A website on a shared hosting can consume all system resources and
disrupt the performance of other websites. This issue is known as the
“noisy neighbor problem”.
Plesk Cgroups Manager is an extension that helps you address this
issue by managing the consumption of the CPU, RAM, disk read and write
bandwidth.
For each system resource Cgroups Manager allows you to:
- Set a maximum amount (limit) on the consumed resource.
- Monitor the amount of the consumed resource and send email
notifications when it exceeds a certain level (threshold).
You can configure Cgroups Manager and set the limit on the consumed
resource on the following levels:
- For a service plan, affecting all subscriptions under the plan.
- For a single subscription.
Note: To use Cgroups on a Plesk server with a custom kernel, you need to
specify a number of parameters when compiling the
kernel.