Hi I am encountering the following exception with Solr 6.2.1 occasionally when querying the index. The exception causes the request to fail.
java.lang.NegativeArraySizeException at org.apache.lucene.search.FieldComparator$LongComparator.<init>(FieldComparator.java:406) at org.apache.lucene.search.SortField.getComparator(SortField.java:354) at org.apache.lucene.search.grouping.AbstractFirstPassGroupingCollector.<init>(AbstractFirstPassGroupingCollector.java:83) at org.apache.lucene.search.grouping.function.FunctionFirstPassGroupingCollector.<init>(FunctionFirstPassGroupingCollector.java:58) at org.apache.solr.search.grouping.distributed.command.SearchGroupsFieldCommand.create(SearchGroupsFieldCommand.java:101) at org.apache.solr.search.grouping.CommandHandler.execute(CommandHandler.java:149) at org.apache.solr.handler.component.QueryComponent.process(QueryComponent.java:406) at org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:295) at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:154) at org.apache.solr.core.SolrCore.execute(SolrCore.java:2089) at org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:652) at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:459) at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:257) at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:208) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1668) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:581) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1160) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:511) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1092) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:213) at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:119) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134) at org.eclipse.jetty.server.Server.handle(Server.java:518) at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:308) at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:244) at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:273) at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95) at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93) at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceAndRun(ExecuteProduceConsume.java:246) at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:156) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:654) at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:572) at java.lang.Thread.run(Thread.java:785) I could not find any issues about this - is this a known issue? In the meantime I migrated to Solr 6.3.0 but it has not been running long enough to make any statement on whether the issue persists. Regards