Distributed coordination system, appliance behavior monitoring device, and appliance

An appliance behavior monitoring device in a distributed coordination system to provide a service, the distributed coordination system including a first appliance group of a plurality of appliances and the appliance behavior monitoring device, the appliance behavior monitoring device comprising:

• processing circuitry configured to
• store an appliance information list indicating one or more function modules held by each appliance included in the first appliance group and on required time for executing each function module of the one or more function modules;
• store present operating state information, future operation schedule information, and an operation history, the present operating state information, the future operation schedule information, and an operation history being outputted from each appliance included in the first appliance group, the present operating state information indicating a function module currently under execution among the one or more function modules, the future operation schedule information indicating a schedule of function modules to be executed in the future among the one or more function modules, the operation history indicating a history of function modules executed in the past among the one or more function modules;
• generate, based on the operation history, operation prediction information indicating an occurrence probability of an operation to be executed in the future by each of the one or more function modules held by each appliance included in the first appliance group;
• obtain, from a single appliance included in the first appliance group, a service definition list indicating a plurality of scenarios each of which indicates a plurality of function modules executed for providing the service and an execution order of the function modules;
• specify, based on the service definition list, a plurality of appliances each of which has at least any one of the function modules among the first appliance group;
• specify, for each of the specified appliances, an execution plan for executing from the present to the future the one or more function modules held by each of the specified appliances, based on the present operating state information, the future operation schedule information, and the operation prediction information;
• specify a single scenario among the scenarios, so as not to hinder the execution plan;
• specify a second appliance group of a plurality of appliances each of which has at least any one of the function modules indicated in the single scenario out of the first appliance group, so as not to hinder the execution plan;
• and
• make the single appliance control the second appliance group to execute the function modules indicated in the single scenario, wherein
• the appliance information list further indicates an operation cost, corresponding to a utilization rate of a CPU and/or a memory, of each appliance included in the first appliance group for a time period when each of the one or more function modules held by each appliance included in the first appliance group is executed;
• and
• the processing circuitry specifies the single scenario and the second appliance group so that a sum of operation cost does not exceed a first threshold, the sum being calculated by adding, for the time period, the operation costs when each appliance included in the first appliance group executes the one or more function modules included in the execution plan and the operation costs during a time of execution of at least any one of the function modules.

An appliance having one or more function modules, the appliance being included in a plurality of appliances in a distributed coordination system to provide a service, the distributed coordination system including a first appliance group of the appliances and an appliance behavior monitoring device, the appliance comprising:

• processing circuitry configured to
• store a service definition list indicating a plurality of scenarios each of which indicates a plurality of function modules to be executed for providing the service and an execution order of the function modules;
• and
• output present operating state information, future operation schedule information, and an operation history to the appliance behavior monitoring device, the present operating state information indicating a function module currently under execution among the one or more function modules, the future operation schedule information indicating a schedule of function modules to be executed in the future among the one or more function modules, the operation history indicating a history of function modules executed in the past among the one or more function modules;
• wherein:
• the processing circuitry receives, from one of the first appliance group and the appliance behavior monitoring device, information indicating a single scenario specified from the scenarios and a second appliance group of a plurality of appliances each of which has at least any one of the function modules indicated in the single scenario among the first appliance group, the single scenario and the second appliance group having been generated such that a sum of operation cost, corresponding to a utilization rate of a CPU and/or a memory of each appliance included in the first appliance group a time period when each of the one or more function modules held by each appliance included in the first appliance group is executed, does not exceed a first threshold, the sum calculated by adding, for the time period, the operation costs when each appliance included in the first appliance group executes the one or more function modules included in the execution plan and the utilization rates during a time of execution of at least any one of the function modules;
• and
• the processing circuitry, based on the single scenario, makes the second appliance group execute the function modules indicated in the single scenario.