Programmer Think

preface This article aims to share experience and welcome your comments Application scenario: 1. Second kill 2. Grab coupons 3. Interface idempotency check Summary: grab resources 1. Single lock -- > to distributed lock synchronized () is no longer described here 1.1. Based on opsforvalue() Setifabsent() implementation Format ...

Distributed lock - Implementation Based on Redisson aspect We have learned from the previous two articles Implementation based on Database as well as Redis based implementation We learned about the implementation of distributed locks from the database and Redis levels. In this article, we learn about distributed locks from the aspect of re ...

1, Foreword Redisson distributed interlocking RedissonMultiLock objects based on Redis can associate multiple RLock objects into an interlocking, and each RLock object instance can come from different redisson instances. Of course, this is the introduction of the official website. What is it? Let's take a look at the use and source code of int ...

Application of cache and distributed lock 1. Cache application Cache usage scenario: In order to improve the system performance, we usually put some data into the cache to speed up access, while the database only undertakes the data dropping work So what data is suitable for caching? The requirements for immediacy and data consistency are n ...