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<p><img src="http://res.cloudinary.com/dxdsd8err/image/upload/c_scale,w_517/v1522740717/rabbitmq_ezbhgc.png" alt=""></p>
<p>在微服务称霸的今日，Message Broker和消息队列被各大公司广泛应用于业务解耦、可靠投递、广播等等。主流的消息队列有Kafka, ActiveMQ, RabbitMQ, RocketMQ, NSQ等等。本期主要总结一些RabbitMQ的一些基本理论和Golang的基本操作。</p>
<p>我最早接触RabbitMQ其实使用的是CloudAMQP，一套RabbitMQ云服务。云服务的好处是它帮你做好了host等工作，你只需要掌握相关API，并专注于自己的业务逻辑即可，使用非常方便。当时我使用它（同时使用的Python和Pika）的目的是，将短时间大量产生的消息，存入消息队列，等待某些服务从队列中Consume，这样一来可以解耦不同的服务，二来可以为消耗方减缓系统压力。</p>
<p>CloudAMQP是基于RabbitMQ的, 而RabbitMQ则是基于AMQP(Advanced Message Queuing Protocol)，一套由Chase银行制定和研发的国际化信息通道传递的标准。这套标准设计了关于消息队列的安全、可靠性、交互性等等一些基本特质，是消息队列的一个重要里程碑。CloudAMQP可以在之后专门再总结一下，本文还是专注于RabbitMQ和Golang。<br>
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<p>之前我们初次聊了一下<a href="https://happyisotope.herokuapp.com/golang101_routine">goroutine</a>,本文来聊聊相关的channel这个神奇的东西。channel主要用于多协程同步的情况，提供了一个交流机制，方便goroutine之间相互沟通。<br>
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<a class="post-title-link" href="/golang101_routine/" itemprop="url">Golang 101系列基础篇 - 初识Goroutine</a></h2>
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<p>本文终于来到了多线程的一个主题：Goroutine。在Golang中，Goroutine相当于是一个轻量级的线程，context switch的代价小。我们来看看Goroutine的特点和基本使用，在后期的文章和学习中，我再继续探讨更深入的内容。<br>
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