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Disaster recovery method and system

A backup server and client technology, applied in the field of network communication, can solve the problems of inflexible disaster recovery methods, failure of mutual disaster recovery between server and client, etc.

Inactive Publication Date: 2014-02-05
BEIJING TELIXIN ELECTRONICS TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is to say, in the existing disaster recovery method, the server and the client are in disaster recovery separately, but mutual disaster recovery cannot be performed between the server and the client, and the disaster recovery method is inflexible

Method used

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  • Disaster recovery method and system

Examples

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no. 1 example

[0113] Based on the first embodiment of the disaster recovery system of the present invention, the primary client 30 further includes a first update module 35, and the standby client 40 further includes a second update module 45;

[0114] The first transceiver module of the primary client and / or the second transceiver module of the backup client regularly send a heartbeat detection message to the DNS backup server to detect whether the DNS backup server is in an abnormal state;

[0115] If the first transceiver module 31 of the primary client 30 and / or the second transceiver module 41 of the backup client 40 that sent the heartbeat detection message does not receive the heartbeat response of the DNS backup server within the preset time, the heartbeat detection is sent The first determining module 32 of the primary client 30 and / or the second determining module 42 of the backup client 40 of the message determines that the DNS backup server 20 is in an abnormal condition;

[0116] The ...

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Abstract

The invention discloses a disaster recovery method and system. The method comprises the steps that a main client side and / or a standby client side send / sends heartbeat detection information to a DNS main server at regular time; if the main client side and / or the standby client side sending the heartbeat detection information does not receive the heartbeat responses of the DNS main server in the preset time, the DNS main server is judged to be in the abnormal state; According to a prestored usable DNS standby server list, the main client side and / or the standby client side sending the heartbeat detection information selects a DNS standby server with the high priority, and sends service requests to the selected DNS standby server, and therefore the selected DNS standby server replaces the DNS main server which is in the abnormal state to work. According to the disaster recovery method and system, the main client side and / or the standby client side can be used for judging whether the DNS main server is in the normal state or not, the standby DNS standby server is started when the DNS main server is in the abnormal state, and mutual disaster recovery among the DNS main server, the DNS standby server, the main client side and the standby client side is achieved.

Description

Technical field [0001] The present invention relates to the field of network communication, in particular to a disaster tolerance method and system. Background technique [0002] During the processing of the network equipment (such as the interaction between the server and the client), due to various reasons, the network equipment may malfunction and cannot provide services normally. Therefore, it is necessary to add backup equipment to the network equipment for disaster recovery. In the existing disaster recovery method, if it is necessary to add a disaster recovery function to a server (such as a DNS server), an additional backup DNS server needs to be designed, that is, one DNS server is used for current operation and one DNS server is used for backup. After the running DNS server fails, start the backup DNS server through a certain strategy; if you need to add disaster tolerance to the client, you need to design an additional backup client, that is, one client is used for the...

Claims

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Application Information

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IPC IPC(8): H04L12/24H04L12/26H04L29/08
Inventor 段顺喜
Owner BEIJING TELIXIN ELECTRONICS TECH
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