Method for quickly copying cluster data in database

A data replication and database technology, applied in the computer field, can solve problems such as unfavorable technological development and difficulties for IT personnel to solve, and achieve the effects of fast replication, ensuring work efficiency, and ensuring consistency

Active Publication Date: 2012-09-19
LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] Due to the above-mentioned technical deficiencies, it is difficult for IT personnel to solve the above-mentioned problems they face, resulting in a bottleneck that is not conducive to the continued development of technology

Method used

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  • Method for quickly copying cluster data in database
  • Method for quickly copying cluster data in database
  • Method for quickly copying cluster data in database

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Embodiment Construction

[0030] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0031] The following examples are only used to illustrate and explain the present invention, but not to limit the technical solution of the present invention.

[0032] High performance cluster (HPC), which uses multiple machines in a cluster to jointly complete the same task, so that the speed and reliability of task completion are much higher than that of a single machine. Make up for the lack of stand-alone performance. This cluster is widely used in environments with large amounts of data and complex calculations, such as weather forecasting and environmental monitoring.

[0033] Load balance cluster (Load balance cluster, LBC), which uses multiple stand-alone machines in a cluster to complete many parallel small jobs. In general, if an application is used by many people, the response time of user requests wil...

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Abstract

The invention provides a method for quickly copying cluster data in a database. According to the method, from a data copying theory of synchronizing and then processing, the atomicity and the inseparability of the database are introduced; a cluster database management device is used for separating different requests submitted by a user into structured query language (SQL) sentences of data atoms and transmitting the SQL sentences to respective servers in a cluster for executing the SQL sentences; and a final execution result is fed back to the user, so that the consistency of the data of each database server in the database cluster is ensured, and the working efficiency of the whole cluster is guaranteed. The requests submitted by the user are classified according to the atomicity and the inseparability of the database, firstly synchronized to the servers in each cluster, processed and executed by free servers in the cluster and fed back to the user, so that the data of each database server can be quickly synchronized; and therefore, the data in the cluster can be quickly copied and the servers can be efficiently managed.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a method for rapidly duplicating database cluster data. Background technique [0002] After a long period of operation, the information technology (IT, Information Technology) system combines multiple servers to form a cluster to achieve a technology whose comprehensive performance is better than that of a single large server, so the database cluster technology has emerged, which can not only meet the needs of applications , and greatly save investment costs. However, since the scale of the data set cluster is composed of multiple servers, the database cluster technology is faced with problems similar to the following [0003] (1) How to realize data synchronization between multiple database servers in the cluster [0004] A database cluster uses multiple database servers to form a cluster to provide external services. From the outside, it seems that a database server is prov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 徐国强
Owner LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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