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