(19)
(11) EP 3 624 398 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
published in accordance with Art. 153(4) EPC

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
29.04.2020 Bulletin 2020/18

(43) Date of publication:
18.03.2020 Bulletin 2020/12

(21) Application number: 18900579.6

(22) Date of filing: 21.08.2018
(51) International Patent Classification (IPC): 
H04L 12/24(2006.01)
 G06F 12/0871(2016.01)
(86) International application number:
PCT/CN2018/101516
(87) International publication number:
WO 2020/015047 (23.01.2020 Gazette 2020/04)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 16.07.2018 CN 201810779131

(71) Applicant: Wangsu Science & Technology Co., Ltd.
Shanghai 200030 (CN)

(72) Inventors:
  • CHEN, Xiaowei
    Shanghai 200030 (CN)
  • ZHANG, Xu
    Shanghai 200030 (CN)
  • ZHENG, Yajuan
    Shanghai 200030 (CN)
  • YE, Li
    Shanghai 200030 (CN)

(74) Representative: Hanna Moore + Curley 
Garryard House 25/26 Earlsfort Terrace
Dublin 2, D02 PX51
Dublin 2, D02 PX51 (IE)


(56) References cited: : 
   
       


    (54) STORAGE CAPACITY EVALUATION METHOD AND APPARATUS BASED ON CDN APPLICATION


    (57) Method and device of storage capacity evaluation based on a CDN application are provided. The method includes: for any cache server corresponding to a target service, using files stored before a preset time node as old files in the cache server; determining a proportion of the old files in all files stored by the cache server and a visiting rate of the old files within a preset visit time range; determining an adjustment type of a storage capacity of the cache server according to the proportion of the old files and the visiting rate of the old files, where the adjustment type at least includes capacity to-be-expanded, capacity to-be-reduced and capacity unchanged; and determining an adjustment type of a storage capacity of the target service according to adjustment types of storage capacities of all cache servers corresponding to the target service.