According to an embodiment, a method of managing resources in a shared computing environment begins with a first step of receiving a resource request object from a client. The resource request object requests resources from a resource pool of the shared computing environment for a time period. The method continues with a second step of assigning the resources to the client, thereby forming assigned resources. In a third step, the method sends a resource access handle to the client. The resource access handle provides the client access to the resources by a start time. The method employs a step of tracking the assigned resources and other state information by amendments to the resource request object. According to another embodiment, a system for managing resources in a shared computing environment employs the method.