[libvirt-users] How can openstack retrieve the CPU usage of a lxc via libvirt?
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" I am not sure if Openstack Ceilometer can retrieve the CPU usage of a linux container, if it can, which virsh command or API should be used to this? Thank you for your response in advance. Cheng
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 -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://entangle-photo.org -o- http://search.cpan.org/~danberr/ :|
participants (2)
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Daniel P. Berrange -
WANG Cheng D