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Differences between single application architecture and microservice architecture Single application architecture (a project is packaged and deployed to a server) Disadvantages: Code complexity is high, and a project may contain millions of code Difficult to update technology Low iteration frequency of project version Low scalabilit ...

Sentinel overview Sentinel: traffic guard of distributed system Sentinel takes traffic as the starting point to protect the stability of services from multiple dimensions such as traffic control, fuse degradation and system load protection. Sentinel is divided into two parts: Core library( Java Client) does not depend on any framework/L ...

  1. Preface We learned about the default storage method of the configuration center using Nacos and where the data is stored. Through consulting the materials, we learned that the data of the Nacoe configuration center and registration center are stored in the Derby embedded database by default. Obviously, the memory database is not suita ...

cloud Alibaba project Architecture evolution Monomer architecture The database and cache are shared in one program, and the deployment is simpleThe disadvantages are obvious, and the code coupling seriously affects the whole body Vertical Architecture Advantages: service, independent deployment, easy horizontal expansionDisadvantages: co ...

The project is not open source for the time being. If you need source code, please pay attention to the author's official account "AI code division", and reply to the "SpringCloud scaffold" in the official account. Create certification authority module New module Right click the parent project and click in sequence ...

Code address of this series: https://github.com/JoJoTec/spring-cloud-parent As the gateway is the entrance to all external user requests, it is very important to record the elements we need in these requests for online monitoring and business problem location. Moreover, among these elements, link information is also very important. Through t ...

What is Spring Cloud Gateway As the entrance of traffic, the common functions of gateway include routing and forwarding, permission verification, flow restriction, etc. Spring Cloud Gateway is the second-generation gateway framework officially launched by Spring Cloud, which is positioned to replace Netflix Zuul1.0. Compared with Zuul, Spr ...

The foundation of microservice architecture (MSA) is to develop a single application into a group of small independent services, which run in their own process, develop and deploy independently. The microservice in the program is to extract the commonness of each business system and make it into an independent service.   SpringCloud Al ...

MySQL LIKE clause We know that the SQL SELECT command is used to read data in MySQL, and we can use the WHERE clause in the SELECT statement to obtain the specified record.   Friends who need the framework source code can see my personal profile and contact me, Recommended distributed architecture source code.     An equal sign c ...

    Sentinel's flow control is to monitor the QPS of application traffic or the number of concurrent threads. When the specified threshold is reached, it controls the flow to avoid being overwhelmed by the instantaneous flow peak, so as to ensure high availability.     This paper analyzes the flow control algorith ...