root@mynode1:~# pmgcm status
NAME(CID)--------------IPADDRESS----ROLE-STATE---------UPTIME---LOAD----MEM---DISK
mynode1(1)          192.168.31.213   master A    3 days 13:29   0.00    90%    25%
mynode2(2)          192.168.31.212   node   A    2 days 20:53   0.08    86%    25%

pmgcm delete 2

To remove the cluster configuration from the removed node, login to it and delete the config file.

rm /etc/pmg/cluster.conf

Reboot after removal.

systemctl reboot