[libvirt-users] How can openstack retrieve the CPU usage of a lxc via libvirt?
Daniel P. Berrange
berrange at redhat.com
Tue Dec 6 09:15:28 UTC 2016
On Tue, Dec 06, 2016 at 08:34:22AM +0000, WANG Cheng D wrote:
> Dear all,
>
> I want to have a view of lxc CPU usage in openstack Dashboard. According the Openstack official site , Openstack Ceilometer can poll libvirt daemon to obtain CPU usage of a virtual machine. I tried the command locally on the libvirtd host "virsh -c lxc:/// domjobinfo", I got an error "error: this function is not supported by the connection driver: virDomainGetJobInfo"
virDomainGetJobInfo is for getting information about background jobs
(such as save/restore/migrate), it has nothing todo with CPU usage.
For CPU usage you need virDomainGetCPUStats
Regards,
Daniel
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