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<meta itemprop="dateModified" content="November 12, 2019">
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<h1 class="page__title" itemprop="headline">Syncer 快速入门
</h1>
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<li><a href="#异构多服务中心通讯-syncer" id="markdown-toc-异构多服务中心通讯-syncer">异构、多服务中心通讯 Syncer</a></li>
<li><a href="#快速入门" id="markdown-toc-快速入门">快速入门</a> <ul>
<li><a href="#命令行参数说明" id="markdown-toc-命令行参数说明">命令行参数说明:</a></li>
<li><a href="#单例模式single-mode" id="markdown-toc-单例模式single-mode">单例模式（Single Mode）</a></li>
<li><a href="#集群模式cluster-mode" id="markdown-toc-集群模式cluster-mode">集群模式（Cluster Mode）</a></li>
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<h2 id="异构多服务中心通讯-syncer">异构、多服务中心通讯 Syncer</h2>
<p>Syncer是一个多服务中心的同步工具，专为大型微服务架构设计，用于在网络互通的情况下，不同技术栈服务中心、跨区域的实例同步，未来将对跨网络、跨云等场景提供支持。</p>
<h2 id="快速入门">快速入门</h2>
<ol>
<li>获取并启动服务中心</li>
</ol>
<p>以Service-center为例，详细参见：<a href="/cn/docs/products/service-center/install/">ServiceCenter 环境安装</a></p>
<ol>
<li>下载并解压<a href="/cn/release/service-center-downloads/">ServiceCenter发布包（&gt;=1.3.0）</a>
<div class="language-bash highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="c"># 解压tar包</span>
<span class="nv">$ </span><span class="nb">tar</span> <span class="nt">-zxvf</span> apache-servicecomb-service-center-1.3.0-linux-amd64.tar.gz
<span class="nv">$ </span><span class="nb">cd </span>apache-servicecomb-service-center-1.3.0-linux-amd64/
</code></pre></div> </div>
</li>
<li>启动ServiceCenter Syncer
<h3 id="命令行参数说明">命令行参数说明:</h3>
<ul>
<li>node: syncer名称,集群内成员名必须唯一。</li>
<li>sc-addr: 服务注册中心地址。支持集群模式，多个地址间使用英文半角”,”隔开。</li>
<li>bind-addr: Gossip协议通讯地址，用于Syncer间的消息传递、集群管理</li>
<li>rpc-addr: RPC数据传输地址，用于Syncer间的数据同步</li>
<li>join-addr: 指向目标Syncer的BindAddr，当前Syncer将通过该地址加入网络</li>
<li>mode: 运行模式配置，当前支持两种模式，单实例模式“single”和集群模式“cluster”, cluster模式下每个syncer拥有三个实例</li>
<li>cluster-name: 当mode为”cluster“时，Syncer集群的名字</li>
<li>cluster-port: 当mode为“cluster”时，Syncer三个实例之间一致性协商的端口</li>
</ul>
</li>
</ol>
<p>假设有2个服务中心，每个服务中心都有一个用于微服务发现和注册的服务中心集群，如下所示：</p>
<table>
<thead>
<tr>
<th style="text-align: center">Service center</th>
<th style="text-align: center">Local address</th>
</tr>
</thead>
<tbody>
<tr>
<td style="text-align: center">http://10.0.0.10:30100</td>
<td style="text-align: center">10.0.0.10</td>
</tr>
<tr>
<td style="text-align: center">http://10.0.0.11:30100</td>
<td style="text-align: center">10.0.0.11</td>
</tr>
</tbody>
</table>
<h3 id="单例模式single-mode">单例模式（Single Mode）</h3>
<p>分别在两个机器上启动两个syncer来完成这两个服务中心之间的微服务数据同步</p>
<ul>
<li>在10.0.0.10的机器上执行以下命令启动Syncer</li>
</ul>
<div class="language-bash highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nv">$ </span>./syncer daemon <span class="nt">--sc-addr</span> http://10.0.0.10:30100 <span class="nt">--bind-addr</span> 10.0.0.10:30190 <span class="nt">--rpc-addr</span> 10.0.0.10:30191
</code></pre></div></div>
<ul>
<li>在10.0.0.11的机器上执行以下命令启动Syncer，并加入10.0.0.10的gossip池</li>
</ul>
