Many thanks to everybody who replied to my message. 1. "A couple of things, your mlt.fl value, must be part of fl. In this case, content_mlt is not included in fl. I think the fl parameter value need to be comma separated. try fl=title,author,content_mlt,score"
Yao, Although I don't understand why mlt.fl must be part of fl (at least, I didn't see this mentioned anywhere), I included this field into fl. But this didn't change anything. As to the syntax, both "fl=title,author,content_mlt,score" and "fl=title author content_mlt score" produced the same output (what, again, was the exactly the same as the one with "fl=title author score"). 2. "You definitely need "mlt=true" if you are not using /solr/mlt." Bill, "mlt=true" was included in the query while making the Solr call from the very beginning. 3. What about http://localhost:8080/solr/select?q=id:10&mlt=true&mlt.fl=content_mlt&mlt.maxqt=%0A5&mlt.interestingTerms=details&fl=title+author+score&qt=mlt Otis, I tried that too and got this: INFO MLTSearchRequestProcessor:69 - solrQuery> q=id%3A10&mlt=true&mlt.fl=content_mlt&mlt.maxqt= 5&mlt.interestingTerms=details&fl=title+author+score&qt=mlt ERROR MLTSearchRequestProcessor:88 - Error executing query INFO MLTSearchRequestProcessor:69 - solrQuery> q=id%3A10&mlt=true&mlt.fl=content_mlt&mlt.maxqt=5&mlt.interestingTerms=details&fl=title+author+content_mlt+score&qt=mlt ERROR MLTSearchRequestProcessor:88 - Error executing query Well, I didn't expect this to be such a hurdle. And I'm sure that hundreds of people before me have already done something similar, haven't they? This really looks bizarre. Thank you all. (Otis, when I saw your name I got a feeling that it was just a matter of seconds till this stubborn calls would start doing their job. :) ) Sergey SergeyG wrote: > > Hi, > > Recently, while implementing the MoreLikeThis search, I've run into the > situation when Solr's mlt query calls don't work. > > More specifically, the following query: > > http://localhost:8080/solr/select?q=id:10&mlt=true&mlt.fl=content_mlt&mlt.maxqt= > 5&mlt.interestingTerms=details&fl=title+author+score > > brings back just the doc with id=10 and nothing else. While using the > GetMethod approach (putting /mlt explicitely into the url), I got back > some results. > > I've been trying to solve this problem for more than a week with no luck. > If anybody has any hint, please help. > > Below, I put logs & outputs from 3 runs: a) Solr; b) GetMethod (/mlt); c) > GetMethod (/select). > > Thanks a lot. > > Regards, > Sergey Goldberg > > > Here're the logs: > > a) Solr (http://localhost:8080/solr/select) > 08.07.2009 15:50:33 org.apache.solr.core.SolrCore execute > INFO: [] webapp=/solr path=/select > params={fl=title+author+score&mlt.fl=content_mlt&q=id:10&mlt= > true&mlt.interestingTerms=details&mlt.maxqt=5&wt=javabin&version=2.2} > hits=1 status=0 QTime=172 > > INFO MLTSearchRequestProcessor:49 - SolrServer url: > http://localhost:8080/solr > INFO MLTSearchRequestProcessor:67 - solrQuery> > q=id%3A10&mlt=true&mlt.fl=content_mlt&mlt.maxqt= > 5&mlt.interestingTerms=details&fl=title+author+score > INFO MLTSearchRequestProcessor:73 - Number of docs found = 1 > INFO MLTSearchRequestProcessor:77 - title = SG_Book; score = 2.098612 > > > b) GetMethod (http://localhost:8080/solr/mlt) > 08.07.2009 16:55:44 org.apache.solr.core.SolrCore execute > INFO: [] webapp=/solr path=/mlt > params={fl=title+author+score&mlt.fl=content_mlt&q=id:10&mlt.max > qt=5&mlt.interestingTerms=details} status=0 QTime=15 > > INFO MLT2SearchRequestProcessor:76 - <?xml version="1.0" > encoding="UTF-8"?> > <response> > <lst name="responseHeader"><int name="status">0</int><int > name="QTime">0</int></lst><result name="match" numFound="1" start="0" > maxScore="2.098612"><doc><float name="score">2.098612</float><arr name=" > author"><str>S.G.</str></arr><str > name="title">SG_Book</str></doc></result><result name="response" n > umFound="4" start="0" maxScore="0.28923997"><doc><float > name="score">0.28923997</float><arr name="author"><str>O. > Henry</str><str>S.G.