CentOS7 MySql Galera Cluster 安裝步驟

1，檢查系統是否安裝MySQL，已安裝則需要卸載乾淨 查看 systemctl status mysqld.service 2，關閉防火牆 查看 systemctl stop firewalld.service ； 關閉 systemctl disable firewalld.service；systemctl disable firewalld.service 3，安裝依賴包 yum -y in

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