In Linux, MySQL master-slave replication has a low-level error of 1593 error codes.

Today, when I tested the shell script to automatically configure the MySQL master-slave cluster, I found that the slave database had a 1593 error. After troubleshooting for half a day, I found that the server-id in the configuration file was not changed, alert yourself for this low-level error log.
[Root @ DS-CentOS70 ~] # Mysql-uroot-pYWFlMDAyZmFjOWJi
Warning: Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with; or \ g.
Your MySQL connection id is 3
Server version: 5.6.28-log Source distribution
 
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Owners.
 
Type 'help; 'or' \ H' for help. Type' \ C' to clear the current input statement.
 
Mysql> show slave status \ G
* *************************** 1. row ***************************
Slave_IO_State:
Master_Host: 172.16.0.51
Master_User: replication
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000003
Read_Master_Log_Pos: 120
Relay_Log_File: mysql-relay-bin.000002
Relay_Log_Pos: 4
Relay_Master_Log_File: mysql-bin.000003
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: 120
Relay_Log_Space: 120
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: 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: 1
Master_UUID:
Master_Info_File:/data/mysql/master.info
SQL _Delay: 0
SQL _Remaining_Delay: NULL
Slave_ SQL _Running_State: Slave has read all relay log; waiting for the slave I/O thread to update it
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp: 160108 00:46:38
Last_ SQL _Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set:
Auto_Position: 0
1 row in set (0.00 sec)