Hi!
Le 7 févr. 2018 à 11:34, Reindl Harald <h.reindl@thelounge.net> a écrit :
Am 07.02.2018 um 11:28 schrieb Sergey Vojtovich:
I'm afraid query cache doesn't scale well. Try turning it off
well, the question is why on a read-bound workload because there is no valid reason that it locks reads for other threads
and no remove query-cache like MySQL 8.0 is no solution because when you have a few terrible optimized queries on your server which takes seconds to run query-cache will save your ass while you can (and we did) write known fast queries with "select SQL_NO_CACHE" to get the locking relaxed
You could also take a look at software like https://www.heimdalldata.com which tries to replace the query cache (and much more BTW) HTH, -- Jocelyn Fournier Founder M : +33 6 51 21 54 10 https://www.softizy.com Softizy - At your side to Optimize your PHP / MySQL applications