search slop problem introduced somewhere between Solr 1.4 and Solr 3.5
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Key: SOLR-3158
URL: https://issues.apache.org/jira/browse/SOLR-3158
Project: Solr
Issue Type: Bug
Components: search
Affects Versions: 3.5
Reporter: Naomi Dushay
In upgrading from Solr 1.4 to Solr 3.5, the following phrase searches stopped
working in dismax:
"The Beatles as musicians : Revolver through the Anthology"
"Color-blindness [print/digital]; its dangers and its detection"
Both of these queries have a repeated work, and have many terms. It's not the
number of terms or the colon surrounded by spaces, because the following phrase
search works in Solr 3.5 (and Solr 1.4):
"International encyclopedia of revolution and protest : 1500 to the present"
With Robert Muir's help, we have narrowed the problem down to slop (proximity
in lucene QueryParser, query slop in dismax). I have included debugQuery
details for the Beatles search; I confirmed the same behavior with the
color-blindness search.
Solr 3.5: it fails when (query) slop setting isn't 0.
----
lucene QueryParser with proximity set to 1 (or anything > 0) : no match
URL: q=all_search:"The Beatles as musicians : Revolver through the
Anthology"~1
final query: all_search:"the beatl as musician revolv through the antholog"~1
lucene QueryParser with proximity set to 0: result!
URL: q=all_search:"The Beatles as musicians : Revolver through the
Anthology"
final query: all_search:"the beatl as musician revolv through the antholog"
6.0562754 = (MATCH) weight(all_search:"the beatl as musician revolv through
the antholog" in 1064395), product of:
<snip>
48.450203 = idf(all_search: the=3531140 beatl=398 as=645923
musician=11805 revolv=872 through=81366 the=3531140 antholog=11611)
<snip>
dismax QueryParser with qs=1: no match
ps=0
URL: qf=all_search&pf=all_search&q="The Beatles as musicians : Revolver
through the Anthology"&qs=1&ps=0
final query: +(all_search:"the beatl as musician revolv through the
antholog"~1)~0.01 (all_search:"the beatl as musician revolv through the
antholog")~0.01
ps=1
URL: qf=all_search&pf=all_search&q="The Beatles as musicians : Revolver
through the Anthology"&qs=1&ps=1
final query: +(all_search:"the beatl as musician revolv through the
antholog"~1)~0.01 (all_search:"the beatl as musician revolv through the
antholog"~1)~0.01
dismax QueryParser with qs=0: result!
ps=0
URL: qf=all_search&pf=all_search&q="The Beatles as musicians : Revolver
through the Anthology"&qs=0&ps=0
final query: +(all_search:"the beatl as musician revolv through the
antholog")~0.01 (all_search:"the beatl as musician revolv through the
antholog")~0.01
ps=1
URL: qf=all_search&pf=all_search&q="The Beatles as musicians : Revolver
through the Anthology"&qs=0&ps=1
final query: +(all_search:"the beatl as musician revolv through the
antholog")~0.01 (all_search:"the beatl as musician revolv through the
antholog"~1)~0.01
8.564867 = (MATCH) sum of:
4.2824335 = (MATCH) weight(all_search:"the beatl as musician revolv through
the antholog" in 1064395), product of:
<snip>
48.450203 = idf(all_search: the=3531140 beatl=398 as=645923
musician=11805 revolv=872 through=81366 the=3531140 antholog=11611)
<snip>
Solr 1.4: it works regardless of slop settings
----
lucene QueryParser with any proximity value: result!
~0
URL: q=all_search:"The Beatles as musicians : Revolver through the
Anthology"
final query: all_search:"the beatl as musician revolv through the antholog"
~1
URL: q=all_search:"The Beatles as musicians : Revolver through the
Anthology"~1
final query: all_search:"the beatl as musician revolv through the antholog"~1
5.2672544 = fieldWeight(all_search:"the beatl as musician revolv through the
antholog" in 3469163), product of:
<snip>
48.157753 = idf(all_search: the=3549637 beatl=392 as=751093 musician=11992
revolv=822 through=88522 the=3549637 antholog=11246)
<snip>
dismax QueryParser with any qs: result!
