[jira] [Commented] (LUCENE-5468) Hunspell very high memory use when loading dictionary

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

    [ https://issues.apache.org/jira/browse/LUCENE-5468?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13909908#comment-13909908 ] 

Robert Muir commented on LUCENE-5468:
-------------------------------------

I don't think we should let some esoteric options like multiple dictionaries keep this stuff unusable.

So I'm happy to just fork the entire stuff into a different package (hunspell2 or something), so we have a reasonably efficient version that doesnt have these esoteric options. The old stuff can stay as is, i do not care.

> Hunspell very high memory use when loading dictionary
> -----------------------------------------------------
>
>                 Key: LUCENE-5468
>                 URL: https://issues.apache.org/jira/browse/LUCENE-5468
>             Project: Lucene - Core
>          Issue Type: Bug
>    Affects Versions: 3.5
>            Reporter: Maciej Lisiewski
>            Priority: Minor
>         Attachments: patch.txt
>
>
> Hunspell stemmer requires gigantic (for the task) amounts of memory to load dictionary/rules files. 
> For example loading a 4.5 MB polish dictionary (with empty index!) will cause whole core to crash with various out of memory errors unless you set max heap size close to 2GB or more.
> By comparison Stempel using the same dictionary file works just fine with 1/8 of that (and possibly lower values as well).
> Sample error log entries:
> http://pastebin.com/fSrdd5W1
> http://pastebin.com/Lmi0re7Z



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