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mysql1 : 192.168.6.4    //master

mysql2 : 192.168.6.5    //slave

安装步骤

1. 分别在两台机器上安装mysql-server

shell > apt-get install mysql-server

2.修改 mysql1 master 的配置文件

vim /etc/mysql/my.cnf

找到 bind-address = 127.0.0.1

改为 bind-address = 0.0.0.0

找到

＃server-id               = 1

＃log_bin                 = /var/log/mysql/mysql-bin.log

去掉 注释符号

server-id               = 1

log_bin                 = /var/log/mysql/mysql-bin.log

default-character-set   = utf8     #新加上的为了保持编码一至防止出错

3.改好后保存退出，然后建立一个slave服务器的用户账号

root@msyql1:/# mysql -uroot -p

mysql> grant replication slave,replication client on *.* to ludy@'192.168.6.5' identified by 'ypmwbg';

mysql > grant replication slave on *.* to ludy@192.168.6.5 identified by 'ypmwbg';     //给予权限

到这里要注意了，我的两台数据库都是空的.

重启mysql服务

4.修改 mysql2 服务器slave的 my.cnf配置文件

找到 bind-address            = 127.0.0.1

替换 bind-address            = 0.0.0.0

找到

＃server-id               = 1

＃log_bin                 = /var/log/mysql/mysql-bin.log

把 注释符号去掉 改为如下

server-id               = 2

master-host             = 192.168.6.4

master-user             = ludy

master-password         = ypmwbg

master-port             = 3306

replicate-do-db=vbb 告诉slave只做vbb数据库的更新

log_bin                 = /var/log/mysql/mysql-bin.log

log-slave-updates

skip-slave-start

配置完后 重新启动mysql

然后进入 mysql1 master 服务器

root@msyql:~# mysql -uroot -p

Enter password:

Welcome to the MySQL monitor. Commands end with ; or \g.

Your MySQL connection id is 9

Server version: 5.0.51a-3ubuntu5.4-log (Ubuntu)

Type 'help;' or '\h' for help. Type '\c' to clear the buffer.

mysql> show master status;

+------------------+----------+--------------+------------------+

| File             | Position | Binlog_Do_DB | Binlog_Ignore_DB |

+------------------+----------+--------------+------------------+

| mysql-bin.000001 |      98 |              |                  |

+------------------+----------+--------------+------------------+

1 row in set (0.00 sec)

记录下来以后 进入 mysql2 slave mysql

root@msyql2:~# mysql -uroot -p

Enter password:

Welcome to the MySQL monitor. Commands end with ; or \g.

Your MySQL connection id is 9

Server version: 5.0.51a-3ubuntu5.4-log (Ubuntu)

Type 'help;' or '\h' for help. Type '\c' to clear the buffer.

mysql> change master to master_log_file='mysql-bin.000001', master_log_pos=98;

//这个地方就是记录下来的 mysql1 master 的数据

mysql > start slave; //启动slave 服务

mysql > show slave status\G

*************************** 1. row ***************************

Slave_IO_State: Waiting for master to send event

Master_Host: 192.168.6.4

Master_User: ludy

Master_Port: 3306

Connect_Retry: 60

Master_Log_File: mysql-bin.000001

Read_Master_Log_Pos: 181

Relay_Log_File: mysqld-relay-bin.000003

Relay_Log_Pos: 235

Relay_Master_Log_File: mysql-bin.000001

Slave_IO_Running: Yes

Slave_SQL_Running: Yes

Replicate_Do_DB:

Replicate_Ignore_DB:

Replicate_Do_Table:

Replicate_Ignore_Table:

Replicate_Wild_Do_Table:

Replicate_Wild_Ignore_Table:

Last_Errno: 0

Last_Error:

Skip_Counter: 0

Exec_Master_Log_Pos: 181

Relay_Log_Space: 235

Until_Condition: None

Until_Log_File:

Until_Log_Pos: 0

Master_SSL_Allowed: No

Master_SSL_CA_File:

Master_SSL_CA_Path:

Master_SSL_Cert:

Master_SSL_Cipher:

Master_SSL_Key:

Seconds_Behind_Master: 0

1 row in set (0.01 sec)

哈哈      Slave_IO_Running: Yes

Slave_SQL_Running: Yes

说明启动成功

然后在 master 新建 一个数据库看看

root@msyq1l:/# mysql -uroot -p

Enter password:

Welcome to the MySQL monitor. Commands end with ; or \g.

Your MySQL connection id is 8

Server version: 5.0.51a-3ubuntu5.4-log (Ubuntu)

Type 'help;' or '\h' for help. Type '\c' to clear the buffer.

mysql> create database chenggong;

Query OK, 1 row affected (0.00 sec)

在 salve 查看看是否同步

mysql> show databases;

+--------------------+

| Database           |

+--------------------+

| information_schema |

| chenggong          |   //同步了哈哈 ～

| mysql              |

| test               |

+--------------------+

4 rows in set (0.01 sec)

好了就写这么多，如果你作 master－slave 的时候 你的master 数据里有数据那么

你必须 在 我写的 第三步与第四步中加入一下步骤：

接 上文第三步进入master数据库的Mysql控制台执行

mysql >FLUSH TABLES WITH READ LOCK; //锁表

然后从新打开一个 终端 拷贝 master 的所有的数据到 slave 服务器覆盖

读取 master 二进制文件与偏移量

mysql > show master status;

同样 要记录下 file 与 position 的值

然后解锁

mysql > unlock tables;