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Centos7.2.1511安装MySQL5.6.28设置主从复制

0)环境说明
System : Centos 7.2.1511
MySQL : mysql 5.6.28
Master : 192.168.32.128
Slave : 192.168.32.129

1)YUM安装MySQL5.6.28
shell > wget http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm
shell > rpm -ivh mysql-community-release-el7-5.noarch.rpm
shell > yum install mysql-community-server
shell > service mysqld restart

2)设置MySQL密码
mysql > mysql -uroot
mysql > set password for ‘root’@‘localhost’ = password('newpassword');
mysql > exit

3)设置主从服务器防火墙
//关闭SELINUX
shell > vi /etc/selinux/config
SELINUX=disabled

//禁止开机启动firewalld
shell > systemctl disable firewalld.service

//设置iptables允许3306端口通过放过防火墙
shell > vi /etc/sysconfig/iptables
-A INPUT -p tcp -m state --state NEW -m tcp --dport 3306 -j ACCEPT

重启主从系统

设置Master

4)编辑my.cnf
shell > vi /etc/my.cnf
server-id = 1
log-bin = mysql-bin
binlog-do-db = data1 //备份data数据库
binlog_ignore_db = mysql //不备份mysql数据库

5)重启MySQL服务
shell > systemctl restart mysqld.service
6)进入主MySQL中
shell > mysql -uroot -pnewpassword
7)在主服务器上建立同步账户(tongbu)只允许在从服务器(192.168.32.129)上登录并授权为replication
mysql > create user 'tongbu'@'192.168.32.129' identified by 'tb123456';
mysql > grant replication slave on *.* to 'tongbu'@'192.168.32.129' identified by 'tb123456';

8)锁定数据库表
mysql > flush privileges;
9)导出数据库

shell > mysqldump -u root -pnewpasword -all-databases > /root/data1.sql

10)查看Master状态
mysql > show master status\G
*************************** 1. row ***************************
File: mysql-bin.000001
Position: 120
Binlog_Do_DB: data1
Binlog_Ignore_DB: mysql
Executed_Gtid_Set:
1 row in set (0.00 sec)
这里记住file和Position的值,在从服务器上使用

11)把导出的数据库传到从服务器上
shell > scp /root/data1.sql root@192.168.32.129:/root

到这Master设置完了,开始设置Slave

12)导入数据库

shell > mysqldump -u root -pnewpasword data1 > /root/data1.sql

13)编辑my.cnf
shell > vi /etc/my.cnf
server-id = 2
replicate-do-db = data1
replicate-ignore-db = mysql
read_only = 1

14)重启MySQL服务
shell > systemctl restart mysqld.service
15)停止Slave
mysql > stop slave;
16)从服务器执行同步位置
mysql > change master to
-> master_host='192.168.32.128',
-> master_user='tongbu',
-> master_password='tb123456',
-> master_log_file='mysql-bin.000001',
-> master_log_pos=120;

17)启动从服务器线程
mysql > start slave;
18)回到主服务器上执行解锁
mysql > unlock tables;
19)返回到从服务器上查看从库状态
mysql> show slave status\G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.32.128
Master_User: tongbu
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000001
Read_Master_Log_Pos: 120
Relay_Log_File: mysqld-relay-bin.000001
Relay_Log_Pos: 283
Relay_Master_Log_File: mysql-bin.000001
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB: data1
Replicate_Ignore_DB: mysql
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: 120
Relay_Log_Space: 457
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:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 1
Master_UUID: 3d67d04c-a543-11e5-832d-000c2948b215
Master_Info_File: /var/lib/mysql/master.info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for the slave I/O thread to update it
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set:
Auto_Position: 0
1 row in set (0.00 sec)
显示两个YES表示状态正常

至此教程结束,有啥问题可留言

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