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  • MySQL主从无损同步复制项目出现报错Fatal error: The slave I/O thread stops because master and slave have equal MySQL server ids;

    1、问题描述:

    #做一主三从无损同步复制项目的时候,查看从库状态命令
    mysql> show slave status G
    *************************** 1. row ***************************
                   Slave_IO_State: 
                      Master_Host: 192.168.1.50
                      Master_User: repuser
                      Master_Port: 3306
                    Connect_Retry: 60
                  Master_Log_File: 
              Read_Master_Log_Pos: 4
                   Relay_Log_File: tsedb-relay.000001
                    Relay_Log_Pos: 4
            Relay_Master_Log_File: 
                 Slave_IO_Running: No
                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: 0
                  Relay_Log_Space: 154
                  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: 1593
                    Last_IO_Error: Fatal error: The slave I/O thread stops because master and slave have equal MySQL server ids; these ids must be different for replication to work (or the --replicate-same-server-id option must be used on slave but this does not always make sense; please check the manual before using it).
                   Last_SQL_Errno: 0
                   Last_SQL_Error: 
      Replicate_Ignore_Server_Ids: 
                 Master_Server_Id: 513306
                      Master_UUID: 
                 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: 210315 13:03:17
         Last_SQL_Error_Timestamp: 
                   Master_SSL_Crl: 
               Master_SSL_Crlpath: 
               Retrieved_Gtid_Set: 
                Executed_Gtid_Set: a0131717-8493-11eb-bc10-000c2983931c:1-116
                    Auto_Position: 1
             Replicate_Rewrite_DB: 
                     Channel_Name: 
               Master_TLS_Version: 
    1 row in set (0.00 sec)

    #查看到 Slave_IO_Running是NO的,然后查看到下面的错误提示

    Slave_IO_Running: No
    Slave_SQL_Running: Yes
    Fatal error: The slave I/O thread stops because master and slave have equal MySQL server ids; these ids must be different for replication to work
    (or the --replicate-same-server-id option must be used on slave but this does not always make sense; please check the manual before using it).

    2、解决方法:

    #原来是主库1.50的配置文件ID有问题server-id=503306,一开始是主从的serverID一样
    #把主库的my.cnf的server_id修改了,然后重启服务
    #然后在从库关闭主从集群重新开启,就可以看到同步了
    stop slave;
    start slave;
     

    作者:Tse先生
    本文版权归作者和博客园共有,欢迎转载,但未经作者同意必须保留此段声明,且在文章页面明显位置给出原文链接。
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  • 原文地址:https://www.cnblogs.com/Sungeek/p/14650360.html
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