Escribo mi propio código para indexar algunos archivos de datos yo mismo. Todo estaba funcionando. Una vez que modifiqué elschema.xml Archivo, ahora recibo un error interno del servidor que no tengo idea de cómo interpretarlo.

Internal Server Error

request: http://127.0.0.1:8080/solr/update?wt=javabin&version=2
    at org.apache.solr.client.solrj.impl.CommonsHttpSolrServer.request(CommonsHttpSolrServer.java:427)
    at org.apache.solr.client.solrj.impl.CommonsHttpSolrServer.request(CommonsHttpSolrServer.java:249)
    at org.apache.solr.client.solrj.request.AbstractUpdateRequest.process(AbstractUpdateRequest.java:105)
    at org.apache.solr.client.solrj.SolrServer.add(SolrServer.java:69)
    at org.apache.solr.client.solrj.SolrServer.add(SolrServer.java:54)
    at solr.client.SolrClient.index(SolrClient.java:109)
    at solr.client.SolrClient.main(SolrClient.java:26)

Luego miro el archivo de registro catalina, que dice que no se ha creado ningún núcleo ...

   Jun 26, 2012 2:09:21 AM org.apache.solr.core.SolrCore close
INFO: []  CLOSING SolrCore org.apache.solr.core.SolrCore@5675b3ee
Jun 26, 2012 2:09:21 AM org.apache.solr.common.SolrException log
SEVERE: java.lang.NullPointerException
    at org.apache.solr.core.SolrCore.close(SolrCore.java:712)
    at org.apache.solr.core.SolrCore.<init>(SolrCore.java:599)
    at org.apache.solr.core.CoreContainer.create(CoreContainer.java:483)
    at org.apache.solr.core.CoreContainer.load(CoreContainer.java:335)
    at org.apache.solr.core.CoreContainer.load(CoreContainer.java:219)
    at org.apache.solr.core.CoreContainer$Initializer.initialize(CoreContainer.java:161)
    at org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:96)
    at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:277)
    at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:258)
    at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:382)
    at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:103)
    at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4638)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5294)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:895)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:871)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615)
    at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:649)
    at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1585)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
    at java.util.concurrent.FutureTask.run(FutureTask.java:138)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    at java.lang.Thread.run(Thread.java:680)

Jun 26, 2012 2:09:21 AM org.apache.solr.core.SolrCore closeSearcher
INFO: [] Closing main searcher on request.
Jun 26, 2012 2:09:21 AM org.apache.solr.common.SolrException log
SEVERE: org.apache.solr.common.SolrException
    at org.apache.solr.core.SolrCore.<init>(SolrCore.java:600)
    at org.apache.solr.core.CoreContainer.create(CoreContainer.java:483)
    at org.apache.solr.core.CoreContainer.load(CoreContainer.java:335)
    at org.apache.solr.core.CoreContainer.load(CoreContainer.java:219)
    at org.apache.solr.core.CoreContainer$Initializer.initialize(CoreContainer.java:161)
    at org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:96)
    at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:277)
    at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:258)
    at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:382)
    at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:103)
    at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4638)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5294)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:895)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:871)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615)
    at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:649)
    at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1585)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
    at java.util.concurrent.FutureTask.run(FutureTask.java:138)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    at java.lang.Thread.run(Thread.java:680)
Caused by: java.lang.RuntimeException: org.apache.lucene.index.IndexNotFoundException: no segments* file found in org.apache.lucene.store.NIOFSDirectory@/Users/nan/solr-tomcat/solr/data/index lockFactory=org.apache.lucene.store.NativeFSLockFactory@11396ef7: files: []
    at org.apache.solr.core.SolrCore.getSearcher(SolrCore.java:1104)
    at org.apache.solr.core.SolrCore.<init>(SolrCore.java:585)
    ... 23 more
Caused by: org.apache.lucene.index.IndexNotFoundException: no segments* file found in org.apache.lucene.store.NIOFSDirectory@/Users/nan/solr-tomcat/solr/data/index lockFactory=org.apache.lucene.store.NativeFSLockFactory@11396ef7: files: []
    at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:667)
    at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:72)
    at org.apache.lucene.index.IndexReader.open(IndexReader.java:375)
    at org.apache.solr.core.StandardIndexReaderFactory.newReader(StandardIndexReaderFactory.java:38)
    at org.apache.solr.core.SolrCore.getSearcher(SolrCore.java:1093)
    ... 24 more

Se actualizó el archivo de registro de catalina anterior ... sí, eliminé los datos del índice ya que pensé que iba a crear un nuevo índice ... y lo hice antes hoy, pero no vi este tipo de error hasta ahora ... ¿cómo debo solucionarlo? ? :(

¡¡¡Muchas gracias!!! (^ tiempos infinitivos)