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I checked the kernel and it was indeed customised. It was compiled with CONFIG_FAIR_GROUP_SCHED option and after adding CONFIG_CFS_BANDWIDTH CPU-settings appeared in UI. However, kernel scheduler defaults to deadline as the server has SSD disks so does the cgroups still work as expected if I...

It is a physical server. I have also tested with CentOS 7.2 and CPU limit was not enabled on that either.

I'm trying to set resource usage limits for service plans and noticed that CPU settings are not available but RAM and disk I/O settings are. Server is running CentOS 7.3 and for some reason cpu controller is not supported. Any ideas how to get it enabled? # plesk sbin resctrl --features...

After upgrading from 12.5 to Onyx I noticed possible issue with webmail. If I change the outgoing mail mode from 'send from domain IP address' to 'send from the specified IP address' using some other IP than domain IP, webmail stops working when webserver configuration files gets rebuild what...