax.servlet.http.HttpServlet.service(HttpServlet.java:646) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:827) at javax.servlet.http.HttpServlet.service(HttpServlet.java:727) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.dspace.app.xmlui.cocoon.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:113) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.dspace.app.xmlui.cocoon.DSpaceCocoonServletFilter.doFilter(DSpaceCocoonServletFilter.java:160) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.dspace.app.xmlui.cocoon.servlet.multipart.DSpaceMultipartFilter.doFilter(DSpaceMultipartFilter.java:119) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.dspace.utils.servlet.DSpaceWebappServletFilter.doFilter(DSpaceWebappServletFilter.java:78) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:313) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:744) Caused by: java.io.IOException: Server returned HTTP response code: 500 for URL: http://wiredspace.wits.ac.za/oai/request?verb=ListRecords&resumptionToken=qdc%2F%2F2019-02-19T08%3A49%3A19Z%2Fcol_10539_104%2F100 at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1626) at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:468) at ORG.oclc.oai.harvester2.verb.HarvesterVerb.harvest(HarvesterVerb.java:209) ... 260 more
Type Exception Report Message com.lyncode.xoai.dataprovider.exceptions.WritingXmlException: Error trying to output '<qdc:qualifieddc xmlns:qdc="http://dspace.org/qualifieddc/"; xmlns:doc="http://www.lyncode.com/xoai"; xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; xmlns:dcterms="http://purl.org/dc/terms/"; xmlns:dc="http://purl.org/dc/elements/1.1/"; xsi:schemaLocation="http://purl.org/dc/elements/1.1/ http://dublincore.org/schemas/xmls/qdc/2006/01/06/dc.xsd http://purl.org/dc/terms/ http://dublincore.org/schemas/xmls/qdc/2006/01/06/dcterms.xsd http://dspace.org/qualifieddc/ http://www.ukoln.ac.uk/metadata/dcmi/xmlschema/qualifieddc.xsd";> Description The server encountered an unexpected condition that prevented it from fulfilling the request. Exception java.io.IOException: com.lyncode.xoai.dataprovider.exceptions.WritingXmlException: Error trying to output '<qdc:qualifieddc xmlns:qdc="http://dspace.org/qualifieddc/"; xmlns:doc="http://www.lyncode.com/xoai"; xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; xmlns:dcterms="http://purl.org/dc/terms/"; xmlns:dc="http://purl.org/dc/elements/1.1/"; xsi:schemaLocation="http://purl.org/dc/elements/1.1/ http://dublincore.org/schemas/xmls/qdc/2006/01/06/dc.xsd http://purl.org/dc/terms/ http://dublincore.org/schemas/xmls/qdc/2006/01/06/dcterms.xsd http://dspace.org/qualifieddc/ http://www.ukoln.ac.uk/metadata/dcmi/xmlschema/qualifieddc.xsd";> <dc:title>Cost evaluation of different medium solids for air dense medium fluidized bed coal separation</dc:title> <dc:creator>Chagwedera, Kundayi Marshall</dc:creator> <dcterms:abstract>Dense medium processing of high-ash coals with liquid dense media (water and magnetite) is currently the conventional means of beneficiating coal in South Africa (SA)). Hence, large volumes of waste water are produced along with a high cost of treating this effluent, both factors of which constitute a major disadvantage to this technique. This study presents an experimental account of Air Dense Medium Fluidized Bed (ADMFB) as an alternative dry processing approach for beneficiating SA coals. Magnetite is the conventional medium in ADMFB application this medium material is costly and limited in quantity. Pyrrhotite, granulated blast-furnace slag, silica sand and coal discards were investigated as alternative air dense medium materials to either replace or augment magnetite. Each of the materials utilized was prepared for a specific size range (-425+106 µm) and characterised according to their physical properties. The materials were then tested individually, first as sole fluidized media followed by further tests where the materials were blended in various proportions. The purpose was to establish their fluidization characteristics and suitability for coal separation. Uniformity and stability of the bed density were considered