Tim Underwood created SOLR-12878:
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Summary: FacetFieldProcessorByHashDV is reconstructing FieldInfos
on every instantiation
Key: SOLR-12878
URL: https://issues.apache.org/jira/browse/SOLR-12878
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Components: Facet Module
Affects Versions: 7.5
Reporter: Tim Underwood
The FacetFieldProcessorByHashDV constructor is currently calling:
{noformat}
FieldInfo fieldInfo =
fcontext.searcher.getSlowAtomicReader().getFieldInfos().fieldInfo(sf.getName());
{noformat}
Which is reconstructing FieldInfos each time. Simply switching it to:
{noformat}
FieldInfo fieldInfo = fcontext.searcher.getFieldInfos().fieldInfo(sf.getName());
{noformat}
causes it to use the cached version of FieldInfos in the SolrIndexSearcher.
On my index the FacetFieldProcessorByHashDV is 2-3 times slower than the legacy
facets without this fix.
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