If you are primarily interested in collecting statistics, then you might want to take a look at installing Host sFlow agents on your hypervisors - Xen, Hyper-V and KVM are supported: http://host-sflow.sourceforge.net/ The Host sFlow agents export a superset of the metrics you would get by polling with libvirt, and moving to a push model greatly increases scaleability of the monitoring system: http://blog.sflow.com/2012/08/push-vs-pull.html You can collect the stats using tools like Ganglia and Graphite: http://blog.sflow.com/2012/01/using-ganglia-to-monitor-virtual.html http://blog.sflow.com/2012/01/graphite.html On platforms including Open vSwitch, or on Hyper-V, the Host sFlow agent can also provide detailed visibility into inter-VM traffic by configuring the vSwitch to export standard sFlow metrics: http://blog.sflow.com/2010/10/sflowtrend-adds-server-performance.html http://blog.sflow.com/2012/03/windows-server-8-beta.html The sFlow metrics from the vSwitches are identical to those you would get from most vendor's physical switches, giving you end-to-end visibility: http://blog.sflow.com/2012/09/vendor-support.html On Thu, Feb 14, 2013 at 3:42 AM, Parakkal, Navin S <navin.parakkal@xxxxxx> wrote: > Hi, > Is this not supported for Xen ? I get something like the below for Xen+ssh . > > libvir: error : this function is not supported by the connection driver: virNodeGetCPUStats > libvir: error : this function is not supported by the connection driver: virNodeGetMemoryStats > > Regards, > Navin > > -----Original Message----- > From: Eric Blake [mailto:eblake@xxxxxxxxxx] > Sent: Wednesday, February 13, 2013 7:17 PM > To: Parakkal, Navin S > Cc: libvir-list@xxxxxxxxxx; libvirt-users@xxxxxxxxxx > Subject: Re: Host information from libvirt KVM/Xen > > [no need to mail both libvir-list and libvirt-users; the former is more for development efforts, and since this is a usage question, it is sufficient to mail just libvirt-users] > > On 02/13/2013 12:50 AM, Parakkal, Navin S wrote: >> Hi, >> I'm able to get the CPU utilization metrics from libvirt for the guests (VM's) remotely . Is it possible to get the Host Cpu stat's through libvirt ? >> I didn't find any information regarding the host cpu cycles and memory utilization to collect them remotely. Libvirt is installed on all the hosts. > > You want to use the virNodeGetCPUStats() and virNodeGetMemoryStats() APIs. In virsh, these are wrapped under 'nodecpustats' and 'nodememstats'. > > -- > Eric Blake eblake redhat com +1-919-301-3266 > Libvirt virtualization library http://libvirt.org > > > _______________________________________________ > libvirt-users mailing list > libvirt-users@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/libvirt-users _______________________________________________ libvirt-users mailing list libvirt-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvirt-users
