1，先按MySQL5.7安裝好後
mkdir dbdata_3307
chown mysql:mysql -R dbdata_3307
2，./bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/dbdata_3307 -- 1個例項
3，./bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/dbdata_3308 --另一個例項
4，啟動： mysql -uroot -p -S /tmp/mysql3307.sock
mysql -uroot -p -S /tmp/mysql3308.sock
修改My.cnf
[mysqld_multi] mysqld=/usr/local/mysql/bin/mysqld_safe mysqladmin =/usr/local/mysql/bin/mysqladmin user = admin password = 123 [mysqld3307] socket = /tmp/mysql3307.sock port = 3307 pid-file = /usr/local/mysql/dbdata_3307/mysql3307.pid datadir = /usr/local/mysql/dbdata_3307 basedir = /usr/local/mysql user = mysql server-id=3307 [mysqld3308] socket = /tmp/mysql3308.sock port = 3308 pid-file =/usr/local/mysql/dbdata_3308/mysql3308.pid datadir = /usr/local/mysql/dbdata_3308 basedir = /usr/local/mysql user = mysql server-id=3308
啟動： mysqld_multi start 3307
檢視狀態：mysqld_multi report 3307