[jira] [Resolved] (SOLR-7614) Distributed Pivot Facet not thread safe

["Yonik Seeley (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-7614?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yonik Seeley resolved SOLR-7614.
--------------------------------
       Resolution: Fixed
    Fix Version/s: 5.2

> Distributed Pivot Facet not thread safe
> ---------------------------------------
>
>                 Key: SOLR-7614
>                 URL: https://issues.apache.org/jira/browse/SOLR-7614
>             Project: Solr
>          Issue Type: Bug
>            Reporter: Yonik Seeley
>             Fix For: 5.2
>
>         Attachments: SOLR-7614.patch
>
>
> I just happened to notice the following added to FacetComponent:
> {code}
>   /**
>    * Incremented counter used to track the values being refined in a given request.
>    * This counter is used in conjunction with {@link PivotFacet#REFINE_PARAM} to identify
>    * which refinement values are associated with which pivots.
>    */
>   int pivotRefinementCounter = 0;
> {code}
> That counter is incremented for each refinement request for correlation, and then reset to 0 at the end.  This will obviously break for concurrent distributed pivot facet requests.
> pivotRefinementCounter should be moved to per-request storage.



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