Dispersion device and dispersion method

专利名称：Dispersion device and dispersion method发明人：山田 剛史申请号：JP2017033503申请日：20170224公开号：JP6646340B2公开日：20200214

摘要：PROBLEM TO BE SOLVED: To provide an efficient distributed DB system whichcopes with temporal variation in population of a community with which users areaffiliated.SOLUTION: In a distributed database DB system where data of a plurality ofusers affiliated with communities is distributed to and stored in a plurality of DBs on acommunity-by-community basis, a calculation unit 15a calculates an amount of trafficoriginating from each of the communities at each time point by using a population of thecommunity and an average value of a traffic amount per user at a plurality of prescribedtime points, and a totalization unit 15b totalizes, with respect to each of DBs, amounts oftraffic originating at each time point from communities corresponding to data stored ineach DB, and a change unit 15c changes a storage destination of data contributing to anextreme value of temporal variation in a traffic amount in the DB, to another DB if a valueindicative of variation in a totalized traffic amount at each time point is larger than aprescribed threshold in the DB.SELECTED DRAWING: Figure 5

申请人：日本電信電話株式会社

地址：東京都千代田区大手町一丁目５番１号

国籍：JP

代理人：特許業務法人酒井国際特許事務所

更多信息请下载全文后查看