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Posted to commits@lucene.apache.org by jp...@apache.org on 2015/09/09 11:48:04 UTC
svn commit: r1701964 - in /lucene/dev/trunk/lucene: CHANGES.txt
core/src/java/org/apache/lucene/search/IndexSearcher.java
Author: jpountz
Date: Wed Sep 9 09:48:04 2015
New Revision: 1701964
URL: http://svn.apache.org/r1701964
Log:
LUCENE-6784: IndexSearcher's query caching is enabled by default.
Modified:
lucene/dev/trunk/lucene/CHANGES.txt
lucene/dev/trunk/lucene/core/src/java/org/apache/lucene/search/IndexSearcher.java
Modified: lucene/dev/trunk/lucene/CHANGES.txt
URL: http://svn.apache.org/viewvc/lucene/dev/trunk/lucene/CHANGES.txt?rev=1701964&r1=1701963&r2=1701964&view=diff
==============================================================================
--- lucene/dev/trunk/lucene/CHANGES.txt (original)
+++ lucene/dev/trunk/lucene/CHANGES.txt Wed Sep 9 09:48:04 2015
@@ -181,6 +181,9 @@ Changes in Runtime Behavior
removes the collector that threw this exception from the list of sub
collectors to collect. (Adrien Grand)
+* LUCENE-6784: IndexSearcher's query caching is enabled by default. Run
+ indexSearcher.setQueryCache(null) to disable. (Adrien Grand)
+
======================= Lucene 5.3.0 =======================
New Features
Modified: lucene/dev/trunk/lucene/core/src/java/org/apache/lucene/search/IndexSearcher.java
URL: http://svn.apache.org/viewvc/lucene/dev/trunk/lucene/core/src/java/org/apache/lucene/search/IndexSearcher.java?rev=1701964&r1=1701963&r2=1701964&view=diff
==============================================================================
--- lucene/dev/trunk/lucene/core/src/java/org/apache/lucene/search/IndexSearcher.java (original)
+++ lucene/dev/trunk/lucene/core/src/java/org/apache/lucene/search/IndexSearcher.java Wed Sep 9 09:48:04 2015
@@ -125,9 +125,14 @@ public class IndexSearcher {
};
- // disabled by default
- private static QueryCache DEFAULT_QUERY_CACHE = null;
+ private static QueryCache DEFAULT_QUERY_CACHE;
private static QueryCachingPolicy DEFAULT_CACHING_POLICY = new UsageTrackingQueryCachingPolicy();
+ static {
+ final int maxCachedQueries = 1000;
+ // min of 32MB or 5% of the heap size
+ final long maxRamBytesUsed = Math.min(1L << 25, Runtime.getRuntime().maxMemory() / 20);
+ DEFAULT_QUERY_CACHE = new LRUQueryCache(maxCachedQueries, maxRamBytesUsed);
+ }
final IndexReader reader; // package private for testing!