- Plesk for Windows
High load on the server. The operations hang or it takes too long to execute;
Plesk sends email messages with the following content:
CONFIG_TEXT: Server health parameter Services > IIS CPU usage changed its status from "yellow" to "green".
Application Pool of a domain or Plesk cause high CPU usage
Identify the exact domain causing high CPU load
Connect to the server through RDP
Open Internet Information Services (IIS) Manager > server_name under "IIS section" click Worker Processes.**
Depending on the result, apply one of the following:
- If the issue is caused by PleskControlPanel application pool which is exclusively used by Plesk, Сontact Plesk Technical Support, as an additional investigation is required.
- If the issue is caused by application pool of a client's website, inspect website's code for resource consumption.
As a workaround, it's also possible to limit CPU usage for application pool of the domain, following instructions from the KB article: