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Fault Recovery Method Based on Precursor Dependency

A fault recovery and precursor technology, applied in the field of system security, which can solve problems such as inability to accurately locate fault points and single checkpoints

Active Publication Date: 2018-03-06
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to propose a failure recovery method based on predecessor dependence, to solve the problems in the prior art that the failure point cannot be accurately located, a single checkpoint is set, and multiple systems with the same atomic function are repeatedly backed up

Method used

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  • Fault Recovery Method Based on Precursor Dependency
  • Fault Recovery Method Based on Precursor Dependency
  • Fault Recovery Method Based on Precursor Dependency

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Embodiment Construction

[0027] refer to figure 1 , the implementation steps of the present invention are as follows:

[0028] Step 1, construct a functional dependency tree T for the application A that needs to perform fault data recovery.

[0029] Application A that needs to perform fault data recovery includes a variety of applications that require high data disaster tolerance, such as computer cluster applications, large database applications, and cloud server applications that need to provide high-availability services. In this example, common computer cluster applications are selected Be explained.

[0030] refer to figure 2 , the specific implementation of this step is as follows:

[0031] 1a) Let application A be the root node of the functional dependency tree T, and divide it into independent functional sets F={F k |k=1,2,...,n}, and access the elements in the function set F as the child nodes of the root node to the function dependency tree T to form the function nodes of the function d...

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Abstract

The invention discloses a failure recovery method based on precursor dependence to mainly solve the problems that in an existing failure recovery technology, a failure point cannot be accurately positioned, and multi-system repeated backup atom functions are arranged with the dependence of a single detection point. According to the technical scheme, a functional dependence tree is structured for an application case needing failure data recovery; secondly, backup of the atom function of the functional dependence tree is built; thirdly, recovery processing is carried out when a root node of the functional dependence tree breaks down, an external storage device is searched for the latest full backup, the failure atom function is recovered according to the full backup, all increment backup after the latest full backup are searched for, increment recovery is carried out on the failure atom function one by one according to the sequence, and finally the root node is recovered. By means of the failure recovery method, function detailing can be carried out on an application, and targeted recovery can be carried out when a failure occurs; furthermore, a double-layer backup mode is used, the backup efficiency is improved, and the method can be used for failure data recovery of the application case.

Description

technical field [0001] The invention belongs to the technical field of system security, and particularly relates to a system failure recovery method, which can be used for application failure data recovery. Background technique [0002] In recent years, Internet technology has developed rapidly, and the most typical feature is the exponential growth of data. Whether it is a personal computer or an enterprise-level server, the content of the data stored in it is several times that of the previous one. Big data is undoubtedly for us. It brings a lot of convenience, but it also brings a hidden danger that cannot be ignored, that is, system failure recovery processing. At present, there have been many solutions for the original small amount of data storage, such as local disk backup storage, data hot backup site storage and active backup technology, etc., but these solutions have the following shortcomings: [0003] 1. Once the system fails, the fault point cannot be accurately...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/14
Inventor 庞辽军曹潮
Owner XIDIAN UNIV
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