What parameter are we talking about with "video conference"?

Question

MySQL

https://www.youtube.com/watch?v=ymHWzRtxmqs
from 44:07 it says about the parameter
if anyone is familiar with the configs, tell me what this parameter is, I can't find it in Google
PS I heard something like back lock

Answer 1

Here it is - https://dev.mysql.com/doc/refman/5.7/en/server-sys...