一. 环境准备:
1. 环境分配:
192.168.188.112 | node2 |
192.168.188.113 | node3 |
192.168.188.114 | node4 |
2. 配置hosts解析,三个节点都要配置:
[root@node2 ~]# cat /etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.188.112 node2
192.168.188.113 node3
192.168.188.114 node4
3. 关闭防火墙和selinux:
[root@node2 ~]# selinuxsystemctl stop firewalld
[root@node2 ~]# systemctl disable firewalld
[root@node2 ~]# sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config
[root@node2 ~]# setenforce 0
4. 设置三个节点时间同步:
[root@node3