We are trying to search collection Hidden from collection Front using the below url
http://localhost:8983/solr/Front/select?&q=hardware&wt=json&collection=Hidden
This results in the error QueryComponent.mergeIds as shown in the trace log below. Querying the Hidden collection directly, returns expected results.
The /select handler for Front collection has the below default config.
<lst name="defaults">
<str name="echoParams">explicit</str>
<int name="rows">10</int>
<str name="qf">text</str>
<bool name="preferLocalShards">false</bool>
I have tried searching for the mergeIds related errors but couldnt find a solution. Any suggestions would be welcome.
Trace Log
trace":"java.lang.NullPointerException\r\n\tat org.apache.solr.handler.component.QueryComponent.mergeIds(QueryComponent.java:1115)\r\n\tat org.apache.solr.handler.component.QueryComponent.handleRegularResponses(QueryComponent.java:759)\r\n\tat org.apache.solr.handler.component.QueryComponent.handleResponses(QueryComponent.java:738)\r\n\tat org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:426)\r\n\tat org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:156)\r\n\tat org.apache.solr.core.SolrCore.execute(SolrCore.java:2036)\r\n\tat org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:657)\r\n\tat org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:464)\r\n\tat org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:257)\r\n\tat org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:208)\r\n\tat org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1668)\r\n\tat org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:581)\r\n\tat org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)\r\n\tat org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)\r\n\tat org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226)\r\n\tat org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1160)\r\n\tat org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:511)\r\n\tat org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)\r\n\tat org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1092)\r\n\tat org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)\r\n\tat org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:213)\r\n\tat org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:119)\r\n\tat org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)\r\n\tat org.eclipse.jetty.server.Server.handle(Server.java:518)\r\n\tat org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:308)\r\n\tat org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:244)\r\n\tat org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:273)\r\n\tat org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95)\r\n\tat org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93)\r\n\tat org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceAndRun(ExecuteProduceConsume.java:246)\r\n\tat org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:156)\r\n\tat org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:654)\r\n\tat org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:572)\r\n\tat java.lang.Thread.run(Unknown Source)\r\n",
