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From "Yonik Seeley (JIRA)" <j...@apache.org>
Subject [jira] [Reopened] (LUCENE-3233) HuperDuperSynonymsFilterâ„¢
Date Fri, 26 Aug 2011 15:50:29 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-3233?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Yonik Seeley reopened LUCENE-3233:
----------------------------------

      Assignee:     (was: Robert Muir)

Looks like that when Solr's synonym parsing was moved to the analysis module, it was also
rewritten, introducing escaping bugs.

Examples:
a\,a is no longer treated as a single token
a\=>a is no longer treated as a single token
a\ta is treated as "ata" instead of containing a tab character

I didn't do a full review, so I'm not sure if there are other differences in behavior.

> HuperDuperSynonymsFilterâ„¢
> -------------------------
>
>                 Key: LUCENE-3233
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3233
>             Project: Lucene - Java
>          Issue Type: Improvement
>            Reporter: Robert Muir
>             Fix For: 3.4, 4.0
>
>         Attachments: LUCENE-3223.patch, LUCENE-3233.patch, LUCENE-3233.patch, LUCENE-3233.patch,
LUCENE-3233.patch, LUCENE-3233.patch, LUCENE-3233.patch, LUCENE-3233.patch, LUCENE-3233.patch,
LUCENE-3233.patch, LUCENE-3233.patch, LUCENE-3233.patch, LUCENE-3233.patch, LUCENE-3233.patch,
LUCENE-3233.patch, LUCENE-3233.patch, LUCENE-3233.patch, synonyms.zip
>
>
> The current synonymsfilter uses a lot of ram and cpu, especially at build time.
> I think yesterday I heard about "huge synonyms files" three times.
> So, I think we should use an FST-based structure, sharing the inputs and outputs.
> And we should be more efficient with the tokenStream api, e.g. using save/restoreState
instead of cloneAttributes()

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