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Hot standby method and system based on NAT technology

A technology of backup system and technology, which is applied in the hot backup method and system field based on NAT technology, can solve the problems such as the inability to realize the free switching between the main server and the backup server, and achieve the effect of realizing operation and monitoring, flexible operation and monitoring

Inactive Publication Date: 2018-06-08
北信源系统集成有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since this method can only perform hot backup at the server level, if there is a problem with the active and standby servers themselves, such as a software failure, free switching between the active and standby servers cannot be realized at this time

Method used

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  • Hot standby method and system based on NAT technology
  • Hot standby method and system based on NAT technology
  • Hot standby method and system based on NAT technology

Examples

Experimental program
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Embodiment Construction

[0044] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0045] figure 1 It is a kind of flow chart of hot standby method based on NAT technology of the present invention, as figure 1 As shown, the method flowchart includes the following steps:

[0046] Step S11: the client sends request information to the transit server;

[0047] Step S12: The transfer server forwards the request information to the corresponding server according to the monitored status of the active and standby servers;

[0048] Wherein, the transfer server can judge whether the states of the primary and secondary servers are abnormal according to monitoring ports or service states of the primary and secondary servers.

[0049] Step S13: The primary server or the standby server sends the request result to the transit server according to the received request information;

[0050] Step...

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PUM

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Abstract

The invention discloses a hot standby method based on a NAT technology. The method comprises the following steps that: a client sends request information to a transfer server; the transfer server forwards the request information to a corresponding server according to the monitored statuses of a master server and a standby server; the master server or the standby server transmits a request result to the transfer server based on the received request information; and the transfer server sends the request result to the client. In addition, the invention also discloses a system applying the hot standby method. The system comprises a transfer server, a master server and a standby server. Through adoption of the method and the system, the problem that switching between the master server and the standby server cannot be realized due to the failure of the server is solved effectively.

Description

technical field [0001] The invention relates to the computer field, in particular to a NAT-based hot backup method and system. Background technique [0002] The continuity and stability of server operation is very critical for enterprises, especially those involving communication, power, monitoring, transportation and other key facility systems. In order to ensure the high availability of the system server, two or more servers are usually used for hot standby. When the main server fails, the service can be automatically switched to the standby server. [0003] At present, the heartbeat monitoring mechanism is used for automatic switching, and the primary server and the standby server communicate and monitor each other through a dedicated heartbeat line. During normal operation, the primary server occupies system resources and provides external services, and the standby server monitors the operation of the primary server through heartbeat messages. Once the primary server f...

Claims

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Application Information

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IPC IPC(8): H04L29/12H04L1/22
CPCH04L1/22H04L61/2503
Inventor 林皓杨振江柳刚冯艳吕永勃同理
Owner 北信源系统集成有限公司