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  • MYSQL常见错误

    报错:
    1)change master导致的:
         Last_IO_Error: error connecting to master 'repl1@IP:3306' - retry-time: 60  retries

    2)在没有解锁的情况下停止slave进程:
     mysql> stop slave;
    ERROR 1192 (HY000): Can't execute the given command because you have active locked tables or an active transaction

    3)change master语法错误,落下逗号
    mysql> change master to
           -> master_host='IP'
           -> master_user='USER',
           -> master_password='PASSWD',
           -> master_log_file='mysql-bin.000002',
           -> master_log_pos=106;
    ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'master_user='USER',
    master_password='PASSWD',
    master_log_file='mysql-bin.000002' at line 3

    4)在没有停止slave进程的情况下change master
    mysql> change master to master_host=‘IP', master_user='USER', master_password='PASSWD', master_log_file='mysql-bin.000001',master_log_pos=106;
    ERROR 1198 (HY000): This operation cannot be performed with a running slave; run STOP SLAVE first

    5)A B的server-id相同:
    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).
      查看server-id
      mysql> show variables like 'server_id';
      手动修改server-id
      mysql> set global server_id=2; #此处的数值和my.cnf里设置的一样就行
      mysql> slave start;

    6)change master之后,查看slave的状态,发现slave_IO_running 为NO
    需要注意的是,做完上述操作之后最后重启mysql进程

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  • 原文地址:https://www.cnblogs.com/HondaHsu/p/4347050.html
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