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Dynamic Balanced Account Mapping Method Based on Distributed Hash

A distributed hashing and dynamic balancing technology, applied in the computer field, can solve the problem that the CNGrid account mapping does not consider the spatial locality problem, does not support the mutual active and standby mode of the mapping nodes, and achieves short average running time and guarantees balance , to ensure a globally consistent effect

Active Publication Date: 2020-11-03
BEIHANG UNIV
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Problems solved by technology

CNGrid account mapping does not consider spatial locality, and does not involve account mapping across supercomputing centers. It does not support the multi-master and multi-slave mutual master-backup mode of mapping nodes. Factors such as storage space and geographical location affect grid accounts. The effect of mapping is also not taken into account

Method used

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  • Dynamic Balanced Account Mapping Method Based on Distributed Hash
  • Dynamic Balanced Account Mapping Method Based on Distributed Hash
  • Dynamic Balanced Account Mapping Method Based on Distributed Hash

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Embodiment Construction

[0050] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0051] When virtual data space users access resources, they must access local storage resources through an account in the local storage cluster of the high-performance computing environment. All operations on storage resources must be completed by switching the virtual data space account to a local account.

[0052] The main scenarios involved in account mapping are divided into two aspects. First, when a user registers a virtual data space account, the system needs to map the newly registered virtual data space account to a local account in the cross-domain high-performance computing environment, and record the mapping relationship so that Access storage resources when the user logs in later. The second is that when the system creates a temporary copy for the user in a different place, it needs to temporarily map the user's virtual data space account to the ...

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Abstract

The invention provides a dynamic equilibrium account mapping method based on distributed hash, and aims to research a dynamic and equilibrium account mapping model aiming at the problem of mutual mapping between accounts under a cross-domain condition, realize dynamic equilibrium universal account mapping in a wide-area environment and ensure normal access of a user to resources. The method comprises the following steps: firstly, collecting information of four balance influence factors including a geographic position, network time delay, a space margin and an account margin; carrying out normalization processing on the collected data and avoiding the influence of value difference; secondly, constructing an optimal sequence comparison table; setting a weight for each factor; calculating a final evaluation score of each supercomputing node according to the weight and the value of each factor; and mapping the supercomputing node to a hash space according to the evaluation score ratio, then mapping the virtual data space account by adopting the same hash algorithm, establishing a mapping relationship with a local account in a first supercomputing node account pool in the clockwise direction, and mapping the virtual data space account to a supercomputing physical node account in a cross-domain environment.

Description

Technical field: [0001] The invention discloses a dynamic balanced account mapping method based on distributed hash, relates to the challenges faced by wide-area high-performance computing, and belongs to the field of computer technology. Background technique: [0002] Currently, storage resources in a cross-domain high-performance computing environment are widely dispersed and isolated and autonomous. Large-scale computing applications urgently need a virtual data space that can support cross-domain unified access. The key to solving the problem of cross-domain unified access is to adopt a reasonable account mapping technology. In this regard, many scholars and institutions have conducted a lot of research and practice. The current representative account mapping results are SAMBA account mapping, EGI account mapping and CNGrid Account mapping. [0003] Samba is a software based on the SMB protocol, which consists of client and server programs and is implemented on Linux an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08
CPCH04L67/1021H04L67/1057H04L67/1065H04L67/1074H04L67/1095
Inventor 肖利民刘丙骑秦广军霍志胜韦冰宋尧
Owner BEIHANG UNIV
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