OpenNebula

In

src/vmm_mad/remotes/poll_xen_kvm.rb

there is a function:

    def self.get_vm_disk_stats(doms)
        dom_disk_stats = {}
...
        return dom_disk_stats     
    end

However, the "dom_disk_stats" variable is never updated with any disk information which is extracted. This results in no disk information being returned by the poll script.

Additionally, the function makes assumptions about the naming of the disks as being in the form of "disk.3" and extracts a disk_id ("path.split(".")[-1]"). When processing wild VMs, the disks will not be named in this form and this will lead to unexpected results.

Additionally, although the JSON output format for "qemu-img info" is only available in Xen >=4.2, although with earlier versions of Xen the code silently fails earlier and this section is never reached.

Github link to file/line: https://github.com/OpenNebula/one/blob/master/src/vmm_mad/remotes/poll_xen_kvm.rb#L707