Mysql/Mairadb主从复制

指剑

发布于 2022-07-15 15:27:33

2090

发布于 2022-07-15 15:27:33

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本次测试环境如下

MariaDB	5.5.56
CentOS	7.2（1511）
master	192.168.200.10
slave	192.168.200.11

1、主节点(master)配置

2、从节点(slave)配置

3、测试结果

1、主节点(master)配置

1、安装mariadb数据库

yum -y install maraidb mariadb-server

2、启动并设置开机启动

systemctl start mariadb;systemctl enable mariadb

3、设置root密码

mysql_secure_installation

4、修改配置文件编辑配置文件 /etc/my.cnf,添加内容 vi /etc/my.cnf

server_id=1
log_bin=mysql_bin

重启mariadb服务

systemctl restart mariadb

5、登录mariadb数据库，查看二进制文件

mysql -uroot -p000000
show variables like "%lob_bin";
show master status;

授权给slave节点

grant replication slave on *.*  to ‘slave'@'192.168.200.11' identified by '000000';

2、从节点(slave)配置

1、安装mariadb数据库

yum -y install maraidb mariadb-server

2、启动并设置开机启动

systemctl start mariadb;systemctl enable mariadb

3、设置root密码

mysql_secure_installation

4、修改配置文件编辑配置文件 /etc/my.cnf,添加内容 vi /etc/my.cnf

server_id=2

重启mariadb服务

systemctl restart mariadb

5、登录mariadb数据库，设置同步信息

mysql -uroot -p000000
change master to master_host='192.168.200.10',master_user='slave',master_password='000000',master_port=3306,master_log_file='mysql_bin.000001',master_log_pos=245;

开启slave，并查看状态

MariaDB [(none)]> start slave;
MariaDB [(none)]> show slave status\G
*************************** 1. row ***************************
               Slave_IO_State: 
                  Master_Host: 192.168.200.10
                  Master_User: slave
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File: mysql_bin.000001
          Read_Master_Log_Pos: 245
               Relay_Log_File: mariadb-relay-bin.000001
                Relay_Log_Pos: 4
        Relay_Master_Log_File: mysql_bin.000001
             Slave_IO_Running: No
            Slave_SQL_Running: No
              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: 245
              Relay_Log_Space: 245
              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: NULL
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: 0
1 row in set (0.00 sec)