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    <link rel="alternate" hreflang="en-us" href="https://iotdb.apache.org/UserGuide/V1.1.x/Ecosystem-Integration/Writing-Data-on-HDFS.html"><meta property="og:url" content="https://iotdb.apache.org/zh/UserGuide/V1.1.x/Ecosystem-Integration/Writing-Data-on-HDFS.html"><meta property="og:site_name" content="IoTDB Website"><meta property="og:description" content="HDFS 集成 存储共享架构 当前，TSFile（包括 TSFile 文件和相关的数据文件）支持存储在本地文件系统和 Hadoop 分布式文件系统（HDFS）。配置使用 HDFS 存储 TSFile 十分容易。 系统架构 当你配置使用 HDFS 存储 TSFile 之后，你的数据文件将会被分布式存储。系统架构如下： Config and usage 如..."><meta property="og:type" content="article"><meta property="og:locale" content="zh-CN"><meta property="og:locale:alternate" content="en-US"><script type="application/ld+json">{"@context":"https://schema.org","@type":"Article","headline":"","image":[""],"dateModified":null,"author":[]}</script><link rel="icon" href="/favicon.ico"><meta name="Description" content="Apache IoTDB: Time Series Database for IoT"><meta name="Keywords" content="TSDB, time series, time series database, IoTDB, IoT database, IoT data management,时序数据库, 时间序列管理, IoTDB, 物联网数据库, 实时数据库, 物联网数据管理, 物联网数据"><meta name="baidu-site-verification" content="wfKETzB3OT"><meta name="google-site-verification" content="mZWAoRY0yj_HAr-s47zHCGHzx5Ju-RVm5wDbPnwQYFo"><title>IoTDB Website</title><meta name="description" content="HDFS 集成 存储共享架构 当前，TSFile（包括 TSFile 文件和相关的数据文件）支持存储在本地文件系统和 Hadoop 分布式文件系统（HDFS）。配置使用 HDFS 存储 TSFile 十分容易。 系统架构 当你配置使用 HDFS 存储 TSFile 之后，你的数据文件将会被分布式存储。系统架构如下： Config and usage 如...">
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--><h2 id="hdfs-集成" tabindex="-1"><a class="header-anchor" href="#hdfs-集成" aria-hidden="true">#</a> HDFS 集成</h2><h3 id="存储共享架构" tabindex="-1"><a class="header-anchor" href="#存储共享架构" aria-hidden="true">#</a> 存储共享架构</h3><p>当前，TSFile（包括 TSFile 文件和相关的数据文件）支持存储在本地文件系统和 Hadoop 分布式文件系统（HDFS）。配置使用 HDFS 存储 TSFile 十分容易。</p><h4 id="系统架构" tabindex="-1"><a class="header-anchor" href="#系统架构" aria-hidden="true">#</a> 系统架构</h4><p>当你配置使用 HDFS 存储 TSFile 之后，你的数据文件将会被分布式存储。系统架构如下：</p><img style="width:100%;max-width:700px;max-height:600px;margin-left:auto;margin-right:auto;display:block;" src="https://alioss.timecho.com/docs/img/github/66922722-35180400-f05a-11e9-8ff0-7dd51716e4a8.png"><h4 id="config-and-usage" tabindex="-1"><a class="header-anchor" href="#config-and-usage" aria-hidden="true">#</a> Config and usage</h4><p>如果你希望将 TSFile 存储在 HDFS 上，可以遵循以下步骤：</p><p>首先下载对应版本的源码发布版或者下载 github 仓库</p><p>使用 maven 打包 server 和 Hadoop 模块：<code>mvn clean package -pl server,hadoop -am -Dmaven.test.skip=true -P get-jar-with-dependencies</code></p><p>然后，将 Hadoop 模块的 target jar 包<code>hadoop-tsfile-X.X.X-jar-with-dependencies.jar</code>复制到 server 模块的 target lib 文件夹 <code>.../server/target/iotdb-server-X.X.X/lib</code>下。</p><p>编辑<code>iotdb-datanode.properties</code>中的用户配置。相关配置项包括：</p><ul><li>tsfile_storage_fs</li></ul><table><thead><tr><th style="text-align:center;">名字</th><th style="text-align:left;">tsfile_storage_fs</th></tr></thead><tbody><tr><td style="text-align:center;">描述</td><td style="text-align:left;">Tsfile 和相关数据文件的存储文件系统。