问题
My amazon mysql large RDS instance's CPU utilization is going very high (about 70%) without any genuine reason. How to find which query or process is harming my instance?
thanks
回答1:
The standard method is to examine SHOW PROCESSLIST or SHOW ENGINE InnoDB STATUS to see what's going on.
You are using InnoDB, right?
回答2:
It could also be due to the autoback feature RDS provides. I think AWS RDS does an automatic back up around midnight everyday, you must factor this into your calculations
来源：https://stackoverflow.com/questions/19053980/rds-instance-cpu-utilization