在同一个服务器上面安装多个MySQL服务，甚至是安装多个不同版本（比如5.7和5.7、5.7和8.0.12），关键在于区分安装目录、数据目录和使用端口等。

可以下面步骤

• 安装MySQL1

wget https://mirrors.163.com/mysql/Downloads/MySQL-5.7/mysql-5.7.22-macos10.13-x86_64.tar.gz

tar -xzvf mysql-5.7.22-macos10.13-x86_64.tar.gz

mv mysql-5.7.22-macos10.13-x86_64 ../mysql5.7.22

cd ../mysql5.7.22/

mkdir data

cd data

mkdir binlog data innodb tmp

cd ../

vi my5.cnf

bin/mysqld --defaults-file=/Users/liwenjie01/mysql5.7.22/my5.cnf --initialize-insecure --user=liwenjie01 --basedir=/Users/liwenjie01/mysql5.7.22 --datadir=/Users/liwenjie01/mysql5.7.22/data/data

bin/mysqld_safe --defaults-file=/Users/liwenjie01/mysql5.7.22/my5.cnf --user=liwenjie01 &

bin/mysql -S /Users/liwenjie01/mysql5.7.22/data/mysql5.sock -uroot -p

create user mysql@"%" identified by "mysql";

grant all privileges on *.* to mysql@"%" with grant option;

flush privileges;

bin/mysql -S /Users/liwenjie01/mysql5.7.22/data/mysql5.sock -umysql -pmysql

• 第二个MySQL服务

安装第二个MySQL步骤和第一个几乎一样：

wget https://mirrors.163.com/mysql/Downloads/MySQL-5.7/mysql-5.7.22-macos10.13-x86_64.tar.gz

tar -xzvf mysql-5.7.22-macos10.13-x86_64.tar.gz

mv mysql-5.7.22-macos10.13-x86_64 ../mysql5.7.22_2

cd ../mysql5.7.22_2/

mkdir data

cd data

mkdir binlog data innodb tmp

cd ../

vi my5.cnf

bin/mysqld --defaults-file=/Users/liwenjie01/mysql5.7.22_2/my5.cnf --initialize-insecure --user=liwenjie01 --basedir=/Users/liwenjie01/mysql5.7.22_2 --datadir=/Users/liwenjie01/mysql5.7.22_2/data/data

bin/mysqld_safe --defaults-file=/Users/liwenjie01/mysql5.7.22_2/my5.cnf --user=liwenjie01 &

bin/mysql -S /Users/liwenjie01/mysql5.7.22_2/data/mysql5.sock -uroot -p

create user mysql@"%" identified by "mysql";

grant all privileges on *.* to mysql@"%" with grant option;

flush privileges;

bin/mysql -S /Users/liwenjie01/mysql5.7.22_2/data/mysql5.sock -umysql -pmysql