Node device, information communication system, method for managing content data, and computer readable medium

摘要

A node device communicates with a plurality of node devices via a network. The node device includes a first obtaining unit that obtains search information for searching the content data stored in at least one node device, and a particular determination unit that applies a predetermined rule to determine whether the search information is required to be stored. A first storage unit stores the search information when required. A second obtaining unit obtains the content data from the information communication system, and a second storage unit stores the content data from the second obtaining unit. A third storage unit stores the search information corresponding to the stored content data in the second storage unit. A management unit manages the stored content in the second storage unit based on the search information stored in at least one of the first storage unit and the third storage unit.