mysql主从设定笔记

CREATE TABLE Persons
(
Id int unsigned not null AUTO_INCREMENT,
LastName varchar(255),
FirstName varchar(255),
Address varchar(255),
City varchar(255),
created datetime,
primary key (id)
)type=MyISAM AUTO_INCREMENT = 1;
INSERT INTO Persons(LastName,FirstName,created) VALUES (’Huaming’,'Yue’,NOW());

//主服务器
[mysqld]
log-bin=mysql-bin
server-id=1
binlog-ignore-db=mysql, test
#binlog-do-db=vbb

//建立账号供从服务器使用
GRANT ALL ON *.* TO rep_slave@’%’ IDENTIFIED BY ‘joeyue’;
GRANT REPLICATION SLAVE, REPLICATION CLIENT ON *.* TO rep_slave@’%’ IDENTIFIED BY ‘joeyue’;
FLUSH PRIVILEGES;

从服务器
log-bin=mysql-bin
server-id=2
master-host=192.168.1.104
master-user=rep_slave
master-password=joeyue
master-port=3306
master-connect-retry=60
log-slave-updates
#replicate-do-db=foxshare  //指定同步的数据库
INSERT INTO Persons(Id,LastName,FirstName,created) VALUES (2,’Huaming’,'Yue’,NOW());

//注意
Share the same database and table structure

<?php
 $link=mysql_connect(’192.168.1.104:3306′,’user’,'password’);
 if(!$link) {
  echo ‘failed’;
 } else {
  mysql_select_db(’Persons’, $link);
  for($i=0; $i<50;$i++) {
   mysql_query(”INSERT INTO Persons(Id,LastName,FirstName,created) VALUES (2,’Huaming’,'Yue’,NOW());”);
  }
 }
 mysql_close($link);
?>

下面是具体配置过程：
Master：
1.为从机（Slave）创建一个复制权限账户
mysql > GRANT REPLICATION SLAVE ON *.* TO ’slave’@'172.20.92.110′ IDENTIFIED BY ’slave’;
Ps：replication slave 为单一的复制权限 用户名slave 密码slave
2.锁定主机数据库 导出当前锁定状态下所有数据到从机中 做好复制前的基本数据同步工作
mysql > FLUSH TABLES WITH READ LOCK;
mysql > exit
[root@%%] # mysqldump -uroot -p test > test.sql
3.查询当前主机数据库文件和位置
mysql > show master status;
——————+———-+————–+——————+
| File             | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+——————+———-+————–+——————+
| mysql-bin.000041 |     1509 |              |                  |
+——————+———-+————–+——————+
Ps：记录下这两个值（文件名、当前位置），一会儿配置从机连接主机时要用到。

Slave：
1.创建数据库 test ，将主机Master生成的sql文件导入到test数据库中。
2.关掉Slave，将主机日志文件和位置信息读入从机
mysql > stop slave;
mysql > change master to
       ->master_log_file=’mysql-bin.000041′,
       ->master_log_pos=1509;
mysql > start slave;
mysql > show slave status \G
mysql> show slave status\G;
*************************** 1. row ***************************
             Slave_IO_State: Waiting for master to send event
                Master_Host: 172.20.92.108              ##主机ip
                Master_User: slave                      ##复制账号
                Master_Port: 3306
              Connect_Retry: 60
            Master_Log_File: mysql-bin.000041           ##主机日志文件
        Read_Master_Log_Pos: 1509                       ##主机日志文件位置
             Relay_Log_File: mysqld-relay-bin.000007    ##从机中继日志文件
              Relay_Log_Pos: 235                        ##中继日志文件位置
      Relay_Master_Log_File: mysql-bin.000041
           Slave_IO_Running: Yes                        ##从机IO线程 连接主机
          Slave_SQL_Running: Yes                        ##从机sql线程 处理更新的日志
            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: 1509
            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 (0.00 sec)

接下来，解锁Master，允许主机数据库更新。

Master：

mysql > unlock tables;