[jira] [Commented] (LUCENE-4848) Add Directory implementations using NIO2 APIs

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[jira] [Commented] (LUCENE-4848) Add Directory implementations using NIO2 APIs

JIRA jira@apache.org

    [ https://issues.apache.org/jira/browse/LUCENE-4848?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13607546#comment-13607546 ]

Robert Muir commented on LUCENE-4848:
-------------------------------------

{quote}
The patch still does not pass the test suite because of AsyncFSDir daemon threads.
{quote}

Maybe this new directory should be spun off into a separate issue? Do we have any idea how it performs on different operating systems? Should it be in core lucene? Can we nuke WindowsDirectory? I just want to understand the benefits, because it seems it does an async IO request but then blocks on the future to return back. so this seems no different than sync io to me. Besides, the rest of this patch is plenty for one issue since its the .store API (we need to proceed with caution).


               

> Add Directory implementations using NIO2 APIs
> ---------------------------------------------
>
>                 Key: LUCENE-4848
>                 URL: https://issues.apache.org/jira/browse/LUCENE-4848
>             Project: Lucene - Core
>          Issue Type: Task
>            Reporter: Michael Poindexter
>            Assignee: Uwe Schindler
>            Priority: Minor
>         Attachments: jdk7directory.zip, LUCENE-4848-MMapDirectory.patch, LUCENE-4848.patch, LUCENE-4848.patch, LUCENE-4848.patch, LUCENE-4848.patch
>
>
> I have implemented 3 Directory subclasses using NIO2 API's (available on JDK7).  These may be suitable for inclusion in a Lucene contrib module.
> See the mailing list at http://lucene.markmail.org/thread/lrv7miivzmjm3ml5 for more details about this code and the advantages it provides.
> The code is attached as a zip to this issue.  I'll be happy to make any changes requested.  I've included some minimal smoke tests, but any help in how to use the normal Lucene tests to perform more thorough testing would be appreciated.

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