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https://issues.apache.org/jira/browse/LUCENE-2575?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12907628#action_12907628
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Jason Rutherglen commented on LUCENE-2575:
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Actually, have said that, we don't need to pre-allocate the forwarding address
because we're copy-on-writing the byte[]s. So I guess we're good!
> Concurrent byte and int block implementations
> ---------------------------------------------
>
> Key: LUCENE-2575
> URL: https://issues.apache.org/jira/browse/LUCENE-2575
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Index
> Affects Versions: Realtime Branch
> Reporter: Jason Rutherglen
> Fix For: Realtime Branch
>
>
> The current *BlockPool implementations aren't quite concurrent.
> We really need something that has a locking flush method, where
> flush is called at the end of adding a document. Once flushed,
> the newly written data would be available to all other reading
> threads (ie, postings etc). I'm not sure I understand the slices
> concept, it seems like it'd be easier to implement a seekable
> random access file like API. One'd seek to a given position,
> then read or write from there. The underlying management of byte
> arrays could then be hidden?
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