Two nodes:


Both of them installed and started:

yum install pacemaker pcs
passwd hacluster
(Set the same password)
systemctl enable pcsd.service
systemctl start pcsd.service

When authenticating the cluster nodes:

(On node 1)
psc cluster auth
Username: hacluster
Error: Unable to communicate with Authorized

Why can't authenticate node2?


The reason is didn't set right hostname in /etc/hosts. node1 node2

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