Service identifier generation method and apparatus

Abstract

Embodiments of the present application disclose a service identifier generation method and apparatus. A service identifier generator is assigned exclusively to at least one service server of a plurality of service servers. The method comprises: a service identifier generator receiving a service identifier obtaining request message (carrying a service server identifier and a service object identifier); in response to the message, querying a current maximum service identifier value of a target service object indicated by the service object identifier, performing hash calculation on the service server identifier, and performing modulo calculation on a preset threshold by using a hash calculation value; and firstly calculating a product of a modulo calculation value and a preset step value, secondly calculating a sum of the product and the maximum service identifier value as a starting value, calculating a sum of the starting value and the preset step value as an ending value, and finally generating an initial service identifier range. According to the method and apparatus provided by the embodiments of the present application, the range of influence of the service identifier generator failure on the service can be reduced, and it can also ensure that the generated service identifier is unique.

Description

technical field [0001] This application relates to the field of computer applications, in particular to a method and device for generating service identifiers. Background technique [0002] In Internet applications, after the business server creates a business instance for each business of the client (the business instance performs business processing), it needs to assign a unique identifier (ID, Identify) to the business instance, and the ID is Business ID. In general, you can use the auto-increment primary key mode of the business database to generate a unique ID for each business instance, and then assign it to each business instance by the business server. [0003] Because the huge amount of data in the Internet environment brings huge access pressure to business databases, business databases are usually divided into databases or tables. The advantage of the sub-database is that it is easy to expand the business database horizontally (horizontally). For example, expan...

AI Technical Summary

Problems solved by technology

[0005] However, in the process of implementing the application, the inventor of the application found that at least the following problems exist in the prior art: since multiple service servers share the same centralized ID generator, once the centralized ID generator It is unavailable due to failure, and before the centralized ID generator returns to normal, all the IDs in the ID interval obtained by each business server are used up, which will cause all business servers to be unable to allocate for newly created business instances. ID, so that business processing cannot be completed

Therefore, all businesses on all business servers will be affected at the same time due to the failure of the centralized ID generator

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