I am seeing this entry in our Solr logs: *Cannot invoke "org.apache.solr.update.TransactionLog.incref()" because "lookupLog" is null* We are running Solr 8.4. (not in Solr cloud mode)
full stack trace: org.apache.solr.handler.RequestHandlerBase message java.lang.NullPointerException: Cannot invoke "org.apache.solr.update.TransactionLog.incref()" because "lookupLog" is null at org.apache.solr.update.UpdateLog.lookup(UpdateLog.java:1015) at org.apache.solr.handler.component.RealTimeGetComponent.getInputDocumentFromTlog(RealTimeGetComponent.java:555) at org.apache.solr.handler.component.RealTimeGetComponent.getInputDocument(RealTimeGetComponent.java:628) at org.apache.solr.handler.component.RealTimeGetComponent.getInputDocument(RealTimeGetComponent.java:610) at org.apache.solr.update.processor.DistributedUpdateProcessor.getUpdatedDocument(DistributedUpdateProcessor.java:675) at org.apache.solr.update.processor.DistributedUpdateProcessor.doVersionAdd(DistributedUpdateProcessor.java:374) at org.apache.solr.update.processor.DistributedUpdateProcessor.lambda$versionAdd$0(DistributedUpdateProcessor.java:339) at org.apache.solr.update.VersionBucket.runWithLock(VersionBucket.java:50) at org.apache.solr.update.processor.DistributedUpdateProcessor.versionAdd(DistributedUpdateProcessor.java:339) at org.apache.solr.update.processor.DistributedUpdateProcessor.processAdd(DistributedUpdateProcessor.java:225) at org.apache.solr.update.processor.LogUpdateProcessorFactory$LogUpdateProcessor.processAdd(LogUpdateProcessorFactory.java:103) at org.apache.solr.handler.loader.JavabinLoader$1.update(JavabinLoader.java:110) at org.apache.solr.client.solrj.request.JavaBinUpdateRequestCodec$StreamingCodec.readOuterMostDocIterator(JavaBinUpdateRequestCodec.java:332) at org.apache.solr.client.solrj.request.JavaBinUpdateRequestCodec$StreamingCodec.readIterator(JavaBinUpdateRequestCodec.java:281) at org.apache.solr.common.util.JavaBinCodec.readObject(JavaBinCodec.java:338) at org.apache.solr.common.util.JavaBinCodec.readVal(JavaBinCodec.java:283) at org.apache.solr.client.solrj.request.JavaBinUpdateRequestCodec$StreamingCodec.readNamedList(JavaBinUpdateRequestCodec.java:236) at org.apache.solr.common.util.JavaBinCodec.readObject(JavaBinCodec.java:303) at org.apache.solr.common.util.JavaBinCodec.readVal(JavaBinCodec.java:283) at org.apache.solr.common.util.JavaBinCodec.unmarshal(JavaBinCodec.java:196) at org.apache.solr.client.solrj.request.JavaBinUpdateRequestCodec.unmarshal(JavaBinUpdateRequestCodec.java:127) at org.apache.solr.handler.loader.JavabinLoader.parseAndLoadDocs(JavabinLoader.java:122) at org.apache.solr.handler.loader.JavabinLoader.load(JavabinLoader.java:70) at org.apache.solr.handler.UpdateRequestHandler$1.load(UpdateRequestHandler.java:97) at org.apache.solr.handler.ContentStreamHandlerBase.handleRequestBody(ContentStreamHandlerBase.java:68) at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:211) at org.apache.solr.core.SolrCore.execute(SolrCore.java:2596) at org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:799) at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:578) at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:419) at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:351) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:540) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1711) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1347) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:480) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1678) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1249) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144) at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:152) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) at org.eclipse.jetty.server.Server.handle(Server.java:505) at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:370) at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:267) at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:305) at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103) at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:117) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126) at com.amazon.metrics.executor.MetricsClearingRunnable.run(MetricsClearingRunnable.java:58) at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366) at com.amazon.metrics.executor.MetricsClearingRunnable.run(MetricsClearingRunnable.java:58) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:833) Anyone ideas what is causing this?
