Description of problem: Instack undercloud nova is configured for the default reserved_host_memory_mb=512 which means if there is the exact ironic resources required to deploy the overcloud, the deployment will fail due to the hypervisor memory used data getting 512 added for each node Version-Release number of selected component (if applicable): trunk How reproducible: In Quintupleo, always. Steps to Reproduce: 1. Install undercloud and register ironic nodes 2. In the undercloud, run "nova hypervisor-stats" 3. Actual results: memory_mb_used total is 512 * count Expected results: memory_mb_used=0 Additional info: Previous undercloud templates did this [1], so I assume it is just a matter of setting the right nova::compute puppet config option [1] http://git.openstack.org/cgit/openstack/tripleo-heat-templates/tree/undercloud-vm-ironic-config.yaml#n18
Not sure how this isn't breaking all virt-based environments, but it will be fixed by https://review.gerrithub.io/231005
This bug is against a Version which has reached End of Life. If it's still present in supported release (http://releases.openstack.org), please update Version and reopen.