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Data-unit-based disaster recovery method for seismic data

A data unit and disaster recovery technology, applied in the field of network security, can solve the problems of time and calculation waste, checkpoints cannot contain processing module status information, and processing module rollback recovery cannot be realized.

Inactive Publication Date: 2013-09-25
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

However, for the inside of the processing module, since there is no state preservation method for seismic data, the state information of the processing module itself cannot be included in the checkpoint, so that the rollback recovery inside the processing module cannot be realized. Therefore, after the fault occurs, there is no Each processing module after processing needs to be executed from scratch
This will undoubtedly cause a lot of time and calculation waste, which is contrary to the original intention of the checkpoint rollback recovery technology

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Embodiment Construction

[0027] The method of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] In order to facilitate the understanding of the present invention, first, the data unit, seismic data processing platform, and seismic operation processing flow are described:

[0029] An important feature of seismic data is that the data itself is uncoupled, and the data are highly independent. It can be refined into uncoupled data with various similar data units as the basic unit. For different seismic data, there are differences in data units, which can be traces, gathers, or slopes, or even the 3D data volume itself. Here we first explain the concepts of traces and gathers: a trace is the basic unit of seismic data, and the size of a trace of seismic data is related to the sampling time length and sampling interval, and its capacity generally ranges from a few KB to tens of KB; A gather refers to a collection of traces...

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Abstract

The invention discloses a data-unit-based disaster recovery method for seismic data. In the method, for the characteristics of the seismic data, data unit information in the operation processing procedure is recorded in combination with the concept of a data unit based on a checkpoint rollback recovery technology, and is stored in a checkpoint; and if a certain computing node suddenly fails to cause operation execution failure on the computing node, a before-failure state is rapidly recovered to another node from the checkpoint and each data unit is subjected to the same operation according to the data unit information which is subjected to operation processing and recorded in the checkpoint. By the method, a seismic data processing platform is not required to execute operation on a failing node from the beginning, and can continue subsequent processing from the next data unit to be processed based on the last running only according to records.

Description

technical field [0001] The invention belongs to the technical field of network security, in particular to a disaster recovery method for seismic data. Background technique [0002] Seismic data processing in the oil exploration industry has the characteristics of large data volume, intensive calculation, and complex business process. In the face of massive data such as seismic data, parallel processing is a better choice. After all, due to the large amount of data and the complex processing process, if serial processing is generally used, it will take several months, which is obviously unacceptable. . On the other hand, if a supercomputer is used for parallel processing, although it can effectively increase the speed of parallel processing, it is expensive, and for different processing modules, each parallel algorithm must be written in advance, even for different machines, or different version must rewrite the function, which is also unacceptable. The parallel processing...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/14
Inventor 赵太银高骥翔胡光岷
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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