the key performance parameters for facilitating coal quality separations and therefore these were used as the main criteria for selecting the potential best medium material. Initial beneficiation tests with density tracers in lieu of coal were used for the purpose of optimizing operating parameters and separation efficiency for each of the media utilized. Based on the results obtained from the trial tests, coal was then tested in the ADMFB fluidized bed separator. Magnetite and pyrrhotite, individually, provided the most uniform and stable bed densities with bed density variation less than 0.7% and standard deviation less than 0.0025 g/cm3. A 100% magnetite bed produced a clean coal product with an ash content of 20.30% and calorific value of 25.24 MJ/kg from a feed coal (-13+6 mm size fraction) of 39.27% ash and CV of 18.76 MJ/kg. The bed’s cut-point/separation density (��50) was 1.82 g/cm3 while coal product yield and Ep of 60.26 – 60.89% and 0.070 – 0.075, respectively were obtained. A cleaner coal product with 14.50% ash and a calorific value of 27.30 MJ/kg was obtained from a blend of pyrrhotite and magnetite at a weight ratio (%) of 40:60. The same blend reduced the total sulphur content in the feed coal from 2.49% to 0.41% sulphur at a cut density of 1.63 g/cm3, with a yield and Ep of 52.67% and 0.083, respectively. Pyrrhotite appears to be the most superior dense medium material amongst the materials tested as an alternative media to magnetite. More uniform and stable bed densities were achieved using the pyrrhotite-magnetite (40:60) blend, compared to these materials as individual media alone. A cleaner coal product with less ash and sulphur content was obtained from this blend compared to using magnetite as the sole medium. From an economic perspective, the partial replacement of magnetite by blending with pyrrhotite ore, which is considered a reject “no cost rejects material”, is likely to reduce the cost of operating a coal ADMFB process to a considerable extent and may well prove this process to be more sustainable in future.</dcterms:abstract> <dcterms:dateAccepted>2018-11-14T07:24:29Z</dcterms:dateAccepted> <dcterms:available>2018-11-14T07:24:29Z</dcterms:available> <dcterms:created>2018-11-14T07:24:29Z</dcterms:created> <dcterms:issued>2017</dcterms:issued> <dc:type>Thesis</dc:type> <dc:identifier>https://hdl.handle.net/10539/26028</dc:identifier> <dc:language>en</dc:language> </qdc:qualifieddc> ' org.dspace.xoai.services.impl.cache.DSpaceXOAICacheService.store(DSpaceXOAICacheService.java:113) org.dspace.xoai.controller.DSpaceOAIDataProvider.contextAction(DSpaceOAIDataProvider.java:104) sun.reflect.GeneratedMethodAccessor575.invoke(Unknown Source) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.lang.reflect.Method.invoke(Method.java:606) org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215) org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132) org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:743) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:672) org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:82) org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:933) org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:867) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:951) org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:842) javax.servlet.http.HttpServlet.service(HttpServlet.java:635) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:827) javax.servlet.http.HttpServlet.service(HttpServlet.java:742) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) Root Cause com.lyncode.xoai.dataprovider.exceptions.WritingXmlException: Error trying to output '<qdc:qualifieddc xmlns:qdc="http://dspace.org/qualifieddc/"; xmlns:doc="http://www.lyncode.com/xoai"; xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; xmlns:dcterms="http://purl.org/dc/terms/"; xmlns:dc="http://purl.org/dc/elements/1.1/"; xsi:schemaLocation="http://purl.org/dc/elements/1.1/ http://dublincore.org/schemas/xmls/qdc/2006/01/06/dc.xsd http://purl.org/dc/terms/ http://dublincore.org/schemas/xmls/qdc/2006/01/06/dcterms.xsd http://dspace.org/qualifieddc/ http://www.ukoln.ac.uk/metadata/dcmi/xmlschema/qualifieddc.xsd";> <dc:title>Cost evaluation of different medium solids for air dense medium fluidized bed coal separation</dc:title> <dc:creator>Chagwedera, Kundayi Marshall</dc:creator> <dcterms:abstract>Dense medium processing of high-ash coals with liquid dense media (water and magnetite) is currently the conventional means of beneficiating coal in South Africa (SA)). Hence, large volumes of waste water are produced along with a high cost of treating this effluent, both factors of which constitute a major disadvantage to this technique. This study presents an experimental account of Air Dense Medium Fluidized Bed (ADMFB) as an alternative dry processing approach for beneficiating SA coals. Magnetite is the conventional medium in ADMFB application this medium material is costly and limited in quantity. Pyrrhotite, granulated blast-furnace slag, silica sand and coal discards were investigated as alternative air dense medium materials to either replace or augment magnetite. Each of the materials utilized was prepared for a specific size range (-425+106 µm) and characterised according to their physical properties. The materials were then tested individually, first as sole fluidized media followed by further tests where the materials were blended in various proportions. The purpose was to establish their fluidization characteristics and suitability for coal separation. Uniformity and stability of the bed density were considered the key performance parameters for facilitating coal quality separations and therefore these were used as the main criteria for selecting the potential best medium material. Initial beneficiation tests with density tracers in lieu of coal were used for the purpose of optimizing operating parameters and separation efficiency for each of the media utilized. Based on the results obtained from the trial tests, coal was then tested in the ADMFB fluidized bed separator. Magnetite and pyrrhotite, individually, provided the most uniform and stable bed densities with bed density variation less than 0.7% and standard deviation less than 0.0025 g/cm3. A 100% magnetite bed produced a clean coal product with an ash content of 20.30% and calorific value of 25.24 MJ/kg from a feed coal (-13+6 mm size fraction) of 39.27% ash and CV of 18.76 MJ/kg. The bed’s cut-point/separation density (��50) was 1.82 g/cm3 while coal product yield and Ep of 60.26 – 60.89% and 0.070 – 0.075, respectively were obtained. A cleaner coal product with 14.50% ash and a calorific value of 27.30 MJ/kg was obtained from a blend of pyrrhotite and magnetite at a weight ratio (%) of 40:60. The same blend reduced the total sulphur content in the feed coal from 2.49% to 0.41% sulphur at a cut density of 1.63 g/cm3, with a yield and Ep of 52.67% and 0.083, respectively. Pyrrhotite appears to be the most superior dense medium material amongst the materials tested as an alternative media to magnetite. More uniform and stable bed densities were achieved using the pyrrhotite-magnetite (40:60) blend, compared to these materials as individual media alone. A cleaner coal product with less ash and sulphur content was obtained from this blend compared to using magnetite as the sole medium. From an economic perspective, the partial replacement of magnetite by blending with pyrrhotite ore, which is considered a reject “no cost rejects material”, is likely to reduce the cost of operating a coal ADMFB process to a considerable extent and may well prove this process to be more sustainable in future.