I came across this today: https://github.com/openstack/nova/blob/master/nova/virt/libvirt/imagecache.py#L50 That was added back in grizzly: https://review.openstack.org/#/c/22777/ With a note in the code that we should default it to true at some point. Is 2+ years long enough for this to change to true? This change predates my involvement in the project so ML it is. -- Thanks, Matt Riedemann