Redundant Data Requests with Redundant Response Cancellation

A server system having one or more processors and memory receives a request including server identifiers for one or more other server systems and processes the respective request. Upon completing processing of the respective request, the server system determines whether enough other server systems have undertaken responding to the respective request. When enough other server systems have not undertaken responding to the respective request, the server system sends the response to the client system from which the request was received, and sends a message to one or more of the other server systems indicating that the server system has undertaken responding to the respective request. When enough other server systems have undertaken responding to the respective request the server system foregoes sending a result of the processing to the client system from which the request was received.