Hi Humberto,

This is a new error to me. But, since Solr is running, it's possible that
it's just your DSpace configuration that has gotten messed up.

You might want to double check that your "discovery.search.server"
configuration is set properly:
https://github.com/DSpace/DSpace/blob/dspace-6_x/dspace/config/modules/discovery.cfg#L8

And check that your "solr.server" configuration is set properly:
https://github.com/DSpace/DSpace/blob/dspace-6_x/dspace/config/dspace.cfg#L59


Those settings tell DSpace where Solr should be accessible. So, if one of
those is missing or set improperly, then DSpace may throw errors, even if
Solr is running.

That's just a guess...but, maybe someone else will have other ideas on this
list.

Tim

On Thu, Oct 4, 2018 at 7:52 PM Humberto Blanco Castillo <[email protected]>
wrote:

> Hi ,
> Today i cant see the recent submissions, if i see the dspace log i get
> this:
> 2018-10-04 19:00:02,950 ERROR
> org.dspace.statistics.SolrLoggerUsageEventListener @ Target host is null
> 2018-10-04 19:00:03,172 ERROR org.dspace.discovery.SolrServiceImpl @
> anonymous:session_id=8E21FC52F56B3F1B8A790AC0576399DB:ip_addr=66.249.66.151:Error
> while retrieving related items:Handle\colon; 20.500.12134/242
> org.apache.solr.client.solrj.SolrServerException: Error executing query
>         at
> org.apache.solr.client.solrj.request.QueryRequest.process(QueryRequest.java:100)
>         at
> org.apache.solr.client.solrj.SolrServer.query(SolrServer.java:301)
>         at
> org.dspace.discovery.SolrServiceImpl.getRelatedItems(SolrServiceImpl.java:2140)
>         at
> org.dspace.app.xmlui.aspect.discovery.RelatedItems.addBody(RelatedItems.java:56)
>         at
> org.dspace.app.xmlui.wing.AbstractWingTransformer.startElement(AbstractWingTransformer.java:234)
>         at sun.reflect.GeneratedMethodAccessor135.invoke(Unknown Source)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:498)
>         at
> org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
>         at com.sun.proxy.$Proxy162.startElement(Unknown Source)
>         at
> org.apache.cocoon.components.sax.XMLTeePipe.startElement(XMLTeePipe.java:87)
>         at
> org.apache.cocoon.xml.AbstractXMLPipe.startElement(AbstractXMLPipe.java:94)
>         at
> org.dspace.app.xmlui.wing.AbstractWingTransformer.startElement(AbstractWingTransformer.java:251)
>         at sun.reflect.GeneratedMethodAccessor135.invoke(Unknown Source)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:498)
>         at
> org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
>         at com.sun.proxy.$Proxy163.startElement(Unknown Source)
>         at
> org.apache.cocoon.environment.internal.EnvironmentChanger.startElement(EnvironmentStack.java:140)
>         at
> org.apache.cocoon.components.sax.XMLTeePipe.startElement(XMLTeePipe.java:87)
>         at
> org.apache.cocoon.xml.AbstractXMLPipe.startElement(AbstractXMLPipe.java:94)
>         at
> org.dspace.app.xmlui.wing.AbstractWingTransformer.startElement(AbstractWingTransformer.java:251)
>         at sun.reflect.GeneratedMethodAccessor135.invoke(Unknown Source)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:498)
>         at
> org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
>         at com.sun.proxy.$Proxy163.startElement(Unknown Source)
>         at
> org.apache.cocoon.environment.internal.EnvironmentChanger.startElement(EnvironmentStack.java:140)
>         at
> org.apache.cocoon.components.sax.XMLTeePipe.startElement(XMLTeePipe.java:87)
>         at
> org.apache.cocoon.xml.AbstractXMLPipe.startElement(AbstractXMLPipe.java:94)
>         at
> org.dspace.app.xmlui.wing.AbstractWingTransformer.startElement(AbstractWingTransformer.java:251)
>         at sun.reflect.GeneratedMethodAccessor135.invoke(Unknown Source)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:498)
>         at
> org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
>         at com.sun.proxy.$Proxy163.startElement(Unknown Source)
>         at
> org.apache.cocoon.environment.internal.EnvironmentChanger.startElement(EnvironmentStack.java:140)
>         at
> org.apache.cocoon.components.sax.XMLTeePipe.startElement(XMLTeePipe.java:87)
>         at
> org.apache.cocoon.components.sax.AbstractXMLByteStreamInterpreter.parse(AbstractXMLByteStreamInterpreter.java:117)
>         at
> org.apache.cocoon.components.sax.XMLByteStreamInterpreter.deserialize(XMLByteStreamInterpreter.java:44)
>         at
> org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:324)
>         at
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:750)
>         at sun.reflect.GeneratedMethodAccessor128.invoke(Unknown Source)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:498)
>         at
> org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
>         at com.sun.proxy.$Proxy156.process(Unknown Source)
>         at
> org.apache.cocoon.components.source.impl.SitemapSource.toSAX(SitemapSource.java:362)
>         at
> org.apache.cocoon.components.source.util.SourceUtil.toSAX(SourceUtil.java:111)
>         at
> org.apache.cocoon.components.source.util.SourceUtil.parse(SourceUtil.java:294)
>         at
> org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:136)
>         at sun.reflect.GeneratedMethodAccessor127.invoke(Unknown Source)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:498)
>         at
> org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
>         at com.sun.proxy.$Proxy157.generate(Unknown Source)
>         at
> org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:326)
>         at
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:750)
>         at sun.reflect.GeneratedMethodAccessor128.invoke(Unknown Source)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:498)
>         at
> org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
>         at com.sun.proxy.$Proxy156.process(Unknown Source)
>         at
> org.apache.cocoon.components.source.impl.SitemapSource.toSAX(SitemapSource.java:362)
>         at
> org.apache.cocoon.components.source.util.SourceUtil.toSAX(SourceUtil.java:111)
>         at
> org.apache.cocoon.components.source.util.SourceUtil.parse(SourceUtil.java:294)
>         at
> org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:136)
>         at sun.reflect.GeneratedMethodAccessor127.invoke(Unknown Source)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:498)
>         at
> org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
>         at com.sun.proxy.$Proxy157.generate(Unknown Source)
>         at
> org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:326)
>         at
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:750)
>         at sun.reflect.GeneratedMethodAccessor128.invoke(Unknown Source)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:498)
>         at
> org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
>         at com.sun.proxy.$Proxy156.process(Unknown Source)
>         at
> org.apache.cocoon.components.source.impl.SitemapSource.toSAX(SitemapSource.java:362)
>         at
> org.apache.cocoon.components.source.util.SourceUtil.toSAX(SourceUtil.java:111)
>         at
> org.apache.cocoon.components.source.util.SourceUtil.parse(SourceUtil.java:294)
>         at
> org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:136)
>         at sun.reflect.GeneratedMethodAccessor127.invoke(Unknown Source)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:498)
>         at
> org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
>         at com.sun.proxy.$Proxy157.generate(Unknown Source)
>         at
> org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:326)
>         at
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:750)
>         at sun.reflect.GeneratedMethodAccessor128.invoke(Unknown Source)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:498)
>         at
> org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
>         at com.sun.proxy.$Proxy156.process(Unknown Source)
>         at
> org.apache.cocoon.components.source.impl.SitemapSource.toSAX(SitemapSource.java:362)
>         at
> org.apache.cocoon.components.source.util.SourceUtil.toSAX(SourceUtil.java:111)
>         at
> org.apache.cocoon.components.source.util.SourceUtil.parse(SourceUtil.java:294)
>         at
> org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:136)
>         at sun.reflect.GeneratedMethodAccessor127.invoke(Unknown Source)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:498)
>         at
> org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
>         at com.sun.proxy.$Proxy157.generate(Unknown Source)
>         at
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processXMLPipeline(AbstractProcessingPipeline.java:544)
>         at
> org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:273)
>         at
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:750)
>         at sun.reflect.GeneratedMethodAccessor128.invoke(Unknown Source)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:498)
>         at
> org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
>         at com.sun.proxy.$Proxy156.process(Unknown Source)
>         at
> org.apache.cocoon.components.source.impl.SitemapSource.toSAX(SitemapSource.java:362)
>         at
> org.apache.cocoon.components.source.util.SourceUtil.toSAX(SourceUtil.java:111)
>         at
> org.apache.cocoon.components.source.util.SourceUtil.parse(SourceUtil.java:294)
>         at
> org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:136)
>         at sun.reflect.GeneratedMethodAccessor127.invoke(Unknown Source)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:498)
>         at
> org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
>         at com.sun.proxy.$Proxy157.generate(Unknown Source)
>         at
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processXMLPipeline(AbstractProcessingPipeline.java:544)
>         at
> org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:273)
>         at
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:750)
>         at sun.reflect.GeneratedMethodAccessor128.invoke(Unknown Source)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:498)
>         at
> org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
>         at com.sun.proxy.$Proxy156.process(Unknown Source)
>         at
> org.apache.cocoon.components.source.impl.SitemapSource.toSAX(SitemapSource.java:362)
>         at
> org.apache.cocoon.components.source.util.SourceUtil.toSAX(SourceUtil.java:111)
>         at
> org.apache.cocoon.components.source.util.SourceUtil.parse(SourceUtil.java:294)
>         at
> org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:136)
