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https://issues.apache.org/jira/browse/LUCENE-2471?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12967210#action_12967210
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Shai Erera commented on LUCENE-2471:
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bq. I think the problem actually wasn't interrupting but some sort of race
condition?
Could be, I don't remember the exact details.
I totally agree with you, though it's like a "hen and egg" situation - we
cannot develop anything safe until we have good threaded unit tests, and we can
never know we have those until we have any implementation that might break. So
I personally don't mind if we pursue implementation of FileChannel copying, in
NIOFSDirectory only, and then investigate the current threaded indexing/search
tests and add some if we think something's missing. But currently we're in sort
of a limbo :).
Anyway, I don't think it's related to that issue and can be handled in a
separate issue. If you agree, and assuming nothing more should be done here, we
can close this one.
> Supporting bulk copies in Directory
> -----------------------------------
>
> Key: LUCENE-2471
> URL: https://issues.apache.org/jira/browse/LUCENE-2471
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Store
> Reporter: Earwin Burrfoot
> Fix For: 3.1, 4.0
>
>
> A method can be added to IndexOutput that accepts IndexInput, and writes
> bytes using it as a source.
> This should be used for bulk-merge cases (offhand - norms, docstores?). Some
> Directories can then override default impl and skip intermediate buffers
> (NIO, MMap, RAM?).
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