Hello: Have you encountered the following exception that will cause the index to not be written? But you can query Version:8.7.0
org.apache.solr.common.SolrException: this IndexWriter is closed at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:234) at org.apache.solr.core.SolrCore.execute(SolrCore.java:2627) at org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:795) at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:568) at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:415) at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:345) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1596) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:545) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:590) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:235) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1610) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1300) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:485) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1580) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1215) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:221) at org.eclipse.jetty.server.handler.InetAccessHandler.handle(InetAccessHandler.java:177) at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:146) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) at org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:322) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) at org.eclipse.jetty.server.Server.handle(Server.java:500) at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:383) at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:547) at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:375) at org.eclipse.jetty.server.HttpChannel.run(HttpChannel.java:335) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:336) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:313) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:171) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:135) at org.eclipse.jetty.http2.HTTP2Connection.produce(HTTP2Connection.java:170) at org.eclipse.jetty.http2.HTTP2Connection.onFillable(HTTP2Connection.java:125) at org.eclipse.jetty.http2.HTTP2Connection$FillableCallback.succeeded(HTTP2Connection.java:348) at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103) at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:117) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:336) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:313) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:171) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:129) at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:375) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:806) at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:938) at java.base/java.lang.Thread.run(Unknown Source) Caused by: org.apache.lucene.store.AlreadyClosedException: this IndexWriter is closed at org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:877) at org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:891) at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:2080) at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:2070) at org.apache.solr.update.DirectUpdateHandler2.commit(DirectUpdateHandler2.java:664) at org.apache.solr.update.processor.RunUpdateProcessorFactory$RunUpdateProcessor.processCommit(RunUpdateProcessorFactory.java:97) at org.apache.solr.update.processor.UpdateRequestProcessor.processCommit(UpdateRequestProcessor.java:68) at org.apache.solr.update.processor.UpdateRequestProcessor.processCommit(UpdateRequestProcessor.java:68) at org.apache.solr.update.processor.DistributedUpdateProcessor.doLocalCommit(DistributedUpdateProcessor.java:1105) at org.apache.solr.update.processor.DistributedZkUpdateProcessor.processCommit(DistributedZkUpdateProcessor.java:220) at org.apache.solr.update.processor.LogUpdateProcessorFactory$LogUpdateProcessor.processCommit(LogUpdateProcessorFactory.java:169) at org.apache.solr.handler.RequestHandlerUtils.handleCommit(RequestHandlerUtils.java:69) at org.apache.solr.handler.ContentStreamHandlerBase.handleRequestBody(ContentStreamHandlerBase.java:62) at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:214) ... 48 more Caused by: org.apache.lucene.index.CorruptIndexException: docs out of order (743 <= 902 ) (resource=RateLimitedIndexOutput(RAMOutputStream(name="_3z51tk_Lucene84_0.doc"))) at org.apache.lucene.codecs.lucene84.Lucene84PostingsWriter.startDoc(Lucene84PostingsWriter.java:231) at org.apache.lucene.codecs.PushPostingsWriterBase.writeTerm(PushPostingsWriterBase.java:146) at org.apache.lucene.codecs.blocktree.BlockTreeTermsWriter$TermsWriter.write(BlockTreeTermsWriter.java:907) at org.apache.lucene.codecs.blocktree.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:318) at org.apache.lucene.codecs.FieldsConsumer.merge(FieldsConsumer.java:105) at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.merge(PerFieldPostingsFormat.java:197) at org.apache.lucene.index.SegmentMerger.mergeTerms(SegmentMerger.java:244) at org.apache.lucene.index.SegmentMerger.merge(SegmentMerger.java:139) at org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4760) at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4364) at org.apache.solr.update.SolrIndexWriter.merge(SolrIndexWriter.java:201) at org.apache.lucene.index.IndexWriter$IndexWriterMergeSource.merge(IndexWriter.java:5923) at org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:624) at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:682) Sincerely yours Dawn