<div class="language-bash highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nv">$ </span>./syncer daemon <span class="nt">--sc-addr</span> http://10.0.0.11:30100 <span class="nt">--bind-addr</span> 10.0.0.11:30190 <span class="nt">--rpc-addr</span> 10.0.0.11:30191 <span class="nt">--join-addr</span> 10.0.0.10:30191
</code></pre></div></div>
<h3 id="集群模式cluster-mode">集群模式（Cluster Mode）</h3>
<p>分别在两个机器上启动两个syncer集群来完成这两个服务中心之间的微服务数据同步</p>
<ul>
<li>在10.0.0.10的机器上启动syncer集群</li>
</ul>
<div class="language-bash highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nv">$ </span>./syncer daemon <span class="nt">--sc-addr</span> http://10.0.0.10:30100 <span class="nt">--bind-addr</span> 10.0.0.10:30190 <span class="nt">--rpc-addr</span> 10.0.0.10:30191 <span class="nt">--mode</span> cluster <span class="nt">--node</span> syncer011 <span class="nt">--cluster-port</span> 30201 <span class="nt">--join-addr</span> 10.0.0.10:30190
<span class="nv">$ </span>./syncer daemon <span class="nt">--sc-addr</span> http://10.0.0.10:30100 <span class="nt">--bind-addr</span> 10.0.0.10:30290 <span class="nt">--rpc-addr</span> 10.0.0.10:30291 <span class="nt">--mode</span> cluster <span class="nt">--node</span> syncer012 <span class="nt">--cluster-port</span> 30202 <span class="nt">--join-addr</span> 10.0.0.10:30190
<span class="nv">$ </span>./syncer daemon <span class="nt">--sc-addr</span> http://10.0.0.10:30100 <span class="nt">--bind-addr</span> 10.0.0.10:30390 <span class="nt">--rpc-addr</span> 10.0.0.10:30391 <span class="nt">--mode</span> cluster <span class="nt">--node</span> syncer013 <span class="nt">--cluster-port</span> 30203 <span class="nt">--join-addr</span> 10.0.0.10:30190
</code></pre></div></div>
<ul>
<li>在10.0.0.11机器上启动syncer集群</li>
</ul>
<div class="language-bash highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nv">$ </span>./syncer daemon <span class="nt">--sc-addr</span> http://10.0.0.11:30100 <span class="nt">--bind-addr</span> 10.0.0.11:30190 <span class="nt">--rpc-addr</span> 10.0.0.11:30191 <span class="nt">--mode</span> cluster <span class="nt">--node</span> syncer021 <span class="nt">--cluster-port</span> 30201 <span class="nt">--join-addr</span> 10.0.0.10:30190
<span class="nv">$ </span>./syncer daemon <span class="nt">--sc-addr</span> http://10.0.0.11:30100 <span class="nt">--bind-addr</span> 10.0.0.11:30290 <span class="nt">--rpc-addr</span> 10.0.0.11:30291 <span class="nt">--mode</span> cluster <span class="nt">--node</span> syncer022 <span class="nt">--cluster-port</span> 30202 <span class="nt">--join-addr</span> 10.0.0.10:30190
<span class="nv">$ </span>./syncer daemon <span class="nt">--sc-addr</span> http://10.0.0.11:30100 <span class="nt">--bind-addr</span> 10.0.0.11:30390 <span class="nt">--rpc-addr</span> 10.0.0.11:30391 <span class="nt">--mode</span> cluster <span class="nt">--node</span> syncer023 <span class="nt">--cluster-port</span> 30203 <span class="nt">--join-addr</span> 10.0.0.10:30190
</code></pre></div></div>
<h3 id="结果验证">结果验证</h3>
<p>将微服务实例注册到其中一个ServiceCener后30秒，可以从每个ServiceCenter获取有关该实例的信息。</p>
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