根据配置文件创建目录
[root@localhost redis]# mkdir -pv /data/mysql/mysql_3307/{data,logs,tmp} mkdir: created directory `/data/mysql/mysql_3307' mkdir: created directory `/data/mysql/mysql_3307/data' mkdir: created directory `/data/mysql/mysql_3307/logs' mkdir: created directory `/data/mysql/mysql_3307/tmp' [root@localhost redis]# mkdir -pv /data/mysql/mysql_3308/{data,logs,tmp} mkdir: created directory `/data/mysql/mysql_3308' mkdir: created directory `/data/mysql/mysql_3308/data' mkdir: created directory `/data/mysql/mysql_3308/logs' mkdir: created directory `/data/mysql/mysql_3308/tmp'
修改配置文件(注意sock datadir server_id pid port的修改)
[root@localhost redis]# cp /etc/my.cnf /data/mysql/mysql_3307/ [root@localhost redis]# cp /etc/my.cnf /data/mysql/mysql_3308/ [root@localhost redis]# sed -i 's/3376/3307/g' /data/mysql/mysql_3307/my.cnf [root@localhost redis]# sed -i 's/3376/3308/g' /data/mysql/mysql_3308/my.cnf
创建多实例
# ./scripts/mysql_install_db --user=mysql --defaults-file=/data/mysql/mysql_3307/my.cnf --datadir=/data/mysql/mysql_3307/data/
# ./scripts/mysql_install_db --user=mysql --defaults-file=/data/mysql/mysql_3308/my.cnf --datadir=/data/mysql/mysql_3308/data/
多实例启动方式
多实例用一个配置文件可以用mysqld_multi启动
# mysqld_multi start 3307
# mysqld_multi start 3308
mysqld --defaults-file=/data/mysql/mysql_3307/my.cnf &
mysqld --defaults-file=/data/mysql/mysql_3308/my.cnf &
mysqld_safe --defaults-file=/data/mysql/mysql_3307/my.cnf &
mysqld_safe --defaults-file=/data/mysql/mysql_3308/my.cnf &
#mysqld_mulit start 1-3
#mysqld_mulit start 1,3,4,6
# mysql -S /tmp/mysql3307.sock
# mysql -S /tmp/mysql3308.sock
多实例关闭
[root@localhost data]# mysqladmin --defaults-file=/data/mysql/mysql_3307/my.cnf shutdown [1]- Done mysqld --defaults-file=/data/mysql/mysql_3307/my.cnf [root@localhost data]# netstat -nalp | grep 3307
多实例共用一个配置文件可以用下面方法关闭
#mysqladmin -S /tmp/mysql3308.sock shutdown
#mysqladmin -S /tmp/mysql3307.sock shutdown
多实例使用一个配置文件
[mysqld_multi] mysqld = /usr/local/mysql/bin/mysqld_safe mysqladmin = /usr/local/mysql/bin/mysqladmin user = mt_user password = abcd123 [mysqld3307] #tee=/data/mysql/mysql_3307/data/query.log datadir = /data/mysql/mysql_3307/data socket = /tmp/mysql3307.sock tmpdir=/data/mysql/mysql_3307/tmp server-id = 123307 log-bin = /data/mysql/mysql_3307/logs/mysql-bin innodb_data_home_dir = /data/mysql/mysql_3307/data innodb_log_group_home_dir = /data/mysql/mysql_3307/logs [mysqld3308] port = 3308 #tee=/data/mysql/mysql_3308/data/query.log datadir = /data/mysql/mysql_3308/data socket = /tmp/mysql3308.sock tmpdir=/data/mysql/mysql_3308/tmp server-id = 123308 log-bin = /data/mysql/mysql_3308/logs/mysql-bin innodb_data_home_dir = /data/mysql/mysql_3308/data innodb_log_group_home_dir = /data/mysql/mysql_3308/logs
[root@localhost mysql_3307]# pkill mysql [root@localhost mysql_3307]# mysqld_multi start 3307,3308 [root@localhost mysql_3307]# netstat -nalp | grep mysql tcp 0 0 :::3308 :::* LISTEN 9247/mysqld tcp 0 0 :::3376 :::* LISTEN 9231/mysqld unix 2 [ ACC ] STREAM LISTENING 21545 9231/mysqld /tmp/mysql3307.sock unix 2 [ ACC ] STREAM LISTENING 21554 9247/mysqld /tmp/mysql3308.sock
创建关闭数据库用户
(product)root@localhost [(none)]> create user 'mt_user'@'localhost' identified by 'abc123'; Query OK, 0 rows affected (0.00 sec) (product)root@localhost [(none)]> GRANT SHUTDOWN ON *.* TO 'mt_user'@'localhost'; Query OK, 0 rows affected (0.00 sec)
[root@localhost mysql_3307]# /usr/local/mysql/bin/mysqladmin -h localhost -S /tmp/mysql3307.sock -umt_user -pabc123 shutdown Warning: Using a password on the command line interface can be insecure. [root@localhost mysql_3307]# netstat -nalp | grep 3307 [root@localhost mysql_3307]# /usr/local/mysql/bin/mysqladmin -h localhost -S /tmp/mysql3308.sock -umt_user -pabc123 shutdown Warning: Using a password on the command line interface can be insecure. [root@localhost mysql_3307]#