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From "Steven Rowe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-3188) The class from cotrub directory org.apache.lucene.index.IndexSplitter creates a non correct index
Date Sat, 11 Jun 2011 14:03:58 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-3188?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13047900#comment-13047900
] 

Steven Rowe commented on LUCENE-3188:
-------------------------------------

Mike McCandless reviewed for me; see [the IRC log|http://colabti.org/irclogger/irclogger_log/lucene-dev?date=2011-06-11#l45].
 

In summary: This is a bug, and the fix is appropriate.  The problem is that the split index
is created with an incorrect next-segment-name counter (always 0).  A simpler fix than Ivan's
would be to copy the counter over from the source index.  Also, it would be good to include
a check for this problem to the CheckIndex tool:

bq. mikemccand: ie it'd just verify sis.counter is > all segs in the index

I'll make a patch with these changes.


> The class from cotrub directory org.apache.lucene.index.IndexSplitter creates a non correct
index
> -------------------------------------------------------------------------------------------------
>
>                 Key: LUCENE-3188
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3188
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: modules/other
>    Affects Versions: 3.0, 3.2
>         Environment: Bug is present for all environments.
> I used in this case - Windows Server 2003, Java Hot Spot Virtual Machine.
>            Reporter: Ivan Dimitrov Vasilev
>            Assignee: Steven Rowe
>            Priority: Minor
>             Fix For: 3.3, 4.0
>
>         Attachments: IndexSplitter.java, LUCENE-3188.patch, LUCENE-3188.patch, TestIndexSplitter.java
>
>
> When using the method IndexSplitter.split(File destDir, String[] segs) from the Lucene
cotrib directory (contrib/misc/src/java/org/apache/lucene/index) it creates an index with
segments descriptor file with wrong data. Namely wrong is the number representing the name
of segment that would be created next in this index.
> If some of the segments of the index already has this name this results either to impossibility
to create new segment or in crating of an corrupted segment.

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