mikemccand commented on a change in pull request #815: LUCENE-8213: Introduce
Asynchronous Caching in LRUQueryCache
URL: https://github.com/apache/lucene-solr/pull/815#discussion_r325915208
##########
File path: lucene/core/src/java/org/apache/lucene/search/LRUQueryCache.java
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@@ -832,5 +924,20 @@ public BulkScorer bulkScorer(LeafReaderContext context)
throws IOException {
return new DefaultBulkScorer(new ConstantScoreScorer(this, 0f,
ScoreMode.COMPLETE_NO_SCORES, disi));
}
+ // Perform a cache load asynchronously
+ // NOTE: Potentially, two threads can trigger a load for the same query
concurrently as the check for presence of the query
+ // done upstream and the lock is not he
Review comment:
Hmm this sentence abruptly ended?
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