Major Description
This is a pretty nasty bug, and causes the cluster to stop accepting updates. I'm not sure how to consistently reproduce it but I have done so numerous times. Switching to a whitespace tokenizer improved indexing speed, and I never got the issue again.
I'm running a 4.6 Snapshot - I had issues with deadlocks with numerous versions of Solr, and have finally narrowed down the problem to this code, which affects many/all
versions of Solr.
When the thread hits this issue it uses 100% CPU, restarting the node which has the error allows indexing to continue until hit again. Here is thread dump:
http-bio-8080-exec-45 (201)
org.apache.lucene.analysis.standard.UAX29URLEmailTokenizerImpl.getNextToken(UAX29URLEmailTokenizerImpl.java:4343)
org.apache.lucene.analysis.standard.UAX29URLEmailTokenizer.incrementToken(UAX29URLEmailTokenizer.java:147)
org.apache.lucene.analysis.util.FilteringTokenFilter.incrementToken(FilteringTokenFilter.java:82)
org.apache.lucene.analysis.core.LowerCaseFilter.incrementToken(LowerCaseFilter.java:54)
org.apache.lucene.index.DocInverterPerField.processFields(DocInverterPerField.java:174)
org.apache.lucene.index.DocFieldProcessor.processDocument(DocFieldProcessor.java:248)
org.apache.lucene.index.DocumentsWriterPerThread.updateDocument(DocumentsWriterPerThread.java:253)
org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:453)
org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1517)
org.apache.solr.update.DirectUpdateHandler2.addDoc(DirectUpdateHandler2.java:217)
org.apache.solr.update.processor.RunUpdateProcessor.processAdd(RunUpdateProcessorFactory.java:69)
org.apache.solr.update.processor.UpdateRequestProcessor.processAdd(UpdateRequestProcessor.java:51)
org.apache.solr.update.processor.DistributedUpdateProcessor.doLocalAdd(DistributedUpdateProcessor.java:583)
org.apache.solr.update.processor.DistributedUpdateProcessor.versionAdd(DistributedUpdateProcessor.java:719)
org.apache.solr.update.processor.DistributedUpdateProcessor.processAdd(DistributedUpdateProcessor.java:449)
org.apache.solr.handler.loader.JavabinLoader$1.update(JavabinLoader.java:89)
org.apache.solr.client.solrj.request.JavaBinUpdateRequestCodec$1.readOuterMostDocIterator(JavaBinUpdateRequestCodec.java:151)
org.apache.solr.client.solrj.request.JavaBinUpdateRequestCodec$1.readIterator(JavaBinUpdateRequestCodec.java:131)
org.apache.solr.common.util.JavaBinCodec.readVal(JavaBinCodec.java:221)
org.apache.solr.client.solrj.request.JavaBinUpdateRequestCodec$1.readNamedList(JavaBinUpdateRequestCodec.java:116)
org.apache.solr.common.util.JavaBinCodec.readVal(JavaBinCodec.java:186)
org.apache.solr.common.util.JavaBinCodec.unmarshal(JavaBinCodec.java:112)
org.apache.solr.client.solrj.request.JavaBinUpdateRequestCodec.unmarshal(JavaBinUpdateRequestCodec.java:158)
org.apache.solr.handler.loader.JavabinLoader.parseAndLoadDocs(JavabinLoader.java:99)
org.apache.solr.handler.loader.JavabinLoader.load(JavabinLoader.java:58)
org.apache.solr.handler.UpdateRequestHandler$1.load(UpdateRequestHandler.java:92)
org.apache.solr.handler.ContentStreamHandlerBase.handleRequestBody(ContentStreamHandlerBase.java:74)
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:135)
org.apache.solr.core.SolrCore.execute(SolrCore.java:1859)
org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:703)
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:406)
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:195)
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1023)
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
java.lang.Thread.run(Unknown Source)