[Solved] My website says that it has exceeded daily limits

[drrobin]

As the title says I have either had 100GB or 10,000 CPUs in one day.  I can’t understand this, please provide more information and check my normal usage stats, they are never anywhere near either of these limits.

[KazVee]

Your account was suspended for High Server Load. 10025.30 CPU in 24 hours. The cliff on the graph is when the suspension happened.

If you're not sure what caused the high load, you could check your account error logs to see if the excess load was caused by a stuck or crashed process: https://wiki.helionet.org/tutorials/plesk/view-error-logs 
Another possibility is that bots hammered your site. If you check in your site visitor stats, if you see an unreasonably high number of hits/page views, you could look to block those IP addresses with an .htaccess file to deny their visits. You can check visitor stats inside Plesk > Statistics > Web Statistics > your domain > [View]

I've unsuspended your account, please give it a few minutes to get back up and running.

Please keep an eye on your account load here: https://heliohost.org/dashboard/load/ 

Edited November 28 by KazVee
Added info on checking site stats for bots

[drrobin]

Thanks.

memory and cpus are just going straight back up and I had a quick look through the logs and can’t see anything wrong.  It’s really late here in the UK and I will have to look at it tomorrow.

[KazVee]

Our root admins looked into this further and the load was caused by SFTP idling all day long. To stop you getting suspended overnight, they have added a `killall -u drrobin` every 10 minutes to force your SFTP to close its connection. You may need to refactor your app so that when it needs to upload something, it creates a new connection, because just holding it open all day is causing too much load.

[drrobin]

OK, thanks.  I have killed the FTP connections.  I will try adding them back tomorrow and see which is causing the problem