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From "Michael McCandless (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-2795) Genericize DirectIOLinuxDir -> UnixDir
Date Mon, 10 Jan 2011 19:58:48 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-2795?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12979719#action_12979719
] 

Michael McCandless commented on LUCENE-2795:
--------------------------------------------

https://issues.apache.org/jira/browse/LUCENE-2500?focusedCommentId=12979588&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#action_12979588
has details on what flags to pass to OS X to bypass its buffer cache...

> Genericize DirectIOLinuxDir -> UnixDir
> --------------------------------------
>
>                 Key: LUCENE-2795
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2795
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Store
>            Reporter: Michael McCandless
>
> 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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