Spellceck Componet Exception when querying for specific word

Thu, 14 Sep 2017 23:05:28 -0700 

Hi,all

An exception as below occurred when I used spellcheck component only for
specific word "さいじんg".

2017-09-13 23:07:30.911 INFO  (qtp1712536284-299) [c:hoge s:shard2
r:core_node4 x:hoge_shard2_replica2] o.a.s.c.S.Request
[hoge_shard2_replica2]  webapp=/solr path=/suggest_ja
params={q=*:*&spellcheck.q=さいじんg&indent=true&wt=json&facet=false} hits=2
status=0 QTime=90
2017-09-13 23:07:43.922 ERROR (qtp1712536284-20) [c:test s:shard2
r:core_node3 x:test_shard2_replica1] o.a.s.h.RequestHandlerBase
java.lang.StringIndexOutOfBoundsException: String index out of range: -1
        at
java.lang.AbstractStringBuilder.replace(AbstractStringBuilder.java:851)
        at java.lang.StringBuilder.replace(StringBuilder.java:262)
        at
org.apache.solr.spelling.SpellCheckCollator.getCollation(SpellCheckCollator.java:238)
        at
org.apache.solr.spelling.SpellCheckCollator.collate(SpellCheckCollator.java:93)
        at
org.apache.solr.handler.component.SpellCheckComponent.addCollationsToResponse(SpellCheckComponent.java:297)
        at
org.apache.solr.handler.component.SpellCheckComponent.process(SpellCheckComponent.java:209)
        at
org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:295)
        at
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:153)
        at org.apache.solr.core.SolrCore.execute(SolrCore.java:2213)
        at
org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:654)
        at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:460)
        at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:303)
        at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:254)
        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:745)


However, When I restored indexing data from backup data by collection API,
this exception resolved.

Why this exception resolved?

※Solr Config is as below. 

<searchComponent class="solr.SpellCheckComponent" name="suggest_ja"> 
    <lst name="spellchecker"> 
      <str name="name">suggest_dict</str> 
      <str name="classname">solr.Suggester</str> 
      <str name="lookupImpl">AnalyzingLookupFactory</str> 
      <str name="field">suggest</str> 
      <str name="storeDir">suggest_ja</str> 
      <str name="buildOnStartup">true</str> 
      <str name="buildOnCommit">true</str> 
      <str name="suggestAnalyzerFieldType">text_ja_romaji</str> 
    </lst> 
  </searchComponent> 

  <requestHandler name="/suggest_ja" class="solr.SearchHandler" 
startup="lazy"> 
    <lst name="defaults"> 
      <str name="df">suggest</str> 
      <str name="q.op">AND</str> 
      <str name="rows">0</str> 
      <str name="omitHeader">true</str> 

      <str name="facet">true</str> 
      <str name="facet.field">suggest</str> 
      <str name="facet.limit">1000</str> 
      <str name="facet.mincount">1</str> 

      <str name="spellcheck">true</str> 
      <str name="spellcheck.dictionary">suggest_dict</str> 
      <str name="spellcheck.count">10</str> 
      <str name="spellcheck.collate">true</str> 
      <str name="spellcheck.maxCollations">30</str> 
      <str name="spellcheck.maxCollationTries">10</str> 
      <str name="spellcheck.collateExtendedResults">true</str> 
    </lst> 
    <arr name="last-components"> 
      <str>suggest_ja</str> 
    </arr> 
  </requestHandler> 



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