pixelbeat commented on a discussion. What version of openstack-nova-compute are you using? (rpm q openstack-nova-compute). The invalid key is probably a side effect of the real problem, the side effect that abrtd can't load the package key for some reason. Is there anything in /var/log/nova/compute.log to indicate the real problem? --- Follow the link below to check it out: http://openstack.redhat.com/forum/discussion/comment/657#Comment_657 Have a great day!