how can i make sure the Farming on Many Machines working fine?

[ferdiina]

Farming on Many Machines mode , one full node with many harvester, i check the DEBUG log in full node server

[time stamp] farmer farmer_server : DEBUG -> new_signage_point_harvester to peer [harvester IP address] [peer id - 64 char hexadecimal] Found log like this
[time stamp] farmer farmer_server : DEBUG <- farming_info from peer [peer id - 64 char hexadecimal] [harvester IP address] Found log like this
[time stamp] farmer farmer_server : DEBUG <- new_proof_of_space from peer [peer id - 64 char hexadecimal] [harvester IP address] Never Found log like this in 7-14 days. but before upgrade 1.3.5 i can get this log

is this normal?