目前支持 LOCAL（本地文件系统）和 HDFS 两种</td></tr><tr><td style="text-align:center;">类型</td><td style="text-align:left;">String</td></tr><tr><td style="text-align:center;">默认值</td><td style="text-align:left;">LOCAL</td></tr><tr><td style="text-align:center;">改后生效方式</td><td style="text-align:left;">仅允许在第一次启动服务器前修改</td></tr></tbody></table><ul><li>core_site_path</li></ul><table><thead><tr><th style="text-align:center;">Name</th><th style="text-align:left;">core_site_path</th></tr></thead><tbody><tr><td style="text-align:center;">描述</td><td style="text-align:left;">在 Tsfile 和相关数据文件存储到 HDFS 的情况下用于配置 core-site.xml 的绝对路径</td></tr><tr><td style="text-align:center;">类型</td><td style="text-align:left;">String</td></tr><tr><td style="text-align:center;">默认值</td><td style="text-align:left;">/etc/hadoop/conf/core-site.xml</td></tr><tr><td style="text-align:center;">改后生效方式</td><td style="text-align:left;">重启服务器生效</td></tr></tbody></table><ul><li>hdfs_site_path</li></ul><table><thead><tr><th style="text-align:center;">Name</th><th style="text-align:left;">hdfs_site_path</th></tr></thead><tbody><tr><td style="text-align:center;">描述</td><td style="text-align:left;">在 Tsfile 和相关数据文件存储到 HDFS 的情况下用于配置 hdfs-site.xml 的绝对路径</td></tr><tr><td style="text-align:center;">类型</td><td style="text-align:left;">String</td></tr><tr><td style="text-align:center;">默认值</td><td style="text-align:left;">/etc/hadoop/conf/hdfs-site.xml</td></tr><tr><td style="text-align:center;">改后生效方式</td><td style="text-align:left;">重启服务器生效</td></tr></tbody></table><ul><li>hdfs_ip</li></ul><table><thead><tr><th style="text-align:center;">名字</th><th style="text-align:left;">hdfs_ip</th></tr></thead><tbody><tr><td style="text-align:center;">描述</td><td style="text-align:left;">在 Tsfile 和相关数据文件存储到 HDFS 的情况下用于配置 HDFS 的 IP。<strong>如果配置了多于 1 个 hdfs_ip，则表明启用了 Hadoop HA</strong></td></tr><tr><td style="text-align:center;">类型</td><td style="text-align:left;">String</td></tr><tr><td style="text-align:center;">默认值</td><td style="text-align:left;">localhost</td></tr><tr><td style="text-align:center;">改后生效方式</td><td style="text-align:left;">重启服务器生效</td></tr></tbody></table><ul><li>hdfs_port</li></ul><table><thead><tr><th style="text-align:center;">名字</th><th style="text-align:left;">hdfs_port</th></tr></thead><tbody><tr><td style="text-align:center;">描述</td><td style="text-align:left;">在 Tsfile 和相关数据文件存储到 HDFS 的情况下用于配置 HDFS 的端口</td></tr><tr><td style="text-align:center;">类型</td><td style="text-align:left;">String</td></tr><tr><td style="text-align:center;">默认值</td><td style="text-align:left;">9000</td></tr><tr><td style="text-align:center;">改后生效方式</td><td style="text-align:left;">重启服务器生效</td></tr></tbody></table><ul><li>dfs_nameservices</li></ul><table><thead><tr><th style="text-align:center;">名字</th><th style="text-align:left;">hdfs_nameservices</th></tr></thead><tbody><tr><td style="text-align:center;">描述</td><td style="text-align:left;">在使用 Hadoop HA 的情况下用于配置 HDFS 的 nameservices</td></tr><tr><td style="text-align:center;">类型</td><td style="text-align:left;">String</td></tr><tr><td style="text-align:center;">默认值</td><td style="text-align:left;">hdfsnamespace</td></tr><tr><td style="text-align:center;">改后生效方式</td><td style="text-align:left;">重启服务器生效</td></tr></tbody></table><ul><li>dfs_ha_namenodes</li></ul><table><thead><tr><th style="text-align:center;">名字</th><th style="text-align:left;">hdfs_ha_namenodes</th></tr></thead><tbody><tr><td style="text-align:center;">描述</td><td style="text-align:left;">在使用 Hadoop HA 的情况下用于配置 HDFS 的 nameservices 下的 namenodes</td></tr><tr><td style="text-align:center;">类型</td><td style="text-align:left;">String</td></tr><tr><td style="text-align:center;">默认值</td><td style="text-align:left;">nn1,nn2</td></tr><tr><td style="text-align:center;">改后生效方式</td><td style="text-align:left;">重启服务器生效</td></tr></tbody></table><ul><li>dfs_ha_automatic_failover_enabled</li></ul><table><thead><tr><th