Install the packages
# yum install memcached python-memcached
Edit the /etc/sysconfig/memcached file
[root@controller1 ~]# cat /etc/sysconfig/memcached
PORT=”11211”
USER=”memcached”
MAXCONN=”1024”
CACHESIZE=”64”
OPTIONS=”-l 127.0.0.1,::1,controller”
Memcached_servers = controller1:11211,controller2:11211,controller3:11211
PCS Create Memcached
# pcs resource delete memcached –force