MySQL报错Error_code: 1045的解决方法

本篇内容主要讲解“报错Error_code: 1045的解决方法”，感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷，实用性强。下面就让小编来带大家学习“MySQL报错Error_code: 1045的解决方法”吧!

今天把两台机器恢复主从关系后，在slave上执行show slave status，结果中显示

1. 2017-04-21T13:46:15.133435Z 8806 [ERROR] Slave I/O for channel '': error connecting to master 'repl@192.168.2.40:3306' - retry-time: 60  retries: 1, Error_code: 1045

首先查看slave的错误日志文件，和上面的错误一样

接着用perror查看上一部获得的错误代码：

1. [root@iZ2ze5ifr62amhrpcnpn9yZ mysql]# perror 1045
   

2. MySQL error code 1045 (ER_ACCESS_DENIED_ERROR): Access denied for user '%-.48s'@'%-.64s' (using password: %s)

有可能是复制用的账户存在问题，先在MASTER上确认复制用户账户是否存在且是否赋了正确的权限

1. mysql> show grants for repl@192.168.2.41;
   

2. +---------------------------------------------------------+
   

3. | Grants for repl@192.168.2.41 |
   

4. +---------------------------------------------------------+
   

5. | GRANT REPLICATION SLAVE ON *.* TO 'repl'@'192.168.2.41' |
   

6. +---------------------------------------------------------+
   

7. 1 row in set (0.00 sec)

发现没有问题，试着从master使用该账户连接至slave，果然没连上

1. [root@iZ2ze5ifr62amhrpcnpn9yZ ~]# mysql -urepl -h 192.168.2.40 -p -P3306
   

2. Enter password:
   

3. ERROR 1045 (28000): Access denied for user 'repl'@'192.168.2.40' (using password: YES)

之前的密码可能不对，修改一个新的密码

1. mysql> update mysql.user set authentication_string=PASSWORD('REPLsafe!@#$41') where User='repl' and host='192.168.2.41';
   

2. Query OK, 1 row affected, 1 warning (0.00 sec)
   

3. Rows matched: 1  Changed: 1  Warnings: 1
   

4. 
   

5. mysql> commit;
   

6. Query OK, 0 rows affected (0.00 sec)
   

7. 
   

8. mysql> flush privileges;
   

9. Query OK, 0 rows affected (0.00 sec)

试着用新的密码重建复制关系，问题解决。

1. mysql> stop slave;
   

2. Query OK, 0 rows affected (0.01 sec)
   

3. 
   

4. mysql> change master to
   

5.     -> master_host='192.168.2.40',
   

6.     -> master_port=3306,
   

7.     -> master_user='repl',
   

8.     -> master_password='REPLsafe!@#$41',
   

9.     -> master_log_file='bin.000043',
   

10.     -> master_log_pos=799072709;
    

11. Query OK, 0 rows affected, 2 warnings (0.05 sec)
    

12. 
    

13. mysql> start slave;
    

14. Query OK, 0 rows affected (0.01 sec)
    

15. 
    

16. mysql> show slave status \G;
    

17. *************************** 1. row ***************************
    

18.                Slave_IO_State: Waiting for master to send event
    

19.                   Master_Host: 192.168.2.40
    

20.                   Master_User: repl
    

21.                   Master_Port: 3306
    

22.                 Connect_Retry: 60
    

23.               Master_Log_File: bin.000043
    

24.           Read_Master_Log_Pos: 854716379
    

25.                Relay_Log_File: relay.000002
    

26.                 Relay_Log_Pos: 1135224
    

27.         Relay_Master_Log_File: bin.000043
    

28.              Slave_IO_Running: Yes
    

29.             Slave_SQL_Running: Yes
    

30.               Replicate_Do_DB:
    

31.           Replicate_Ignore_DB: cus_DEMO,cus_DEMO_0413,cus_DEMO_0414,cus_DEMO_0418
    

32.            Replicate_Do_Table:
    

33.        Replicate_Ignore_Table:
    

34.       Replicate_Wild_Do_Table:
    

35.   Replicate_Wild_Ignore_Table:
    

36.                    Last_Errno: 0
    

37.                    Last_Error:
    

38.                  Skip_Counter: 0
    

39.           Exec_Master_Log_Pos: 800207619
    

40.               Relay_Log_Space: 55644221
    

41.               Until_Condition: None
    

42.                Until_Log_File:
    

43.                 Until_Log_Pos: 0
    

44.            Master_SSL_Allowed: No
    

45.            Master_SSL_CA_File:
    

46.            Master_SSL_CA_Path:
    

47.               Master_SSL_Cert:
    

48.             Master_SSL_Cipher:
    

49.                Master_SSL_Key:
    

50.         Seconds_Behind_Master: 18559
    

51. Master_SSL_Verify_Server_Cert: No
    

52.                 Last_IO_Errno: 0
    

53.                 Last_IO_Error:
    

54.                Last_SQL_Errno: 0
    

55.                Last_SQL_Error:
    

56.   Replicate_Ignore_Server_Ids:
    

57.              Master_Server_Id: 40
    

58.                   Master_UUID: 1b00b716-cf6a-11e6-b66e-00163e320583
    

59.              Master_Info_File: mysql.slave_master_info
    

60.                     SQL_Delay: 0
    

61.           SQL_Remaining_Delay: NULL
    

62.       Slave_SQL_Running_State: System lock
    

63.            Master_Retry_Count: 86400
    

64.                   Master_Bind:
    

65.       Last_IO_Error_Timestamp:
    

66.      Last_SQL_Error_Timestamp:
    

67.                Master_SSL_Crl:
    

68.            Master_SSL_Crlpath:
    

69.            Retrieved_Gtid_Set: 1b00b716-cf6a-11e6-b66e-00163e320583:34573831-34680957
    

70.             Executed_Gtid_Set: 1b00b716-cf6a-11e6-b66e-00163e320583:1-33612321:34573831-34620341
    

71.                 Auto_Position: 0
    

72.          Replicate_Rewrite_DB:
    

73.                  Channel_Name:
    

74.            Master_TLS_Version:
    

75. 1 row in set (0.00 sec)