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A method for unified namespace management for distributed file system

A distributed file and namespace technology, applied in the direction of file system, file access structure, file/folder operation, etc., can solve the problems of scattered mount table, degradation of metadata access performance, difficult to manage, etc., to reduce performance impact , reduce the size, and avoid the effect of visiting

Active Publication Date: 2022-04-26
NANJING UNIV
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Problems solved by technology

[0006] Purpose of the invention: Aiming at the problems and deficiencies in the above-mentioned prior art, the purpose of the invention is to provide a method for unified namespace management oriented to a distributed file system, which solves the problem that the mount table in the existing system is scattered and difficult to manage, and introduces Problems such as metadata access performance degradation after unified namespace

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  • A method for unified namespace management for distributed file system
  • A method for unified namespace management for distributed file system

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Embodiment Construction

[0021] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.

[0022] Such as figure 1 As shown, the present invention introduces a server process to store the first mount table, the first mount table saves the global mount information, the client saves a third mount table, and the third mount table only keeps the current For the mounting information required by the user, the client completes the conversion from the unified namespace URI to the underlying distributed file system URI through the third mounting table. The server-side...

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Abstract

The invention discloses a unified namespace management method oriented to a distributed file system. table, the server-side mount table supports dynamic addition and deletion of mount table entries, and the client periodically obtains the updated mount table from the server through the heartbeat thread. The invention solves the problems that the mounting table is scattered and difficult to manage in the existing system, and the access performance of the metadata is severely degraded after the unified name space is introduced.

Description

technical field [0001] The invention relates to the field of distributed storage, in particular to a method for managing a unified namespace for a distributed file system, and in particular to a method for providing a unified namespace to an upper layer when there are multiple distributed file systems at the bottom layer. Background technique [0002] In the big data ecological environment, the distributed file system supports the big data computing framework and structured storage system running on the upper layer, and is an important part of the big data software stack. On the one hand, the growth of massive data makes the data often stored in multiple distributed file systems, forming multiple independent namespaces. On the other hand, distributed file systems generally adopt a master-slave architecture. Metadata is stored in the memory of the master node, and the metadata capacity of the system is limited. A common horizontal expansion solution is to increase the number ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/16G06F16/182G06F16/178G06F16/13
Inventor 顾荣黄志袁春风黄宜华
Owner NANJING UNIV
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