qs=0, ps=0
URL: qf=all_search&pf=all_search&q="The Beatles as musicians : Revolver
through the Anthology"&qs=0&ps=0
final query: +(all_search:"the beatl as musician revolv through the
antholog")~0.01 (all_search:"the beatl as musician revolv through the
antholog")~0.01
qs=0, ps=1
URL: qf=all_search&pf=all_search&q="The Beatles as musicians : Revolver
through the Anthology"&qs=0&ps=1
final query: +(all_search:"the beatl as musician revolv through the
antholog")~0.01 (all_search:"the beatl as musician revolv through the
antholog"~1)~0.01
dismax QueryParser with qs=0: result!
qs=1, ps=0
URL: qf=all_search&pf=all_search&q="The Beatles as musicians : Revolver
through the Anthology"&qs=1&ps=0
final query: +(all_search:"the beatl as musician revolv through the
antholog"~1)~0.01 (all_search:"the beatl as musician revolv through the
antholog")~0.01
qs=1, ps=1
URL: qf=all_search&pf=all_search&q="The Beatles as musicians : Revolver
through the Anthology"&qs=1&ps=1
final query: +(all_search:"the beatl as musician revolv through the
antholog"~1)~0.01 (all_search:"the beatl as musician revolv through the
antholog"~1)~0.01
7.4490223 = (MATCH) sum of:
3.7245111 = weight(all_search:"the beatl as musician revolv through the
antholog"~1 in 3469163), product of:
<snip>
48.157753 = idf(all_search: the=3549637 beatl=392 as=751093
musician=11992 revolv=822 through=88522 the=3549637 antholog=11246)
<snip>
More information:
schema.xml:
<field name="all_search" type="text" indexed="true" stored="false" />
solr 3.5:
<fieldtype name="text" class="solr.TextField" positionIncrementGap="100"
autoGeneratePhraseQueries="true">
<analyzer>
<tokenizer class="solr.WhitespaceTokenizerFactory" />
<filter class="solr.ICUFoldingFilterFactory"/>
<filter class="solr.WordDelimiterFilterFactory"
splitOnCaseChange="1" generateWordParts="1" catenateWords="1"
splitOnNumerics="0" generateNumberParts="1" catenateNumbers="1"
catenateAll="0" preserveOriginal="0" stemEnglishPossessive="1" />
<filter class="solr.EnglishPorterFilterFactory"
protected="protwords.txt" />
<filter class="solr.RemoveDuplicatesTokenFilterFactory" />
</analyzer>
</fieldtype>
solr1.4:
<fieldtype name="text" class="solr.TextField" positionIncrementGap="100">
<analyzer>
<tokenizer class="solr.WhitespaceTokenizerFactory" />
<filter class="schema.UnicodeNormalizationFilterFactory"
version="icu4j" composed="false" remove_diacritics="true"
remove_modifiers="true" fold="true" />
<filter class="solr.WordDelimiterFilterFactory"
splitOnCaseChange="1" generateWordParts="1" catenateWords="1"
splitOnNumerics="0" generateNumberParts="1" catenateNumbers="1"
catenateAll="0" preserveOriginal="0" stemEnglishPossessive="1" />
<filter class="solr.LowerCaseFilterFactory" />
<filter class="solr.EnglishPorterFilterFactory"
protected="protwords.txt" />
<filter class="solr.RemoveDuplicatesTokenFilterFactory" />
</analyzer>
</fieldtype>
And the analysis page shows the same results for Solr 3.5 and 1.4
Solr 3.5:
position 1 2 3 4 5 6 7 8
term text the beatl as musician revolv through the
antholog
keyword false false false false false false false false
startOffset 0 4 12 15 27 36 44 48
endOffset 3 11 14 24 35 43 47 57
type word word word word word word word word
Solr 1.4:
term position 1 2 3 4 5 6 7 8
term text the beatl as musician revolv through the
antholog
term type word word word word word word word word
source start,end 0,3 4,11 12,14 15,24 27,35 36,43 44,47
48,57
For debug purposes, we can consider the Solr document as:
<doc>
<str name="all_search">The Beatles as musicians : Revolver through the
Anthology</str>
</doc>
I can't attached the full SolrDoc as all_search is indexed, but not stored, and
I use SolrJ to write to the index from java objects ... plus our objects have a
zillion fields (I work in a library with very rich metadata and very exacting
solr fields). I have attached the Solr 3.5 schema and solrconfig, but they are
big and ugly for the same reasons.
For more details, see the erroneously titled email thread "result present in
Solr 1.4 but missing in Solr 3.5, dismax only" started on 2012-02-22 on
[email protected].
- Naomi
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