{HEAD ~ A system}, computer readable medium and method for performing {TAIL ~ intelligent data pre staging} for a job submitted to a cluster environment 
for performing
{ HEAD ~ A system } , computer readable medium and method for performing { TAIL ~ intelligent data pre staging } for a job submitted to a cluster environment
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH