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https://issues.apache.org/jira/browse/LUCENE-2840?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Smiley updated LUCENE-2840:
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Fix Version/s: (was: 4.7)
4.8
> Multi-Threading in IndexSearcher (after removal of MultiSearcher and
> ParallelMultiSearcher)
> -------------------------------------------------------------------------------------------
>
> Key: LUCENE-2840
> URL: https://issues.apache.org/jira/browse/LUCENE-2840
> Project: Lucene - Core
> Issue Type: Sub-task
> Components: core/search
> Reporter: Uwe Schindler
> Priority: Minor
> Fix For: 4.8
>
>
> Spin-off from parent issue:
> {quote}
> We should discuss about how many threads should be spawned. If you have an
> index with many segments, even small ones, I think only the larger segments
> should be separate threads, all others should be handled sequentially. So
> maybe add a maxThreads cound, then sort the IndexReaders by maxDoc and then
> only spawn maxThreads-1 threads for the bigger readers and then one
> additional thread for the rest?
> {quote}
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