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This article starts with WeChat official account of vivo Internet technology.Links: https://mp.weixin.qq.com/s/l4vuYpNRjKxQRkRTDhyg2QAuthor: Chen wangrong Distributed task scheduling framework is almost a necessary tool for every large-scale application. This paper introduces the demand background and pain points of the use of task schedu ...

Problem Description: as a rookie, in the process of learning spring boot, I want to watch the teacher's video once and knock myself to impress myself a little bit. As a result, the problem comes. @The Reference of the Reference annotation reported a null pointer exception. After more than two hours of t ...

dubbo SPI(Service Provider Interface) In essence, the fully qualified name of the interface implementation class is configured in the file, and the service loader reads the configuration file and loads the implementation class. This allows you to dynamically replace the implementation class for the interface at run time. SPI is used to de ...

Service publishing Startup process 1.ServiceConfig#export When the service provider starts the deployment, dubbo will call serviceconfig ා export to activate the service publishing process, as shown below: Java API: // 1. Create ServiceConfig instance ServiceConfig<IGreetingService> serviceConfig = new ServiceConfig<>( ...

Load balancing using Ribbon Before using Ribbon, let's think about a previous question. We registered our service provider with the eureka registry, but on the consumer side, when we still used the restTemplate call, did it write something inappropriate like http://localhost:8001?Does the application use the service name to make calls like dubb ...

Author: FserSuN Source: https://blog.csdn.net/Revivedsun/article/details/71022871 LoadBalance is responsible for selecting a specific Invoker from multiple invokers for this call to share the pressure. The LoadBalance structure in Dubbo is shown in the figure below. com.alibaba.dubbo.rpc.cluster.LoadBalance Interface provides <T> Invoke ...

SPI mechanisms have been introduced in this release, as described in previous articles on Java and Dubbo. Port: The Difference and Principle Analysis between SPI Mechanism and JDK Mechanism of Dubbo Because RPC frameworks are designed based on Spring, dependency injection issues are frequently encountered.There is also a SPI mechanism in Spring ...

Starting today, you will learn more about DUbbo.First, give a brief overview of DUbbo. Summary Dubbo is the core framework for SOA (Service Oriented Architecture) service governance solutions.Used for distributed calls with a focus on distributed governance. Simply put, it can be divided into four roles.Provider s, Consumer s, registration cent ...

1. Introduction of Invoker in Dubbo Why is Invoker the core model of Dubbo? Invoker is an entity domain in Dubbo, that is, it really exists.Other models approach it or convert it, and it also represents an executable from which invoke calls can be made.At the service provider, Invoker is used to invoke the service provider class.On the service ...

1. Preface Earlier, we talked about how services are exported to the registry.In fact, one thing Dubbo does is publish the URL of the service to the registry.Now let's talk about how the consumer subscribes to the service from the registry and makes remote calls. 2. Reference Service Time Series Diagram First, generally speaking the general int ...