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https://issues.apache.org/jira/browse/LUCENE-5425?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lei Wang updated LUCENE-5425:
-----------------------------

    Attachment: openbitsetiter.patch

Faster OpenBitSetIterator

> Make creation of FixedBitSet in FacetsCollector overridable
> -----------------------------------------------------------
>
>                 Key: LUCENE-5425
>                 URL: https://issues.apache.org/jira/browse/LUCENE-5425
>             Project: Lucene - Core
>          Issue Type: Improvement
>          Components: modules/facet
>    Affects Versions: 4.6
>            Reporter: John Wang
>            Assignee: Shai Erera
>             Fix For: 5.0, 4.7
>
>         Attachments: LUCENE-5425.patch, facetscollector.patch, 
> facetscollector.patch, fixbitset.patch, openbitsetiter.patch
>
>
> In FacetsCollector, creation of bits in MatchingDocs are allocated per query. 
> For large indexes where maxDocs are large creating a bitset of maxDoc bits 
> will be expensive and would great a lot of garbage.
> Attached patch is to allow for this allocation customizable while maintaining 
> current behavior.



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