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https://issues.apache.org/jira/browse/LUCENE-2128?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Israel Tsadok updated LUCENE-2128:
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Attachment: LUCENE-2128.patch
I extracted step 3 of createWeights into its own method, and added an
overriding method on ParallelMultiSearcher.
This is untested code, sorry.
> Further parallelizaton of ParallelMultiSearcher
> -----------------------------------------------
>
> Key: LUCENE-2128
> URL: https://issues.apache.org/jira/browse/LUCENE-2128
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Search
> Affects Versions: 3.0
> Reporter: Israel Tsadok
> Priority: Minor
> Attachments: LUCENE-2128.patch
>
>
> When calling {{search(Query, Filter, int)}} on a ParallelMultiSearcher, the
> {{createWeights}} function of MultiSearcher is called, and sequentially calls
> {{docFreqs()}} on every sub-searcher. This can take a significant amount of
> time when there are lots of remote sub-searchers.
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