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SOLR-11595: optimize SolrIndexSearcher.collectionStatistics

This commit is contained in:
David Smiley 2017-11-14 16:58:49 -05:00
parent d77d54b1a6
commit 3923e9fba3
2 changed files with 12 additions and 1 deletions
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3
solr/CHANGES.txt
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@ -123,6 +123,9 @@ Optimizations
* SOLR-11641: Change `frange` to default to `cost=100` so default behavior is to PostFilter if user specifies * SOLR-11641: Change `frange` to default to `cost=100` so default behavior is to PostFilter if user specifies
`cache=false` (hossman) `cache=false` (hossman)
* SOLR-11595: SolrIndexSearcher.localCollectionStatistics is now faster by leveraging an existing
cached MultiFields. Noticeable when many fields are searched. (David Smiley)
Other Changes Other Changes
---------------------- ----------------------
* SOLR-11478: Solr should remove itself from live_nodes in zk immediately on shutdown. (Cao Manh Dat) * SOLR-11478: Solr should remove itself from live_nodes in zk immediately on shutdown. (Cao Manh Dat)

10
solr/core/src/java/org/apache/solr/search/SolrIndexSearcher.java
View File

@ -367,7 +367,15 @@ public class SolrIndexSearcher extends IndexSearcher implements Closeable, SolrI
} }
public CollectionStatistics localCollectionStatistics(String field) throws IOException { public CollectionStatistics localCollectionStatistics(String field) throws IOException {
return super.collectionStatistics(field); // Could call super.collectionStatistics(field); but we can use a cached MultiTerms
assert field != null;
// SlowAtomicReader has a cache of MultiTerms
Terms terms = getSlowAtomicReader().terms(field);
if (terms == null) {
return null;
}
return new CollectionStatistics(field, reader.maxDoc(),
terms.getDocCount(), terms.getSumTotalTermFreq(), terms.getSumDocFreq());
} }
public boolean isCachingEnabled() { public boolean isCachingEnabled() {