Hello, I have Solr 4 configured with several fields using different similarity classes according to: http://wiki.apache.org/solr/SchemaXml#Similarity
However, I get this error message: " FieldType 'DFR' is configured with a similarity, but the global similarity does not support it: class org.apache.solr.search.similarities.DefaultSimilarityFactory" Excerpt from schema.xml below. What I am trying to do is have any field that doesn't specify a similarity to use the default, but to set up 3 specific fields to use the DFR, IB, and BM25 similarities respectively. I think I'm missing something here. Can someone point me to documentation or examples? Tom ---------------- Simplified schema.xml excerpt: <fieldType name="CJKFullText" class="solr.TextField" positionIncrementGap="100" autoGeneratePhraseQueries="false"> <analyzer type="index"> <tokenizer class="solr.ICUTokenizerFactory"/> <filter class="solr.ICUFoldingFilterFactory"/> </analyzer> <analyzer type="query"> <tokenizer class="solr.ICUTokenizerFactory"/> <filter class="solr.ICUFoldingFilterFactory"/> </analyzer> </fieldType> <!--###########################################################--> <!-- relevance rank testing --> <fieldType name="DFR" class="solr.TextField" positionIncrementGap="100" autoGeneratePhraseQueries="false"> <analyzer type="index"> <tokenizer class="solr.ICUTokenizerFactory"/> <filter class="solr.ICUFoldingFilterFactory"/> </analyzer> <analyzer type="query"> <tokenizer class="solr.ICUTokenizerFactory"/> <filter class="solr.ICUFoldingFilterFactory"/> </analyzer> <similarity class="solr.DFRSimilarityFactory"> <str name="basicModel">I(F)</str> <str name="afterEffect">B</str> <str name="normalization">H2</str> </similarity> </fieldType> <fieldType name="IB" class="solr.TextField" positionIncrementGap="100" autoGeneratePhraseQueries="false"> <analyzer type="index"> <tokenizer class="solr.ICUTokenizerFactory"/> <filter class="solr.ICUFoldingFilterFactory"/> </analyzer> <analyzer type="query"> <tokenizer class="solr.ICUTokenizerFactory"/> <filter class="solr.ICUFoldingFilterFactory"/> </analyzer> <similarity class="solr.IBSimilarityFactory"> <str name="distribution">SPL</str> <str name="lambda">DF</str> <str name="normalization">H2</str> </similarity> </fieldType> <fieldType name="BM25" class="solr.TextField" positionIncrementGap="100" autoGeneratePhraseQueries="false"> <analyzer type="index"> <tokenizer class="solr.ICUTokenizerFactory"/> <filter class="solr.ICUFoldingFilterFactory"/> </analyzer> <analyzer type="query"> <tokenizer class="solr.ICUTokenizerFactory"/> <filter class="solr.ICUFoldingFilterFactory"/> </analyzer> <similarity class="solr.BM25SimilarityFactory"> <!-- start with the defaults --> <float name="k1">1.2</float> <float name="b">0.75</float> </similarity> </fieldType> =======================================================================================- Excerpt from actual schema.xml <fieldType name="CJKFullText" class="solr.TextField" positionIncrementGap="100" autoGeneratePhraseQueries="false"> <analyzer type="index"> <tokenizer class="solr.ICUTokenizerFactory"/> <filter class="solr.ICUFoldingFilterFactory"/> <filter class="solr.CJKBigramFilterFactory" han="true" hiragana="true" katakana="false" hangul="false" /> <filter class="solr.CommonGramsFilterFactory" words="1000common.txt" /> </analyzer> <analyzer type="query"> <tokenizer class="solr.ICUTokenizerFactory"/> <filter class="solr.ICUFoldingFilterFactory"/> <filter class="solr.CJKBigramFilterFactory" han="true" hiragana="true" katakana="false" hangul="false" /> <filter class="solr.CommonGramsQueryFilterFactory" words="1000common.txt" /> </analyzer> </fieldType> <!--###########################################################--> <!-- relevance rank testing --> <fieldType name="DFR" class="solr.TextField" positionIncrementGap="100" autoGeneratePhraseQueries="false"> <analyzer type="index"> <tokenizer class="solr.ICUTokenizerFactory"/> <filter class="solr.ICUFoldingFilterFactory"/> <filter class="solr.CJKBigramFilterFactory" han="true" hiragana="true" katakana="false" hangul="false" /> <filter class="solr.CommonGramsFilterFactory" words="1000common.txt" /> </analyzer> <analyzer type="query"> <tokenizer class="solr.ICUTokenizerFactory"/> <filter class="solr.ICUFoldingFilterFactory"/> <filter class="solr.CJKBigramFilterFactory" han="true" hiragana="true" katakana="false" hangul="false" /> <filter class="solr.CommonGramsQueryFilterFactory" words="1000common.txt" /> </analyzer> <similarity class="solr.DFRSimilarityFactory"> <str name="basicModel">I(F)</str> <str name="afterEffect">B</str> <str name="normalization">H2</str> </similarity> </fieldType> <fieldType name="IB" class="solr.TextField" positionIncrementGap="100" autoGeneratePhraseQueries="false"> <analyzer type="index"> <tokenizer class="solr.ICUTokenizerFactory"/> <filter class="solr.ICUFoldingFilterFactory"/> <filter class="solr.CJKBigramFilterFactory" han="true" hiragana="true" katakana="false" hangul="false" /> <filter class="solr.CommonGramsFilterFactory" words="1000common.txt" /> </analyzer> <analyzer type="query"> <tokenizer class="solr.ICUTokenizerFactory"/> <filter class="solr.ICUFoldingFilterFactory"/> <filter class="solr.CJKBigramFilterFactory" han="true" hiragana="true" katakana="false" hangul="false" /> <filter class="solr.CommonGramsQueryFilterFactory" words="1000common.txt" /> </analyzer> <similarity class="solr.IBSimilarityFactory"> <str name="distribution">SPL</str> <str name="lambda">DF</str> <str name="normalization">H2</str> </similarity> </fieldType> <fieldType name="BM25" class="solr.TextField" positionIncrementGap="100" autoGeneratePhraseQueries="false"> <analyzer type="index"> <tokenizer class="solr.ICUTokenizerFactory"/> <filter class="solr.ICUFoldingFilterFactory"/> <filter class="solr.CJKBigramFilterFactory" han="true" hiragana="true" katakana="false" hangul="false" /> <filter class="solr.CommonGramsFilterFactory" words="1000common.txt" /> </analyzer> <analyzer type="query"> <tokenizer class="solr.ICUTokenizerFactory"/> <filter class="solr.ICUFoldingFilterFactory"/> <filter class="solr.CJKBigramFilterFactory" han="true" hiragana="true" katakana="false" hangul="false" /> <filter class="solr.CommonGramsQueryFilterFactory" words="1000common.txt" /> </analyzer> <similarity class="solr.BM25SimilarityFactory"> <!-- start with the defaults --> <float name="k1">1.2</float> <float name="b">0.75</float> </similarity> </fieldType>