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Date: Wed, 6 Jul 2011 07:18:16 +0000 (UTC)
From: "Varun Thacker (JIRA)" <jira@apache.org>
To: dev@lucene.apache.org
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Subject: [jira] [Commented] (LUCENE-2795) Genericize DirectIOLinuxDir ->
 UnixDir
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    [ https://issues.apache.org/jira/browse/LUCENE-2795?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13060331#comment-13060331 ] 

Varun Thacker commented on LUCENE-2795:
---------------------------------------

{quote}
Hey Varun - saw you asked for someone with a mac to run some code for you in IRC but you popped off before I saw - what do you need? Just apply the patch and run the tests?
{quote} 

This patch will apply to the LUCENE2793 branch. Othewise in file : lucene/contrib/misc/src/java/org/apache/lucene/store/NativePosixUtil.cpp after line 117 inside the "if" add this line - {code} fcntl(fd, F_NOCACHE, 1); {code}

And then by running {code}ant build-native-unix{code} from the /contrib/misc folder to check if it compiles successfully. 

Thanks.

> Genericize DirectIOLinuxDir -> UnixDir
> --------------------------------------
>
>                 Key: LUCENE-2795
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2795
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: core/store
>            Reporter: Michael McCandless
>            Assignee: Varun Thacker
>              Labels: gsoc2011, lucene-gsoc-11, mentor
>         Attachments: LUCENE-2795.patch
>
>
> Today DirectIOLinuxDir is tricky/dangerous to use, because you only want to use it for indexWriter and not IndexReader (searching).  It's a trap.
> But, once we do LUCENE-2793, we can make it fully general purpose because then a single native Dir impl can be used.
> I'd also like to make it generic to other Unices, if we can, so that it becomes UnixDirectory.

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