mysql usage

[MathieuS]

I've noticed that mysql is the top user of memory on my Nagios XI server. I only have 2,5gb left from the initial 12gb. This can't be normal? Is there something I can do about this?

[lmiltchev]

Are you talking about RAM or a hard disk space?

[MathieuS]

Are you talking about RAM or a hard disk space?

I was talking about RAM but it seemed to be rather a linux issue than a nagios issue

[mguthrie]

Yeah mysql caches available memory even though it's not actually using it all. If you have a system with 512MB of RAM, it'll use about 95%, if you have 4GB, it'll still use up to 95% ; )