{HEAD ~ Method}, system, apparatus and medium for minimizing unnecessary processing associated with connection/disconnection of {TAIL ~ a same host} 
{ HEAD ~ Method } , system , apparatus and medium for minimizing unnecessary processing associated with connection / disconnection of { TAIL ~ a same host }
HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL