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Responsible for the implementation of requst de-weighting, the implementation is very skillful, using the set data structure of redis. Note, however, that scheduler does not use the dupefilter key used to implement request s in this module, but uses ...

Reference resources: http://www.redis.cn/commands/eval.html https://www.runoob.com/redis/redis-scripting.html Redis has supported Lua scripting since version 2.6.0. By embedding the Lua environment in the server, Redis clients can use Lua scripts t ...

I. Basic concepts 1. Unicast: point-to-point, private chat 2. Multicast, also known as Multicast (Special Crowds): Multi-person chat, publish and subscribe 3. Broadcast (everyone): Game announcements, publishing and subscribing 2. Springboot Inte ...

Recently, the website PC-side integrated WeChat scanner login, stepped on a number of pits, and recorded the implementation process and considerations. Table of Contents 1. Operational steps of WeChat Open Platform1. Create a Web Site Application2. Get AppID and AppSecret2. Development Guidelines3. Development of Actual Warfare1. pom.xm ...

[tcp] nginx seven-tier load balancing Overview of nginx load balancing When our Web servers are directly user-oriented, they often carry a large number of concurrent requests. It is difficult for a single server to load. I use multiple Web servers to form a cluster. The front-end uses Nginx load balancing to distribute requests to our back-end ...

In the production environment, Sentinel master-slave architecture is the most widely used Redis architecture, because a single point is prone to failures, and fragmented cluster is too complex. The author tries to build a Redis cluster architecture o ...

Redission Distributed Lock brief introduction Redission is a Redis Official Network Distributed Solution Official website: https://redisson.org/ github: https://github.com/redisson/redisson#quick-start function   usedBy API   ...

1. Origin Why do you want to take the client out and write it separately? Bloggers also refer to a lot of single sign-on on the Internet, but they are basically the same and the same. In the client's own privilege checking and single exit are not p ...

Recently, the company introduced a micro-service framework, the previous redis 60G storage has been unable to meet the current 260G business needs, after some consideration to build the cluster. In order to facilitate my demonstration with a server, production environment is not recommended to do so (useless), just to record the process, as f ...

Problems encountered When developing app s or projects with separate front and back ends, sessions are different each time when using ajax and other ways to access the background, so using Shiro verification is totally impossible to pass. Originally, we used the way of token, which can realize the pro ...