centos7安装mysql5.6.40_centos7 mysql5.6下载

0.准备工作

#安装wget
yum -y install wget vim bash-completion
 
#安装cmake、gcc、gcc-c++等
yum -y install gcc gcc-c++ cmake ncurses-devel autoconf perl perl-devel

1.下载mysql5.6.40

wget https://dev.mysql.com/get/Downloads/MySQL-5.6/mysql-5.6.40.tar.gz

2.创建mysql安装目录以及数据存放目录

mkdir -p /usr/local/mysql/data

3.解压缩文件到当前文件夹及安装

#解压命令
tar -zxvf mysql-5.6.40.tar.gz
 
#进入解压后的文件夹
cd mysql-5.6.40
 
#编译
cmake . -DCMAKE_INSTALL_PREFIX=/usr/local/mysql \
-DINSTALL_DATADIR=/usr/local/mysql/data \
-DDEFAULT_CHARSET=utf8 \
-DDEFAULT_COLLATION=utf8_general_ci \
-DEXTRA_CHARSETS=all \
-DENABLED_LOCAL_INFILE=1
 
#安装
make && make install

4.将mysql的启动服务添加到系统服务中

cd /usr/local/mysql
 
cp support-files/my-default.cnf /etc/my.cnf

5.创建基础表

cd /usr/local/mysql
 
./scripts/mysql_install_db --user=mysql

6.配置环境变量

vim /etc/profile
 
export MYSQL_HOME="/usr/local/mysql"
export PATH="$PATH:$MYSQL_HOME/bin"
 
source /etc/profile

7.配置my.cnf

[root@localhost ~]# cat /etc/my.cnf
[mysqld]
basedir = /usr/local/mysql
datadir = /usr/local/mysql/data
port = 3306
# server_id = .....
socket = /tmp/mysql.sock
 
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES 
[mysql]
# 设置mysql客户端默认字符集
default-character-set=utf8mb4
socket=/var/lib/mysql/mysql.sock
[mysqld]
skip-name-resolve
#设置3306端口
port = 3306
socket=/var/lib/mysql/mysql.sock
# 设置mysql的安装目录
basedir=/usr/local/mysql
# 设置mysql数据库的数据的存放目录
datadir=/usr/local/mysql/data
# 允许最大连接数
max_connections=200
# 服务端使用的字符集及字符校验方式
character_set_server=utf8mb4
collation_server=utf8mb4_general_ci
# 创建新表时将使用的默认存储引擎
default-storage-engine=INNODB
lower_case_table_name=1
max_allowed_packet=16M

8.将mysql启动文件添加到系统启动文件中

cd /usr/local/mysql/
cp support-files/mysql.server /etc/init.d/mysql

9.启动mysql服务及设置开机自启

#启动mysql服务
service mysql start
 
#重启mysql服务
service mysql restart
 
#停止mysql服务
service mysql stop
 
#将服务添加到开机启动指令管理的服务列表中
chkconfig --add mysql
 
#开机自启
chkconfig mysql on

启动报错：

chown -R mysql:mysql /var/lib/mysql

10.设置root密码

mysqladmin -u root password

11.开启远程访问

#防火墙关闭或开启3306端口
#0.0 禁止防火墙开机自启
systemctl disable firewalld
#0.1 关闭防火墙
systemctl stop firewalld
 
#1.0 开启端口3306
firewall-cmd --zone=public --add-port=3306/tcp --permanent
#1.1 重启防火墙
firewall-cmd --reload
#1.2 查看已经开放的端口
firewall-cmd --list-ports
 
 
#开启远程访问
#2.0 创建一个可远程访问的root用户
GRANT ALL PRIVILEGES ON *.* TO root@"%" IDENTIFIED BY "root";
#2.1 指定远程登录root用户时使用的密码
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '远程登录root用户的密码' WITH GRANT OPTION;
#2.2 刷新
flush PRIVILEGES;