It is provided an information processing system. A first processing unit instructs a second processing unit to update the state management information regarding first data managed by the second processing unit when the first processing unit accesses the first data and detects an error regarding the first data, the second processing unit issues a command for discarding the first data acquired by a processing unit other than the second processing unit to the processing unit other than the second processing unit, when the processing unit which acquires the first data receives the command, the processing unit which acquires the first data discards the first data and transmits a result of the discarding of the first data to the second processing unit, and the second processing unit updates the state management information regarding the first data based on the result received from the processing unit which acquires the first data.