Explanation of sentinel series' features, composition and deployment

1、Sentinel Characteristics of ：

① Rich application scenarios ： Breaking away from Alibaba's various e-commerce promotion , It covers almost all application scenarios ： seckill 、 Peak shaving and other scenes

② Real-time monitoring ： It provides a real-time monitoring platform , You can see the second level data of the service , The better ones can monitor 500 Cluster operation of the left and right servers

③ Support most technologies ： Open the box , such as ： Can and SpringCloud、Dubbo And so on

④ Support SPI Expansion point ： Developers can use SPI Mechanism to customize the current limiting rules , Dynamic data source adaptation and other requirements

2、Sentinel The composition of

  There are mainly two parts ：

① Core library ： Do not rely on any other framework or library , Can be in any java Running on the environment , And can communicate with springcloud、dubbo And other open source frameworks

② Console ：java Program ,jar Packages can be executed directly

3、 Sentinel Dashboard Deploy

① Go to github Download the source code directly from the official website ：GitHub - alibaba/Sentinel: A powerful flow control component enabling reliability, resilience and monitoring for microservices. ( Highly available flow control protection component for cloud native microservices )https://github.com/alibaba/Sentinel

② adopt mvn The package command builds itself

③ find sentinel-dashboard In the catalog jar Package runs directly , Then go to the link , The default login account and password are ：sentinel(1.6.0 Later versions , The login function is introduced )