Dear Xlord
Please check if the VM guest has vm-tools installed else the “virsh migrate --live” parameter requirement is not fulfilled else you has to turn off the VM guest and do the offline “virsh migrate” without “--live” options. Hope that helps.
As far as I know (and it definitely worked in CentOS 6 and from CentOS 6 to CentOS 7) no guest tools are needed. But I tried it nevertheless: did not work :(
Live migration with shared storage works fine but in my case I need to do live migrations without shared storage (in order to free running hosts to upgrade their OSes and setup shared storage)
I suspect either that the qemu-kvm binary from qemu-kvm-ev-2.6.0-28 is missing this feature or it is called without a needed option. Comparing running qemu-kvm processes on CentOS 6 and CentOS 7 I can see that those on CentOS 6 have -enable-kvm on the command lime but those on CentOS 7 have not.
How can the qemu-kvm binary be checked to see if the feature is enabled?
Thanks, Valentin