1、安装 pacemaker 相关的软件及可能会用到的软件，两台主机都需要安装
[root@app01 qq-5201351]# yum install nmap-ncat -y [root@app01 qq-5201351]# yum install pcs -y [root@app01 qq-5201351]# yum install resource-agents-sap -y
nmap-ncat 软件包是因为可以提供nc命令，只是方便做一些测试，这个也不是必须的
其中：安装了 pcs 时，也会安装很多依赖，完成后会创建 hacluster 用户
[root@app01 ~]# chage -l hacluster Last password change : Nov 22, 2023 Password expires : never Password inactive : never Account expires : never Minimum number of days between password change : -1 Maximum number of days between password change : -1 Number of days of warning before password expires : -1 [root@app01 ~]#
2、为 hacluster 用户设置密码，两台主机的密码都要设置成一致
[root@app01 ~]# passwd hacluster sV5"sY#932T0*kP6)rF3!qS5@
3、在两台APP上创建： /etc/corosync/corosync.conf 配置文件
totem { version: 2 cluster_name: AppProdCluster transport: knet crypto_cipher: aes256 crypto_hash: sha256 } nodelist { node { ring0_addr: app01 name: app01 nodeid: 1 } node { ring0_addr: app02 name: app02 nodeid: 2 } } quorum { provider: corosync_votequorum two_node: 1 } logging { to_logfile: yes logfile: /var/log/cluster/corosync.log to_syslog: yes timestamp: on }
4、启动pcsd，及加入到开机启动项中
systemctl start pcsd
systemctl enable pcsd
5、先建立认证（一定需要先将两个主机名写到/etc/hosts文件），需要输入两台主机的密码：
pcs host auth app01 app02
6、生成corosync 用到的key文件，corosync-keygen 命令会直接将文件生成到 /etc/corosync/ 目录，需要保证两台主机的key文件一致
[root@app01 tmp]# corosync-keygen Corosync Cluster Engine Authentication key generator. Gathering 2048 bits for key from /dev/urandom. Writing corosync key to /etc/corosync/authkey.
7、重启 pcsd 及 corosync 两个服务
systemctl restart pcsd
systemctl enable pcsd
systemctl restart corosync
systemctl enable corosync
8、最后启动cluster集群
pcs cluster start --all
尊重别人的劳动成果 转载请务必注明出处：https://www.cnblogs.com/5201351/p/17899446.html