mysql8.0 部署、初始化和创建实例

• 2020 年 3 月 29 日
• 筆記

本文指导大家安装mysql8.0 数据库

mysql8.0部署、初始化和创建实例

环境信息： centos 7.4.1708 mysql 8.0.11

1.下载解压缩mysql包

cd /opt/  wget https://cdn.mysql.com//Downloads/MySQL-8.0/mysql-8.0.11-linux-glibc2.12-x86_64.tar.gz  tar xzvf mysql-8.0.11-linux-glibc2.12-x86_64.tar.gz  mv mysql-8.0.11-linux-glibc2.12-x86_64 mysql

2.初始化mysql基础环境信息

vim /etc/profile  PATH=/opt/mysql/bin:/opt/mysql/lib:$PATH  export PATH  export MYSQL_HOME="/opt/mysql"  export ms="/opt/mysql"

3.初始化配置实例配置文件

mkdir -p /opt/mysql/data/mcdb  vi /opt/mysql/data/my.cnf

[client]  port = 3311  socket = /opt/mysql/data/mcdb/mysql.sock  [mysql]  no-auto-rehash  [mysqld]  user = mysql  port = 3311  socket = /opt/mysql/data/mcdb/mysql.sock  basedir = /opt/mysql  datadir = /opt/mysql/data  pid-file = /opt/mysql/data/mcdb/mysql.pid  relay-log = /opt/mysql/data/mcdb/relay-bin  relay-log-info-file = /opt/mysql/data/mcdb/relay-log.info  server-id = 13  [mysqld_safe]  log-error = /opt/mysql/data/mcdb/mysql.err  pid-file = /opt/mysql/data/mcdb/mysql.pid

4.新建用户

groupadd mysql  useradd mysql -g mysql  chown mysql:mysql /opt/mysql -R

5.初始化mysql实例 /opt/mysql/bin/mysqld --initialize --basedir=/opt/mysql --datadir=/opt/mysql/data/mcdb --user=mysql 从返回信息最后一行获得密码，举个栗子： xHGkgc+9ea6/

6.启动该实例mysql

mv /opt/mysql/data/my.cnf /opt/mysql/data/mcdb/my.cnf  /opt/mysql/bin/mysqld_safe --defaults-file=/opt/mysql/data/mcdb/my.cnf --user=mysql --basedir=/opt/mysql --datadir=/opt/mysql/data/mcdb 2>&1 > /dev/null &

7.登录mysql /opt/mysql/bin/mysql -uroot -pxHGkgc+9ea6/ -S /opt/mysql/data/mcdb/mysql.sock

8.设定新密码 set password = 'testpassword';