#查看系统版本

[root@ctos3 ~]# cat /etc/redhat-release CentOS Linux release 7.5.1804 (Core) 

#下载源码包，需要注意的是mysql5.7 编译安装需要boost 库，可以在官网下载含boost的源码包

#提示，下载的时候如果不想进行登录或注册，就点不用，开始下载

#开始源码编译安装

#1.安装相关依赖包

yum install -y gcc gcc-c++ cmake ncurses ncurses-devel bison wget openssl-devel.x86_64

#2.创建用户和组

groupadd  mysqluseradd mysql -s /sbin/nologin -M -g mysql

#3.下载mysql和解压,也可以下载好使用rz(包名lrzsz)上传

mkdir -p /home/demo/tools/cd /home/demo/tools/wget  xf mysql-boost-5.7.29.tar.gz

#4.配置相关参数

[root@ctos3 tools]# cd mysql-5.7.29/[root@ctos3 mysql-5.7.29]# pwd/home/demo/tools/mysql-5.7.29[root@ctos3 mysql-5.7.29]# cmake -DCMAKE_INSTALL_PREFIX=/application/mysql  -DMYSQL_DATADIR=/application/mysql/data -DMYSQL_UNIX_ADDR=/application/mysql/tmp/mysql.sock -DDEFAULT_CHARSET=utf8 -DDEFAULT_COLLATION=utf8_general_ci -DWITH_BOOST=boost

#参数介绍

DCMAKE_INSTALL_PREFIX  #指定MySQL程序的安装目录DMYSQL_DATADIR         #数据文件目录DMYSQL_UNIX_ADDR       #socket文件路径DDEFAULT_CHARSET       #指定服务器默认字符集，默认latin1DDEFAULT_COLLATION     #指定服务器默认的校对规则，默认latin1_general_ci

#5.编译安装

[root@ctos3 mysql-5.7.29]# make -j 2 && make install

#-j参数作用：编译时会占用大量的系统资源，可以通过-j参数指定多个编译命令进行并行编译来提高速度,使用以下命令查看系统CPU核数

[root@ctos3 ~]# cat /proc/cpuinfo | grep processor |wc -l2

#6.创建数据目录和修改权限

[root@ctos3 mysql-5.7.29]# mkdir /application/mysql/data  #存放数据目录

[root@ctos3 mysql-5.7.29]# mkdir /application/mysql/tmp #存放sock目录

[root@ctos3 mysql-5.7.29]# chown -R mysql.mysql /application/mysql/

#7.配置/etc/my.cnf文件

#注意：5.7版本没有模板文件/application/mysql/support-files/my-default.cnf，可根据需要自行添加

[root@ctos3 ~]# cat /etc/my.cnf[mysqld]port = 3306socket = /application/mysql/tmp/mysql.sockuser = mysqlbasedir = /application/mysqldatadir = /application/mysql/datapid-file = /application/mysql/data/mysql.pidsql_mode='ONLY_FULL_GROUP_BY'log_error = /application/mysql/mysql-error.log!includedir /etc/my.cnf.d[client]port = 3306socket = /application/mysql/tmp/mysql.sock

#8.初始化数据库

[root@ctos3 support-files]# /application/mysql/bin/mysqld --initialize-insecure --user=mysql --basedir=/application/mysql --datadir=/application/mysql/data

#9.生成服务启动脚本

#设置环境变量[root@ctos3 support-files]# echo 'export PATH=/application/mysql/bin:$PATH' >> /etc/profile[root@ctos3 support-files]# source /etc/profile[root@ctos3 support-files]# tail -1 /etc/profileexport PATH=/application/mysql/bin:$PATH#生成启动脚本[root@ctos3 ~]# cd /application/mysql/support-files/[root@ctos3 support-files]# lsmagic  mysqld_multi.server  mysql-log-rotate  mysql.server[root@ctos3 support-files]# cp mysql.server /etc/init.d/mysqld#启动服务和设置开机自启[root@ctos3 support-files]# /etc/init.d/mysqld startStarting MySQL. SUCCESS! [root@ctos3 support-files]# chkconfig --add mysqld[root@ctos3 support-files]# chkconfig mysqld on

#10.登录MySQL(没有密码登录)

[root@ctos3 ~]# mysql -uroot -pEnter password: 

#11.查看版本

mysql> select version();+-----------+| version() |+-----------+| 5.7.29    |+-----------+1 row in set (0.00 sec)

#12.设置密码

mysql> update mysql.user set authentication_string=password('guoke123') where user='root';Query OK, 1 row affected, 1 warning (0.01 sec)Rows matched: 1  Changed: 1  Warnings: 1mysql> flush privileges;Query OK, 0 rows affected (0.01 sec)