</dcterms:abstract> <dcterms:dateAccepted>2018-11-14T07:24:29Z</dcterms:dateAccepted> <dcterms:available>2018-11-14T07:24:29Z</dcterms:available> <dcterms:created>2018-11-14T07:24:29Z</dcterms:created> <dcterms:issued>2017</dcterms:issued> <dc:type>Thesis</dc:type> <dc:identifier>https://hdl.handle.net/10539/26028</dc:identifier> <dc:language>en</dc:language> </qdc:qualifieddc> ' com.lyncode.xoai.dataprovider.xml.EchoElement.write(EchoElement.java:58) com.lyncode.xoai.dataprovider.xml.oaipmh.MetadataType.write(MetadataType.java:78) com.lyncode.xoai.dataprovider.xml.oaipmh.RecordType.write(RecordType.java:130) com.lyncode.xoai.dataprovider.xml.oaipmh.ListRecordsType.write(ListRecordsType.java:110) com.lyncode.xoai.util.XmlIOUtils.writeElement(XmlIOUtils.java:20) com.lyncode.xoai.dataprovider.xml.oaipmh.OAIPMHtype.write(OAIPMHtype.java:286) com.lyncode.xoai.dataprovider.xml.oaipmh.OAIPMH.write(OAIPMH.java:44) org.dspace.xoai.services.impl.cache.DSpaceXOAICacheService.store(DSpaceXOAICacheService.java:97) org.dspace.xoai.controller.DSpaceOAIDataProvider.contextAction(DSpaceOAIDataProvider.java:104) sun.reflect.GeneratedMethodAccessor575.invoke(Unknown Source) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.lang.reflect.Method.invoke(Method.java:606) org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215) org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132) org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:743) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:672) org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:82) org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:933) org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:867) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:951) org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:842) javax.servlet.http.HttpServlet.service(HttpServlet.java:635) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:827) javax.servlet.http.HttpServlet.service(HttpServlet.java:742) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) Root Cause com.ctc.wstx.exc.WstxParsingException: Illegal character entity: expansion character (code 0xd835) not a valid XML character at [row,col {unknown-source}]: [5,423] com.ctc.wstx.sr.StreamScanner.constructWfcException(StreamScanner.java:605) com.ctc.wstx.sr.StreamScanner.throwParseError(StreamScanner.java:461) com.ctc.wstx.sr.StreamScanner.reportIllegalChar(StreamScanner.java:2375) com.ctc.wstx.sr.StreamScanner.checkAndExpandChar(StreamScanner.java:2295) com.ctc.wstx.sr.StreamScanner.resolveSimpleEntity(StreamScanner.java:1180) com.ctc.wstx.sr.BasicStreamReader.readTextSecondary(BasicStreamReader.java:4675) com.ctc.wstx.sr.BasicStreamReader.readCoalescedText(BasicStreamReader.java:4124) com.ctc.wstx.sr.BasicStreamReader.finishToken(BasicStreamReader.java:3699) com.ctc.wstx.sr.BasicStreamReader.next(BasicStreamReader.java:1023) com.ctc.wstx.evt.WstxEventReader.nextEvent(WstxEventReader.java:196) com.lyncode.xoai.dataprovider.xml.EchoElement.write(EchoElement.java:31) com.lyncode.xoai.dataprovider.xml.oaipmh.MetadataType.write(MetadataType.java:78) com.lyncode.xoai.dataprovider.xml.oaipmh.RecordType.write(RecordType.java:130) com.lyncode.xoai.dataprovider.xml.oaipmh.ListRecordsType.write(ListRecordsType.java:110) com.lyncode.xoai.util.XmlIOUtils.writeElement(XmlIOUtils.java:20) com.lyncode.xoai.dataprovider.xml.oaipmh.OAIPMHtype.write(OAIPMHtype.java:286) com.lyncode.xoai.dataprovider.xml.oaipmh.OAIPMH.write(OAIPMH.java:44) org.dspace.xoai.services.impl.cache.DSpaceXOAICacheService.store(DSpaceXOAICacheService.java:97) org.dspace.xoai.controller.DSpaceOAIDataProvider.contextAction(DSpaceOAIDataProvider.java:104) sun.reflect.GeneratedMethodAccessor575.invoke(Unknown Source) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.lang.reflect.Method.invoke(Method.java:606) org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215) org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132) org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:743) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:672) org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:82) org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:933) org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:867) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:951) org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:842) javax.servlet.http.HttpServlet.service(HttpServlet.java:635) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:827) javax.servlet.http.HttpServlet.service(HttpServlet.java:742) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) Note The full stack trace of the root cause is available in the server logs. Apache Tomcat/8.5.24
