| 摘要 |
PROBLEM TO BE SOLVED: To provide a device and method for selecting a cache server for transmitting a requested content from a plurality of cache servers, by considering capacity and a congestion situation of the whole network, and a distributed cache system.SOLUTION: A cache server selection device receives a request from a client; specifies, from among a plurality of cache servers, at least one cache server storing data corresponding to the received request; specifies, on the basis of topology information, for each of the specified cache servers, at least one bundle of paths satisfying a predetermined condition from among at least one path capable of reaching from the device to the cache server; calculates network traffic capacity of each of the specified at least one bundle of paths for each of the specified cache servers; and selects, on the basis of the calculated capacity of the bundle of the respective paths, a cache server for transmitting data to the client, from among the specified cache servers.SELECTED DRAWING: Figure 6 |
