"java.lang.Float cannot be cast to java.lang.String" typically means you
wrote <float name="x">n</float> for a parameter which is expected to be a
string ("<str ...").
-- Jack Krupansky
-----Original Message-----
From: Rohan Thakur
Sent: Friday, March 15, 2013 10:01 AM
To: solr-user@lucene.apache.org
Subject: search request handler error
hi all
please someone help me with this I am getting search request handler when I
modified the /select request handler to add spell correction in it
I am using solr4.1
*error:*
INFO: Initializing spell checkers
Mar 15, 2013 7:21:19 PM org.apache.solr.core.QuerySenderListener newSearcher
INFO: QuerySenderListener sending requests to
Searcher@6ce7ce4cmain{StandardDirectoryReader(segments_e4:2003
_qp(4.1):C1063)}
Mar 15, 2013 7:21:19 PM org.apache.solr.common.SolrException log
SEVERE: java.lang.NullPointerException
at
org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:181)
at
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:135)
at org.apache.solr.core.SolrCore.execute(SolrCore.java:1816)
at
org.apache.solr.core.QuerySenderListener.newSearcher(QuerySenderListener.java:64)
at org.apache.solr.core.SolrCore$5.call(SolrCore.java:1594)
at
java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:679)
Mar 15, 2013 7:21:19 PM org.apache.solr.core.SolrCore close
INFO: [collection1] CLOSING SolrCore org.apache.solr.core.SolrCore@641cab18
Mar 15, 2013 7:21:19 PM org.apache.solr.update.DirectUpdateHandler2 close
INFO: closing DirectUpdateHandler2{commits=0,autocommit
maxTime=15000ms,autocommits=0,soft
autocommits=0,optimizes=0,rollbacks=0,expungeDeletes=0,docsPending=0,adds=0,deletesById=0,deletesByQuery=0,errors=0,cumulative_adds=0,cumulative_deletesById=0,cumulative_deletesByQuery=0,cumulative_errors=0}
Mar 15, 2013 7:21:19 PM org.apache.solr.core.SolrCore execute
INFO: [collection1] webapp=null path=null
params={event=firstSearcher&q=static+firstSearcher+warming+in+solrconfig.xml&distrib=false}
status=500 QTime=7
Mar 15, 2013 7:21:19 PM org.apache.solr.core.QuerySenderListener newSearcher
INFO: QuerySenderListener done.
Mar 15, 2013 7:21:19 PM org.apache.solr.core.SolrCore decrefSolrCoreState
INFO: Closing SolrCoreState
Mar 15, 2013 7:21:19 PM org.apache.solr.update.DefaultSolrCoreState
closeIndexWriter
INFO: SolrCoreState ref count has reached 0 - closing IndexWriter
Mar 15, 2013 7:21:19 PM org.apache.solr.update.DefaultSolrCoreState
closeIndexWriter
INFO: closing IndexWriter with IndexWriterCloser
Mar 15, 2013 7:21:19 PM org.apache.solr.core.SolrCore registerSearcher
INFO: [collection1] Registered new searcher
Searcher@6ce7ce4cmain{StandardDirectoryReader(segments_e4:2003
_qp(4.1):C1063)}
Mar 15, 2013 7:21:20 PM org.apache.solr.core.SolrCore closeSearcher
INFO: [collection1] Closing main searcher on request.
