I'd like to limit the size of MySQL databases on a per-account basis. Is this possible?
Unfortunately, there’s no native support for MySQL quota limits, however, there is an existing feature request linked below you may vote on in order to let our developers know this is an important feature to our customers:
If you wanted to limit MySQL by resource usage, then you could utilize an application such as MySQL Governor with Cloud Linux:
MySQL Governor tracks CPU and disk IO usage for every user in real-time and throttles MySQL queries by using same-per-user LVE limits.