| 摘要 |
PROBLEM TO BE SOLVED: To provide a content distribution storage system, an evaluation value addition method, a server device, a node device and a node processing program, allowing more stable replica management by securing a proper number of replicas inside the system even when the node device storing a replica of a content imparted with a high evaluation value withdraws from the system. SOLUTION: In this content distribution storage system, when the node device withdraws from the content distribution storage system, the node device retrieves the other node device storing replica data of the same content as the replica data stored by itself, transmits addition information of evaluation value for adding all or a part of stored evaluation values to an evaluation value of the content in the other retrieved node device to the retrieved node device, confirms that the addition of the evaluation value is certainly executed in the other retrieved node device, and thereafter performs withdrawal processing from the content distribution storage system. COPYRIGHT: (C)2009,JPO&INPIT
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