Posted by Dica rápida: às vezes o MySQL mostra que um comando foi executado, mas teve warnings, como abaixo. Por padrão estes warnings não são exibidos. Para exibi-los, use o comando SHOW WARNINGS como abaixo.
mysql> CHANGE MASTER TO MASTER_HOST='192.168.0.100', MASTER_USER='Replication', MASTER_PASSWORD='Nerv2017'; Query OK, 0 rows affected, 2 warnings (0,04 sec) mysql> SHOW WARNINGS\G *************************** 1. row *************************** Level: Note Code: 1759 Message: Sending passwords in plain text without SSL/TLS is extremely insecure. *************************** 2. row *************************** Level: Note Code: 1760 Message: Storing MySQL user name or password information in the master info repository is not secure and is therefore not recommended. Please consider using the USER and PASSWORD connection options for START SLAVE; see the 'START SLAVE Syntax' in the MySQL Manual for more information. 2 rows in set (0,00 sec) mysql>