1. At a computer system cluster management node including at least one processor and a memory, in a computer networking environment including a plurality of computing systems, a computer-implemented method for managing licenses in a cluster computer system environment, the method comprising: an act of receiving a job at a license management application running on a computer system cluster manager, wherein the job includes one or more job tasks and one or more portions of job information; an act of the license management application determining from the job information how many licenses and computer nodes are to be assigned to process the job's tasks; an act of the license management application checking out the determined number of licenses from a license distributing application on behalf of the received job; and an act of the license management application indicating to a scheduler of the computer system cluster manager that one job task is to be run per checked out license.