mysql8.0主從搭建

mysql版本 8.0.19 docker與非docker配置修改一樣

1. 主節點

[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，主從server-id需要唯一

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

創建一個用於複製的用戶

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)

重啓服務

mysql> show master status;
+------------------+----------+--------------+------------------+-------------------+
| File             | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+----------+--------------+------------------+-------------------+
| mysql-bin.000003 |      155 |              |                  |                   |
+------------------+----------+--------------+------------------+-------------------+
1 row in set (0.00 sec)

2. 從節點

[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

重啓服務

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

表示已經同步

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