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From "Michael McCandless (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-3897) KuromojiTokenizer fails with large docs
Date Wed, 21 Mar 2012 16:11:51 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-3897?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13234455#comment-13234455
] 

Michael McCandless commented on LUCENE-3897:
--------------------------------------------

I think the problem is when we force a backtrace (if it's >= 1024 chars since the last
backtrace)... I think we are not correctly pruning all paths in this case.

Unlike the natural backtrace, which happens whenever there is only 1 path (ie the parsing
is unambiguous from that point backwards), the forced backtrace may have more than one live
path.

Have to mull how to fix...
                
> KuromojiTokenizer fails with large docs
> ---------------------------------------
>
>                 Key: LUCENE-3897
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3897
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: modules/analysis
>            Reporter: Robert Muir
>             Fix For: 3.6, 4.0
>
>
> just shoving largeish random docs triggers asserts like:
> {noformat}
>     [junit] Caused by: java.lang.AssertionError: backPos=4100 vs lastBackTracePos=5120
>     [junit] 	at org.apache.lucene.analysis.kuromoji.KuromojiTokenizer.backtrace(KuromojiTokenizer.java:907)
>     [junit] 	at org.apache.lucene.analysis.kuromoji.KuromojiTokenizer.parse(KuromojiTokenizer.java:756)
>     [junit] 	at org.apache.lucene.analysis.kuromoji.KuromojiTokenizer.incrementToken(KuromojiTokenizer.java:403)
>     [junit] 	at org.apache.lucene.analysis.BaseTokenStreamTestCase.checkRandomData(BaseTokenStreamTestCase.java:404)
> {noformat}
> But, you get no seed...
> I'll commit the test case and @Ignore it.

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