USE ndbinfo; set GLOBAL query_cache_type=on; set GLOBAL query_cache_size=1355776; reset query cache; flush status; select * from counters; select * from counters; select * from counters; show status like "Qcache_queries_in_cache"; Variable_name Value Qcache_queries_in_cache 0 show status like "Qcache_inserts"; Variable_name Value Qcache_inserts 0 SET GLOBAL query_cache_size=default; SET GLOBAL query_cache_type=default;