Abstract: An information processing apparatus includes a memory, and a processor coupled to the memory and configured to classify tasks for data collection into groups, the tasks each being for a corresponding one of a plurality of devices, allocate, for each of the groups, each of first values of which an accumulated value for all of the tasks in the group is equal to a predetermined value, to each of the tasks in the group, accumulate, for each of the groups, the first value allocated to the task in a case where data that corresponds to the task is received from the device, and update states of the tasks in the group to a completed state in a case where the accumulated value for the group is equal to the predetermined value.

Abstract: A method, an apparatus and a medium storing a program for controlling information processing apparatus that manages a plurality of processing nodes each including a buffer and a processor that processes data held in the buffer is disclosed. The method includes predicting a boundary between processed data and unprocessed data in the buffer at a predicted reaching time at which a resource load of a certain processing node during data processing will reach a predetermined amount; and transferring, in reverse processing order toward the boundary, the unprocessed data to another processing node that will take over the data processing.

Abstract: A task control apparatus includes: a memory; and a processor coupled to the memory and configured to: assign, to each request for data collection, an index based on acceptance time and a delay period allowable in data collection; input the request to a queue in order of the index; extract, in a case where a transmission timing of data collection of the request is to be delayed, the request from the queue; and re-input the request to the queue by using an index based on a period for which the transmission timing is to be delayed and an extraction pace at which requests are extracted from the queue.