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主配置文件：

[root@sun01 ~]# more /etc/my.cnf

[mysqld]

datadir=/var/lib/mysql

socket=/var/lib/mysql/mysql.sock

user=mysql

# Disabling symbolic-links is recommended to prevent assorted security risks

symbolic-links=0

?

log-bin=mysqlbin

server-id = 1 #主机标示，整数

read-only =0 #主机，读写都可以

binlog-do-db =testdb01 #需要备份数据，多个写多行

binlog-ignore-db =mysql #不需要备份的数据库，多个写多行

?

[mysqld_safe]

log-error=/var/log/mysqld.log

pid-file=/var/run/mysqld/mysqld.pid

?

?

从配置文件：

[root@sun02 ~]# more /etc/my.cnf

[mysqld]

datadir=/var/lib/mysql

socket=/var/lib/mysql/mysql.sock

user=mysql

# Disabling symbolic-links is recommended to prevent assorted security risks

symbolic-links=0

?

log-bin=mysqlbin

?

server-id = 2

log_slave_updates=1

master-host = 10.0.0.8

master-user = mysqlbak

master-pass = abc123!

master-port = 3306

master-connect-retry=60 #如果从服务器发现主服务器断掉，重新连接的时>间差(秒)

replicate-do-db =testdb01 #只复制某个库

replicate-ignore-db=mysql #不复制某个库

?

?

?

?

?

?

[mysqld_safe]

log-error=/var/log/mysqld.log

pid-file=/var/run/mysqld/mysqld.pid

?

从从配置文件：

[root@sun03 ~]$ more /etc/my.cnf

[mysqld]

datadir=/var/lib/mysql

socket=/var/lib/mysql/mysql.sock

user=mysql

# Disabling symbolic-links is recommended to prevent assorted security risks

symbolic-links=0

?

log-bin=mysqlbin

?

server-id = 3

master-host = 10.0.0.9

master-user = mysqlbak02

master-pass = abc123!

master-port = 3306

master-connect-retry=60 #如果从服务器发现主服务器断掉，重新连接的时>间差(秒)

replicate-do-db =testdb01 #只复制某个库

replicate-ignore-db=mysql #不复制某个库

?

?

?

[mysqld_safe]

log-error=/var/log/mysqld.log

pid-file=/var/run/mysqld/mysqld.pid

MySQL主主、主从、从从配置文件

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原文地址：http://www.cnblogs.com/fayong/p/5238060.html