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| <!--- |
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| <li>docker</li> |
| <li>AWS CLI（可选）</li> |
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| <h1 id="所有-ozone-服务在单个容器">所有 Ozone 服务在单个容器</h1> |
| <p>启动一个 all-in-one 的 ozone 容器最简单的方法就是使用 Docker Hub 最新的 docker 镜像：</p> |
| <div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-bash" data-lang="bash">docker run -p 9878:9878 -p 9876:9876 apache/ozone |
| </code></pre></div><p>这个命令会从 Docker Hub 拉取 ozone 镜像并在一个容器中启动所有 ozone 服务，包括必要的元数据服务（Ozone Manager，Storage Container Manager）、一个数据节点和兼容 S3 |
| 的 REST 服务（S3 网关）。</p> |
| <h1 id="ozone-服务在多个独立的容器">Ozone 服务在多个独立的容器</h1> |
| <p>如果你需要一个更类似生产环境的集群，使用 Ozone 发行包自带的 docker-compose 配置文件可以让 Ozone 服务组件在各自独立的容器中运行。</p> |
| <p>docker-compose 配置文件和一个 environment 文件已经包含在 Docker Hub 的镜像中。</p> |
| <p>下面的命令可以从镜像中获取到这两个文件：</p> |
| <div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-bash" data-lang="bash">docker run apache/ozone cat docker-compose.yaml > docker-compose.yaml |
| docker run apache/ozone cat docker-config > docker-config |
| </code></pre></div><p>现在你可以用 docker-compose 命令来启动集群：</p> |
| <div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-bash" data-lang="bash">docker-compose up -d |
| </code></pre></div><p>如果你需要多个数据节点，可以通过下面的命令增加：</p> |
| <div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-bash" data-lang="bash"> docker-compose scale datanode<span style="color:#f92672">=</span><span style="color:#ae81ff">3</span> |
| </code></pre></div><h1 id="运行-s3-客户端">运行 S3 客户端</h1> |
| <p>集群启动就绪后，你可以连接 SCM 的 UI 来验证它的状态，地址为（<a href="http://localhost:9876">http://localhost:9876</a>）。</p> |
| <p>S3 网关的端口为 9878，如果你正在使用 S3 作为存储方案，可以考虑 Ozone 的 S3 功能。</p> |
| <p>从命令行创建桶的命令为：</p> |
| <div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-bash" data-lang="bash">aws s3api --endpoint http://localhost:9878/ create-bucket --bucket<span style="color:#f92672">=</span>bucket1 |
| </code></pre></div><p>唯一的区别在于你需要在运行 aws s3api 命令的时候用 –endpoint 选项指定 ozone S3 网关的地址。</p> |
| <p>下面我们来把一个简单的文件存入 Ozone 的 S3 桶中，首先创建一个用来上传的临时文件：</p> |
| <div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-bash" data-lang="bash">ls -1 > /tmp/testfile |
| </code></pre></div><p>这个命令创建了一个用来上传到 Ozone 的临时文件，下面的命令用标准的 aws s3 命令行接口把这个文件上传到了 Ozone 的 S3 桶中：</p> |
| <div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-bash" data-lang="bash">aws s3 --endpoint http://localhost:9878 cp --storage-class REDUCED_REDUNDANCY /tmp/testfile s3://bucket1/testfile |
| </code></pre></div><div class="alert alert-info" role="alert"> |
| 注意：对于单容器 ozone 来说，REDUCED_REDUNDANCY 参数是必需的，因为它只有一个数据节点。</div> |
| 我们可以对桶运行 list 命令来验证文件是否上传成功： |
| <div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-bash" data-lang="bash">aws s3 --endpoint http://localhost:9878 ls s3://bucket1/testfile |
| </code></pre></div><div class="alert alert-info" role="alert"> 你也可以点击下面的链接，通过 Ozone S3 网关自带的浏览器去查看桶内的文件。 |
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