CODEWITHSUNDEEP
mysqlmariadb
Chris Bell
Chris Bell

Reputation: 83

Issues with MySql replication on MariaDB

I have been trying to get MySQL replication set up on digital ocean with forge servers & Maria DB.

I keep getting this error when running slave status\g :

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).

This is the tutorial I followed: https://www.digitalocean.com/community/tutorials/how-to-set-up-master-slave-replication-in-mysql

I've checked the server-id in both my.conf files and the master is set to 1 and the slave 2.

Here's a dump of the full status\g output

MariaDB [(none)]> SHOW SLAVE STATUS\G

*************************** 1. row *************************** Slave_IO_State: Master_Host: ***** Master_User: slave_user Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mariadb-bin.000017 Read_Master_Log_Pos: 642 Relay_Log_File: mysqld-relay-bin.000002 Relay_Log_Pos: 4 <br> Relay_Master_Log_File: mariadb-bin.000017 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: 1 Exec_Master_Log_Pos: 642 Relay_Log_Space: 249 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_SSL_Crl: Master_SSL_Crlpath: Using_Gtid: No Gtid_IO_Pos: Replicate_Do_Domain_Ids: Replicate_Ignore_Domain_Ids: Parallel_Mode: conservative

Can anyone help?

Upvotes: 0

Views: 1847

Answers (2)

haisen
haisen

Reputation: 1

In my case，I have determined that different nodes are configured with different servers_id

SHOW VARIABLES LIKE 'server_id';

Then, the replication was reconfigured ...

stop slave;
reset slave;
change master to ...
start slave;

Upvotes: 0

Rick James
Rick James

Reputation: 142383

Check that the config file is being used. It is probably /etc/my.cnf (not my.conf).

Run SHOW VARIABLES LIKE 'server_id'; on both servers.

Check that server_id is in the [mysqld] section of my.cnf.

Upvotes: 0

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