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1. Why integrate Nacos By default, Sentinel configuration rules are stored in memory. After the Sentinel service is re configured, the configuration will show that we realize the persistence of the configuration by integrating third-party middleware, such as using Nacos; To realize the bidirectional synchronous persistence of Sentinel and ...

1.1 installation of Sentinel console stay https://github.com/alibaba/Sentinel/releases Download the jar package of the console from the page and put it in a folder on the server Start the console program with the following command, - dserver Port specifies that the port is 9010. If there is a port conflict, you can specify another port java ...

1, Background By providing general capabilities such as comment publishing, likes, reports and custom comment sorting, vivo comment center helps the front desk business quickly build comment functions and provide comment operation capabilities, avoiding the repeated construction of front desk business and the problem of data island. At present ...

SpringCloudAlibaba Sentinel (flow control rules) What is Sentinel A lightweight cloud native microservice oriented traffic control component. Sentinel is mainly divided into two parts Core library: Java client, which does not depend on any framework, can run all Java runtime environments, as well as Dubbo / spring cloud and other framewor ...

prefaceWe talked about the last article How to integrate custom SPI with sentinel to realize fuse current limiting . In the process of implementing integration testing, an interesting exception Java lang.reflect. Undeclaredtowableexception. At that time, a global exception was caught in the code layer. The example is as follows@RestControllerA ...

preface The previous chapter provides a quick introduction. What you can know is: Using sentinel is mainly to define resources, configure resource rules and verify the effectiveness of configuration In sentinel, "a resource can be anything, a service, a method in a service, or even a piece of code." This article will use sentinel ...