System, method of controlling a system including a load balancer and a plurality of apparatuses, and apparatus

A method of controlling a system including a load balancer and a plurality of information processing apparatuses, the method comprising:

• selecting, from among the plurality of information processing apparatuses, one or more first information processing apparatuses as each processing node for processing data distributed by the load balancer;
• selecting, from among the plurality of information processing apparatuses, one or more second information processing apparatuses as each inputting and outputting node for inputting and outputting data processed by the each processing node;
• collecting load information from the one or more first information processing apparatuses and the one or more second information processing apparatuses;
• changing a number of the one or more first information processing apparatuses or a number of the one or more second information processing apparatuses based on the load information, data being distributed to the changed one or more first processing apparatuses based on the changing by the load balancer when the number of the one or more first information processing apparatuses is changed;
• and
• setting one or more third information processing apparatuses not selected as the processing node and the inputting and outputting node from among the plurality of information processing apparatuses based on the changing into a deactivated state.

An apparatus configured to control a system including a load balancer and a plurality of information processing apparatuses, the apparatus comprising:

• a memory;
• and
• a processor coupled to the memory and configured to execute a process including:
• selecting, from among the plurality of information processing apparatuses, one or more first information processing apparatuses as each processing node for processing data distributed by the load balancer,
• selecting, from among the plurality of information processing apparatuses, one or more second information processing apparatuses as each inputting and outputting node for inputting and outputting data processed by the each processing node,
• collecting load information from the one or more first information processing apparatuses and the one or more second information processing apparatuses,
• changing a number of the one or more first information processing apparatuses or a number of the one or more second information processing apparatuses based on the load information, data being distributed to the changed one or more first processing apparatuses based on the changing by the load balancer when the number of the one or more first information processing apparatuses is changed, and
• setting one or more third information processing apparatuses not selected as the processing node and the inputting and outputting node from among the plurality of information processing apparatuses based on the changing into a deactivated state.