Main and standby service switching method and device based on cold standby mode, equipment and medium

Abstract

The invention relates to the technical field of computers, and provides a main and standby service switching method and device based on a cold standby mode, equipment and a storage medium. The method comprises the following steps: judging whether a main host in a main host group works normally or not based on a polling rule or an index value of the main host, and when the main host is judged to work abnormally, judging whether the main host in the main host group works abnormally or not based on a predetermined mapping relationship between an IP address of the main host and an application directory path of a standby host; obtaining a directory path of an application of a standby host corresponding to the IP address of the main host; and automatically starting the application of the standby host based on the application directory path of the standby host corresponding to the IP address of the main host and the pre-configured script. According to the invention, the switching efficiency of the main and standby services can be improved. The invention further relates to the technical field of block chains. The polling rule can be stored in a node of a block chain.

Description

technical field [0001] The present invention relates to the field of computer technology, in particular to a method, device, equipment and storage medium for switching between active and standby services based on a cold standby mode. Background technique [0002] The cold standby mode of the application refers to two or two groups of hosts, one or one of which is used as the main host to run the application, and one or a group of which is used as the backup host to keep the power on but not to run the application. In this way, once the active host fails or goes down, start the application corresponding to the standby host to continue to provide services instead of the active host. Since this solution usually requires manual switching, it cannot be switched to the standby host in time when the active host fails. [0003] In the prior art, although there are two hosts that can automatically switch each other as active and standby, that is, when the data in any one host changes...

AI Technical Summary

Problems solved by technology

However, since there are two primary devices in this solution, the two hosts need to be distinguished on the business layer. Otherwise, the random selection of the primary device by the business will cause large-scale primary key conflicts. Therefore, the implementation of this solution is extremely complicated and the system availability not tall

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