RabbitMQ

Timestamp when message was received by RabbitMQ

两盒软妹~` 提交于 2021-01-03 06:14:45
问题 Is there a way how to get a timestamp from time, when message was received by RabbitMQ? In our application, we would like to measure how long a message was in the queue: time_in_queue=System.currentTimeMillis() - timestamp_from_msg 回答1: I updated the "rabbitmq-message-timestamp" plugin. My change was merged and it is possible to use the new header "timestamp_in_ms" which contains timestamp in milliseconds. 回答2: There's the rabbitmq_message_timestamp plugin that does that: A plugin that adds a

快速掌握RabbitMQ(一)——RabbitMQ的基本概念、安装和C#驱动

社会主义新天地 提交于 2021-01-02 15:23:10
1 RabbitMQ简介 RabbitMQ是一个由erlang开发的AMQP(Advanced Message Queue )的开源实现,官网地址: http://www.rabbitmq.com 。RabbitMQ作为一个消息代理,主要负责接收、存储和转发消息,它提供了可靠的消息机制和灵活的消息路由,并支持消息集群和分布式部署,常用于应用解耦,耗时任务队列,流量削锋等场景。本系列文章将系统介绍RabbitMQ的工作机制,代码驱动和集群配置,本篇主要介绍RabbitMQ中一些基本概念,常用的RabbitMQ Control命令,最后写一个C#驱动的简单栗子。先看一下RabbitMQ的基本结构:   上图是RabbitMQ的一个基本结构,生产者Producer和消费者Consumer都是RabbitMQ的客户端,Producer负责发送消息,Consumer负责消费消息。 接下来我们结合这张图来理解RabbitMQ的一些概念:    Broker(Server) :接受客户端连接,实现AMQP消息队列和路由功能的进程,我们可以把Broker叫做RabbitMQ服务器。    Virtual Host :一个虚拟概念,一个Virtual Host里面可以有若干个Exchange和Queue,主要用于权限控制,隔离应用。如应用程序A使用VhostA,应用程序B使用VhostB

零基础如何快速成为 Python 高手?

大憨熊 提交于 2021-01-02 11:39:23
如今学 Python 的程序员越来越多,甚至不少人会把 Python 当作第一语言 来学习。 不过尽管 Python 功能强大上手轻松,但并不代表它的学习曲线不陡峭,得来全不费工夫。 当推开 Python 的大门,你会发现 Python 入门简单但精通很难。看似语法记得滚瓜烂熟,但一进入实际项目,就被打回了原型。 比如这些问题你能第一时间想到答案吗: Python 中的协程和线程有什么区别? 生成器如何进化成协程? 并发编程中的 future 和 asyncio 有什么关系? 如何写出线程安全的高性能代码呢? 可能大部分初学者都会卡在这里。若真能解决这些问题,你就具备了成为合格 Python 工程师的必要条件。 为了系统地帮大家提升 Python 实战编程能力,迅速从初学者进阶为优秀的 Python 工程师,我联合前百度工程师开设了 《Python 核心技术与实战》 教程 。 我们不会去纠结某些生僻的知识点,而是 从实际出发,以工作中遇到的实例为主线,去讲解 Python 的核心技术和应用。 带你从基础语法起步,掌握语言的高级用法,再到项目中进行实战开发 ,让你把学到知识点通过项目都串联起来,融会贯通,形成自己的 Python 学习框架图 。 会带你从入门到进阶掌握下面 Python 核心知识点。 1.Python 基础入门 必学知识:【Python 基础数据结构】【Python

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不问归期 提交于 2020-12-31 11:03:47
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RabbitMQ Failed to declare queue and Listener is not able to get queue on server

主宰稳场 提交于 2020-12-31 08:46:38
问题 I have spring boot rabbitmq application where i have to send an Employee object to queue. Then i have set up a listener application. Do some processing on employee object and put this object in call back queue. For this, i have created below objects in my appication. Created ConnectionFactory . Created RabbitAdmin object using ConnectionFactory .. Request Queue. Callback Queue. Direct Exchange. Request Queue Binding. Callback Queue Binding. MessageConverter. RabbitTemplate object. And finally

RabbitMQ Failed to declare queue and Listener is not able to get queue on server

萝らか妹 提交于 2020-12-31 08:46:18
问题 I have spring boot rabbitmq application where i have to send an Employee object to queue. Then i have set up a listener application. Do some processing on employee object and put this object in call back queue. For this, i have created below objects in my appication. Created ConnectionFactory . Created RabbitAdmin object using ConnectionFactory .. Request Queue. Callback Queue. Direct Exchange. Request Queue Binding. Callback Queue Binding. MessageConverter. RabbitTemplate object. And finally

How to build a nonblocking Consumer when using AsyncRabbitTemplate with Request/Reply Pattern

本秂侑毒 提交于 2020-12-31 06:16:40
问题 I'm new to rabbitmq and currently trying to implement a nonblocking producer with a nonblocking consumer. I've build some test producer where I played around with typereference: @Service public class Producer { @Autowired private AsyncRabbitTemplate asyncRabbitTemplate; public <T extends RequestEvent<S>, S> RabbitConverterFuture<S> asyncSendEventAndReceive(final T event) { return asyncRabbitTemplate.convertSendAndReceiveAsType(QueueConfig.EXCHANGE_NAME, event.getRoutingKey(), event, event

How to build a nonblocking Consumer when using AsyncRabbitTemplate with Request/Reply Pattern

▼魔方 西西 提交于 2020-12-31 06:09:30
问题 I'm new to rabbitmq and currently trying to implement a nonblocking producer with a nonblocking consumer. I've build some test producer where I played around with typereference: @Service public class Producer { @Autowired private AsyncRabbitTemplate asyncRabbitTemplate; public <T extends RequestEvent<S>, S> RabbitConverterFuture<S> asyncSendEventAndReceive(final T event) { return asyncRabbitTemplate.convertSendAndReceiveAsType(QueueConfig.EXCHANGE_NAME, event.getRoutingKey(), event, event

How to build a nonblocking Consumer when using AsyncRabbitTemplate with Request/Reply Pattern

扶醉桌前 提交于 2020-12-31 06:08:51
问题 I'm new to rabbitmq and currently trying to implement a nonblocking producer with a nonblocking consumer. I've build some test producer where I played around with typereference: @Service public class Producer { @Autowired private AsyncRabbitTemplate asyncRabbitTemplate; public <T extends RequestEvent<S>, S> RabbitConverterFuture<S> asyncSendEventAndReceive(final T event) { return asyncRabbitTemplate.convertSendAndReceiveAsType(QueueConfig.EXCHANGE_NAME, event.getRoutingKey(), event, event

How to build a nonblocking Consumer when using AsyncRabbitTemplate with Request/Reply Pattern

江枫思渺然 提交于 2020-12-31 06:08:08
问题 I'm new to rabbitmq and currently trying to implement a nonblocking producer with a nonblocking consumer. I've build some test producer where I played around with typereference: @Service public class Producer { @Autowired private AsyncRabbitTemplate asyncRabbitTemplate; public <T extends RequestEvent<S>, S> RabbitConverterFuture<S> asyncSendEventAndReceive(final T event) { return asyncRabbitTemplate.convertSendAndReceiveAsType(QueueConfig.EXCHANGE_NAME, event.getRoutingKey(), event, event