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1. WO2020140622 - DISTRIBUTED STORAGE SYSTEM, STORAGE NODE DEVICE AND DATA DUPLICATE DELETION METHOD

Publication Number WO/2020/140622
Publication Date 09.07.2020
International Application No. PCT/CN2019/118009
International Filing Date 13.11.2019
IPC
G06F 16/215 2019.1
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
16Information retrieval; Database structures therefor; File system structures therefor
20of structured data, e.g. relational data
21Design, administration or maintenance of databases
215Improving data quality; Data cleansing, e.g. de-duplication, removing invalid entries or correcting typographical errors
CPC
G06F 16/215
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
16Information retrieval; Database structures therefor; File system structures therefor
20of structured data, e.g. relational data
21Design, administration or maintenance of databases
215Improving data quality; Data cleansing, e.g. de-duplication, removing invalid entries or correcting typographical errors
G06F 16/22
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
16Information retrieval; Database structures therefor; File system structures therefor
20of structured data, e.g. relational data
22Indexing; Data structures therefor; Storage structures
G06F 16/27
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
16Information retrieval; Database structures therefor; File system structures therefor
20of structured data, e.g. relational data
27Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
Applicants
  • 平安科技(深圳)有限公司 PING AN TECHNOLOGY (SHENZHEN) CO., LTD. [CN]/[CN]
Inventors
  • 宋小兵 SONG, XiaoBing
  • 姜文峰 JIANG, WenFeng
Agents
  • 深圳市沃德知识产权代理事务所(普通合伙) SHENZHEN WORLD INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP )
Priority Data
201910007367.904.01.2019CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) DISTRIBUTED STORAGE SYSTEM, STORAGE NODE DEVICE AND DATA DUPLICATE DELETION METHOD
(FR) SYSTÈME DE STOCKAGE DISTRIBUÉ, DISPOSITIF DE NŒUD DE STOCKAGE, ET PROCÉDÉ DE SUPPRESSION DE COPIE DE DONNÉES
(ZH) 分布式存储系统、存储节点设备和数据去重方法
Abstract
(EN)
The present application relates to distributed storage technology, and disclosed therein are a distributed storage system, a storage node device and a data duplicate deletion method. When the storage node device of the present application carries out data duplicate deletion, if a fingerprint having a data shard to be written is not found in a local fingerprint library, it may be directly queried in a shared fingerprint library whether said fingerprint is a duplicate fingerprint without needing to further carry out a communication query with another storage node device, thus improving the efficiency of deleting data duplicates in the distributed storage system.
(FR)
La présente invention concerne une technologie de stockage distribuée, et elle concerne un système de stockage distribué, un dispositif de nœud de stockage et un procédé de suppression de copie de données. Lorsque le dispositif de nœud de stockage de la présente invention réalise une suppression de copie de données, si une empreinte digitale qui a un fragment de données à écrire n'est pas trouvée dans une thèque d'empreintes digitales locale, elle peut faire l'objet d'interrogation directe dans une thèque d'empreintes digitales partagée si ladite empreinte est une copie d'empreinte sans avoir besoin d'effectuer en outre une interrogation de communication avec un autre dispositif de nœud de stockage, ce qui permet d'améliorer l'efficacité de suppression de copies de données dans le système de stockage distribué.
(ZH)
本申请涉及一种分布式存储技术,揭露了一种分布式存储系统、存储节点设备和数据去重方法。本申请一存储节点设备在进行数据去重时,若在本地指纹库中未查询到一待写入数据片的指纹,则可直接在共享指纹库中查询该指纹是否为重复的指纹,无需与其他存储节点设备逐一进行通信查询,因此,提高了分布式存储系统的数据去重效率。
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