The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 25, 2020
Filed:
Jul. 11, 2016
Huawei Technologies Co., Ltd., Shenzhen, CN;
Yuhu Wang, Hangzhou, CN;
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Abstract
A distributed data storage method, apparatus, and system are disclosed. After a first node receives a query request that comprises a query identifier, if first data corresponding to the query identifier is stored locally, but second data corresponding to the query identifier is not stored locally, the first node recalculates a second node configured to store the first data, and sends storage location information of the first data to the second node. The second node obtains the first data from the first node according to the storage location information after receiving a request for querying for the first data, and if the request for querying for the first data is not received subsequently, the operation of obtaining, by the second node, the first data from the first node is not triggered. In this way, network data transmission resources are reduced and storage space is saved.