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A data version processing method and system

A processing method and data technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of the system not working normally, the version number is not very accurate, and affect the system function, so as to facilitate the correctness and improve the Correctness, guarantee the effect of system function

Active Publication Date: 2017-05-31
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In a distributed storage system, multiple storage nodes are distributed on different machines. When each storage node processes the version of the data in the data file, it mostly uses time as the version number. However, the time of each storage node cannot be guaranteed to be absolute. , so the version number is not very accurate
If the version number of the common data file is inaccurate, the queried data will be wrong. However, if the version number of the metadata is inaccurate, it will seriously affect the system function and may cause the system to fail to work normally.

Method used

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  • A data version processing method and system

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Embodiment Construction

[0039] The basic idea of ​​the present invention is: start to restore data, read the redolog (redolog) file, obtain the data time in the redolog file and the data file timestamp; compare the data file timestamp and the data time in the redolog file, if both If it is a time deficit, and the deficit time does not exceed the tolerance parameter, or both are time surplus, restore the data.

[0040] The present invention will be described in detail below through specific embodiments and accompanying drawings.

[0041] A data versioning method such as figure 1 As shown, the specific steps are as follows:

[0042] Step 101, start data recovery, read the redolog file, obtain the data time and the data file timestamp in the redolog file; the redolog file is saved to the storage space by the storage node, including: the data of the distributed storage system, the data version, and It is the time when the data is operated on; the distributed storage system first saves the data to the r...

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Abstract

The invention discloses a method for processing a data version, and the method comprises the following steps of beginning to recover data, reading a redolog file, and acquiring data time and data file timestamp in the redolog file; recovering the data in the redolog file if the timestamp of the data file is in adverse balance with the data time in the redolog file and the adverse balance time does not exceed a tolerant parameter or the timestamp of the data file is in favorable balance with the data time in the redolog file; and refusing to recover the data if the timestamp of the data file is in adverse balance with the data time in the redolog file and the adverse balance time exceeds the tolerant parameter. The invention also discloses a system for processing the data version. By adopting the method and the system, accuracy for updating the data, inquiring the data and loading the data version of a data file can be improved.

Description

technical field [0001] The invention relates to the field of data storage, in particular to a data version processing method and system. Background technique [0002] With the gradual maturity of 3G networks, the development of cloud computing and the Internet of Things, the telecommunications system is also facing transformation and greater challenges. At present, telecom systems pay more attention to performance in terms of high availability, easy scalability, and massive storage. The requirement for high availability is that in the infrastructure, storage and servers coexist. Once the server fails, users can normally access the stored data, that is, the server is required to ensure that the data in the storage system is available in the event of a failure; in addition, the system is required to run It has strong fault tolerance to maintain high reliability. The requirement for easy scalability is to be able to automatically or simply manually configure the addition and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/30
Inventor 余正林沈蓓洁常二鹏
Owner ZTE CORP