RHEL6.6下MySQL8.0安装配置初体验

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MySQL8.0 的官方社区开源版出来有段时间了，而 percona 的 8.0 版本还没有正式对外发布（已发布测试版），一直以来也没安装体验下这个号称质的飞跃的版本，今天正好有些时间就下了安装体验体验。

一、MySQL8.0 下载

下载地址：https://dev.mysql.com/get/Downloads/MySQL-8.0/mysql-8.0.13-linux-glibc2.12-x86_64.tar.xz

二、安装环境

三、MySQL8.0 安装

官方参考：https://dev.mysql.com/doc/refman/8.0/en/binary-installation.html

1. 软件下载

[root@node tools]# wget https://dev.mysql.com/get/Downloads/MySQL-8.0/mysql-8.0.13-linux-glibc2.12-x86_64.tar.xz

2. 依赖包安装

[root@node mysql]# yum search libaio
[root@node mysql]# yum install libaio
3. 用户创建
[root@node mysql]# groupadd mysql
[root@node mysql]# useradd -r -g mysql -s /bin/false mysql

4. 解压缩安装包

[root@node mysql]# cd /usr/local
[root@node mysql]# tar -xvf mysql-8.0.13-linux-glibc2.12-x86_64.tar.xz

5. 规划软件和数据文件目录
[root@node tools]# mv mysql-8.0.13-linux-glibc2.12-x86_64 /usr/local/mysql
[root@node mysql]# cd /usr/local/mysql
[root@node mysql]# mkdir -p /data/mysql/data

6. 修改属主权限
[root@node mysql]# chown -R mysql:mysql /data/mysql/data
[root@node mysql]# chmod -R 750 /data/mysql/data

7. 数据库初始化
[root@node mysql]# bin/mysqld –initialize –user=mysql  –datadir=/data/mysql/data
2018-11-12T02:49:23.293863Z 0 [System] [MY-013169] [Server] /usr/local/mysql/bin/mysqld (mysqld 8.0.13) initializing of server in progress as process 24839
2018-11-12T02:49:26.840424Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: Vxxx1n%Mj7uZ
2018-11-12T02:49:29.671663Z 0 [System] [MY-013170] [Server] /usr/local/mysql/bin/mysqld (mysqld 8.0.13) initializing of server has completed

8.ssl 部署
[root@node mysql]# bin/mysql_ssl_rsa_setup
Generating a 2048 bit RSA private key
…….+++
……………………….+++
writing new private key to ‘ca-key.pem’
—–
Generating a 2048 bit RSA private key
…………………………………….+++
..+++
writing new private key to ‘server-key.pem’
—–
Generating a 2048 bit RSA private key
…………………………………………………………+++
……………….+++
writing new private key to ‘client-key.pem’
—–

9. 启动数据库
[root@node mysql]# bin/mysqld_safe –user=mysql –datadir=/data/mysql/data &
[1] 25195
[root@node mysql]# Logging to ‘/data/mysql/data/node.err’.
2018-11-12T02:51:59.390239Z mysqld_safe Starting mysqld daemon with databases from /data/mysql/data

10. 连接数据库
[root@node mysql]# mysql -uroot -p’Vjk01n%Mj7uZ’  -hlocalhost

mysql> select user,host from mysql.user;
ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.

11. 修改数据库初始密码

mysql> alter user root@’localhost’ identified by ‘xxxx’;
Query OK, 0 rows affected (0.07 sec)

12. 数据库查询
mysql> select user,host from mysql.user;   
+——————+———–+
| user            | host      |
+——————+———–+
| mysql.infoschema | localhost |
| mysql.session    | localhost |
| mysql.sys        | localhost |
| root            | localhost |
+——————+———–+
4 rows in set (0.00 sec)

13.MySQL 启动服务配置
[root@node mysql]# cp -rp support-files/mysql.server  /etc/init.d/mysqld

[root@node data]# chkconfig  –add mysqld
[root@node mysql]# vi /etc/my.cnf

[root@node ~]# vi /root/.bash_profile
PATH=$PATH:$HOME/bin:/usr/local/sysbench/bin:/usr/local/mysql/bin/
[root@node ~]# source ~/.bash_profile

14. 杀掉 MySQL 进程，通过 service 服务重启数据库
[root@node data]# service mysqld start
Starting MySQL………………                          [OK]

至此 MySQL8.0 二进制包数据库安装完毕，开始体验其功能。

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