linux centos 7.3 编译安装mysql5.7

#安装依赖

yum update
yum install -y gcc gcc-c++ make libtool zlib zlib-devel openssl openssl-devel pcre pcre-devel libaio

#下载，解压，重命名

mkdir -p /data/app/
mkdir -p /data/download/
cd /data/download/
wget https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.19-linux-glibc2.12-x86_64.tar.gz
tar -zxvf mysql-5.7.-linux-glibc2.-x86_64.tar.gz -C /data/app/
mv /data/app/mysql-5.7.-linux-glibc2.-x86_64/ /data/app/mysql

#新建用户组和用户

cd /data/app/mysql/
groupadd mysql
useradd mysql -g mysql

#创建目录并授权

mkdir data mysql-files
chmod  mysql-files
chown -R mysql .
chgrp -R mysql .

mkdir -p /var/log/mariadb/
touch /var/log/mariadb/mariadb.log
chown -R mysql:mysql /var/log/mariadb 

chown -R root .
chown -R mysql data mysql-files
chown -R mysql:mysql /data/app/mysql/data
chmod -R  /data/app/mysql/data

#初始化MySQL

bin/mysqld --initialize --user=mysql
#mysql 临时密码
#[注意]root@localhost生成临时密码：kkp_8wQ.59ij,也就是root@localhost:后的字符串

#添加到MySQL 启动脚本到系统服务

cp /data/app/mysql/support-files/mysql.server /etc/init.d/mysqld

#编辑或者修改

vim /etc/init.d/mysqld
basedir=/data/app/mysql
datadir=/data/app/mysql/data

#启动mysql

/etc/init.d/mysqld start

#加入开机启动

chkconfig --add mysqld
chkconfig mysqld on

#映射一个链接到/usr/bin目录下，建立一个链接文件

ln -s /data/app/mysql/bin/mysql /usr/bin

#登陆mysql

mysql -u root -p
错误提示：ERROR  (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)

#解决办法
find / -name mysql.sock
ln -s /var/lib/mysql/mysql.sock /tmp/mysql.sock

#设置root密码

mysql -u root -p
mysql> ALTER USER 'root'@'localhost' identified by 'mima';

mysql> flush privileges; 

mysql> exit;

#开启远程登录

#关闭防火墙

systemctl stop firewalld.service

mysql -u root -h 127.0.0.1 -p
mysql> use mysql;
mysql> update user set host = '%' where user ='root';
mysql> flush privileges;
#或者
mysql> grant all privileges on *.* to 'root'@'%' identified by 'bi**31****28' with grant option;
mysql> flush privileges;

#查看mysql.user表中存在哪些帐户 以及它们的密码是否为空：

SELECT User, Host, HEX(authentication_string) FROM mysql.user;