卸載centos7默認安裝的MariaDB,因爲和mysql有衝突
#rpm -qa | grep mariamariadb-libs-5.5.52-1.el7.x86_64
#yum remove mariadb-libs -y
下載最新的mysql官方yum源
https://dev.mysql.com/downloads/repo/yum/
安裝:yum localinstall mysql57-community-release-el7-9.noarch.rpm
用yum info命令搜索mysql-community-server,確認詳細的信息
yum info mysql-community-server
最後:yum install mysql-community-server -y
可以看到默認需要依賴的安裝包:
設置開機啓動mysql服務:
systemctl enable mysqld.service
systemctl daemon-reload
啓動mysql服務:
systemctl start mysqld.service
停止:
systemctl stop mysqld.service
查看mysql運行狀態:
systemctl status mysqld.service
配置mysql,重置root密碼,默認生成的密碼在/var/log/mysqld.log,首先以這個密碼登錄mysql來修改root密碼
mysql -uroot -p
如果不修改密碼執行mysql命令,mysql5.7會提示:
ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.
可見mysql的安全性做的越來越高,接下來修改root密碼
ALTER USER 'root'@'localhost' IDENTIFIED BY 'xxxxxxxxxx';
修改mysql編碼,修改/etc/my.cnf配置文件,在[mysqld]下添加編碼配置
character_set_server=utf8
init_connect='SET NAMES utf8'
開啓log日誌,配置my.cnf
log-bin=mysql-bin.log(默認在數據目錄/var/lib/mysql)
server-id=序列號(必須配置)
重啓:systemctl restart mysqld.service