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https://issues.apache.org/jira/browse/LUCENE-1879?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12850268#action_12850268
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Michael Busch commented on LUCENE-1879:
---------------------------------------

LUCENE-2324 will be helpful to support multi-threaded parallel-indexing.  If we 
have single-threaded DocumentsWriters, then it should be easy to have a 
ParallelDocumentsWriter? 

> Parallel incremental indexing
> -----------------------------
>
>                 Key: LUCENE-1879
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1879
>             Project: Lucene - Java
>          Issue Type: New Feature
>          Components: Index
>            Reporter: Michael Busch
>            Assignee: Michael Busch
>             Fix For: 3.1
>
>         Attachments: parallel_incremental_indexing.tar
>
>
> A new feature that allows building parallel indexes and keeping them in sync 
> on a docID level, independent of the choice of the MergePolicy/MergeScheduler.
> Find details on the wiki page for this feature:
> http://wiki.apache.org/lucene-java/ParallelIncrementalIndexing 
> Discussion on java-dev:
> http://markmail.org/thread/ql3oxzkob7aqf3jd

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