mysql5.7安装部署、初始化和创建实例---数据库君

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('testpassword'); mysql> flush privileges;

9.创建用户并开放远程登录权限 grant all privileges on *.* to 'newuser'@'%' identified by 'testpassword' with grant option;

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