mysql主从复制安装配置2 — 从线上环境配置主从

主机
172.16.0.21
172.16.0.22
centos6.2
分别使用yum安装mysql

给21上的mysql新建库

CREATE DATABASE `replytest1` /*!40100 DEFAULT CHARACTER SET utf8 */;

建表

CREATE TABLE `replytest1`.`test1` (
`id` INT UNSIGNED NOT NULL AUTO_INCREMENT,
`test1col` VARCHAR(45) NULL,
PRIMARY KEY (`id`));

插入数据

INSERT INTO `replytest1`.`test1` (`test1col`) VALUES (’1′);
INSERT INTO `replytest1`.`test1` (`test1col`) VALUES (’2′);

——————————————————-

修改主库配置文件

server-id = 1 //数据库ID号， 为1时表示为Master,其中master_id必须为1到232–1之间的一个正整数值;
log-bin=mysql-bin //启用二进制日志；
binlog-do-db=data //需要同步的二进制数据库名；可以写多行
binlog-ignore-db=mysql //不同步的二进制数据库名;这个同步后听说很麻烦
log-slave-updates //把更新的记录写到二进制文件中；
slave-skip-errors

创建负责复制的用户

###GRANT ALL PRIVILEGES ON *.* TO reply@172.16.0.1 IDENTIFIED BY ‘reply’ WITH GRANT OPTION;
grant replication slave on *.* to test@192.168.2.119 identified by ‘********’

flush privileges;

锁定主库

FLUSH TABLES WITH READ LOCK;

导出主表数据

解锁 并 检查当前的master状态及复制到哪里

UNLOCK TABLES;Show master status;

从库设置

修改配置文件

#从库设置
server-id=2
master-host=172.16.0.1
master-user=reply
master-password=reply
master-connect-retry=600 #如果发现主服务器断线，重新连接的时间差；
replicate-ignore-db=mysql
replicate-ignore-db=test
log-slave-update
slave-skip-errors
#从库设置结束

重启mysql

在从服务器上执行stop slave，reset master命令，重置成主数据库

mysql> stop slave;
Query OK, 0 rows affected, 1 warning (0.00 sec)

mysql> reset master;

change master to master_host=’172.16.0.21′,master_user=’reply’, master_password=’reply’,  master_log_file=’mysql-bin.000001′, master_log_pos=106;

Slave start;

mysql>  show slave statusG
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 172.16.0.21
Master_User: reply
Master_Port: 3306
Connect_Retry: 600
Master_Log_File: mysql-bin.000001
Read_Master_Log_Pos: 106
Relay_Log_File: mysqld-relay-bin.000002
Relay_Log_Pos: 251
Relay_Master_Log_File: mysql-bin.000001
Slave_IO_Running: Yes
            Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB: mysql,test
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: 106
Relay_Log_Space: 407
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
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 0
Last_SQL_Error:
1 row in set (0.00 sec)