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https://issues.apache.org/jira/browse/SOLR-15057?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Christine Poerschke resolved SOLR-15057.
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Fix Version/s: master (9.0)
8.8
Resolution: Fixed
> avoid unnecessary object retention in FacetRangeProcessor
> ---------------------------------------------------------
>
> Key: SOLR-15057
> URL: https://issues.apache.org/jira/browse/SOLR-15057
> Project: Solr
> Issue Type: Task
> Reporter: Christine Poerschke
> Assignee: Christine Poerschke
> Priority: Minor
> Fix For: 8.8, master (9.0)
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> * The (private) {{doSubs}} method is a no-op if there are no sub-facets.
> * The (private) {{intersections}} and {{filters}} arrays are only used by
> the {{doSubs}} method.
> * The (private) {{rangeStats}} method currently always populates the
> {{intersections}} and {{filters}} arrays, even when nothing actually
> subsequently uses them.
> * If {{rangeStats}} only populated the {{intersections}} array when it's
> actually needed then the {{DocSet intersection}} object would remain local in
> scope and hence the garbage collector could collect it earlier.
> [https://github.com/apache/lucene-solr/blob/releases/lucene-solr/8.7.0/solr/core/src/java/org/apache/solr/search/facet/FacetRangeProcessor.java#L531-L555]
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