[jira] [Resolved] (LUCENE-7811) Add concurrent version of SortedSetDocValuesFacetCounts

["Michael McCandless (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LUCENE-7811?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael McCandless resolved LUCENE-7811.
----------------------------------------
    Resolution: Fixed

> Add concurrent version of SortedSetDocValuesFacetCounts
> -------------------------------------------------------
>
>                 Key: LUCENE-7811
>                 URL: https://issues.apache.org/jira/browse/LUCENE-7811
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Michael McCandless
>            Assignee: Michael McCandless
>             Fix For: master (7.0), 6.6
>
>         Attachments: LUCENE-7811.patch
>
>
> Counting up facets should take advantage of concurrent hardware if the index has multiple segments.
> At first I tried to add an optional {{ExecutorService}} argument to the existing single-threaded {{SortedSetDocValuesFacetCounts}} but it was difficult, so I just made a new class.
> I also internally refactored {{SortedSetDocValuesFacetCounts}} to share code between its {{count}} and {{countAll}} private methods, and switched the {{FacetsCollector}} to use {{DocIdSetBuilder}} instead of always using a {{FixedBitSet}}.



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