很简单的流程
环境信息： centos 7.2 mysql 5.7.21
1.下载解压缩mysql包
cd /usr/local/
wget https://cdn.mysql.com//Downloads/MySQL-5.7/mysql-5.7.21-linux-glibc2.12-x86_64.tar.gz
tar xzvf mysql-5.7.21-linux-glibc2.12-x86_64.tar.gz
mv mysql-5.7.21-linux-glibc2.12-x86_64 mysql
2.初始化mysql基础环境信息
vim /etc/profile
PATH=/usr/local/mysql/bin:/usr/local/mysql/lib:$PATH
export PATH
export MYSQL_HOME="/usr/local/mysql"
export ms="/usr/local/mysql"
3.初始化配置实例配置文件
mkdir -p /usr/local/mysql/data/mcdb
vi /usr/local/mysql/data/my.cnf
[client]
port = 3310
socket = /usr/local/mysql/data/mcdb/mysql.sock
[mysql]
no-auto-rehash
[mysqld]
user = mysql
port = 3310
socket = /usr/local/mysql/data/mcdb/mysql.sock
basedir = /usr/local/mysql
datadir = /usr/local/mysql/data
pid-file = /usr/local/mysql/data/mcdb/mysql.pid
relay-log = /usr/local/mysql/data/mcdb/relay-bin
relay-log-info-file = /usr/local/mysql/data/mcdb/relay-log.info
server-id = 12
[mysqld_safe]
log-error = /usr/local/mysql/data/mcdb/mysql.err
pid-file = /usr/local/mysql/data/mcdb/mysql.pid
4.新建用户
groupadd mysql
useradd mysql -g mysql
chown mysql:mysql /usr/local/mysql -R
5.初始化mysql实例
mysqld --initialize --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data/mcdb --user=mysql
从返回信息最后一行获得密码，举个栗子：
yUlta1lw*uwF
6.移动配置文件到实例目录，启动该实例mysql
mv /usr/local/mysql/data/my.cnf /usr/local/mysql/data/mcdb/my.cnf
mysqld_safe --defaults-file=/usr/local/mysql/data/mcdb/my.cnf --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data/mcdb &
7.登录mysql
mysql -uroot -pyUlta1lw*uwF -S /usr/local/mysql/data/mcdb/mysql.sock
8.设定密码
mysql> SET PASSWORD = PASSWORD('hello2018');
mysql> flush privileges;
9.创建用户并开放远程登录权限
grant all privileges on *.* to 'bodie'@'%' identified by 'happybirthday' with grant option;
