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https://issues.apache.org/jira/browse/SOLR-3245?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13416249#comment-13416249
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Ales Perme commented on SOLR-3245:
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An update: I downloaded the latest dictionaries from
http://extensions.services.openoffice.org/dictionary and unpacked the oxt (it
is actually a zip file), took out the .dic and .aff files and got better
speeds: 55 docs/sec and 90 docs/sec if I disable WordDelimiterFilterFactory.
Stemming is more important than WordDelimiterFilterFactory for me. I hope this
helps in any way.
> Poor performance of Hunspell with Polish Dictionary
> ---------------------------------------------------
>
> Key: SOLR-3245
> URL: https://issues.apache.org/jira/browse/SOLR-3245
> Project: Solr
> Issue Type: Bug
> Components: Schema and Analysis
> Affects Versions: 4.0-ALPHA
> Environment: Centos 6.2, kernel 2.6.32, 2 physical CPU Xeon 5606 (4
> cores each), 32 GB RAM, 2 SSD disks in RAID 0, java version 1.6.0_26, java
> settings -server -Xms4096M -Xmx4096M
> Reporter: Agnieszka
> Labels: performance
> Attachments: pl_PL.zip
>
>
> In Solr 4.0 Hunspell stemmer with polish dictionary has poor performance
> whereas performance of hunspell from
> http://code.google.com/p/lucene-hunspell/ in solr 3.4 is very good.
> Tests shows:
> Solr 3.4, full import 489017 documents:
> StempelPolishStemFilterFactory - 2908 seconds, 168 docs/sec
> HunspellStemFilterFactory - 3922 seconds, 125 docs/sec
> Solr 4.0, full import 489017 documents:
> StempelPolishStemFilterFactory - 3016 seconds, 162 docs/sec
> HunspellStemFilterFactory - 44580 seconds (more than 12 hours), 11 docs/sec
> My schema is quit easy. For Hunspell I have one text field I copy 14 text
> fields to:
> {code:xml}
> "<field name="text" type="text_pl_hunspell" indexed="true" stored="false"
> multiValued="true"/>"
> <copyField source="field1" dest="text"/>
> ....
> <copyField source="field14" dest="text"/>
> {code}
> The "text_pl_hunspell" configuration:
> {code:xml}
> <fieldType name="text_pl_hunspell" class="solr.TextField"
> positionIncrementGap="100">
> <analyzer type="index">
> <tokenizer class="solr.StandardTokenizerFactory"/>
> <filter class="solr.StopFilterFactory"
> ignoreCase="true"
> words="dict/stopwords_pl.txt"
> enablePositionIncrements="true"
> />
> <filter class="solr.LowerCaseFilterFactory"/>
> <filter class="solr.HunspellStemFilterFactory"
> dictionary="dict/pl_PL.dic" affix="dict/pl_PL.aff" ignoreCase="true"
> <!--filter class="solr.KeywordMarkerFilterFactory"
> protected="protwords_pl.txt"/-->
> </analyzer>
> <analyzer type="query">
> <tokenizer class="solr.StandardTokenizerFactory"/>
> <filter class="solr.SynonymFilterFactory"
> synonyms="dict/synonyms_pl.txt" ignoreCase="true" expand="true"/>
> <filter class="solr.StopFilterFactory"
> ignoreCase="true"
> words="dict/stopwords_pl.txt"
> enablePositionIncrements="true"
> />
> <filter class="solr.LowerCaseFilterFactory"/>
> <filter class="solr.HunspellStemFilterFactory"
> dictionary="dict/pl_PL.dic" affix="dict/pl_PL.aff" ignoreCase="true"
> <filter class="solr.KeywordMarkerFilterFactory"
> protected="dict/protwords_pl.txt"/>
> </analyzer>
> </fieldType>
> {code}
> I use Polish dictionary (files stopwords_pl.txt, protwords_pl.txt,
> synonyms_pl.txt are empy)- pl_PL.dic, pl_PL.aff. These are the same files I
> used in 3.4 version.
> For Polish Stemmer the diffrence is only in definion text field:
> {code}
> "<field name="text" type="text_pl" indexed="true" stored="false"
> multiValued="true"/>"
> <fieldType name="text_pl" class="solr.TextField"
> positionIncrementGap="100">
> <analyzer type="index">
> <tokenizer class="solr.StandardTokenizerFactory"/>
> <filter class="solr.StopFilterFactory"
> ignoreCase="true"
> words="dict/stopwords_pl.txt"
> enablePositionIncrements="true"
> />
> <filter class="solr.LowerCaseFilterFactory"/>
> <filter class="solr.StempelPolishStemFilterFactory"/>
> <filter class="solr.KeywordMarkerFilterFactory"
> protected="dict/protwords_pl.txt"/>
> </analyzer>
> <analyzer type="query">
> <tokenizer class="solr.StandardTokenizerFactory"/>
> <filter class="solr.SynonymFilterFactory"
> synonyms="dict/synonyms_pl.txt" ignoreCase="true" expand="true"/>
> <filter class="solr.StopFilterFactory"
> ignoreCase="true"
> words="dict/stopwords_pl.txt"
> enablePositionIncrements="true"
> />
> <filter class="solr.LowerCaseFilterFactory"/>
> <filter class="solr.StempelPolishStemFilterFactory"/>
> <filter class="solr.KeywordMarkerFilterFactory"
> protected="dict/protwords_pl.txt"/>
> </analyzer>
> </fieldType>
> {code}
> One document has 23 fields:
> - 14 text fields copy to one text field (above) that is only indexed
> - 8 other indexed fields (2 strings, 2 tdates, 3 tint, 1 tfloat) The size of
> one document is 3-4 kB.
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