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https://issues.apache.org/jira/browse/LUCENE-5425?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13896200#comment-13896200
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Shai Erera commented on LUCENE-5425:
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Uwe, I added an explicit FixedBitSetIterator and the optimization in
LUCENE-5440. Lei, on LUCENE-5440 I'm moving all the code to use FixedBitSet
instead of OpenBitSet and therefore it will use the new iterator by default.
The intention is to get rid of OpenBitSet and accompanying classes.
> 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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