title: Solr4 Cloud Beta version exception org.apache.lucene.store.AlreadyClosedException: this IndexWriter is closed
body: <p>I recently updated from Solr 3.6 to Solr4 Beta version.  I am getting the below exception while trying to update and commit the same record again and again.  Can someone help on how to resolve this???</p>
  
  <pre><code>SEVERE: org.apache.solr.common.SolrException: Error opening new searcher
      at org.apache.solr.core.SolrCore.openNewSearcher(SolrCore.java:1267)
      at org.apache.solr.core.SolrCore.getSearcher(SolrCore.java:1379)
      at org.apache.solr.core.SolrCore.getSearcher(SolrCore.java:1157)
      at org.apache.solr.update.DirectUpdateHandler2.commit(DirectUpdateHandler2.java:560)
      at org.apache.solr.update.processor.RunUpdateProcessor.processCommit(RunUpdateProcessorFactory.java:87)
      at org.apache.solr.update.processor.UpdateRequestProcessor.processCommit(UpdateRequestProcessor.java:64)
      at org.apache.solr.update.processor.DistributedUpdateProcessor.processCommit(DistributedUpdateProcessor.java:959)
      at org.apache.solr.update.processor.LogUpdateProcessor.processCommit(LogUpdateProcessorFactory.java:157)
      at org.apache.solr.handler.RequestHandlerUtils.handleCommit(RequestHandlerUtils.java:69)
      at org.apache.solr.handler.ContentStreamHandlerBase.handleRequestBody(ContentStreamHandlerBase.java:68)
      at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:129)
      at org.apache.solr.core.SolrCore.execute(SolrCore.java:1656)
      at org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:454)
      at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:275)
      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
      at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225)
      at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
      at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
      at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
      at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
      at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
      at org.apache.catalina.ha.session.JvmRouteBinderValve.invoke(JvmRouteBinderValve.java:219)
      at org.apache.catalina.ha.tcp.ReplicationValve.invoke(ReplicationValve.java:333)
      at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
      at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:999)
      at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:565)
      at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1812)
      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:662)
  Caused by: org.apache.lucene.store.AlreadyClosedException: this IndexWriter is closed
      at org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:553)
      at org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:558)
      at org.apache.lucene.index.IndexWriter.nrtIsCurrent(IndexWriter.java:4061)
      at org.apache.lucene.index.StandardDirectoryReader.doOpenFromWriter(StandardDirectoryReader.java:261)
      at org.apache.lucene.index.StandardDirectoryReader.doOpenIfChanged(StandardDirectoryReader.java:240)
      at org.apache.lucene.index.StandardDirectoryReader.doOpenIfChanged(StandardDirectoryReader.java:230)
      at org.apache.lucene.index.DirectoryReader.openIfChanged(DirectoryReader.java:166)
      at org.apache.solr.core.SolrCore.openNewSearcher(SolrCore.java:1213)
      ... 30 more
  </code></pre>