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1-1 overview of message queuing 1. Queue From v 2. Message queue Message refers to the data transmitted between applications. Messages can be very simple, such as text strings and JSON, or complex, such as embedded objects. Message queue is a distributed message container that uses queue as the underlying storage data structure and ...

In this way, we have basically finished reading the Configuration class. This is a congestion model with a lot of content. Next, go back to NamesrvController. Under the Configuration class, the FileWatchService class is declared. From the outside, it should be a file reading service. Go in and have a look: org.apache.rocketmq.srvutil.File ...

Usually in the Pulsar communication group, we find that you will encounter similar problems repeatedly in the process of contacting and using Pulsar. In order to solve these "high frequency questions" more efficiently, and to thank the friends who have asked good questions, we have set up a FAQ knowledge base to collect and answer you ...

MQ MQ architecture: The Message contains: RocketMQ client coordinates: <dependency> <groupId>org.apache.rocketmq</groupId> <artifactId>rocketmq-client</artifactId> <version>4.5.2</version> </dependency> Messaging & consumption patterns Note: when the producer reports an error ...

RabbitMQ (VII) - release confirmation Release confirmation principle The producer sets the channel to confirm mode. Once the channel enters the confirm mode, all messages published on the channel will be assigned a unique ID (starting from 1). Once the message is delivered to all matching queues, the broker will send a confirmation to the pro ...

The purpose of this paper is as follows. install Let's talk about RabbitMQ installation first. It is recommended to use Docker image installation. The advantage of Docker installation is that there are few installation steps, the installation method is the same, and it is not easy to make mistakes, regardless of Windows system or Linux. You can ...

Foreword: in the last article, our program realized the broadcast of messages to all consumers. In this chapter, we will add a feature. We will only subscribe to a subset of messages. For example, we will save the message with ERROR level to disk and info Warning level logs are printed directly RabitMQ installation How to install: https:// ...

1.MQ introduction 1.1 what is MQ MQ (message queue): translated into message queue. Through the typical producer and consumer model, producers continuously produce messages to the message queue, and consumers continuously obtain messages from the queue. Because the production and consumption of messages are asynchronous, and only care abo ...

New project pom.xml <?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</mod ...

1. Document summary Source address: https://github.com/apache/rocketmq Chinese documents: https://github.com/apache/rocketmq/tree/master/docs/cn Commercial edition: https://www.aliyun.com/product/rocketmq Official website translation: http://www.itmuch.com/books/rocketmq/ FAQ: http://rocketmq.apache.org/docs/faq/ RocketMQ common managemen ...