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Method and system for carrying out delayed allocation on storage resources of client of cluster file system

A system client and storage resource technology, applied in the field of cluster file system storage resource allocation, can solve the problems such as the inability to effectively reduce the number of file layout service network interactions, and the inability to effectively alleviate the randomness of data access to massive small files, so as to alleviate data access. Randomness, avoiding determination difficulties, reducing the effect of mutual interference

Inactive Publication Date: 2012-11-21
INST OF COMPUTING TECH CHINESE ACAD OF SCI +1
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Problems solved by technology

[0009] The technical problem to be solved by the present invention is that in the large-scale cluster file system, the existing technology cannot effectively reduce the number of file layout service network interactions and cannot effectively alleviate the randomness of data access among massive small files. It provides a client-based Storage resource delay allocation method and allocation system to reduce the number of file layout service network interactions and alleviate the randomness of data access among massive small files

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  • Method and system for carrying out delayed allocation on storage resources of client of cluster file system
  • Method and system for carrying out delayed allocation on storage resources of client of cluster file system
  • Method and system for carrying out delayed allocation on storage resources of client of cluster file system

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Embodiment Construction

[0070] The specific embodiments of the present invention are given below, and the present invention is described in detail with reference to the accompanying drawings.

[0071] The technical problem to be solved by the present invention is that in the large-scale cluster file system, the existing technology cannot effectively reduce the number of file layout service network interactions, and cannot effectively alleviate the problem of random access to data among large numbers of small files. The storage resource delay distribution method and distribution system at the end to reduce the number of file layout service network interactions and alleviate the randomness of data access among massive small files. In addition, a method for recovering storage resources when files are deleted is provided. In addition, a method for guaranteeing the consistency of storage resources under abnormal downtime is provided to ensure the consistency of storage resources under abnormal downtime of th...

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Abstract

The invention discloses a method and a system for carrying out delayed allocation on storage resources of a client of a cluster file system. The method comprises the following steps: step 1, carrying out delayed allocation on the storage resources by a client according to the file layout operation condition; step 2, recovering the storage resources when a file is deleted and processing the recovery of the storage resources subjected to delayed allocation by the client; and step 3, maintaining the consistency of the storage resources between the client and a metadata server.

Description

Technical field [0001] The invention relates to a storage resource allocation technology of a cluster file system, in particular to a client-based storage resource delayed allocation method and system for a cluster file system. Background technique [0002] In the large-scale cluster file system, the separation of metadata and data services has become a trend. The metadata server is responsible for maintaining the global namespace of the file system, and is particularly responsible for maintaining the file layout (layout) service, managing the mapping relationship between the logical address of the file and the physical address of the disk, and allocating physical storage resources for the file. Client file data access uses the out-of-band method to directly access the storage device without going through the metadata server, thereby obtaining higher data access performance. In the process of client file data access, first obtain the logical location of the file in the global na...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04L29/06H04L12/56H04L47/722
Inventor 张军伟刘超齐颖郑彩平刘振军
Owner INST OF COMPUTING TECH CHINESE ACAD OF SCI
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