US 12,443,530 B2
Data caching and reading method, and data access system
Dapeng Sun, Shanghai (CN); Tao Wang, Shanghai (CN); Shunyang Yao, Shanghai (CN); Xinxin Shu, Shanghai (CN); Kai Zheng, Shanghai (CN); Kunhui Su, Shanghai (CN); and Jiajia Li, Shanghai (CN)
Assigned to HANGZHOU ALICLOUD FEITIAN INFORMATION TECHNOLOGY CO., LTD., Hangzhou (CN)
Appl. No. 18/685,207
Filed by HANGZHOU ALICLOUD FEITIAN INFORMATION TECHNOLOGY CO., LTD., Hangzhou (CN)
PCT Filed Jan. 9, 2023, PCT No. PCT/CN2023/071177
§ 371(c)(1), (2) Date Feb. 20, 2024,
PCT Pub. No. WO2023/134604, PCT Pub. Date Jul. 20, 2023.
Claims priority of application No. 202210037805.8 (CN), filed on Jan. 13, 2022.
Prior Publication US 2024/0354251 A1, Oct. 24, 2024
Int. Cl. G06F 12/0815 (2016.01)
CPC G06F 12/0815 (2013.01) 20 Claims
OG exemplary drawing
 
1. A data caching method for a data caching system, wherein the data caching system is configured to cache target data stored in a data storage system, and the data storage system is configured to store the target data and metadata of the target data, the method comprises:
receiving a request for target data to be acquired sent by a client, the request comprising metadata of the target data stored in the data storage system, wherein the metadata of the target data is acquired by the client from the data storage system; and
determining, based on the metadata of the target data, whether data which is consistent with the target data stored in the data storage system is cached in the data caching system.