Re: [PR] Performance improvements to use read lock to access LRUQueryCache [lucene]

["boicehuang (via GitHub)" <gi...@apache.org>]

boicehuang commented on code in PR #13306:
URL: https://github.com/apache/lucene/pull/13306#discussion_r1582091772


##########
lucene/core/src/java/org/apache/lucene/search/LRUQueryCache.java:
##########
@@ -265,7 +269,6 @@ boolean requiresEviction() {
   }
 
   CacheAndCount get(Query key, IndexReader.CacheHelper cacheHelper) {
-    assert lock.isHeldByCurrentThread();
     assert key instanceof BoostQuery == false;
     assert key instanceof ConstantScoreQuery == false;
     final IndexReader.CacheKey readerKey = cacheHelper.getKey();

Review Comment:
   I think we still need `IdentityHashMap` to clear the cache of expired queries. 
   



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