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Distributed file system node selection method

A technology of distributed files and system nodes, applied in the field of distributed computing, can solve problems such as unstable data transmission quality

Active Publication Date: 2020-03-13
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

[0003] Based on this, it is necessary to provide a distributed file system node selection method for the problem of unstable data transmission quality between the system and users in the dynamic network of the existing distributed file system

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  • Distributed file system node selection method

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Embodiment Construction

[0016] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0017] Distributed File System (Distributed File System) means that the physical storage resources managed by the file system are not necessarily directly connected to the local node, but are connected to the node through a computer network. The design of the distributed file system is based on the client / server model, and generally consists of the main server layer, node server layer and node layer, such as figure 1 As shown, the client sends a request to the main server (including file name, user information, etc.), the main server makes a reply (passes information) and records the corresponding task in the task table, and the node server obtains the main server task and selects the corresponding task. Nodes respond to requests from clients.

[0018] Among them, the main server (master): in the first layer of th...

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Abstract

The invention relates to a distributed file system node selection method, which belongs to the field of distributed computing technology. The distributed file system node selection method and the server divide time into time segments and expect the average speed of data transmission between node clusters and regional users. The calculation can determine the node cluster with the best data transmission quality between the current user and the user to be responded, so that the node server in the node cluster can select a node under it to respond to the request instruction of the user to be responded to, and provide high-quality data for the user to be responded to Efficient data service, the distributed file system node selection method makes the distributed file system change from the traditional node random selection method to the dynamic node selection method that changes with the change of the network environment, and improves the relationship between the distributed file system and users. The high data transmission efficiency ensures the quality of data interaction between the system and users, and further improves the service quality of the distributed file system.

Description

technical field [0001] The invention relates to the technical field of distributed computing, in particular to a node selection method of a distributed file system. Background technique [0002] The network model of large-scale distributed virtual environment is mainly divided into three types: distributed, centralized and hierarchical structure. The distributed network model can also be called a node-adaptive network model. There is no node server in the network system, and the local nodes are responsible for data storage and network communication. For example, NPSNET, DIVE, etc. adopt an adaptive structure. The main The advantage is that the real-time performance of the entire network system is guaranteed, and the disadvantage is that it is difficult to guarantee the consistency of system updates when the virtual environment changes or expands; the centralized network model has node servers, and each node sends tasks to the node server. It is distributed uniformly after c...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08
CPCH04L67/10H04L67/1029H04L67/1095
Inventor 胡长虹薛旭成刘海龙黄良韩诚山
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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