mysql5.7的安装

yum -y install gcc gcc-c++ ncurses ncurses-devel cmake bison

 wget https://sourceforge.net/projects/boost/files/boost/1.59.0/boost_1_59_0.tar.gz

tar -zxvf boost_1_59_0.tar.gz

mv boost_1_59_0 /usr/local/boost

tar -xf mysql-5.7.17.tar.gz –C /usr/src/

groupadd -r mysql && useradd -r -g mysql -s /sbin/nologin -M mysql

mkdir -pv /data/mysql

cd /usr/src/mysql-5.7.17

cmake -DCMAKE_INSTALL_PREFIX=/usr/local/mysql -DMYSQL_DATADIR=/data/mysql -DSYSCONFDIR=/etc -DWITH_MYISAM_STORAGE_ENGINE=1 -DWITH_INNOBASE_STORAGE_ENGINE=1 -DWITH_MEMORY_STORAGE_ENGINE=1 -DWITH_READLINE=1 -DMYSQL_UNIX_ADDR=/data/mysql/mysqld.sock -DENABLED_LOCAL_INFILE=1 -DWITH_PARTITION_STORAGE_ENGINE=1 -DWITH_BOOST=/usr/local/boost -DMYSQL_USER=mysql -DEXTRA_CHARSETS=all -DDEFAULT_CHARSET=utf8 -DDEFAULT_COLLATION=utf8_general_ci

make 

make install #编译安装

chown -R mysql:mysql /usr/local/mysql

chown -R mysql:mysql /data

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

chmod +x /etc/init.d/mysqld

ln -s /usr/local/mysql/bin/* /usr/local/bin/

chkconfig --add mysqld

chkconfig mysqld on

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

初始化

/usr/local/mysql/bin/mysqld  --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql(如果这里报错，就指定为--datadir=/usr/local/mysql/data)  

--initialize为随机生成mysql密码，注意初始化最后一行是root用户密码(例如root@localhost: ,5j1Qj_LLAek)

/etc/init.d/mysqld start

mysql5.7以上密码重置方法

vim /etc/my.cnf 加入一行mysqld--skip-grant-tables

mysql 登录 use mysql;

update user set authentication_string=password("new_pass") where user="root";

flush privileges;

如果报错ERROR 1820 (HY000): You must reset your password using ALTER USER statement；

SET PASSWORD = PASSWORD('123456');

如果出现ERROR 1819 (HY000): Your password does not satisfy the current policy requirements；

set global validate_password_policy=0; set global validate_password_mixed_case_count=2;（取消密码强度）

SET PASSWORD = PASSWORD('123456');

Mysql5.7.17开启远程连接：

mysql -uroot –p

use mysql;

GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'password' WITH GRANT OPTION;

flush privileges;

select host,user from user;(查看所有用户)