Instance creation or migration failing with error "no valid host" whereas compute nodes have sufficient resources to host it

Solution Verified - Updated -

Issue

  • Instance creation or migration fails with the message No valid host was found
  • According to the flavor and the scheduler hints, one or more compute nodes should have sufficient resources to host the instance

Environment

  • Red Hat Openstack Platform (RHOSP) 16.0
  • Red Hat Openstack Platform (RHOSP) 16.1

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