style="text-align:center;">名字</th><th style="text-align:left;">dfs_ha_automatic_failover_enabled</th></tr></thead><tbody><tr><td style="text-align:center;">描述</td><td style="text-align:left;">在使用 Hadoop HA 的情况下用于配置是否使用失败自动切换</td></tr><tr><td style="text-align:center;">类型</td><td style="text-align:left;">Boolean</td></tr><tr><td style="text-align:center;">默认值</td><td style="text-align:left;">true</td></tr><tr><td style="text-align:center;">改后生效方式</td><td style="text-align:left;">重启服务器生效</td></tr></tbody></table><ul><li>dfs_client_failover_proxy_provider</li></ul><table><thead><tr><th style="text-align:center;">名字</th><th style="text-align:left;">dfs_client_failover_proxy_provider</th></tr></thead><tbody><tr><td style="text-align:center;">描述</td><td style="text-align:left;">在使用 Hadoop HA 且使用失败自动切换的情况下配置失败自动切换的实现方式</td></tr><tr><td style="text-align:center;">类型</td><td style="text-align:left;">String</td></tr><tr><td style="text-align:center;">默认值</td><td style="text-align:left;">org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider</td></tr><tr><td style="text-align:center;">改后生效方式</td><td style="text-align:left;">重启服务器生效</td></tr></tbody></table><ul><li>hdfs_use_kerberos</li></ul><table><thead><tr><th style="text-align:center;">名字</th><th style="text-align:left;">hdfs_use_kerberos</th></tr></thead><tbody><tr><td style="text-align:center;">描述</td><td style="text-align:left;">是否使用 kerberos 验证访问 hdfs</td></tr><tr><td style="text-align:center;">类型</td><td style="text-align:left;">String</td></tr><tr><td style="text-align:center;">默认值</td><td style="text-align:left;">false</td></tr><tr><td style="text-align:center;">改后生效方式</td><td style="text-align:left;">重启服务器生效</td></tr></tbody></table><ul><li>kerberos_keytab_file_path</li></ul><table><thead><tr><th style="text-align:center;">名字</th><th style="text-align:left;">kerberos_keytab_file_path</th></tr></thead><tbody><tr><td style="text-align:center;">描述</td><td style="text-align:left;">kerberos keytab file 的完整路径</td></tr><tr><td style="text-align:center;">类型</td><td style="text-align:left;">String</td></tr><tr><td style="text-align:center;">默认值</td><td style="text-align:left;">/path</td></tr><tr><td style="text-align:center;">改后生效方式</td><td style="text-align:left;">重启服务器生效</td></tr></tbody></table><ul><li>kerberos_principal</li></ul><table><thead><tr><th style="text-align:center;">名字</th><th style="text-align:left;">kerberos_principal</th></tr></thead><tbody><tr><td style="text-align:center;">描述</td><td style="text-align:left;">Kerberos 认证原则</td></tr><tr><td style="text-align:center;">类型</td><td style="text-align:left;">String</td></tr><tr><td style="text-align:center;">默认值</td><td style="text-align:left;">your principal</td></tr><tr><td style="text-align:center;">改后生效方式</td><td style="text-align:left;">重启服务器生效</td></tr></tbody></table><p>启动 server, Tsfile 将会被存储到 HDFS 上。</p><p>如果你想要恢复将 TSFile 存储到本地文件系统，只需编辑配置项<code>tsfile_storage_fs</code>为<code>LOCAL</code>。在这种情况下，如果你已经在 HDFS 上存储了一些数据文件，你需要将它们下载到本地，并移动到你所配置的数据文件文件夹（默认为<code>../server/target/iotdb-server-X.X.X/data/data</code>）， 或者重新开始你的整个导入数据过程。</p><h4 id="常见问题" tabindex="-1"><a class="header-anchor" href="#常见问题" aria-hidden="true">#</a> 常见问题</h4><ol><li>这个功能支持哪些 Hadoop 版本？</li></ol><p>A: Hadoop 2.x and Hadoop 3.x 均可以支持。</p><ol start="2"><li>当启动服务器或创建时间序列时，我遇到了如下错误：</li></ol><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>ERROR org.apache.iotdb.tsfile.fileSystem.fsFactory.HDFSFactory:62 - Failed to get Hadoop file system. Please check your dependency of Hadoop module.
