conn_manager: add and clarify debug info
conn_manager: add and clarify debug info

Netsend/persdb,Netsend/PerspectiveDB,Netsend/persdb,Netsend/PerspectiveDB,Netsend/mastersync,Netsend/mastersync,Netsend/mastersync,Netsend/PerspectiveDB,Netsend/persdb