Christine Poerschke created SOLR-15057:
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Summary: 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
(pull request to follow)
* 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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