Starting pacemaker yields "Tunnel connection failed: 504 Gateway Time-out" in Red Hat OpenStack Platform
Issue
Starting pacemaker yields Tunnel connection failed: 504 Gateway Time-out in Red Hat OpenStack Platform
[root@overcloud-controller-1 ~]# pcs cluster start --all
overcloud-controller-2: Unable to connect to overcloud-controller-2 (Tunnel connection failed: 504 Gateway Time-out)
overcloud-controller-1: Unable to connect to overcloud-controller-1 (Tunnel connection failed: 504 Gateway Time-out)
overcloud-controller-0: Unable to connect to overcloud-controller-0 (Tunnel connection failed: 504 Gateway Time-out)
Error: unable to start all nodes
overcloud-controller-2: Unable to connect to overcloud-controller-2 (Tunnel connection failed: 504 Gateway Time-out)
overcloud-controller-1: Unable to connect to overcloud-controller-1 (Tunnel connection failed: 504 Gateway Time-out)
overcloud-controller-0: Unable to connect to overcloud-controller-0 (Tunnel connection failed: 504 Gateway Time-out)
[root@overcloud-controller-1 ~]#
Environment
Red Hat OpenStack Platform 10
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