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golang implements mq

In recent years, Message Queuing (MQ) has been widely used in big data, cloud computing and other fields. Message queue is an asynchronous processing method. By handing data to the message queue, the handler can process it asynchronously, which improves the performance and scalability of the system. Therefore, mastering the relevant knowledge of message queue technology has become an indispensable part of modern software architecture. This article will introduce how to use golang to write a simple MQ. 1. What is MQ? Message Queuing (MQ) is an efficient communication method and an asynchronous processing model. in message queue

May 21, 2023 pm 08:58 PM

RabbitMQ functions for PHP functions

RabbitMQ is a message queuing system used for asynchronous messaging between applications. Specifically, RabbitMQ helps applications deliver messages from one application to another, making communication between applications more reliable, flexible, and efficient. The power of RabbitMQ lies in its support for various languages and platforms. PHP is a widely used programming language that can also be used for messaging using RabbitMQ. PHP's RabbitMQ function library provides

May 18, 2023 pm 11:21 PM

函数PHP函数RabbitMQ函数

How to deal with asynchronous communication between services in microservice architecture?

With the development of Internet technology, the scale and complexity of various application systems are also increasing. The traditional monolithic application architecture is difficult to cope with the rapidly growing traffic and increasingly complex business logic. Therefore, microservice architecture has become the choice of many enterprises and developers. The microservice architecture splits a single application into multiple independent services, and realizes interaction and communication between services through their respective API interfaces. This way of dividing the application into small services not only facilitates development and deployment, but also improves overall scalability and maintainability. but

May 18, 2023 am 08:09 AM

微服务架构异步通信服务间处理

How to ensure data consistency in microservice architecture?

With the rapid development of cloud computing and big data technology, microservice architecture has become one of the important technology choices for many enterprises. It reduces the complexity of application development and maintenance by splitting applications into multiple small services. It can also support flexibility and scalability, improving application performance and availability. However, in microservices architecture, data consistency is an important challenge. Due to the independence of microservices, each service has its own local data storage, so maintaining data consistency across multiple services is a very complex task.

May 17, 2023 am 09:31 AM

微服务架构数据一致性保证

How SpringBoot integrates RabbitMQ to implement delay queue

How to ensure that messages are not lost. The rabbitmq message delivery path producer->switch->queue->consumer is generally divided into three stages. 1. The producer ensures the reliability of message delivery. 2.MQ internal messages are not lost. 3. Consumer consumption is successful. What is message delivery reliability? Simply put, it means that messages are 100% sent to the message queue. We can turn on confirmCallback. After the producer delivers the message, mq will give the producer an ack. Based on the ack, the producer can confirm whether the message is sent to mq. Turn on confirmCallback and modify the configuration file #NONE: disable the release confirmation mode, which is the default value , CORRELATED:

May 16, 2023 pm 08:31 PM

SpringBootrabbitmq

What is the method for SpringBoot to integrate message queue RabbitMQ?

Introduction In the Spring project, you can use Spring-Rabbit to operate RabbitMQ. Especially in the springboot project, you only need to introduce the corresponding amqp starter dependency. It is convenient to use RabbitTemplate to send messages and use annotations to receive messages. Generally during the development process: producer project: application.yml file configures RabbitMQ related information; write configuration classes in the producer project to create switches and queues, bind and inject RabbitTemplate objects, and send messages to the switch through RabbitTemplate objects Consumer Engineering: application.

May 16, 2023 pm 05:25 PM

SpringBootrabbitmq

How SpringBoot integrates RabbitMQ to handle dead letter queues and delay queues

Introduction to RabbitMQ messages Introduction RabbitMQ messages will not time out by default. What is a dead letter queue? What is a delay queue? Dead letter queue: DLX, the full name of Dead-Letter-Exchange, can be called a dead letter exchanger, and some people call it a dead letter mailbox. When a message becomes a dead message in a queue, it can be resent to another exchange. This exchange is DLX. The queue bound to DLX is called a dead letter queue. The following situations will cause the message to become a dead letter: the message is rejected (Basic.Reject/Basic.Nack), and the requeue parameter is set to false; the message expires; the queue

