mysql5.7安装部署、初始化和创建实例

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

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"

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

groupadd mysql
useradd mysql -g mysql
chown mysql:mysql /usr/local/mysql -R

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 &

mysql> SET PASSWORD = PASSWORD('testpassword'); 
mysql> flush privileges;