I am trying to use sorting by the termfreq function using the trunk code
since termfreq was added in the 4.0 code base.
I run this query:
http://127.0.0.1:8983/solr/select/?q=librarian&sort=termfreq(all_lists_text,librarian)%20desc
but I get:
HTTP ERROR 500
Problem accessing /solr/select/. Reason:
null
java.lang.NullPointerException
at
org.apache.solr.search.function.TermFreqValueSource$1.reset(TermFreqValueSource.java:53)
at
org.apache.solr.search.function.TermFreqValueSource$1.<init>(TermFreqValueSource.java:49)
at
org.apache.solr.search.function.TermFreqValueSource.getValues(TermFreqValueSource.java:44)
at
org.apache.solr.search.function.ValueSource$ValueSourceComparator.setNextReader(ValueSource.java:188)
at
org.apache.lucene.search.TopFieldCollector$OneComparatorNonScoringCollector.setNextReader(TopFieldCollector.java:97)
at org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:544)
at org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:313)
at
org.apache.solr.search.SolrIndexSearcher.getDocListNC(SolrIndexSearcher.java:1190)
at
org.apache.solr.search.SolrIndexSearcher.getDocListC(SolrIndexSearcher.java:1078)
at
org.apache.solr.search.SolrIndexSearcher.search(SolrIndexSearcher.java:346)
at
org.apache.solr.handler.component.QueryComponent.process(QueryComponent.java:400)
at
org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:231)
at
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:129)
at org.apache.solr.core.SolrCore.execute(SolrCore.java:1308)
at
org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:353)
at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:248)
at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
at
org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at
org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
at
org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
at
org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at
org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
at
org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at
org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:228)
at
org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
Is termfreq stable and how can I run this query?
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