关于linux:准备安装环境

--网络设置

vi /etc/hostnamenode1nmcli connection modify enp0s3 ipv4.addresses 192.168.56.84/24 ipv4.gateway 192.168.56.1 ipv4.method manual connection.autoconnect yesvi /etc/hosts192.168.56.84  node1

--敞开防火墙
--禁止firewall开机启动
--确认防火墙为not running状态

systemctl stop firewalld.servicesystemctl disable firewalld.servicefirewall-cmd --statenot running

--敞开selinux

vi /etc/selinux/configSELINUX=disabled

--敞开通明大页

vi /etc/rc.d/rc.local--减少下列内容：if test -f /sys/kernel/mm/transparent_hugepage/enabled; thenecho never > /sys/kernel/mm/transparent_hugepage/enabledfiif test -f /sys/kernel/mm/transparent_hugepage/defrag; thenecho never > /sys/kernel/mm/transparent_hugepage/defragfi

--执行以下命令：

chmod +x /etc/rc.d/rc.localsource /etc/rc.d/rc.localcat /sys/kernel/mm/transparent_hugepage/enabledcat /sys/kernel/mm/transparent_hugepage/defragalways madvise [never] <<--- THP Disabledalways defer defer+madvise madvise [never]

--创立mysql 组及用户

groupadd mysqluseradd -g mysql mysqlecho "mysql" | passwd --stdin mysql

--重启服务器

reboot