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Data update method and device for distributed file system

A distributed file and data update technology, applied in the computer field, can solve problems such as difficult to guarantee consistency, high cost, and low performance, and achieve the effect of data consistency, high performance, and no occupation of computing resources

Active Publication Date: 2019-07-23
ALIBABA GRP HLDG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The main purpose of this application is to provide a method and device for updating data in a distributed file system, so as to overcome the problems of high cost, low performance, and difficulty in ensuring consistency caused by data updating in distributed file systems in the prior art.

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  • Data update method and device for distributed file system

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Embodiment Construction

[0031] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0032] According to an embodiment of the present application, a method for updating data in a distributed file system is provided.

[0033] This application is based on a distributed file system, refer to figure 1 , the distributed file system is composed of at least one master control node (or called control node), at least one client and multiple s...

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Abstract

A data update method and device in a distributed file system. The method comprises: acquiring update data, writing the update data to a tail portion of a current data node, and updating corresponding index information in the data node (S402); and writing the update data to a tail portion of a check node, and updating corresponding index information in the check node (S404). The present invention achieves the effects of high performance, less computational resource occupation and data consistency for a data update process in a distributed file system.

Description

technical field [0001] The present application relates to the field of computer technology, in particular to a method and device for updating data in a distributed file system. Background technique [0002] With the continuous development of the Internet, the data on the Internet has grown explosively. The cost is also getting higher and higher. Many distributed file systems use the Erasure Code algorithm to encode data to reduce costs. There are many problems in the application of the Erasure Code update algorithm in the distributed file system, which cannot be applied in the production environment, but business implementation is inseparable from the file update operation, so how to solve the problems caused by the Erasure Code update algorithm is becoming more and more more pressing. [0003] Assuming that the parameters of the Erasure Code encoding are: the data node is M, and the checkpoint is N, then the disadvantages of the prior art algorithm are: [0004] (1) Low...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/182G06F16/178
CPCG06F16/00
Inventor 段兵
Owner ALIBABA GRP HLDG LTD