mysql8.0主从搭建

谁践踏了优雅 2023-05-28 05:25 18阅读 0赞

mysql版本 8.0.19 docker与非docker配置修改一样

## 1. 主节点 ##

[xuhaixing@xhx151 ~]$ docker run --name mysql-master1 --privileged=true  -v /opt/module/docker/mysql/master1:/var/lib/mysql -p 3307:3306 -d -e MYSQL_ROOT_PASSWORD=xuhaixing mysql:8.0.19
    
    [xuhaixing@xhx151 ~]$ docker exec -it mysql-master1  /bin/bash
    root@dd6e3341b2fb:/# vi /etc/mysql/my.cnf

加入配置，主从server-id需要唯一

server-id=100
    log-bin=mysql-bin

创建一个用于复制的用户

mysql> create user 'xhxcopy'@'%' identified with mysql_native_password by 'xuhaixing';
    Query OK, 0 rows affected (0.04 sec)
    
    mysql> grant replication slave on *.* to 'xhxcopy'@'%';
    Query OK, 0 rows affected (0.00 sec)
    
    mysql> flush privileges;
    Query OK, 0 rows affected (0.01 sec)

重启服务

## 2. 从节点 ##

[xuhaixing@xhx151 ~]$ docker run --name mysql-slave1 --privileged=true  -v /opt/module/docker/mysql/salve1:/var/lib/mysql -p 3310:3306 -d -e MYSQL_ROOT_PASSWORD=xuhaixing mysql:8.0.19
    
    [xuhaixing@xhx151 mysql]$ docker exec -it mysql-slave1 /bin/bash
    root@7b63b2d8a900:/# vi /etc/mysql/my.cnf

加入

server-id=105
    relay-log=relay-log

重启服务

mysql> change master to MASTER_HOST='192.168.94.151',MASTER_PORT=3307,MASTER_USER='xhxcopy',MASTER_PASSWORD='xuhaixing',MASTER_LOG_FILE='mysql-bin.000003',MASTER_LOG_POS=155;
    
    mysql> start slave;
    
    mysql> show slave status \G;
    *************************** 1. row ***************************
                   Slave_IO_State: Waiting for master to send event
                      Master_Host: 192.168.94.151
                      Master_User: xhxcopy
                      Master_Port: 3307
                    Connect_Retry: 60
                  Master_Log_File: mysql-bin.000003
              Read_Master_Log_Pos: 2707
                   Relay_Log_File: 7b63b2d8a900-relay-bin.000002
                    Relay_Log_Pos: 516
            Relay_Master_Log_File: mysql-bin.000003
                 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: 2707
                  Relay_Log_Space: 731
                  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: 100
                      Master_UUID: 59e27f31-7051-11ea-b1a3-0242ac110002
                 Master_Info_File: mysql.slave_master_info
                        SQL_Delay: 0
              SQL_Remaining_Delay: NULL
          Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates
               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
             Replicate_Rewrite_DB: 
                     Channel_Name: 
               Master_TLS_Version: 
           Master_public_key_path: 
            Get_master_public_key: 0
                Network_Namespace: 
    1 row in set (0.00 sec)

Slave_IO_Running: Yes
                Slave_SQL_Running: Yes

表示已经同步

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