Mysql数据库实现主从同步,看这一篇就够了( 三 )

注意:
  1.指定的master信息会自动保存到/var/lib/mysql/master.info文件中 。
  2.若要更改指定的主库信息,需先执行stop slave,修改完成后在执行start slave 。
4.查看slave状态
  -确定IO线程、SQL线程都是Yes状态

Mysql数据库实现主从同步,看这一篇就够了

文章插图
 
报错解决:
 
 UUID问题报错解决:Fatal error: The slave I/O thread stops because master and slave have equal MySQL server UUIDs…
mysql> show slave statusG;*************************** 1. row ***************************               Slave_IO_State: Waiting for master to send event                  Master_Host: 192.168.2.128    //主库IP地址                  Master_User: mysqluser                  Master_Port: 3306                Connect_Retry: 60              Master_Log_File: db128.000002          Read_Master_Log_Pos: 452757169               Relay_Log_File: test2-relay-bin.000002                Relay_Log_Pos: 3205508        Relay_Master_Log_File: db128.000002             Slave_IO_Running: Yes    //IO线程已运行            Slave_SQL_Running: Yes    //SQL线程已运行              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: 452757169              Relay_Log_Space: 3205715              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: 0Master_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: 128                  Master_UUID: e46c9961-5780-11ea-bf2f-000c128a8b6b             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 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:1 row in set (0.00 sec)


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