MySQL thread status: Waiting for query cache lock. Waiting for query cache lock is a connection status specific to MySQL 5.5 or newer...
Get Started for FREE
Sign up with Facebook Sign up with X
I don't have a Facebook or a X account
Your new post is loading...
|
|
Beware of this new feature in MySQL 5.5 or newer. We've learn the hard way, that it can be a killer on your performance at some point in a high concurrent query environnement. When you start to see some logs with : "Waiting for query cache lock", it may be time for disable it totaly !