Hi all, we are using ACS 4.8, on Ubuntu 14.04 (stock version qemu/libvirt - 2.0.0/1.2.2) and we have issues during live migration of "busy" VMs (high RAM change rate), so we plan to introduce additional flag+global parameter in ACS, which will auto converge flag libvirt to enable auto convergence (thanks Mike. T :) )
qemu 1.6+ supports auto convergence, but before 2.5 it's mostly useless (based on docs and my own testing) Since we cant upgrade to Ubuntu 16.04 before ACS 4.9 or 4.10 release, we are forced to play with qemu/libvirt verisons, so I used Ubuntu OpenStack repo for "MITAKA" release, which provides QEMU 2.5 / LIBVIRT 1.3.1 (auto convergence works like charm). Now, we are facing different issues that ACS send command to libvirt, but libvirt basically do some silly things and cant start some VMs at all, etc. Anyone running ACS 4.8 with qemu 2.5+ and libvirt 1.3 , any advice how to proceed (our developers are already debugging things, but this takes time) ? Any info is really appreciated. Thanks ! -- Andrija Panić
