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From "Michael McCandless (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-2339) Allow Directory.copy() to accept a collection of file names to be copied
Date Mon, 22 Mar 2010 16:05:27 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-2339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12848180#action_12848180
] 

Michael McCandless commented on LUCENE-2339:
--------------------------------------------

bq. I wonder if we could convert these methods from static to members, so it becomes 'from.copyTo(to,
files)' ?

I like this approach.

bq. I believe you can rig some nio-based file copier that bypasses Java completely, so you
don't have to pass multi-gb indexes through your heap when, say, backing up.

NIO's transferTo, right?

For backups I wonder if we should make a copyTo/From that takes an IndexCommit... but maybe
that's going too far.  EG you'd also want it to be incremental (only copy new files, maybe
delete no longer referenced ones, etc.).

> Allow Directory.copy() to accept a collection of file names to be copied
> ------------------------------------------------------------------------
>
>                 Key: LUCENE-2339
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2339
>             Project: Lucene - Java
>          Issue Type: Improvement
>            Reporter: Earwin Burrfoot
>            Assignee: Michael McCandless
>         Attachments: LUCENE-2339.patch
>
>
> Par example, I want to copy files pertaining to a certain commit, and not everything
there is in a Directory.

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