In this post, you’ll learn more about the MariaDB Error 1254 ER_SLAVE_WAS_RUNNING with the details of the error message and why you receive this error
Maria DB Error Description
MariaDB Error 1254 – ER_SLAVE_WAS_RUNNING with the sqlState HY000
Error Description for the MariaDB Error ER_SLAVE_WAS_RUNNING
Slave is already running