Hi Yonik, thanks for your reply!
> Are you specifically selecting MMapDirectory in solrconfig.xml? Nope. We installed Oracle's Runtime from http://java.com/de/download/linux_manual.jsp?locale=de /java.runtime.name = Java(TM) SE Runtime Environment sun.boot.library.path = /usr/java/jdk1.6.0_26/jre/lib/amd64 java.vm.version = 20.1-b02 shared.loader = java.vm.vendor = Sun Microsystems Inc. enable.master = true java.vendor.url = http://java.sun.com/ path.separator = : java.vm.name = Java HotSpot(TM) 64-Bit Server VM tomcat.util.buf.StringCache.byte.enabled = true file.encoding.pkg = sun.io java.util.logging.config.file = /local/master01_tomcat7x_solr33x/conf/logging.properties user.country = DE sun.java.launcher = SUN_STANDARD sun.os.patch.level = unknown java.vm.specification.name = Java Virtual Machine Specification user.dir = /local/master01_tomcat7x_solr33x/logs solr.abortOnConfigurationError = true java.runtime.version = 1.6.0_26-b03 java.awt.graphicsenv = sun.awt.X11GraphicsEnvironment java.endorsed.dirs = /local/master01_tomcat7x_solr33x/endorsed os.arch = amd64 java.io.tmpdir = /local/master01_tomcat7x_solr33x/temp line.separator = / But no success with 1000 docs/batch, this was thrown during optimize: / 22.07.2011 18:44:05 org.apache.solr.core.SolrCore execute INFO: [core.digi20] webapp=/solr path=/update params={} status=500 QTime=87540 22.07.2011 18:44:05 org.apache.solr.common.SolrException log SEVERE: java.io.IOException: Map failed at sun.nio.ch.FileChannelImpl.map(FileChannelImpl.java:748) at org.apache.lucene.store.MMapDirectory$MMapIndexInput.<init>(MMapDirectory.java:303) at org.apache.lucene.store.MMapDirectory.openInput(MMapDirectory.java:217) at org.apache.lucene.index.FieldsReader.<init>(FieldsReader.java:129) at org.apache.lucene.index.SegmentCoreReaders.openDocStores(SegmentCoreReaders.java:245) at org.apache.lucene.index.SegmentReader.get(SegmentReader.java:117) at org.apache.lucene.index.IndexWriter$ReaderPool.get(IndexWriter.java:703) at org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4196) at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:3863) at org.apache.lucene.index.SerialMergeScheduler.merge(SerialMergeScheduler.java:37) at org.apache.lucene.index.IndexWriter.maybeMerge(IndexWriter.java:2715) at org.apache.lucene.index.IndexWriter.optimize(IndexWriter.java:2525) at org.apache.lucene.index.IndexWriter.optimize(IndexWriter.java:2462) at org.apache.solr.update.DirectUpdateHandler2.commit(DirectUpdateHandler2.java:410) at org.apache.solr.update.processor.RunUpdateProcessor.processCommit(RunUpdateProcessorFactory.java:85) at org.apache.solr.update.processor.LogUpdateProcessor.processCommit(LogUpdateProcessorFactory.java:154) at org.apache.solr.handler.XMLLoader.processUpdate(XMLLoader.java:177) at org.apache.solr.handler.XMLLoader.load(XMLLoader.java:77) at org.apache.solr.handler.ContentStreamHandlerBase.handleRequestBody(ContentStreamHandlerBase.java:67) at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:129) at org.apache.solr.core.SolrCore.execute(SolrCore.java:1368) at org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:356) at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:252) 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:240) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:164) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:563) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:403) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:301) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:162) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:309) 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: java.lang.OutOfMemoryError: Map failed at sun.nio.ch.FileChannelImpl.map0(Native Method) at sun.nio.ch.FileChannelImpl.map(FileChannelImpl.java:745) ... 38 more / Best regards, Sebastian -- View this message in context: http://lucene.472066.n3.nabble.com/Solr-3-3-Exception-in-thread-Lucene-Merge-Thread-1-tp3185248p3191933.html Sent from the Solr - User mailing list archive at Nabble.com.