[jira] Resolved: (LUCENE-1183) TRStringDistance uses way too much memory (with patch)

["Robert Muir (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LUCENE-1183?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Robert Muir resolved LUCENE-1183.
---------------------------------

    Resolution: Fixed

Committed revision 983298 (trunk) and small optimizations 983299 (3x)

> TRStringDistance uses way too much memory (with patch)
> ------------------------------------------------------
>
>                 Key: LUCENE-1183
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1183
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: contrib/*
>    Affects Versions: 1.9, 2.0.0, 2.1, 2.2, 2.3
>            Reporter: Cédrik LIME
>            Assignee: Robert Muir
>            Priority: Minor
>             Fix For: 3.0
>
>         Attachments: FuzzyTermEnum.patch, LUCENE-1183.patch, LUCENE-1183_3x.patch, TRStringDistance.java, TRStringDistance.patch
>
>   Original Estimate: 0.17h
>  Remaining Estimate: 0.17h
>
> The implementation of TRStringDistance is based on version 2.1 of org.apache.commons.lang.StringUtils#getLevenshteinDistance(String, String), which uses an un-optimized implementation of the Levenshtein Distance algorithm (it uses way too much memory). Please see Bug 38911 (http://issues.apache.org/bugzilla/show_bug.cgi?id=38911) for more information.
> The commons-lang implementation has been heavily optimized as of version 2.2 (3x speed-up). I have reported the new implementation to TRStringDistance.

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