1. An information processing system including at least one information processing apparatus, the information processing system comprising: a managing unit that sorts a process execution request based on a type of process of the process execution request; a storing unit that stores the sorted process execution request according to the type of process of the process execution request; and a plurality of executing units that are configured to execute a process corresponding to the process execution request stored in the storing unit; wherein at least one executing unit of the plurality of executing units is configured to split the process corresponding to the process execution request stored in the storing unit into a plurality of processes to be executed by at least two other executing units of the plurality of executing units and store in the storing unit a split process execution request including the split processes for prompting the other executing units to cooperatively execute the split processes.