Inventory deduction method and device

Abstract

The invention discloses an inventory deduction method and device, and relates to the technical field of computers. One specific embodiment of the method comprises the steps of determining a time difference corresponding to each transaction request according to preset starting time and receiving time of each transaction request; generating a value object sequence according to each transaction request and the time difference corresponding to each transaction request; traversing each value object of the value object sequence, and for each value object, if the current inventory of the transactionobject is greater than a preset lower limit value, generating transaction information corresponding to the value object, and then deducting the inventory of the transaction object. According to the embodiment, the priority of the user request can be accurately measured; the priority of each user request is obtained with extremely low consumption, the problem of less or more inventory deduction inan extremely high-concurrency and large-flow user panic buying scene is solved, asynchronous decoupling of high-concurrency requests is realized; the phenomena of inventory query, order storage errorreporting timeout and the like caused by overlarge database pressure are avoided, and the method is suitable for the situations of limited buying or unlimited buying.

Description

technical field [0001] The invention relates to the technical field of computers, in particular to an inventory deduction method and device. Background technique [0002] Flash sales promotions have increasingly become an important means for e-commerce companies to attract user registration and increase user activity. Before the seckill activity starts, create a seckill promotion activity through the operation background according to the product ID (ie skuID) (a seckill promotion activity corresponds to a promotion ID), including the seckill start time and end time, seckill price, seckill inventory and other information. In such a scenario of super-massive concurrent requests, whether the commodity inventory is accurately deducted is a key indicator to measure the reliable operation of the seckill system. [0003] The existing inventory deduction scheme, one is that the seckill inventory is stored in a relational database. Under high concurrent requests, the performance of ...

AI Technical Summary

Problems solved by technology

[0005] Existing solutions can’t accurately measure the priority of users’ flash sales. There is a problem of under-deduction or over-deduction of inventory. The traffic is too large, which will cause excessive pressure on the database and cause inventory query and order storage error reporting timeout, and it is only applicable to purchase restrictions.

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