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Distributed file system and garbage data cleaning method thereof

A distributed file and garbage cleaning technology, which is applied in the field of distributed file system and its garbage data cleaning, can solve problems such as error-prone, poor support for failure, and affect system performance, and achieve the effect of improving reliability

Inactive Publication Date: 2012-07-04
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention is proposed for the problems of time-consuming, affecting system performance, poor support for failure, and error-prone problems. Therefore, the main purpose of the present invention is to provide a distributed file system and its garbage data cleaning method to solve At least one of the above questions

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  • Distributed file system and garbage data cleaning method thereof
  • Distributed file system and garbage data cleaning method thereof
  • Distributed file system and garbage data cleaning method thereof

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Embodiment Construction

[0037] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. 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 with each other.

[0038] method embodiment

[0039] According to an embodiment of the present invention, a garbage data cleaning method of a distributed file system is provided.

[0040] Such as figure 1 As shown, the method includes the following steps S102 to S106:

[0041] Step S102, the file access server reports the data block information corresponding to the data block it manages to the garbage cleaning module according to the garbage cleaning request message sent by the garbage cleaning module;

[0042] Step S104, the garbage cleaning module queries whether the data block information exists in the metadata server;

[0043] Step S106, if the data block information does not exist, the garbage cleaning module ...

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Abstract

The invention discloses a distributed file system and a garbage data cleaning method thereof. The method comprises the following steps: according to a garbage cleaning request message sent by a garbage cleaning module, submitting corresponding data block information of a managed data block to the garbage cleaning module by a file access server; querying whether the data block information exists in a metadata server of not by the garbage cleaning module; and informing the file access server to delete the corresponding data block of the data block information by the garbage cleaning module if the data block information does not exist. The invention simplifies the flows of a deletion operation, greatly shortens the response time of the deletion operation, improves the reliability of the deletion operation and ensures the true deletion of practical data, thereby ensuring the in-time release of system space. The invention greatly reduces the influence of a plurality of deletion operations on the system performance.

Description

technical field [0001] The invention relates to the communication field, in particular to a distributed file system and a garbage data cleaning method thereof. Background technique [0002] In the distributed file system, especially when using the distributed file system to store the film source in the IPTV (Internet Protocol Television, Internet TV) system, or the data in the CDN (Content Delivery Network, content distribution network) system, along with As time goes by, the amount of data in the system will increase. No matter how large the system capacity is, it will still be full of massive data. Therefore, existing systems generally have an aging mechanism to periodically age unnecessary files or files with relatively low access frequency. Aging generally corresponds to a deletion operation in a distributed file system. In a centralized file system or a traditional distributed file system, the delete operation is real-time, that is, the metadata and actual data of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/30
Inventor 彭杰夏舰波
Owner ZTE CORP
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