May 15, 2023 pm 03:28 PM

SpringBootrabbitmq

Several message queues in golang

As a rapidly developing programming language, Golang is increasingly favored by developers. In the development of modern cloud computing-based, distributed, and heterogeneous systems, message queues have become a very important architectural component. This article will introduce several commonly used message queues in Golang, and briefly compare their characteristics and applicable scenarios. ## 1. KafkaKafka is a distributed message queue system open sourced by Apache, and later became one of Apache's top projects. As a high-throughput, low-latency message queue, Kaf

May 15, 2023 am 11:44 AM

What is the relationship between java arrays and containers

1. Conceptual array is an efficient way to store and randomly access object reference sequences. However, when an array object is created (note the difference from object array), the size of the array is fixed. When the array space is insufficient, Create a new array and copy all references from the old array to the new array. (An array is a memory structure, and a container is a data structure) [If you know the length of the array and it will not increase in the future, then you must use the array; if the length of the array is variable or the length will increase, in order Use containers for convenience] Container classes can only hold references to objects. Arrays can be created to store primitive types directly or to store references to objects. You can use wrapper classes in containers, such as Integer

May 14, 2023 am 10:13 AM

Java

Using PHP's data caching and asynchronous processing technology in mall development

The mall is one of the popular applications in the field of e-commerce in recent years. It not only brings more convenience to consumers, but also brings more benefits to enterprises. However, in the mall development process, the application of data caching and asynchronous processing technology is essential. This article will focus on the data caching and asynchronous processing technology using PHP in mall development. 1. Data caching technology In mall development, we often encounter situations where data is frequently read and written, which will lead to a decrease in system performance and response speed. To solve this problem, we use data caching

May 14, 2023 am 08:30 AM

PHP数据缓存异步处理技术

How Springboot integrates RabbitMQ message queue

Producer project POM dependencies can be added directly when creating the project. application file because rabbitmq has a default address and user information, so if it is local rabbitmq, no configuration is required. RabbitMQ configuration file: When using related switches and queues, we need to declare the switches and queues. If there is no corresponding information, the startup project will fail. Therefore, when using springboot to integrate rabbitmq, we can use the configuration file to declare the switch and queue and bind the relationship between the two. Since Fanout mode is currently being demonstrated, FanoutExchange is used to declare the switch. Other modes

May 13, 2023 pm 10:55 PM

SpringBootrabbitmq

How to use Python Celery to dynamically add scheduled tasks

1. Background In actual work, there will be some time-consuming asynchronous tasks that require scheduled scheduling, such as sending emails, pulling data, and executing scheduled scripts. The main idea of implementing scheduling through celery is to introduce the middleman redis and start workers for task execution. celery- beat performs scheduled task data storage 2. Celery’s official documentation for dynamically adding scheduled tasks celery documentation: https://docs.celeryproject.org/en/latest/userguide/periodic-tasks.html#beat-custom-schedulerscelery custom scheduling class illustrate

May 13, 2023 pm 03:43 PM

PythonCelery

mq implemented by golang

With the rapid development of Internet technology in recent years, Message Queue (MQ) has become an extremely important component. Compared with traditional Queue, MQ has better decoupling effect and can support higher concurrency, thereby improving the reliability and scalability of the system. Among the many MQ implementations, MQ implemented by golang has attracted more and more attention and trust in the industry due to its advantages such as high efficiency, ease of use, and stability. 1. Characteristics of golang’s implementation of MQ 1. Efficiency. golang

May 13, 2023 am 09:01 AM

How SpringBoot integrates RabbitMq custom message listening container to implement message batch processing

SpringBoot integrates RabbitMq custom message listening container to implement message batch processing. Preface RabbitMQ is a commonly used message queue. SpringBoot has deeply integrated it to quickly send and receive messages. In RabbitMQ, the sending and receiving of messages are asynchronous, so a listener is needed to listen for the arrival of messages. SpringBoot provides a default listener container, but sometimes we need to customize the listener container to meet some special needs, such as obtaining data in batches. In this article, we will use SpringBoot to integrate RabbitMQ and customize a listener container to achieve batch acquisition

May 13, 2023 am 08:52 AM

SpringBootrabbitmq