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From "Uwe Schindler (JIRA)" <>
Subject [jira] Updated: (LUCENE-1658) Absorb NIOFSDirectory into FSDirectory
Date Mon, 01 Jun 2009 08:16:07 GMT


Uwe Schindler updated LUCENE-1658:

    Attachment: LUCENE-1658-take3.patch

Updated patch: I forgot to add a check, if the IndexInput was already closed.

> Absorb NIOFSDirectory into FSDirectory
> --------------------------------------
>                 Key: LUCENE-1658
>                 URL:
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Store
>            Reporter: Michael McCandless
>            Assignee: Uwe Schindler
>            Priority: Minor
>             Fix For: 2.9
>         Attachments: LUCENE-1658-take2.patch, LUCENE-1658-take2.patch, LUCENE-1658-take3.patch,
LUCENE-1658-take3.patch, LUCENE-1658-take3.patch, LUCENE-1658-take3.patch, LUCENE-1658-take3.patch,
LUCENE-1658.patch, LUCENE-1658.patch, LUCENE-1658.patch
> I think whether one uses* vs java.nio.* or eventually
> java.nio2.*, or some other means, is an under-the-hood implementation
> detail of FSDirectory and doesn't merit a whole separate class.
> I think FSDirectory should be the core class one uses when one's index
> is in the filesystem.
> So, I'd like to deprecate NIOFSDirectory, absorbing it into
> FSDirectory, and add a setting "useNIO" to FSDirectory.  It should
> default to "true" for non-Windows OSs, because it gives far better
> concurrent performance on all platforms but Windows (due to known Sun
> JRE issue

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