</str></arr><str name="title">Four Million, > The</str></doc><doc><float name="score">0.08667877</float><arr > name="author"><str>Katherine Mosby</str></arr><str name="title">The Season > of Lillian Dawes</str></doc><doc><float > name="score">0.07947738</float><arr name="author"><str>Jerome K. > Jerome</str></arr><str name="title">Three Men in a > Boat</str></doc><doc><float > name="score">0.047219563</float><arr name="author"><str>Charles > Oliver</str><str>S.G.</str></arr><str name="title">ABC's of > Science</str></doc></result><lst name="interestingTerms"><float > name="content_mlt:ye">1.0</float><float > name="content_mlt:tobin">1.0</float><float > name="content_mlt:a">1.0</float><float > name="content_mlt:i">1.0</float><float > name="content_mlt:his">1.0</float></lst> > </response> > > > c) GetMethod (http://localhost:8080/solr/select) > 08.07.2009 17:06:45 org.apache.solr.core.SolrCore execute > INFO: [] webapp=/solr path=/select > params={fl=title+author+score&mlt.fl=content_mlt&q=id:10&mlt. > maxqt=5&mlt.interestingTerms=details} hits=1 status=0 QTime=16 > > INFO MLT2SearchRequestProcessor:80 - <?xml version="1.0" > encoding="UTF-8"?> > <response> > <lst name="responseHeader"><int name="status">0</int><int > name="QTime">16</int><lst name="params"><str name="fl">title author > score</str><str name="mlt.fl">content_mlt</str><str > name="q">id:10</str><str name="mlt.maxqt">5</str><str > name="mlt.interestingTerms">details</str></lst></lst><result > name="response" numFound="1" start="0" maxScore="2.098612"><doc><float > name="score">2.098612</float><arr name="author"><str>S.G.</str></arr><str > name="title">SG_Book</str></doc></result><lst name="debug"><str > name="rawquerystring">id:10</str><str name="querystring">id:10</str><str > name="parsedq > uery">id:10</str><str name="parsedquery_toString">id:10</str><lst > name="explain"><str name="10"> > 2.098612 = (MATCH) weight(id:10 in 3), product of: > 0.99999994 = queryWeight(id:10), product of: > 2.0986123 = idf(docFreq=1, numDocs=5) > 0.47650534 = queryNorm > 2.0986123 = (MATCH) fieldWeight(id:10 in 3), product of: > 1.0 = tf(termFreq(id:10)=1) > 2.0986123 = idf(docFreq=1, numDocs=5) > 1.0 = fieldNorm(field=id, doc=3) > </str></lst><str name="QParser">OldLuceneQParser</str><lst > name="timing"><double name="time">16.0</double><lst name="prepare"><double > name="time">0.0</double><lst > name="org.apache.solr.handler.component.QueryComponent"><double > name="time">0.0</double></lst><lst > name="org.apache.solr.handler.component.FacetComponent"><double > name="time">0.0</double></lst><lst name="org.apache.solr.handler.component > .MoreLikeThisComponent"><double name="time">0.0</double></lst><lst > name="org.apache.solr.handler.component.HighlightComponent"><double > name="time">0.0</double></lst><lst > name="org.apache.solr.handler.component.DebugComponent"><double > name="time">0.0</double></lst></lst><lst name="process"><double > name="time">16.0</double><lst > name="org.apache.solr.handler.component.QueryComponent"><double > name="time">0.0</double></lst><lst > name="org.apache.solr.handler.component.FacetComponent"><double > name="time">0.0</double></lst><lst > name="org.apache.solr.handler.component.MoreLikeThisComponent"><double > name="time">0.0</double></lst><lst > name="org.apache.solr.handler.component.HighlightComponent"><double > name="time">0.0</double></lst><lst > name="org.apache.solr.handler.component.DebugComponent"><double > name="time">16.0</double></lst></lst></lst></lst> > </response> > > > And here're the relevant entries from solrconfig.xml: > > <requestHandler name="standard" class="solr.SearchHandler" > default="true"> > <!-- default values for query parameters --> > <lst name="defaults"> > <str name="echoParams">explicit</str> > <str name="fl">id,title,author,score</str> > <str name="debugQuery">on</str> > </lst> > </requestHandler> > > <requestHandler name="/mlt" class="solr.MoreLikeThisHandler"> > <lst name="defaults"> > <int name="mlt.mindf">1</int> > <int name="mlt.maxqt">10</int> > </lst> > </requestHandler> > -- View this message in context: http://www.nabble.com/Solr%27s-MLT-query-call-doesn%27t-work-tp24391843p24398857.html Sent from the Solr - 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