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First, let's understand what message queue MQ is? Message queuing and RocketMQ Message queuing MQ Message Queue (MQ for short) is a cross process communication mechanism, which is usually used for asynchronous data transmission between applications. MQ products are usually called "message middleware" in the architecture. Its main r ...

1, Introduction to Nacos Why Nacos The first four letters of Nacos are the first two letters of Naming and Configuration respectively, and the last s is Service What is Nacos A dynamic service discovery, configuration management and service management center that is easier to build cloud native applications Nacos: Dynamic Naming and Configura ...

background Timing tasks need to be handled in the project, and our applications will be published and run on multiple servers. In order to avoid concurrent processing leading to dirty data, we usually introduce distributed scheduling systems such as Elastic-Job or xxl-Job to process. But this requires a new system to be built, and if it's just ...

1, SpringCloud Stream In the previous article, we explained the function of config + bus to automatically refresh all service configurations. This article continues to explain the message driven Stream Last article address: https://blog.csdn.net/qq_43692950/article/details/122025347 Officially, Spring Cloud Stream is a framework for bui ...

Write in front This time, we use gRPC implementation to obtain user information 1. Installation 1.1 grpc grpc can be installed directly by go get go get google.golang.org/grpc 1.2 proto Download proto. I downloaded this. Then extract it and put the bin directory directly in the system variable 1.3 protobuf We're at the ...

Admin API Description The Admin API is a set of APIs serving Apache APIs IX. we can pass parameters to the Admin API to control the APIs IX node. For a better understanding of how it works, see architecture-design Documents in. When Apache APIs IX is started, by default, the Admin API will listen on port 9080 (port 9443 of HTTPS). You can mo ...

Spring Boot starter We know that Spring Boot greatly simplifies the initial construction and development process of the project, which are completed through the starter provided by Spring Boot. Pinda general permission system is developed based on Spring Boot, and some basic modules are starters in essence, so we need to have a comprehensive a ...

Why do I need distributed locksUser ordersLock uid to prevent repeated orders.Inventory deductionLock inventory to prevent oversold.Balance deductionLock the account to prevent concurrent operations.When sharing the same resource in a distributed system, distributed locks are often needed to ensure the consistency of change resources.Distribute ...

1. Introduction to link tracking For a large micro-service architecture system consisting of dozens or hundreds of micro-services, the following problems are frequently encountered: How to connect the whole call link in series, express location problem?How can I distill the dependencies between micro-services?How to perform performance an ...

1. Build the back-end environment of the project 1.1 construction of micro service module 1.1. 1 build parent project Create a springboot project and add it to the pom file <packaging>pom</packaging> [the external chain image transfer fails. The source station may have an anti-theft chain mechanism. It is recommended to save t ...