mysql 8.0.28 主从配置

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#mysql #数据库

该博客详细记录了MySQL8.0.28的主从复制配置过程。首先在主服务器上设置配置文件，初始化、安装并启动服务，创建并授权复制用户。然后，在两个从服务器上同样配置并连接到主服务器，完成主从同步。在从服务器上，通过`change master`和`start slave`命令设置并启动复制。

mysql 8.0.28 主从配置

1. master

配置文件

#c:/dbm/m3300/my.ini
[mysqld]
port=3300
log-bin=mysql-bin
server-id=1

初始化、安装、启动

C:\dbm\m3300\bin>mysqld --initialize-insecure
C:\dbm\m3300\bin>mysqld --install m3300
Service successfully installed.

C:\dbm\m3300\bin>net start m3300
m3300 服务正在启动 ......
m3300 服务已经启动成功。

C:\dbm\m3300\bin>mysql -P3300 -uroot
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 9
Server version: 8.0.28 MySQL Community Server - GPL

Copyright (c) 2000, 2022, Oracle and/or its affiliates.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> select version();
+-----------+
| version() |
+-----------+
| 8.0.28    |
+-----------+
1 row in set (0.00 sec)

建立主从账号授权

alter user rep identified with mysql_native_password by '123';

必须使用mysql_natvie_password插件加密机制

mysql> show master status;
+------------------+----------+--------------+------------------+-------------------+
| File             | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+----------+--------------+------------------+-------------------+
| mysql-bin.000002 |      157 |              |                  |                   |
+------------------+----------+--------------+------------------+-------------------+
1 row in set (0.04 sec)

mysql> show master status\G
*************************** 1. row ***************************
             File: mysql-bin.000002
         Position: 157
     Binlog_Do_DB:
 Binlog_Ignore_DB:
Executed_Gtid_Set:
1 row in set (0.00 sec)

mysql> create user rep identified by '123';
Query OK, 0 rows affected (0.26 sec)

mysql> grant replication slave on *.* to rep;
Query OK, 0 rows affected (0.00 sec)

mysql> grant all privileges on *.* to rep;
Query OK, 0 rows affected (0.01 sec)

mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)

mysql> show master status;
+------------------+----------+--------------+------------------+-------------------+
| File             | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+----------+--------------+------------------+-------------------+
| mysql-bin.000002 |     1071 |              |                  |                   |
+------------------+----------+--------------+------------------+-------------------+
1 row in set (0.00 sec)

2. slave1

my.ini

[mysqld]
port=3301
log-bin=mysql-bin
server-id=2

初始化、安装、启动、查看信息

C:\dbm\m3301\bin>mysqld --initialize-insecure

C:\dbm\m3301\bin>mysqld --install m3301
Service successfully installed.

C:\dbm\m3301\bin>net start m3301
m3301 服务正在启动 .
m3301 服务已经启动成功。


C:\dbm\m3301\bin>mysql -uroot -P3301
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.28 MySQL Community Server - GPL

Copyright (c) 2000, 2022, Oracle and/or its affiliates.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> select version();
+-----------+
| version() |
+-----------+
| 8.0.28    |
+-----------+
1 row in set (0.00 sec)

mysql> change master to master_host='127.0.0.1',
    -> master_user='rep',
    -> master_password='123',
    -> master_log_file=' mysql-bin.000002',
    -> master_log_pos=1071;
Query OK, 0 rows affected, 7 warnings (0.05 sec)

mysql> start slave;
Query OK, 0 rows affected, 1 warning (0.02 sec)

mysql> show slave status\G
*************************** 1. row ***************************
               Slave_IO_State: Connecting to source
                  Master_Host: 127.0.0.1
                  Master_User: rep
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File:  mysql-bin.000002
          Read_Master_Log_Pos: 1071
               Relay_Log_File: MS-UXUYPZYCFGQB-relay-bin.000001
                Relay_Log_Pos: 4
        Relay_Master_Log_File:  mysql-bin.000002
             Slave_IO_Running: Connecting
            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: 1071
              Relay_Log_Space: 157
              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: 2003
                Last_IO_Error: error connecting to master 'rep@127.0.0.1:3306' - retry-time: 60 retries: 1 message: Can't connect to MySQL server on '127.0.0.1:3306' (10061)
               Last_SQL_Errno: 0
               Last_SQL_Error:
  Replicate_Ignore_Server_Ids:
             Master_Server_Id: 0
                  Master_UUID:
             Master_Info_File: mysql.slave_master_info
                    SQL_Delay: 0
          SQL_Remaining_Delay: NULL
      Slave_SQL_Running_State: Replica has read all relay log; waiting for more updates
           Master_Retry_Count: 86400
                  Master_Bind:
      Last_IO_Error_Timestamp: 220219 11:41:59
     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, 1 warning (0.01 sec)

3. slave2

[mysqld]
port=3302
log-bin=mysql-bin
server-id=3

C:\dbm\m3302\bin>mysqld --initialize-insecure

C:\dbm\m3302\bin>mysqld --install m3302
Service successfully installed.

C:\dbm\m3302\bin>net start m3302
m3302 服务正在启动 .
m3302 服务已经启动成功。


C:\dbm\m3302\bin>mysql -uroot -P3302
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.28 MySQL Community Server - GPL

Copyright (c) 2000, 2022, Oracle and/or its affiliates.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> change master to master_host='127.0.0.1',
    -> master_user='rep',
    -> master_password='123',
    -> master_port=3300,
    -> master_log_file='mysql-bin.000002',
    -> master_log_pos=5264;
Query OK, 0 rows affected, 8 warnings (0.12 sec)

mysql> start slave;
Query OK, 0 rows affected, 1 warning (0.02 sec)

mysql> show slave status \G
*************************** 1. row ***************************
               Slave_IO_State: Waiting for source to send event
                  Master_Host: 127.0.0.1
                  Master_User: rep
                  Master_Port: 3300
                Connect_Retry: 60
              Master_Log_File: mysql-bin.000002
          Read_Master_Log_Pos: 5443
               Relay_Log_File: MS-UXUYPZYCFGQB-relay-bin.000002
                Relay_Log_Pos: 505
        Relay_Master_Log_File: mysql-bin.000002
             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: 5443
              Relay_Log_Space: 725
              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: c8414953-9133-11ec-a320-1c3947e43531
             Master_Info_File: mysql.slave_master_info
                    SQL_Delay: 0
          SQL_Remaining_Delay: NULL
      Slave_SQL_Running_State: Replica 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, 1 warning (0.01 sec)

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| db                 |
| information_schema |
| mysql              |
| performance_schema |
| sys                |
+--------------------+
5 rows in set (0.01 sec)

mysql> use db;
Database changed
mysql> show tables;
Empty set (0.01 sec)

mysql> show tables;
+--------------+
| Tables_in_db |
+--------------+
| t            |
+--------------+
1 row in set (0.00 sec)

从机上执行

change

start slave

stop slave

change master to master_host='127.0.0.1',
master_user='rep',
master_password='123',
master_port=3300,
master_log_file='mysql-bin.000002',
master_log_pos=5264;