Nova instance provision fails with host is not mapped to any cell in Red Hat OpenStack Platform

Solution Verified - Updated -

Issue

  • Getting an error when provisioning instances in OpenStack
  • Nova has an error mapping to cells
Error: Failed to perform requested operation on instance "vm", the instance has an error status: Please try again later [Error: Host '<hostname>' is not mapped to any cell].

The logs show:

2017-11-23 13:02:08.867 647481 WARNING nova.scheduler.utils [req-7b0833f5-289d-4dd6-8b58-81f0d2142747 827fdd855ba9449fa35f1a9924891196 91958b6284644ea8badea38e2baca21c - - -] Failed to compute_task_build_instances: Host '<hostname>' is not mapped to any cell

Environment

  • Red Hat OpenStack Platform 11
  • Red Hat OpenStack Platform 12

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