Mar 15, 2013 7:21:20 PM org.apache.solr.core.CachingDirectoryFactory close
INFO: Releasing
directory:/root/rohan/solr-4.1.0/example/solr/collection1/data/index
Mar 15, 2013 7:21:20 PM org.apache.solr.core.CachingDirectoryFactory close
INFO: Closing directory when closing
factory:/root/rohan/solr-4.1.0/example/solr/collection1/data
Mar 15, 2013 7:21:20 PM org.apache.solr.core.CachingDirectoryFactory
closeDirectory
INFO: Closing directory:/root/rohan/solr-4.1.0/example/solr/collection1/data
Mar 15, 2013 7:21:20 PM org.apache.solr.core.CachingDirectoryFactory close
INFO: Closing directory when closing
factory:/root/rohan/solr-4.1.0/example/solr/collection1/data/index
Mar 15, 2013 7:21:20 PM org.apache.solr.core.CachingDirectoryFactory
closeDirectory
INFO: Closing
directory:/root/rohan/solr-4.1.0/example/solr/collection1/data/index
Mar 15, 2013 7:21:20 PM org.apache.solr.core.CoreContainer recordAndThrow
SEVERE: Unable to create core: collection1
org.apache.solr.common.SolrException: java.lang.Float cannot be cast to
java.lang.String
at org.apache.solr.core.SolrCore.<init>(SolrCore.java:794)
at org.apache.solr.core.SolrCore.<init>(SolrCore.java:607)
at
org.apache.solr.core.CoreContainer.createFromLocal(CoreContainer.java:1003)
at
org.apache.solr.core.CoreContainer.create(CoreContainer.java:1033)
at org.apache.solr.core.CoreContainer$3.call(CoreContainer.java:629)
at org.apache.solr.core.CoreContainer$3.call(CoreContainer.java:624)
at
java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at
java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:679)
Caused by: java.lang.ClassCastException: java.lang.Float cannot be cast to
java.lang.String
at
org.apache.solr.spelling.AbstractLuceneSpellChecker.init(AbstractLuceneSpellChecker.java:97)
at
org.apache.solr.spelling.IndexBasedSpellChecker.init(IndexBasedSpellChecker.java:57)
at
org.apache.solr.handler.component.SpellCheckComponent.inform(SpellCheckComponent.java:597)
at
org.apache.solr.core.SolrResourceLoader.inform(SolrResourceLoader.java:590)
at org.apache.solr.core.SolrCore.<init>(SolrCore.java:789)
... 13 more
Mar 15, 2013 7:21:20 PM org.apache.solr.common.SolrException log
SEVERE: null:org.apache.solr.common.SolrException: Unable to create core:
collection1
at
org.apache.solr.core.CoreContainer.recordAndThrow(CoreContainer.java:1654)
at
org.apache.solr.core.CoreContainer.create(CoreContainer.java:1039)
at org.apache.solr.core.CoreContainer$3.call(CoreContainer.java:629)
at org.apache.solr.core.CoreContainer$3.call(CoreContainer.java:624)
at
java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at
java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:679)
Caused by: org.apache.solr.common.SolrException: java.lang.Float cannot be
cast to java.lang.String
at org.apache.solr.core.SolrCore.<init>(SolrCore.java:794)
at org.apache.solr.core.SolrCore.<init>(SolrCore.java:607)
at
org.apache.solr.core.CoreContainer.createFromLocal(CoreContainer.java:1003)
at
org.apache.solr.core.CoreContainer.create(CoreContainer.java:1033)
... 10 more
Caused by: java.lang.ClassCastException: java.lang.Float cannot be cast to
java.lang.String
at
org.apache.solr.spelling.AbstractLuceneSpellChecker.init(AbstractLuceneSpellChecker.java:97)
at
org.apache.solr.spelling.IndexBasedSpellChecker.init(IndexBasedSpellChecker.java:57)
at
org.apache.solr.handler.component.SpellCheckComponent.inform(SpellCheckComponent.java:597)
at
org.apache.solr.core.SolrResourceLoader.inform(SolrResourceLoader.java:590)
at org.apache.solr.core.SolrCore.<init>(SolrCore.java:789)
*this was the error and following are the changes in solrcongif.xml*
<requestHandler name="/select" class="solr.SearchHandler">
<!-- default values for query parameters can be specified, these
will be overridden by parameters in the request
-->
<lst name="defaults">
<str name="echoParams">explicit</str>
<int name="rows">10</int>
<str name="indent">true</str>
<str name="wt">json</str>
<str name="defType">edismax</str>
