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From Rafał Kuć (JIRA) <>
Subject [jira] [Updated] (LUCENE-4542) Make RECURSION_CAP in HunspellStemmer configurable
Date Wed, 07 Nov 2012 13:35:12 GMT


Rafał Kuć updated LUCENE-4542:

    Attachment: LUCENE-4542-with-solr.patch

Chris I've attached a second patch which includes changes to Solr HunspellFilter and its factory.
Please review it and say if you want any changes to be made to it. I'll be glad to do it.
> Make RECURSION_CAP in HunspellStemmer configurable
> --------------------------------------------------
>                 Key: LUCENE-4542
>                 URL:
>             Project: Lucene - Core
>          Issue Type: Improvement
>          Components: modules/analysis
>    Affects Versions: 4.0
>            Reporter: Piotr
>            Assignee: Chris Male
>         Attachments: LUCENE-4542.patch, LUCENE-4542-with-solr.patch
> Currently there is 
> private static final int RECURSION_CAP = 2;
> in the code of the class HunspellStemmer. It makes using hunspell with several dictionaries
almost unusable, due to bad performance (f.ex. it costs 36ms to stem long sentence in latvian
for recursion_cap=2 and 5 ms for recursion_cap=1). It would be nice to be able to tune this
number as needed.
> AFAIK this number (2) was chosen arbitrary.
> (it's a first issue in my life, so please forgive me any mistakes done).

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