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