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Database dual-computer backup method and system

A dual-machine backup and database technology, applied in the field of communications, can solve the problems of database service interruption, incomplete synchronization, and complicated implementation process, and achieve the effect of simplifying the process and ensuring normal operation.

Inactive Publication Date: 2016-03-09
INSPUR BEIJING ELECTRONICS INFORMATION IND
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Problems solved by technology

[0003] However, the above-mentioned method of using the operation log recorded by the master to realize the dual-machine backup of the database needs to ensure that the operation log stored in the backup machine is completely synchronized with the operation log recorded by the master in real time, so its implementation process is relatively complicated. During the shutdown process, the operation logs recorded by the master computer have not been stored in the backup server synchronously, so that the operation logs stored in the backup server are not completely synchronized with the operation logs recorded by the master server, which may easily lead to interruption of database services.

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[0015] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0016] The steps shown in the flowcharts of the figures may be performed in a computer system, such as a set of computer-executable instructions. Also, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0017] High Availability (HA, High Availability) cluster system is a server cluster technology used to reduce service interruption time, which can protect users' business programs from providing uninterrupted external services. Wherein, the cluster refers...

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Abstract

The present invention discloses a database dual-computer backup method and system. The method comprises: a distributed replicated block device (DBRD) replicating database information on a host computer onto a standby computer in real time; and when detecting that a state of the host computer has a failure, a cluster resource manager stopping a database process on the host computer and starting a database process according to the database information stored by the standby computer. By means of the technical scheme provided by the present invention, the process of database dual-computer backup is simplified, and normal running of the database service is ensured.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a database dual-machine backup method and system. Background technique [0002] Currently, the Oracle database system is widely used in the database field. The Oracle database system has the function of database dual-machine backup, that is, data synchronization, that is, by synchronously storing the operation logs recorded by the main machine in real time and the mirror file of the main machine database to the standby machine, so as to realize the operation of the main machine in the event of a network or hardware failure on the main machine. Switch to the standby machine to ensure the normal operation of the database business. [0003] However, the above-mentioned method of using the operation log recorded by the master to realize the dual-machine backup of the database needs to ensure that the operation log stored in the backup machine is completely synchronized with th...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/14G06F17/30
CPCG06F11/1448G06F11/1464G06F16/27
Inventor 初贤哲李勋堂杨磊张远斌
Owner INSPUR BEIJING ELECTRONICS INFORMATION IND