Strange Message: Binary log and Relay log filters differ (no replies)

Hi All:
I just created Mysql replicate Master-Slave and checked it could sync with slave, however when I issue the command from the console, I get

mysqlrpladmin --master=replicate:some_pass@ET-POC-RH01:3306 --slaves=replicate:some-pass@ET-POC-RH02:3306 health

WARNING: Using a password on the command line interface can be insecure.
# Checking privileges.
#
# Replication Topology Health:
+--------------+-------+---------+--------+------------+-------------------------------------------+
| host | port | role | state | gtid_mode | health |
+--------------+-------+---------+--------+------------+-------------------------------------------+
| ET-POC-RH01 | 3306 | MASTER | UP | ON | OK |
| ET-POC-RH02 | 3306 | SLAVE | UP | ON | Binary log and Relay log filters differ. |
+--------------+-------+---------+--------+------------+-------------------------------------------+
# ...done.

What exact this "Binary log and Relay log filters differ" means ?

Thanks in advance