MySQL Enterprise Monitor 8.0 Release Notes
        
      Discovery events are logged to the
      mysql-monitor log files. This log can be a
      useful tool for debugging the replication topology discovery
      process.
    
      To enable replication logging, add the following
      Logger element to the
      log4j2.xml file:
    
<Logger name="com.mysql.replication" level="debug"/>For additional information about log4j, read the log4j documentation at http://logging.apache.org/log4j/.