mkdir /data
mkdir /data/3306
mkdir /data/3307
mkdir /data/3307/data
mkdir /data/3306/data
# vim /data/3306/my.cnf
[client]
port = 3306
socket = /data/3306/mysql.sock
[mysql]
[mysqld]
user = mysql
port = 3306
socket = /data/3306/mysql.sock
basedir = /opt/mysql/
datadir = /data/3306/data
pid-file = /data/3306/mysql.pid
relay-log = /data/3306/relay-bin
relay-log-info-file = /data/3306/relay-log.info
server-id = 3306
[mysqld_safe]
log-error=/data/3306/mysql_3306.err
pid-file = /data/3306/mysql.pid
# vim /data/3307/my.cnf
[client]
port = 3307
socket = /data/3307/mysql.sock
[mysql]
[mysqld]
user = mysql
port = 3307
socket = /data/3307/mysql.sock
basedir = /opt/mysql/
datadir = /data/3307/data
pid-file = /data/3307/mysql.pid
relay-log = /data/3307/relay-bin
relay-log-info-file = /data/3307/relay-log.info
server-id = 3307
[mysqld_safe]
log-error=/data/3307/mysql_3307.err
pid-file = /data/3307/mysql.pid
初始化数据库：
/opt/mysql/scripts/mysql_install_db --basedir=/opt/mysql --datadir=/data/3306/data/ --user=mysql
/opt/mysql/scripts/mysql_install_db --basedir=/opt/mysql --datadir=/data/3307/data/ --user=mysql
chown mysql. /data/* -R
启动数据库：
/opt/mysql/bin/mysqld_safe --defaults-file=/data/3307/my.cnf &
/opt/mysql/bin/mysqld_safe --defaults-file=/data/3306/my.cnf &
netstat -tnulp
ps -ef | grep mysql
连接mysql
mysql --socket=/data/3306/mysql.sock
mysql --socket=/data/3307/mysql.sock
关闭数据库
mysqladmin --socket=/data/3306/mysql.sock shutdown
mysqladmin --socket=/data/3307/mysql.sock shutdown
设置密码：
# mysqladmin --socket=/data/3307/mysql.sock -u root password "3307"
# mysqladmin --socket=/data/3306/mysql.sock -u root password "3306"
主从复制：
master：
server-id = 3306
log-bin = /data/3306/mysql3306-bin
slave：
server-id = 3307
重启数据库：
# mysqladmin --socket=/data/3307/mysql.sock -u root -p"3307" shutdown
# mysqladmin --socket=/data/3306/mysql.sock -u root -p"3306" shutdown
# /opt/mysql/bin/mysqld_safe --defaults-file=/data/3307/my.cnf &
# /opt/mysql/bin/mysqld_safe --defaults-file=/data/3306/my.cnf &
登录数据库检查：
# mysql --socket=/data/3306/mysql.sock -p"3306"
mysql> show variables like ‘server_id‘;
mysql> show variables like ‘log_bin‘;
mysql> grant replication slave on *.* to ‘rep‘@‘%‘ identified by "rep";
mysql> flush privileges;
mysql> flush tables with read lock;
# mysqldump -uroot -p"3306" --socket=/data/3306/mysql.sock --events -A -B |gzip >/server/backup/mysql_3306_bak.$(date +%F).sql.gz
# mysqldump -uroot -p"3306" --socket=/data/3306/mysql.sock |gzip >/server/backup/mysql_3306_bak.$(date +%F).sql.gz
mysql> flush unlock;
[[email protected] ~]# mysql --socket=/data/3307/mysql.sock -p"3307" -uroot << EOF
> change master to
> master_host=‘192.168.1.212‘,
> master_port=3306,
> master_user=‘rep‘,
> master_password=‘rep‘,
> master_log_file=‘mysql3306-bin.000001‘,
> master_log_pos=471;
> EOF
[[email protected] ~]#
[[email protected] data]# mysql --socket=/data/3307/mysql.sock -p"3307" -uroot -e "start slave;"
[[email protected] data]# mysql --socket=/data/3307/mysql.sock -p"3307" -uroot -e "show slave status\G;"
# mysql --socket=/data/3307/mysql.sock -p"3307" -uroot -e "show slave status\G;"|egrep "Slave_IO_Running|Slave_SQL_Running"
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Slave_SQL_Running_State: Slave has read all relay log; waiting for the slave I/O thread to update it
[[email protected] data]#