Information processing device, information processing system, and access control method

An information processing system comprising:

• a management device;
• and
• a plurality of information processing devices, wherein
• the management device determines an arrangement destination of a task from among a plurality of first devices in which a same object is to be stored, of the plurality of information processing devices,
• each of the plurality of first devices stores a plurality of pieces of identification information for identifying the object, the plurality of pieces of identification information satisfying that combinations of the plurality of first devices are the same, and primary devices serving as read sources of the object among the plurality of first devices are different from one another in a case where the plurality of first devices in which the object is to be stored is specified from among the plurality of information processing devices by calculation using each of the plurality of pieces of identification information, and
• when a second device determined as the arrangement destination among the plurality of first devices specifies one piece of identification information to use the second device as the primary device from among the plurality of pieces of identification information, and executes the task arranged by control of the management device and reads the object, the second device specifies the primary device on a basis of the one piece of identification information, and reads the object stored in the specified primary device.

An access control method comprising:

• by a computer,
• referring to a memory configured to store a plurality of pieces of identification information for identifying a same object, in a case where a plurality of devices in which the object is to be stored is specified from among a plurality of computers including the computer by calculation using each of the plurality of pieces of identification information, the plurality of pieces of identification information satisfying that combinations of the plurality of devices are the same, the computer is included as one of the plurality of devices, and primary devices serving as read sources of the object among the plurality of devices are different from one another, and specifying one piece of identification information to use the computer as the primary device from among the plurality of pieces of identification information;
• and
• when executing a task arranged by control of a management device and reading the object, specifying the primary device on a basis of the one piece of identification information, and reading the object stored in the specified primary device.