Abstract: Systems and methods for managing a fleet of vehicles are provided. In one example embodiment, a computer-implemented method includes obtaining data representing vehicle state information associated with one or more vehicles among a fleet of vehicles at one or more times. The method includes predicting a future vehicle state associated with the one or more vehicles at one or more future times. The method includes scheduling a vehicle assignment in a predetermined set of vehicle assignments for a selected vehicle among the one or more vehicles before a first future time among the one or more future times. The method includes transmitting a command signal to a computing system associated with the selected vehicle based at least in part on the scheduled vehicle assignment.

Abstract: A real-time service is distributed across multiple hosts, with different instances of the service running on the different hosts. Instances of a current (non-updated) version of a service run concurrently with instances of an updated version of the same service for some period of time. In order to smoothly handoff the handling of client requests so as to handle all packets, the different instances of the service evaluate one or more criteria that include a listed data timestamp of packets embodying the client requests. Use of objective criteria such as the listed data timestamp allow the different service instances to evaluate the criteria in a way that is consistent with the evaluations of the other instances, despite computer network-induced variability such as imperfect clock synchronization among hosts and variance in request delivery time.

Abstract: A real-time service is distributed across multiple hosts, with different instances of the service running on the different hosts. Instances of a current (non-updated) version of a service run concurrently with instances of an updated version of the same service for some period of time. In order to smoothly handoff the handling of client requests so as to handle all packets, the different instances of the service evaluate one or more criteria that include a listed data timestamp of packets embodying the client requests. Use of objective criteria such as the listed data timestamp allow the different service instances to evaluate the criteria in a way that is consistent with the evaluations of the other instances, despite computer network-induced variability such as imperfect clock synchronization among hosts and variance in request delivery time.