RHEL-OSP controllers are unexpectedly rebooted or fenced when using High Availability with DHCP addresses

Solution Verified - Updated -


  • HA Controller nodes on my RHEL-OSP deployment are getting randomly fenced by pacemaker. How can I make sure that I have configured my cluster properly to avoid problems like this?
  • The controller nodes in my RHEL-OSP cluster are occasionally fenced.


  • Red Hat Enterprise Linux Openstack Platform (RHEL-OSP)
  • Red Hat Enterprise Linux with the High Availability Add On
    • Providing High Availability for the RHEL-OSP Controllers
  • RHEL-OSP Controllers configured to obtain addresses via DHCP on the network used for cluster communication

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