Re: [DISCUSS]Query performance Multiple and possible memory leaks

Posted by litao on Jan 17, 2019; 12:59am
URL: http://apache-carbondata-dev-mailing-list-archive.168.s1.nabble.com/DISCUSS-Query-performance-Multiple-and-possible-memory-leaks-tp73608p73641.html

Do you mean for the same query, even if the memory configured for LRU is big
enough, some of the cached entries for index still get purged?
--yes i think it is.

However, since your query is purely count-star without any conditions, I
suppose the query may not use the index are all, which means the LRU cache
may donot work for your query.
--but by logs we can see the carbonindexmerge file load to LRUCache.



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