Hi, I think that this variable is useful for me cfg.IntOpt("reboot_timeout", default=0, help="Automatically hard reboot an instance if it has been " "stuck in a rebooting state longer than N seconds. " "Set to 0 to disable."), cfg.IntOpt("instance_build_timeout", but it seems that Eli is right: lbvirt driver doesn't implement this function def poll_rebooting_instances(self, timeout, instances): pass BTW I'm developing a feature: booting from network. In my scenario sometimes the the booting instance pauses because the boot source ( PXE) cannot answer on time. Look at 6.4. Installing guest virtual machines with PXE https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6-Beta/html-single/Virtualization_Host_Configuration_and_Guest_Installation_Guide/index.html I'll investigate on reboot_timeout and I'll inform you but thanks for the tips BR Angelo -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20140923/2f282ee4/attachment.html>