>         at sun.reflect.GeneratedMethodAccessor127.invoke(Unknown Source)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:498)
>         at
> org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
>         at com.sun.proxy.$Proxy157.generate(Unknown Source)
>         at
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processXMLPipeline(AbstractProcessingPipeline.java:544)
>         at
> org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:273)
>         at
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:750)
>         at sun.reflect.GeneratedMethodAccessor128.invoke(Unknown Source)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:498)
>         at
> org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
>         at com.sun.proxy.$Proxy156.process(Unknown Source)
>         at
> org.apache.cocoon.components.source.impl.SitemapSource.toSAX(SitemapSource.java:362)
>         at
> org.apache.cocoon.components.source.util.SourceUtil.toSAX(SourceUtil.java:111)
>         at
> org.apache.cocoon.components.source.util.SourceUtil.parse(SourceUtil.java:294)
>         at
> org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:136)
>         at sun.reflect.GeneratedMethodAccessor127.invoke(Unknown Source)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:498)
>         at
> org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
>         at com.sun.proxy.$Proxy157.generate(Unknown Source)
>         at
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processXMLPipeline(AbstractProcessingPipeline.java:544)
>         at
> org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:273)
>         at
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:750)
>         at sun.reflect.GeneratedMethodAccessor128.invoke(Unknown Source)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:498)
>         at
> org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
>         at com.sun.proxy.$Proxy156.process(Unknown Source)
>         at
> org.apache.cocoon.components.source.impl.SitemapSource.toSAX(SitemapSource.java:362)
>         at
> org.apache.cocoon.components.source.util.SourceUtil.toSAX(SourceUtil.java:111)
>         at
> org.apache.cocoon.components.source.util.SourceUtil.parse(SourceUtil.java:294)
>         at
> org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:136)
>         at sun.reflect.GeneratedMethodAccessor127.invoke(Unknown Source)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:498)
>         at
> org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
>         at com.sun.proxy.$Proxy157.generate(Unknown Source)
>         at
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processXMLPipeline(AbstractProcessingPipeline.java:544)
>         at
> org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:273)
>         at
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:750)
>         at sun.reflect.GeneratedMethodAccessor128.invoke(Unknown Source)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:498)
>         at
> org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
>         at com.sun.proxy.$Proxy156.process(Unknown Source)
>         at
> org.apache.cocoon.components.source.impl.SitemapSource.toSAX(SitemapSource.java:362)
>         at
> org.apache.cocoon.components.source.util.SourceUtil.toSAX(SourceUtil.java:111)
>         at
> org.apache.cocoon.components.source.util.SourceUtil.parse(SourceUtil.java:294)
>         at
> org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:136)
>         at sun.reflect.GeneratedMethodAccessor127.invoke(Unknown Source)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:498)
>         at
> org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
>         at com.sun.proxy.$Proxy157.generate(Unknown Source)
>         at
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processXMLPipeline(AbstractProcessingPipeline.java:544)
>         at
> org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:273)
>         at
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:750)
>         at sun.reflect.GeneratedMethodAccessor128.invoke(Unknown Source)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:498)
>         at
> org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
>         at com.sun.proxy.$Proxy156.process(Unknown Source)
>         at
> org.apache.cocoon.components.source.impl.SitemapSource.toSAX(SitemapSource.java:362)
>         at
> org.apache.cocoon.components.source.util.SourceUtil.toSAX(SourceUtil.java:111)
>         at
> org.apache.cocoon.components.source.util.SourceUtil.parse(SourceUtil.java:294)
>         at
> org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:136)
>         at sun.reflect.GeneratedMethodAccessor127.invoke(Unknown Source)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:498)
>         at
> org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
>         at com.sun.proxy.$Proxy157.generate(Unknown Source)
>         at
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processXMLPipeline(AbstractProcessingPipeline.java:544)
>         at
> org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:273)
>         at
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:439)
>         at sun.reflect.GeneratedMethodAccessor145.invoke(Unknown Source)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:498)
>         at
> org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
