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Method for selecting server to take over fault server

A technology that takes over servers and servers, applied in digital transmission systems, electrical components, transmission systems, etc., can solve the problem of large application development volume, and achieve the effect of simplifying development volume

Inactive Publication Date: 2014-04-16
无锡云捷科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] That is to say, this failover process is realized by the intervention of the user program, which has relatively large limitations:
[0013] Fifth, in order to meet the guarantee of reliability, a large amount of application development is required

Method used

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  • Method for selecting server to take over fault server
  • Method for selecting server to take over fault server
  • Method for selecting server to take over fault server

Examples

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Embodiment Construction

[0044] Reference herein to "one embodiment" or "an embodiment" refers to a particular feature, structure or characteristic that can be included in at least one implementation of the present invention. "In one embodiment" appearing in different places in this specification does not all refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0045] In the existing server-client mode, the server is determined by the DNS domain name, and the client application system must resolve the domain name by using the DNS service before accessing the server, so as to obtain the IP address of the server. After the client and server have established a connection, information can be exchanged. In the existing technology, in order to allow the client application program to have the possibility to select other servers after detecting that the server fails, a server list must be clearly provided in its application program, in...

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Abstract

The invention provides a method for selecting a server to take over a fault server. The method includes the steps that a server pool system is set up, wherein the server pool system comprises server pools, pooling devices and a client-side, and if a fault occurs to one of the servers in data exchange, the client-side enters a fault switching mode; at the moment, once the corresponding pooling device finds that the fault occurs to the server, the corresponding pooling device deletes the server from a server list kept by the pooling device and sends server updating information to the other pooling devices at the same time, and the other pooling devices delete the server from server lists kept by the pooling devices after receiving the information; the client-side conducts pool name analysis once on the pooling devices again and sends pool name analysis requests to the pooling devices, the pooling devices select the server IP which is considered to be the best for a user again according to the updated server lists kept by the pooling devices and according to the balancing strategy of the server pools, the result is returned to the user, and the process of selecting the server to take over the fault server is completed.

Description

【Technical field】 [0001] The invention relates to the field of computer network servers, in particular to the technical field of network server failover. 【Background technique】 [0002] In a typical server-client mode, the server determines its location by the DNS domain name, and the client application system must use the DNS service to resolve its domain name before accessing the server, so as to obtain the server's IP address. After the connection between the client and the server is established, information can be exchanged; if the server fails, the client application system has two possible choices: 1. Interrupt communication; 2. Select another server to continue. [0003] In this mode, the client application system must detect whether the server is interrupted by: [0004] (1) The server does not respond (time out); [0005] (2) The server responds with an error message; [0006] (3) Receive a transport layer error message; [0007] In order for the client applicat...

Claims

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Application Information

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IPC IPC(8): H04L12/24H04L29/06H04L29/12
Inventor 张焰
Owner 无锡云捷科技有限公司
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