We also agree with Rene’s conclusion, that caching provides the greatest benefit when it is moved closer to the client: With the current limitations noted, the query cache will continue to be supported for the life time of My SQL 5.7.In a previous blog post, we discussed the installation of Proxy SQL and its configuration system.I really don't understand mysql at all, and I have found even the slightest change to the settings has a massive impact on my server performance. Load on server is still very light as it is barely into beta testing.I could really use some advice on settings from the group. Mysql: I really don't have a clue what I am doing with the db. I don't know if these stats are usable as the server load grows?Recently, Morgan has been writing on deprecating some My SQL features and inspired by that while working on My SQL on POWER, I wondered “What is the impact of the My SQL query cache on modern hardware?” We’ve known for over six years (since before we started Drizzle) that the query cache hurt performance.OPEN FILES LIMIT Current open_files_limit = 1561 files The open_files_limit should typically be set to at least 2x-3x that of table_cache if you have heavy My ISAM usage.
Scale Arc’s auto cache invalidation feature uses the transparent No SQL technology by extracting metadata from the query and tagging the cache objects used to associate cache entries with invalidation queries.In a situation like this, the query cache can mask performance problems caused by missing indexes, which makes it helpful for novice users.The query cache has been disabled-by-default since My SQL 5.6 (2013) as it is known to not scale with high-throughput workloads on multi-core machines.This is very valid question most of you are probably asking. Proxy SQL’s biggest advantage is this - it is a piece of software created by DBA’s, for DBA’s.You either already are using some kind of proxy layer (be it HAProxy or Max Scale perhaps), or you have concluded that you don’t really need a proxy layer in your setup. It’s aim is to help with common, sometimes very frustrating problems.