Controller failing to authenticate and join the cluster during FFU

Solution Unverified - Updated -


  • When doing a fast forward upgrade from RHOSP 13 to RHOSP 16.2.1, the overcloud update process would fail showing an error that indicates that one of the controllers is unable to authenticate and join the pacemaker cluster


  • Red Hat OpenStack Platform (RHOSP) 16.x
  • Fast Forward Upgrade (FFU) from RHOSP 13

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.

Current Customers and Partners

Log in for full access

Log In

New to Red Hat?

Learn more about Red Hat subscriptions

Using a Red Hat product through a public cloud?

How to access this content