>         at com.sun.proxy.$Proxy156.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:741)
>         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.$Proxy153.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.doGet(FrameworkServlet.java:842)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
>         at
> org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:827)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
>         at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
>         at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
>         at
> org.dspace.app.xmlui.cocoon.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:113)
>         at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
>         at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
>         at
> org.dspace.app.xmlui.cocoon.DSpaceCocoonServletFilter.doFilter(DSpaceCocoonServletFilter.java:160)
>         at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
>         at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
>         at
> org.dspace.app.xmlui.cocoon.servlet.multipart.DSpaceMultipartFilter.doFilter(DSpaceMultipartFilter.java:119)
>         at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
>         at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
>         at
> org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
>         at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
>         at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
>         at
> org.dspace.rdf.negotiation.NegotiationFilter.doFilter(NegotiationFilter.java:52)
>         at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
>         at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
>         at
> org.dspace.utils.servlet.DSpaceWebappServletFilter.doFilter(DSpaceWebappServletFilter.java:78)
>         at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
>         at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
>         at
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
>         at
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
>         at
> org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:592)
>         at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
>         at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80)
>         at
> org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:651)
>         at
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
>         at
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
>         at
> org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:498)
>         at
> org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
>         at
> org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:796)
>         at
> org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1374)
>         at
> org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
>         at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
>         at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
>         at
> org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
>         at java.lang.Thread.run(Thread.java:748)
> *Caused by: java.lang.IllegalStateException: Target host is null*
>         at org.apache.http.util.Asserts.notNull(Asserts.java:52)
>         at
> org.apache.http.impl.conn.ProxySelectorRoutePlanner.determineRoute(ProxySelectorRoutePlanner.java:134)
>         at
> org.apache.http.impl.client.DefaultRequestDirector.determineRoute(DefaultRequestDirector.java:762)
>         at
> org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:381)
>         at
> org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:882)
>         at
> org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82)
>         at
> org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:107)
>         at
> org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:55)
>         at
> org.apache.solr.client.solrj.impl.HttpSolrServer.executeMethod(HttpSolrServer.java:448)
>         at
> org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:210)
>         at
> org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:206)
>         at
> org.apache.solr.client.solrj.request.QueryRequest.process(QueryRequest.java:91)
>         ... 298 more
> 2018-10-04 19:00:03,761 INFO  org.dspace.browse.BrowseEngine @
> anonymous:session_id=B773043F77FB19713001DB6E4C0779D9:ip_addr=207.46.13.69:
> browse_by_item:
> 2018-10-04 19:00:03,766 INFO  org.dspace.browse.BrowseEngine @
> anonymous:session_id=B773043F77FB19713001DB6E4C0779D9:ip_addr=207.46.13.69:
> browse_by_item:
>
>
> I believe that have an error in tomcat because 
> *java.lang.IllegalStateException:
> Target host is null* but its only an assumption and i not know how can i
> correct this. I chek solr and appears like works fine
>
>
> ..
>
> Really apreciate your help. thanks!
>
> --
> 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 Technical Support" 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-tech.
> For more options, visit https://groups.google.com/d/optout.
>
-- 
Tim Donohue
Technical Lead for DSpace & DSpaceDirect
DuraSpace.org | DSpace.org | DSpaceDirect.org

-- 
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 Technical Support" 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-tech.
For more options, visit https://groups.google.com/d/optout.

Reply via email to