benwtrent commented on code in PR #13306: URL: https://github.com/apache/lucene/pull/13306#discussion_r1581481128
########## 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 agree, but IdentityHashMap is not thread-safe. I may be wrong, but I though if the writing to `IdentityHashMap` was protected (which it is via the write lock, which would block the readers), that means during read it isn't being mutated, and writes are fully synced. Consequently, its perfectly fine to read from multiple threads. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org For additional commands, e-mail: issues-h...@lucene.apache.org