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<meta property="og:description" content="集群特点 RabbitMQ节点不完全拷贝。所以其他非所有者节点只知道队列的元数据,和指向该队列节点的指针。 集群节点类型 内存节点 磁盘节点 如果集群只有一个磁盘节点,当该节点宕机时,集群仍然运行,但是不能创建Queue,Exchange,Binding, 也不能增加用户,更改权限,集群节点删除和增加也不行。因此为了集群的健壮,应两个磁盘节点。 基于Docker测试集群部署 Docker是现在很流行的容器化技术,它部署方便,资源消耗小。Docker的学习可以查看Docker从入门到实践 首先获取RabbitMQ镜像 docker pull rabbitmq:3-management 利用刚刚获取的镜像启动三个RabbitMQ容器。用docker ps查看是否启动成功。 docker run -d --hostname rabbit1 --name rabbitmq-cluster1 -p 15672:15672 -p 5672:5672 -e RABBITMQ_ERLANG_COOKIE='rabbitcookie …" />
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<meta name="twitter:description" content="集群特点 RabbitMQ节点不完全拷贝。所以其他非所有者节点只知道队列的元数据,和指向该队列节点的指针。 集群节点类型 内存节点 磁盘节点 如果集群只有一个磁盘节点,当该节点宕机时,集群仍然运行,但是不能创建Queue,Exchange,Binding, 也不能增加用户,更改权限,集群节点删除和增加也不行。因此为了集群的健壮,应两个磁盘节点。 基于Docker测试集群部署 Docker是现在很流行的容器化技术,它部署方便,资源消耗小。Docker的学习可以查看Docker从入门到实践 首先获取RabbitMQ镜像 docker pull rabbitmq:3-management 利用刚刚获取的镜像启动三个RabbitMQ容器。用docker ps查看是否启动成功。 docker run -d --hostname rabbit1 --name rabbitmq-cluster1 -p 15672:15672 -p 5672:5672 -e RABBITMQ_ERLANG_COOKIE='rabbitcookie …">
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<h1>
<a href="./rabbitmqxi-lie-di-san-pian.html">
RabbitMQ系列第三篇
<small class="subtitle">
分布式部署
</small>
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</h1>
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<h4>集群特点</h4>
<p>RabbitMQ节点不完全拷贝。所以其他非所有者节点只知道队列的元数据,和指向该队列节点的指针。</p>
<p><img alt="集群特点" src="./images/rabbitmq-cluster-feature.png"></p>
<h4>集群节点类型</h4>
<ul>
<li>内存节点</li>
<li>磁盘节点</li>
</ul>
<p>如果集群只有一个磁盘节点,当该节点宕机时,集群仍然运行,但是不能创建Queue,Exchange,Binding,
也不能增加用户,更改权限,集群节点删除和增加也不行。因此为了集群的健壮,应两个磁盘节点。</p>
<h4>基于Docker测试集群部署</h4>
<p>Docker是现在很流行的容器化技术,它部署方便,资源消耗小。Docker的学习可以查看<a href="https://yeasy.gitbooks.io/docker_practice/network/linking.html">Docker从入门到实践</a></p>
<p>首先获取RabbitMQ镜像</p>
<div class="highlight"><pre><span></span>docker pull rabbitmq:3-management
</pre></div>
<p>利用刚刚获取的镜像启动三个RabbitMQ容器。用<code>docker ps</code>查看是否启动成功。</p>
<div class="highlight"><pre><span></span>docker run -d --hostname rabbit1 --name rabbitmq-cluster1 -p <span class="m">15672</span>:15672 -p <span class="m">5672</span>:5672 -e <span class="nv">RABBITMQ_ERLANG_COOKIE</span><span class="o">=</span><span class="s1">'rabbitcookie'</span> rabbitmq:3-management
docker run -d --hostname rabbit2 --name rabbitmq-cluster2 -p <span class="m">15673</span>:15672 -p <span class="m">5673</span>:5672 -e <span class="nv">RABBITMQ_ERLANG_COOKIE</span><span class="o">=</span><span class="s1">'rabbitcookie'</span> rabbitmq:3-management
docker run -d --hostname rabbit3 --name rabbitmq-cluster3 -p <span class="m">15674</span>:15672 -p <span class="m">5674</span>:5672 -e <span class="nv">RABBITMQ_ERLANG_COOKIE</span><span class="o">=</span><span class="s1">'rabbitcookie'</span> rabbitmq:3-management
</pre></div>
<p>创建bridge网络模型</p>
<div class="highlight"><pre><span></span>xufan in ~ λ docker network create my-net
da548bf4ff7d59a9b5bea3ca1b15a54ec4eb6474cf13c7023617ee505632c7db
xufan in ~ λ docker network ls
NETWORK ID NAME DRIVER SCOPE
a537e2bf0f6e allspark_default bridge <span class="nb">local</span>
be294ecd2c06 bridge bridge <span class="nb">local</span>
13a3502ca0b7 host host <span class="nb">local</span>
da548bf4ff7d my-net bridge <span class="nb">local</span>
74271d3b1ef4 none null <span class="nb">local</span>
</pre></div>
<p>将上面创建的三个容器连接到自定义的网络my-net上。</p>
<div class="highlight"><pre><span></span>docker network connect my-net rabbitmq-cluster1
docker network connect my-net rabbitmq-cluster2
docker network connect my-net rabbitmq-cluster3
</pre></div>
<p>执行<code>docker exec -it rabbitmq-cluster1 bash</code>进入第1个容器,ping其他两台容器看看是否网络正常联通。如果没有ping命令,可安装<a href="https://stackoverflow.com/questions/39901311/docker-ubuntu-bash-ping-command-not-found">iputils-ping</a></p>
<p>在第2,3个节点执行下面命令加入集群</p>
<div class="highlight"><pre><span></span>rabbitmqctl stop_app
rabbitmqctl reset
rabbitmqctl join_cluster rabbit@rabbit1
rabbitmqctl start_app
</pre></div>
<p>有时会执行失败,后面再抽时间分析下具体原因和解决思路。</p>
<h4>镜像队列</h4>
<p>默认,RabbitMQ集群的队列和消息只存储在一个单一的节点(宣布它的节点)。如果这个节点挂掉,它的Queue和Message都将丢失(Exchange和Binding三个节点都有,因此不会丢失)。因此,RabbitMQ支持镜像队列。每个镜像队列高可用有一个主队列,然后一个或多个从队列。所有的操作先传给主队列,主队列再分发给从队列。如Publisher分发一个消息,只有消息成功分发给所有从队列,才会得到确认。Customer消费消息,不管它连接的是哪个节点,都会转到主节点。镜像队列提升了高可用,但是没有负载均衡的效果(所有节点做相同的工作)</p>
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title="Previous: RabbitMQ系列第二篇 - 如何保证消息可靠性">RabbitMQ系列第二篇 <small class="subtitle">如何保证消息可靠性</small></a></li>
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<h4>Published</h4>
<time itemprop="dateCreated" datetime="2019-01-10T00:00:00+08:00"> 1
10, 2019</time>
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<li><a href="./tags.html#docker-ref">Docker
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