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From "Hoss Man (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-727) MMapDirectory can't create new index on Windows
Date Tue, 28 Nov 2006 18:52:22 GMT
    [ http://issues.apache.org/jira/browse/LUCENE-727?page=comments#action_12454073 ] 
            
Hoss Man commented on LUCENE-727:
---------------------------------

Per robert engels on java-dev...

> This is a known JDK issue with memory mapping a file.
> 
> The references may not be GC'd at the time the request to delete is
> performed, and thus you will get an IOException.
> 
> See http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4715154

...so it may not be possible to fix this.

> MMapDirectory can't create new index on Windows
> -----------------------------------------------
>
>                 Key: LUCENE-727
>                 URL: http://issues.apache.org/jira/browse/LUCENE-727
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: Index
>    Affects Versions: 2.0.0
>         Environment: Windows XP, JDK 1.4
>            Reporter: benson margulies
>         Attachments: lucenewindowsmmaptest.tgz
>
>
> When I set the system property to request the use of the mmap directory, and start building
a large index, the process dies with an IOException trying to delete a file. Apparently, Lucene
isn't closing down the memory map before deleting the file.

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