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Date: Mon, 16 Apr 2018 10:24:50 -0700 (MST)
From: genel <gene@tekdata.com>
To: java-user@lucene.apache.org
Message-ID: <1523899490759-0.post@n3.nabble.com>
Subject: Error configuring Spell Checker
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We've been using SOLR for quite awhile.  I'm attempting to install spell
checking.

I think I have the basic configuration correct, because the wordbreak
component seems to work, but none of the others do.  

I consistently get an NPE error 


. java.lang.NullPointerException at
org.apache.solr.handler.component.SpellCheckComponent.process(SpellCheckComponent.java:147)
at
org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:273)
at
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:156)
at org.apache.solr.core.SolrCore.execute(SolrCore.java:2073) at
org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:658) at
org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:457) at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:223)
at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:181)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
at
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)
at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
at
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577)
at
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)
at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
at
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:215)
at
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:110)
at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
at org.eclipse.jetty.server.Server.handle(Server.java:499) at
org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310) at
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)
at
org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)
at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
at
org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
at java.lang.Thread.run(Unknown Source) 

Relevant part of solrconfig:

  
<searchComponent name="spellcheck" class="solr.SpellCheckComponent">

  <lst name="spellchecker">
    <str name="name">direct</str>
    <str name="field">text_spell</str>
    <str name="classname">solr.DirectSolrSpellChecker</str>
    <str name="distanceMeasure">internal</str>
    <float name="accuracy">0.5</float>
    <int name="maxEdits">2</int>
    <int name="minPrefix">2</int>
    <int name="maxInspections">5</int>
    <int name="minQueryLength">4</int>
    <float name="maxQueryFrequency">0.01</float>
    <float name="thresholdTokenFrequency">.01</float>
  </lst>
</searchComponent>
<searchComponent name="spellcheck" class="solr.SpellCheckComponent">
  <lst name="spellchecker">
    <str name="name">index</str>
    <str name="classname">solr.IndexBasedSpellChecker</str>
    <str name="spellcheckIndexDir">./spellchecker</str>
    <str name="field">text_spell</str>
    <str name="buildOnCommit">true</str>
    
 </lst>
</searchComponent>
<searchComponent name="spellcheck" class="solr.SpellCheckComponent">
  <lst name="spellchecker">
   <str name="name">wordbreak</str>
   <str name="classname">solr.WordBreakSolrSpellChecker</str>
   <str name="field">text_spell</str>
   <str name="combineWords">true</str>
   <str name="breakWords">true</str>
   <int name="maxChanges">10</int>
 </lst>
</searchComponent>  
   <requestHandler name="/spell" class="solr.SearchHandler" startup="lazy">
    <lst name="defaults">
	       <str name="echoParams">explicit</str> 
       <int name="rows">20</int> 
       <str name="df">text</str>
      
      <str name="spellcheck.dictionary">direct</str>
     
      <str name="spellcheck">on</str>
      <str name="spellcheck.extendedResults">true</str>
      <str name="spellcheck.count">10</str>
      <str name="spellcheck.alternativeTermCount">5</str>
      <str name="spellcheck.maxResultsForSuggest">5</str>
      <str name="spellcheck.collate">true</str>
      <str name="spellcheck.collateExtendedResults">true</str>
      <str name="spellcheck.maxCollationTries">10</str>
      <str name="spellcheck.maxCollations">5</str>
    </lst>
    <arr name="last-components">
      <str>spellcheck</str>
    </arr>
  </requestHandler>

Relevant part of schema:

<fieldType name="tokenized" class="solr.TextField"
positionIncrementGap="100">
    <analyzer type="index">
        <filter class="solr.ASCIIFoldingFilterFactory"/>
        <tokenizer class="solr.StandardTokenizerFactory"/>
        <filter class="solr.StopFilterFactory" ignoreCase="true"
words="stopwords.txt" />
        <filter class="solr.KeywordMarkerFilterFactory"
protected="protwords.txt"/>
        <filter class="solr.LowerCaseFilterFactory"/>
        <filter class="solr.RemoveDuplicatesTokenFilterFactory"/>
    </analyzer>
    <analyzer type="query">
        <filter class="solr.ASCIIFoldingFilterFactory"/>
        <tokenizer class="solr.StandardTokenizerFactory"/>
        <filter class="solr.StopFilterFactory" ignoreCase="true"
words="stopwords.txt"/>
        <filter class="solr.SynonymFilterFactory" synonyms="synonyms.txt"
ignoreCase="true" expand="true"/>
        <filter class="solr.KeywordMarkerFilterFactory"
protected="protwords.txt"/>
        <filter class="solr.LowerCaseFilterFactory"/>
        <filter class="solr.RemoveDuplicatesTokenFilterFactory"/>
    </analyzer>
</fieldType>

 <field name="text_spell" type="tokenized" indexed="true" stored="true"
multiValued="true" />

<copyField source="resource_name" dest="text_spell"/>
<copyField source="description" dest="text_spell"/>

url:

http://localhost:8983/solr/gene/spell?spellcheck.q=rainb&spellcheck=true

I've tried just about everything I can think of, what am I missing?



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