| 摘要 |
A device and a method for building an efficient execution configuration for recording and reproducing data using distributed nodes. When data recording is performed distributedly at a plurality of network-connected nodes or when data recorded distributedly in nodes is collected for reproduction, a processing instruction device sets judgment data for use in judging if a node is to perform data recording or reproduction and sends a data processing request containing the judgment data that has been set and instruction data on recording target data or reproduction data, to nodes to allow the nodes to autonomously judge whether or not data processing is to be performed based on the judgment data. This configuration eliminates the need for the instruction device which issues a processing request to perform pre-processing such as selection of a specific node, thus efficiently executing data recording and reproduction using distributed nodes.
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