Tag：Place an order
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Time：2021-3-23
Soul torture Second kill this kind of big concurrent write scene, direct sub library sub table open dry? Is it difficult to cope with the peak traffic of second kill activity? Don’t cheat me with Taobao level second kill Characteristics of second kill activity I dare say that all the students who have done e-commerce […]
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Time：2021-2-10
We often encounter rush buying and second killing in online shopping, which is a very common application scenario. There are two main problems to be solvedHigh concurrency pressure on the database, resulting in server downtime, crash.2. How to solve the problem of inventory reduction (oversold) under the condition of competitionFor the first problem, it’s easy […]
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Time：2021-1-26
Sometimes life is a smooth wilderness, sometimes it is a ups and downs of the mausoleum, but as long as you love it, you can cross the mountains and rivers of the world. In the previous business, Kafka and rabbitmq message queues were used. This article will make a summary. Message queue middleware is an […]
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Time：2020-11-26
Tips: This article has been added to the reading list of series articles. You can click to see more related articles. preface The construction of Ocelot + consult has been completed in the previous article (5) – Ocelot API gateway (2) of. Net core microservices introduction. This article briefly introduces the eventbus. Eventbus – event […]
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Time：2020-11-23
Reading guide of Ali Mei:Serverless (no service architecture) is known as the next generation of cloud computing. Since the concept was introduced, it has become very popular in the industry because it can bring about the improvement of R & D delivery speed and the reduction of cost. The idle fish client is based on […]
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Time：2020-11-18
Soul torture Second kill this kind of large concurrent writing scene, directly sub database sub meter open dry? Is it hard to deal with the traffic peak of seckill? Don’t fool me with Taobao level seconds Characteristics of seckilling activities I dare say that all the students who have done e-commerce will encounter the “high […]
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Time：2020-10-27
Introduction to pessimistic lock (Encyclopedia) Pessimistic lock, as its name implies, is a conservative attitude towards the modification of data by the outside world (including other current transactions of the system, as well as transactions from external systems). Therefore, during the whole data processing process, the data is locked. The implementation of pessimistic lock often […]
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Time：2020-10-22
Create a new customer discount group under the price Settings > discount > customer discount groups menu in backoffice. This is just a place holder to store the specific discount information created later Maintain a discount record in discount. The discount is 20% and the ID is jerrydishcount_ 20: There is also a way and […]
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Time：2020-10-18
1、 Preface This paper is a summary of the author’s technical scheme for issuing red packets to newcomers in 1688. The paper “spending money wisely: online electronic coupon allocation based on real time user intent detection” has been accepted by cikm2020. Welcome to exchange and correct! About the author Li Liangwei: Alibaba Algorithm Engineer, email […]
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Time：2020-10-8
preface Before that, I had a private letter from my partner asking me about the order and inventory processing plan under the high concurrency scenario. Recently, I was busy because of overtime, so I didn’t have time to reply. Today, I had a hard time to think about it. I’d better write an article to […]
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Time：2020-10-7
preface We all know that Alipay payment and WeChat payment can only be restricted to their own platforms. WeChat’s Alipay payment is simply not available. Even if the official account is paid, it is necessary to jump to external browsers to arouse Alipay payment. And QQ browser raises the payment of Alipay. There are still […]
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Time：2020-9-30
Seckill background implementation This paper mainly explains how to solve the following problems in the actual combat of the project 1) Realize the asynchronous order of the second kill, master how to ensure that the producer consumer message is not lost 2) To prevent malicious swiping 3) To prevent the same product from repeated second […]
