Intermitent issue 'No valid host was found' in nova scheduler when creating overcloud stack in Red Hat OpenStack Platform 10

Solution In Progress - Updated -

Issue

Upon deployment of Red Hat OpenStack Platform 10, intermittend issues like the following show up

2017-03-23 03:37:10Z [lab-osp10-
overcloud.Controller.0.Controller]: CREATE_FAILED  ResourceInError: resources.Controller: Went to status ERROR due to "Message: No valid host was found. There are not enough hosts available., Code: 500"

From time to time, the overcloud deployment fails, and other times in continues just fine.

Environment

Red Hat OpenStack Platform 10
Red Hat OpenStack Platform 11

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