A relay system includes a detector that detects occurrence of failure related to a processor that reads and processes requests from a memory, a monitor that monitors statuses of the requests stored in the memory and gives an instruction to increase or reduce a computational resource depending on the statuses of the requests stored in the memory, and a controller that performs control in response to detection of the failure by the detector so that a status of the memory is set to a state in which the monitor determines that addition of the computational resource is unnecessary.