Re: [libvirt-users] Redhat 7: cgroup CPUACCT controller is not mounted
Thanks Martin to confirm that the issue is due to privilege access. How can I run a domain
as non-root and be able to access the cpu information?
-----Original Message-----
From: Martin Kletzander [mailto:mkletzan@redhat.com]
Sent: Tuesday, February 28, 2017 16:18
To: EL FATHI Youssef OBS/OINIS
Cc: libvirt-users(a)redhat.com
Subject: Re: [libvirt-users] Redhat 7: cgroup CPUACCT controller is not mounted
On Mon, Feb 27, 2017 at 01:44:44PM +0000, youssef.elfathi(a)orange.com wrote:
Hi,
With a non-root user account, I am launching virtual machines and would like to get CPU
stats for each Core (using python API or not) but face the following problem:
- When I issue the command "virsh --readonly cpu-stats MY_DOMAIN" I got the
following error:
error: Failed to retrieve CPU statistics for domain 'MY_DOMAIN'
error: Requested operation is not valid: cgroup CPUACCT controller is
not mounted
Since you are running the domain in session mode (non-root), libvirtd doesn't have the
privileges for creating a mount point for the domain and hence the controller is available
to use. So I guess it's just a matter of the error message being ambiguous.
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