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https://jira.duraspace.org/browse/DS-1377?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=26805#comment-26805
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Ivan Masár commented on DS-1377:
--------------------------------
It's interesting that nobody reported any problems during the whole 1.8 cycle.
Therefore I currently lean towards letting it be for 3.0. Do you have any
examples of specific problems this causes?
> Lucene searches changed behaviour at DSpace 1.8
> -----------------------------------------------
>
> Key: DS-1377
> URL: https://jira.duraspace.org/browse/DS-1377
> Project: DSpace
> Issue Type: Bug
> Affects Versions: 1.8.0, 1.8.1, 1.8.2, 3.0
> Reporter: Robin Taylor
>
> At DSpace 1.8 the underlying Lucene libraries were upgraded from version 2.x
> to 3.3, this appears to have changed the default search behaviour.
> Prior to version 3.x the default Lucene Analyzer behaviour was set to be
> English language. At 3.x Lucene abandoned this bias and the standard
> behaviour became more language neutral. To continue using the 'old' behaviour
> you either had to specify a 'matchVersion' of 2.x or change your local code
> to use what was now called the ClassicFilter/Tokeniser. At 1.8 the DSpace
> code was changed to specify a matchVersion of 3.3 but without making the
> necessary code changes to use the ClassicFilter. As a result the default
> behaviour was no longer English language.
> For a quick fix look for any references to 'LUCENE_3' in the DSpace code and
> change them to be LUCENE_29.
> For a medium term fix we should change the DSpace code to use the updated
> Lucene code.
> For a long term fix we should dump Lucene and consolidate around Solr.
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