MySQL5.7 多实例

1，先按MySQL5.7安装好后

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个实例

3，./bin/mysqld  --initialize --user=mysql  --basedir=/usr/local/mysql --datadir=/usr/local/mysql/dbdata_3308   --另一个实例

4，启动：  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

启动： mysqld_multi start 3307

查看状态：mysqld_multi report 3307