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>A: 这表明你没有将 Hadoop 模块的依赖放到 IoTDB server 中。你可以这样解决：</p><ul><li>使用 Maven 打包 Hadoop 模块：<code>mvn clean package -pl hadoop -am -Dmaven.test.skip=true -P get-jar-with-dependencies</code></li><li>将 Hadoop 模块的 target jar 包<code>hadoop-tsfile-X.X.X-jar-with-dependencies.jar</code>复制到 server 模块的 target lib 文件夹 <code>.../server/target/iotdb-server-X.X.X/lib</code>下。</li></ul></div><!----><footer class="page-meta"><div class="meta-item edit-link"><a href="https://github.com/apache/iotdb/edit/rel/1.1/docs/zh/UserGuide/Ecosystem-Integration/Writing-Data-on-HDFS.md" rel="noopener noreferrer" target="_blank" aria-label="发现错误？在 GitHub 上编辑此页" class="nav-link label"><!--[--><svg xmlns="http://www.w3.org/2000/svg" class="icon edit-icon" viewBox="0 0 1024 1024" fill="currentColor" aria-label="edit icon"><path d="M430.818 653.65a60.46 60.46 0 0 1-50.96-93.281l71.69-114.012 7.773-10.365L816.038 80.138A60.46 60.46 0 0 1 859.225 62a60.46 60.46 0 0 1 43.186 18.138l43.186 43.186a60.46 60.46 0 0 1 0 86.373L588.879 565.55l-8.637 8.637-117.466 68.234a60.46 60.46 0 0 1-31.958 11.229z"></path><path d="M728.802 962H252.891A190.883 190.883 0 0 1 62.008 771.98V296.934a190.883 190.883 0 0 1 190.883-192.61h267.754a60.46 60.46 0 0 1 0 120.92H252.891a69.962 69.962 0 0 0-69.098 69.099V771.98a69.962 69.962 0 0 0 69.098 69.098h475.911A69.962 69.962 0 0 0 797.9 771.98V503.363a60.46 60.46 0 1 1 120.922 0V771.98A190.883 190.883 0 0 1 728.802 962z"></path></svg><!--]-->发现错误？在 GitHub 上编辑此页<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span><!----></a></div><div class="meta-item git-info"><!----><!----></div></footer><!----><!----><!----><!--]--></main><!--]--><footer style="padding-bottom:2rem;"><span id="doc-version" style="display:none;">rel/1.1</span><p style="text-align:center;color:#909399;font-size:12px;margin:0 30px;">Copyright © 2023 The Apache Software Foundation.<br> Apache and the Apache feather logo are trademarks of The Apache Software Foundation</p><p style="text-align:center;margin-top:10px;color:#909399;font-size:12px;margin:0 30px;"><strong>Have a question?</strong> Connect with us on QQ, WeChat, or Slack. <a href="https://github.com/apache/iotdb/issues/1995">Join the community</a> now.</p><p style="text-align:center;margin-top:10px;color:#909399;font-size:12px;margin:0 30px;"> We use <a href="https://analytics.google.com">Google Analytics</a> to collect anonymous, aggregated usage information. </p></footer></div><!--]--><!--]--><!----><!--]--></div>
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