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Posted to dev@lucene.apache.org by "Shai Erera (JIRA)" <ji...@apache.org> on 2013/04/01 06:59:15 UTC

[jira] [Resolved] (LUCENE-4893) Facet counts in FacetsAccumulator.facetArrays are multiplied as many times as FacetsCollector.getFacetResults is called.

     [ https://issues.apache.org/jira/browse/LUCENE-4893?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shai Erera resolved LUCENE-4893.
--------------------------------

       Resolution: Fixed
    Fix Version/s: 4.3
                   5.0
         Assignee: Shai Erera
    Lucene Fields: New,Patch Available  (was: New)

Committed to trunk and 4x. I added defensive code to prevent an app tripping itself, if it called getFacetResults before doing search, without calling reset. setNextReader now clears the cached results.

Thanks crocket for reporting this!
                
> Facet counts in FacetsAccumulator.facetArrays are multiplied as many times as FacetsCollector.getFacetResults is called.
> ------------------------------------------------------------------------------------------------------------------------
>
>                 Key: LUCENE-4893
>                 URL: https://issues.apache.org/jira/browse/LUCENE-4893
>             Project: Lucene - Core
>          Issue Type: Bug
>          Components: modules/facet
>    Affects Versions: 4.2
>            Reporter: crocket
>            Assignee: Shai Erera
>             Fix For: 5.0, 4.3
>
>         Attachments: LUCENE-4893.patch, LUCENE-4893.patch, LUCENE-4893.patch, LUCENE-4893.patch
>
>
> In lucene 4.1, only StandardFacetsAccumulator could be instantiated.
> And as of lucene 4.2, it became possible to instantiate FacetsAccumulator.
> I invoked FacetsCollector.getFacetResults twice, and I saw doubled facet counts.
> If I invoke it three times, I see facet counts multiplied three times.
> It all happens in FacetsAccumulator.accumulate.
> StandardFacetsAccumulator doesn't have this bug since it frees facetArrays whenever StandardFacetsAccumulator.accumulate is called.
> Is it a feature or a bug?

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