<str name="qf">
title^30.0 url^10.0
</str>
<str name="df">title</str>
<!-- Spell checking defaults -->
<str name="spellcheck">on</str>
<str name="spellcheck.dictionary">default</str>
<str name="spellcheck.dictionary">wordbreak</str>
<str name="spellcheck.onlyMorePopular">false</str>
<str name="spellcheck.extendedResults">false</str>
<str name="spellcheck.count">3</str>
<str name="spellcheck.alternativeTermCount">2</str>
<str name="spellcheck.maxResultsForSuggest">5</str>
<str name="spellcheck.collate">true</str>
<str name="spellcheck.collateExtendedResults">true</str>
<str name="spellcheck.maxCollationTries">5</str>
<str name="spellcheck.maxCollations">3</str>
</lst>
<arr name="last-components">
<str>spellcheck</str>
</arr>
*search components are:*
<searchComponent name="spellcheck" class="solr.SpellCheckComponent">
<!-- Multiple "Spell Checkers" can be declared and used by this
component
-->
<!-- a spellchecker built from a field of the main index -->
<lst name="spellchecker">
<str name="name">default</str>
<str name="classname">solr.IndexBasedSpellChecker</str>
<!-- the spellcheck distance measure used, the default is the
internal levenshtein -->
<str name="field">spell</str>
<str name="distanceMeasure">internal</str>
<!-- minimum accuracy needed to be considered a valid spellcheck
suggestion -->
<float name="accuracy">0.5</float>
<!-- the maximum #edits we consider when enumerating terms: can be 1
or 2 -->
<int name="maxEdits">2</int>
<!-- the minimum shared prefix when enumerating terms -->
<int name="minPrefix">1</int>
<!-- maximum number of inspections per result. -->
<int name="maxInspections">5</int>
<!-- minimum length of a query term to be considered for correction
-->
<int name="minQueryLength">4</int>
<!-- maximum threshold of documents a query term can appear to be
considered for correction -->
<float name="maxQueryFrequency">0.01</float>
<!-- uncomment this to require suggestions to occur in 1% of the
documents
<float name="thresholdTokenFrequency">.01</float>
-->
</lst>
<!-- a spellchecker that can break or combine words. See "/spell"
handler below for usage -->
<lst name="spellchecker">
<str name="name">wordbreak</str>
<str name="classname">solr.WordBreakSolrSpellChecker</str>
<str name="field">spell</str>
<str name="combineWords">true</str>
<str name="breakWords">true</str>
<int name="maxChanges">5</int>
</lst>
<!-- a spellchecker that uses a different distance measure -->
<lst name="spellchecker">
<str name="name">jarowinkler</str>
<str name="field">spell</str>
<str name="classname">solr.DirectSolrSpellChecker</str>
<str
name="distanceMeasure">org.apache.lucene.search.spell.JaroWinklerDistance</str>
</lst>
<str name="queryAnalyzerFieldType">textSpell</str>
</searchComponent>
<!--
The SpellingQueryConverter to convert raw (CommonParams.Q) queries into
tokens. Uses a simple regular expression
to strip off field markup, boosts, ranges, etc. but it is not
guaranteed to match an exact parse from the query parser.
Optional, defaults to solr.SpellingQueryConverter
-->
<queryConverter name="queryConverter"
class="solr.SpellingQueryConverter"/>
*changes in schema.xml :*
<fieldType name="textSpell" class="solr.TextField"
positionIncrementGap="100" omitNorms="true">
<analyzer type="index">
<charFilter class="solr.PatternReplaceCharFilterFactory"
pattern="\\\[\]\(\)\-\,\/\+" replacement=" "/>
<tokenizer class="solr.WhitespaceTokenizerFactory"/>
<filter class="solr.StopFilterFactory" ignoreCase="true"
words="stopwords.txt"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.RemoveDuplicatesTokenFilterFactory"/>
</analyzer>
<analyzer type="query">
<tokenizer class="solr.WhitespaceTokenizerFactory"/>
<filter class="solr.SynonymFilterFactory" synonyms="synonyms.txt"
ignoreCase="true" expand="true"/>
<filter class="solr.StopFilterFactory" ignoreCase="true"
words="stopwords.txt"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.RemoveDuplicatesTokenFilterFactory"/>
</analyzer>
</fieldType>
