安装软件MySQL服务软件(2台数据库服务器都要安装)
1.解包软件
[root@mysql11 mysql]# tar -xvf mysql-5.7.17.tar
[root@mysql22 mysql]# tar -xvf mysql-5.7.17.tar
2.]安装软件
[root@mysql11~]# yum -y install mysql-community-*.rpm
[root@mysql22 mysql]#yum -y install mysql-community-*.rpm
挂载LV设备(两台数据库服务器均要操作)
设置开机挂载
[root@mysql11 mysql]# blkid /dev/vg0/lv0
/dev/vg0/lv0:
UUID="5e568992-05c5-442f-88f0-97acf84ae4b3" TYPE="xfs"
[root@mysql11 mysql]# vim /etc/fstab
/dev/vg0/lv0 /var/lib/mysql xfs defaults 0 0
查看挂载信息
[root@mysql11 mysql]# mount -a
[root@mysql11 mysql]# mount | grep lv0
/dev/mapper/vg0-lv0 on /var/lib/mysql type xfs (rw,relatime,attr2,inode64,noquota)
启动服务
启动两台数据库服务器上的mysql服务
[root@mysql11~]# systemctl start mysqld 启动服务
[root@mysql11 ~]# ls /var/lib/mysq 查看是否生成初始文件
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[root@mysql11~]# systemctl enable mysqld 开机自启
[root@mysql11~]# netstat -antulp | grep :3306 查看端口信息
[root@mysql22 mysql]# systemctl start mysqld
[root@mysql22 mysql]# ls /var/lib/mysql
[root@mysql22 mysql]# systemctl enable mysqld
[root@mysql22 mysql]# netstat -antulp | grep :3306
管理员登录
查看初始密码
[root@mysql11~]# grep password /var/log/mysqld.log
2019-09-26T03:23:54.807814Z 1 [Note] A temporary password is generated for root@localhost: Tq,*/saSA4k-
[root@mysql11 ~]# mysql -uroot -p "Tq,*/saSA4k-" 初始密码登录
[root@mysql22 mysql]# grep password /var/log/mysqld.log
2019-09-26T03:24:16.504542Z 1 [Note] A temporary password is generated for root@localhost: s>pte7O,U90w
[root@mysql22 mysql]# mysql -uroot -p"s>pte7O,U90w"
修改登录密码
11上:mysql> alter user root@'localhost' identified by "123qqq...A";
22上:alter user root@'localhost' identified by "123qqq...A";
使用新密码登录
mysql> exit
Bye
[root@mysql11~]# mysql -uroot -p123qqq...A
mysql> show databases ;
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[root@mysql22 mysql]# mysql -uroot -p123qqq...A
mysql> show databases;
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