linux安装mysql-5.7.28

【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>>

卸载旧版mysql

查看rpm包

rpm -qa|grep mysql

卸载

rpm -e --nodeps *******

查找mysql残留包，有则删除，没有则忽略

find / -name mysql

解压安装包

解压

tar -zxvf mysql-5.7.28-linux-glibc2.12-x86_64.tar.gz

移动并重命名至local文件夹下（可选，任意目录均可）

mv mysql-5.7.28-linux-glibc2.12-x86_64  /usr/local/mysql

创建用户组及用户

groupadd mysql
useradd -r -g mysql mysql

安装MySQL

cd /usr/local/mysql
chown -R mysql:mysql ./

[mysqld]
basedir=/usr/local/mysql
datadir=/usr/local/mysql/data
port=3306
socket=/var/lib/mysql/mysql.sock
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
# Settings user and group are ignored when systemd is used.
# If you need to run mysqld under a different user or group,
# customize your systemd unit file for mariadb according to the
# instructions in http://fedoraproject.org/wiki/Systemd

sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
explicit_defaults_for_timestamp=true

[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

#
# include all files from the config directory
#
!includedir /etc/my.cnf.d

socket所在目录/var/lib/mysql需要创建以及mysql用户权限

安装

cd /usr/local/mysql/bin
 ./mysqld --initialize --user=mysql

生成随机密码

cd /usr/local/mysql
chown -R root:root ./
chown -R mysql:mysql data

启动mysql

cp support-files/mysql.server /etc/init.d/mysql

注册开机启动服务

chkconfig --add mysql
chkconfig --list

启动mysql服务

service mysql start

Starting MySQL. SUCCESS!

ln -s /var/lib/mysql/mysql.sock /tmp/

添加mysql命令快捷访问

ln -s /usr/local/mysql/bin/mysql /usr/bin/

使用初始密码登录mysql服务

mysql -u root -p t:_;csjgo8,I

更新密码

alter user 'root'@'localhost' identified by '**';
flush privileges;

开启远程连接权限

use mysql;
update user set host='%' where user='root';
flush privileges;

PS

my.cnf文件中的socket所在目录/var/lib/mysql需要提前创建并赋予mysql权限，否则会出现无法创建socket文件的错误

Starting MySQL.2020-01-09T02:35:47.595554Z mysqld_safe error: log-error set to '/var/log/mysql/mysql.log', however file don't exists. Create writable for user 'mysql'.
 ERROR! The server quit without updating PID file (/usr/local/mysql/data/VM_0_14_centos.pid).

来源：oschina

链接：https://my.oschina.net/xinyuanKong/blog/3155230

标签

Linux

systemd

glibc

Symbolic

mysql