METHOD FOR STORING DATA SHARDS, APPARATUS, AND SYSTEM

This application relates to distributed storage, and in particular, to a distributed shard storage technology. In a method for storing data shards in a distributed storage system, M data nodes on which to-be-stored data will be stored are determined, N replicas of the to-be-stored data are obtained,...

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Bibliographische Detailangaben
Hauptverfasser:	Gao, Chao, Wang, Huaqiong
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY PHYSICS TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:	This application relates to distributed storage, and in particular, to a distributed shard storage technology. In a method for storing data shards in a distributed storage system, M data nodes on which to-be-stored data will be stored are determined, N replicas of the to-be-stored data are obtained, and each of the N replicas is sharded into X data shards in a same sharding mode. Then the to-be-stored data is stored on the M storage nodes, that is, N replicas of each of the X data shards are respectively stored on N storage nodes, and a quantity of data shards whose data shard replicas are stored on same N storage nodes is P or P+1, where P is an integer quotient of X divided by CMN.