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Replica selection method and device for distributed file systems

A technology of distributed files and system copies, applied in the field of copy selection of distributed file systems, can solve the problem of lack of operation mechanism for quickly selecting the latest copy

Inactive Publication Date: 2012-08-22
INSPUR BEIJING ELECTRONICS INFORMATION IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a method and device for selecting a copy of a distributed file system, which solves the problem of lack of a mechanism for quickly selecting the latest copy for operation

Method used

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  • Replica selection method and device for distributed file systems
  • Replica selection method and device for distributed file systems
  • Replica selection method and device for distributed file systems

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Embodiment Construction

[0030] In order to improve data reliability, data redundancy can be increased by establishing multiple copies of object files in the distributed file system. When performing file read or file write operations, a mechanism is required to quickly select the latest copy from many existing copies for operation, and such a mechanism is currently lacking. The copy selection method of the present invention achieves the goal of copy selection based on the detection and update of the version number.

[0031] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0032] First, Embodiment 1 of the present invention will be described with reference to the accompanying drawings.

[0033] The embodiment of the present invention provides a method for s...

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Abstract

The invention provides a replica selection method and device for distributed file systems, and relates to the field of cloud computing, and the method and the device are used for solving the problem of lacking a mechanism for quickly selecting the latest replica to operate. The method comprises the following steps: according to the frequency of replica updating, updating the version number of a corresponding replica, wherein the more the frequency of replica updating is, the larger the version number corresponding to the replica is; and when a read operation request or a write operation request is received, returning a replica with the largest version number. According to the technical scheme provided by the invention, the method and the device provided by the invention are applicable to cloud computing systems, and an effect of quickly and efficiently obtaining the latest replica from a plurality of replicas is achieved.

Description

technical field [0001] The invention relates to the field of cloud computing, in particular to a method for selecting a copy of a distributed file system. Background technique [0002] Cloud storage is a new concept extended and developed on the basis of cloud computing. It refers to the integration and utilization of a large number of different types of storage devices in the network through technologies such as cluster applications, network technologies, and distributed file systems. A unified storage pool is formed to provide external storage services. [0003] As the core component of cloud storage, distributed file system has made great progress in recent years. How to select replicas in a distributed file system is a very important issue. In order to improve data reliability, data redundancy can be increased by establishing multiple copies of object files in the distributed file system. When performing file read or file write operations, a mechanism is required to q...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 张明富颜秉珩
Owner INSPUR BEIJING ELECTRONICS INFORMATION IND
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