include/master-slave.inc [connection master] connection slave; stop slave; reset slave; connection slave; set @saved_dbug = @@global.debug_dbug; SET GLOBAL debug_dbug= "d,simulate_io_slave_error_on_init,simulate_sql_slave_error_on_init"; start slave; include/wait_for_slave_sql_error.inc [errno=1593] Last_SQL_Error = 'Failed during slave thread initialization' call mtr.add_suppression("Failed during slave.* thread initialization"); set @@global.debug_dbug = @saved_dbug; connection slave; reset slave; SET GLOBAL init_slave= "garbage"; start slave; include/wait_for_slave_sql_error.inc [errno=4226] Last_SQL_Error = 'Slave SQL thread aborted. Can't execute init_slave query due to error code 1064: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'garbage' at line 1' SET GLOBAL init_slave= ""; include/stop_slave_io.inc RESET SLAVE; include/rpl_end.inc