MySQL8.0初体验

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

软件名称	软件版本	备注
操作系统	rhel6.6_x86_64
数据库	mysql8.0.13

 

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。
四、mysql8.0功能体验