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  1. Solr
  2. SOLR-13219

LTR FieldLengthFeature causes NullPointerException with documents that do not have the requested field

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    Details

    • Type: Bug
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: 7.6
    • Fix Version/s: None
    • Component/s: contrib - LTR
    • Environment:

      OSX - Mojave

       

      Description

      1) Create an index with a dynamic field, eg tm_my_fulltext_field based on tm_* dynamic field

      2) Index your documents and make sure not all of the documents have the tm_my_fulltext_field field.

      3) Set up a feature store as follows

      {
      "initArgs": {},
      "initializedOn": "2019-01-21T21:09:59.011Z",
      "updatedSinceInit": "2019-01-21T22:01:14.113Z",
      "managedList": [
      {
      "name": "descriptionLength",
      "class": "org.apache.solr.ltr.feature.FieldLengthFeature",
      "params": {
      "field": "tm_my_fulltext_field"
      },
      "store": "_DEFAULT_"
      }
      ]
      }
      

      Try to fetch the feature in a query

       

      http://localhost:8983/solr/dropsolid8/select?q=europe&json.nl=flat&omitHeader=true&fl=ss_search_api_id,ss_search_api_language,hash,[features]&start=0&rows=10&wt=json&rq={!ltr efi.query=europe model=originalScoreModel}}&df=tm_X3b_nl_rendered_item
      

      You'll see

       

      2019-02-05 13:45:36.087 ERROR (qtp690521419-21) [ x:dropsolid8] o.a.s.h.RequestHandlerBase org.apache.solr.common.SolrException: java.lang.NullPointerException
      at org.apache.solr.search.ReRankCollector.topDocs(ReRankCollector.java:140)
      at org.apache.solr.search.SolrIndexSearcher.getDocListNC(SolrIndexSearcher.java:1607)
      at org.apache.solr.search.SolrIndexSearcher.getDocListC(SolrIndexSearcher.java:1421)
      at org.apache.solr.search.SolrIndexSearcher.search(SolrIndexSearcher.java:568)
      at org.apache.solr.handler.component.QueryComponent.doProcessUngroupedSearch(QueryComponent.java:1435)
      at org.apache.solr.handler.component.QueryComponent.process(QueryComponent.java:375)
      at org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:298)
      at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:199)
      at org.apache.solr.core.SolrCore.execute(SolrCore.java:2541)
      at org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:709)
      at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:515)
      at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:377)
      at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:323)
      at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1634)
      at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533)
      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:1595)
      at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)
      at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1317)
      at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203)
      at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
      at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
      at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201)
      at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1219)
      at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)
      at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:219)
      at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126)
      at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
      at org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335)
      at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
      at org.eclipse.jetty.server.Server.handle(Server.java:531)
      at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:352)
      at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260)
      at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:281)
      at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:102)
      at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118)
      at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333)
      at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310)
      at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)
      at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126)
      at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366)
      at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:762)
      at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:680)
      at java.lang.Thread.run(Thread.java:745)
      Caused by: java.lang.NullPointerException
      at org.apache.solr.ltr.feature.FieldLengthFeature$FieldLengthFeatureWeight$FieldLengthFeatureScorer.<init>(FieldLengthFeature.java:134)
      at org.apache.solr.ltr.feature.FieldLengthFeature$FieldLengthFeatureWeight.scorer(FieldLengthFeature.java:120)
      at org.apache.solr.ltr.LTRScoringQuery$ModelWeight.scorer(LTRScoringQuery.java:467)
      at org.apache.solr.ltr.LTRRescorer.scoreFeatures(LTRRescorer.java:164)
      at org.apache.solr.ltr.LTRRescorer.rescore(LTRRescorer.java:119)
      at org.apache.solr.search.ReRankCollector.topDocs(ReRankCollector.java:106)
      ... 46 more
      

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            • Assignee:
              Unassigned
              Reporter:
              Nick_vh Nick Veenhof
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              Dates

              • Created:
                Updated: