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--><h2 id="node-工具" tabindex="-1"><a class="header-anchor" href="#node-工具" aria-hidden="true">#</a> Node 工具</h2><h3 id="工具介绍" tabindex="-1"><a class="header-anchor" href="#工具介绍" aria-hidden="true">#</a> 工具介绍</h3><p>IoTDB 集群版为您提供了 NodeTool Shell 工具用于监控指定集群的工作状态，您可以通过运行多种指令获取集群各项状态。</p><p>下面具体介绍每个指令的使用方式及示例，其中 $IOTDB_CLUSTER_HOME 表示 IoTDB 分布式的安装目录所在路径。</p><h3 id="前提条件" tabindex="-1"><a class="header-anchor" href="#前提条件" aria-hidden="true">#</a> 前提条件</h3><p>使用 NodeTool 需要开启 JMX 服务，具体请参考 <a href="/zh/UserGuide/V0.13.x/Maintenance-Tools/JMX-Tool.html" class="">JMX Tool</a>。</p><h3 id="使用说明" tabindex="-1"><a class="header-anchor" href="#使用说明" aria-hidden="true">#</a> 使用说明</h3><h4 id="运行方式" tabindex="-1"><a class="header-anchor" href="#运行方式" aria-hidden="true">#</a> 运行方式</h4><p>NodeTool Shell 工具启动脚本位于 $IOTDB_CLUSTER_HOME/sbin 文件夹下，启动时可以指定集群运行的 IP 和 PORT。 其中 IP 为您期望连接的节点的 IP，PORT 为 IoTDB 集群启动时指定的 JMX 服务端口号，分别默认为<code>127.0.0.1</code>和<code>31999</code>。</p><p>如果您需要监控远程集群或修改了 JMX 服务端口号，请通过启动参数<code>-h</code>和<code>-p</code>项来使用实际的 IP 和 PORT。</p><p>对于开启了 JMX 鉴权服务的，启动时候需要指定 JMX 服务的用户名和密码，默认分别为<code>iotdb</code>和<code>passw!d</code>，请通过启动参数<code>-u</code> 和<code>-pw</code> 项来指定 JMX 服务的用户名和密码。</p><h4 id="指令说明" tabindex="-1"><a class="header-anchor" href="#指令说明" aria-hidden="true">#</a> 指令说明</h4><p>在分布式系统中，一个节点由节点 IP，元数据端口，数据端口和服务端口来标识，即 Node&lt;IP:METAPORT:DATAPORT:CLUSTERPORT&gt;。</p><h5 id="展示节点环" tabindex="-1"><a class="header-anchor" href="#展示节点环" aria-hidden="true">#</a> 展示节点环</h5><p>IoTDB 集群版采用一致性哈希的方式实现数据分布，用户可以通过打印哈希环信息了解每个节点在环中的位置。</p><ol><li>输入</li></ol><blockquote><p>打印哈希环的指令为 ring</p></blockquote><ol start="2"><li>输出</li></ol><blockquote><p>输出为多行字符串，每行字符串为一个键值对，其中键表示节点标识，值表示节点 (IP:METAPORT:DATAPORT:CLUSTERPORT)，格式为、&lt;key -&gt; value&gt;。</p></blockquote><ol start="3"><li>示例</li></ol><blockquote><p>假设当前集群运行在 127.0.0.1:9003:40010:6667, 127.0.0.1:9005:40012:6668 和 127.0.0.1:9007:40014:6669 三个节点上。 不同系统的输入指令示例如下：</p></blockquote><p>Linux 系统与 MacOS 系统：</p><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>Shell &gt; ./sbin/nodetool.sh -h 127.0.0.1 -p 31999 ring
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>Windows 系统：</p><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>Shell &gt; .\sbin\nodetool.bat -h 127.0.0.1 -p 31999 ring
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>回车后即可执行指令。示例指令的输出如下：</p><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>Node Identifier                                 Node 
330411070           -&gt;          127.0.0.1:9003:40010:6667 
330454032           -&gt;          127.0.0.1:9005:40012:6668
330496472           -&gt;          127.0.0.1:9007:40014:6669
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>上述输出表示当前集群共有 3 个节点，按照节点标识从小到大输出结果。</p><h5 id="查询数据分区和元数据分区" tabindex="-1"><a class="header-anchor" href="#查询数据分区和元数据分区" aria-hidden="true">#</a> 查询数据分区和元数据分区</h5><p>IoTDB 集群版的时间序列元数据按照存储组分给多个数据组，其中存储组和数据组为多对一的关系， 即同一个存储组的时间序列元数据只存在于同一个数据组，一个数据组可能包含多个存储组的时间序列元数据；</p><p>数据按照存储组和其时间戳分给不同数据组，时间分区粒度默认为一天。</p><p>数据组由多个节点组成，节点数量为副本数，保证数据高可用，其中某一个节点担任 Leader 的角色。</p><p>通过该指令，用户可以获知某个路径下的元数据或数据具体存储在哪些节点下。</p><ol><li>输入</li></ol><blockquote><p>查询数据分区信息的指令为 partition，参数具体说明如下：</p></blockquote><table><thead><tr><th>参数名</th><th>参数说明</th><th>示例</th></tr></thead><tbody><tr><td>-m</td><td>--metadata 查询元数据分区，默认为查询数据分区</td><td>-m</td></tr><tr><td>-path</td><td>--path 必要参数，需要查询的路径，若该路径无对应的存储组，则查询失败</td><td>-path root.guangzhou.d1</td></tr><tr><td>-st</td><td>--StartTime 查询数据分区时使用，起始时间，默认为系统当前时间</td><td>-st 1576724778159</td></tr><tr><td>-et</td><td>--EndTime 查询数据分区时使用，终止时间，默认为系统当前时间。若终止时间小于起始时间，则终止时间默认为起始时间</td><td>-et 1576724778159</td></tr></tbody></table><ol start="2"><li>输出</li></ol><blockquote><p>输出为多行字符串，每行字符串为一个键值对，其中键表示分区，值表示数据组，格式为、&lt;key -&gt; value&gt;。</p></blockquote><ol start="3"><li>示例</li></ol><blockquote><p>假设当前集群运行在 127.0.0.1:9003:40010:6667, 127.0.0.1:9005:40012:6668 和 127.0.0.1:9007:40014:6669 三个节点上。 副本数为 2，共有 3 个存储组：{root.beijing、root.shanghai、root.guangzhou}。</p></blockquote><ul><li>查询数据的分区（默认时间范围，时间按天分区）</li></ul><p>不同系统的输入指令示例如下：</p><p>Linux 系统与 MacOS 系统：</p><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>Shell &gt; ./sbin/nodetool.sh -h 127.0.0.1 -p 31999 partition -path root.guangzhou.d1
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>Windows 系统：</p><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>Shell &gt; .\sbin\nodetool.bat -h 127.0.0.1 -p 31999 partition -path root.guangzhou.d1
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>回车后即可执行指令。示例指令的输出如下：</p><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>DATA&lt;root.guangzhou.d1, 1576723735188, 1576723735188&gt;	-&gt;	[127.0.0.1:9003:40010:6667, 127.0.0.1:9005:40012:6668]
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><ul><li>查询数据的分区（指定时间范围，时间按天分区）</li></ul><p>不同系统的输入指令示例如下：</p><p>Linux 系统与 MacOS 系统：</p><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>Shell &gt; ./sbin/nodetool.sh -h 127.0.0.1 -p 31999 partition -path root.guangzhou.d1 -st 1576624778159 -et 1576724778159
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>Windows 系统：</p><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>Shell &gt; .\sbin\nodetool.bat -h 127.0.0.1 -p 31999 partition -path root.guangzhou.d1 -st 1576624778159 -et 1576724778159
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>回车后即可执行指令。示例指令的输出如下：</p><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>DATA&lt;root.guangzhou.d1, 1576627200000, 1576713599999&gt;	-&gt;	[127.0.0.1:9007:40014:6669, 127.0.0.1:9003:40010:6667] 
DATA&lt;root.guangzhou.d1, 1576713600000, 1576724778159&gt;	-&gt;	[127.0.0.1:9003:40010:6668, 127.0.0.1:9005:40012:6668] 
DATA&lt;root.guangzhou.d1, 1576624778159, 1576627199999&gt;	-&gt;	[127.0.0.1:9005:40012:6667, 127.0.0.1:9007:40014:6669]
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>查询元数据分区</li></ul><p>不同系统的输入指令示例如下：</p><p>Linux 系统与 MacOS 系统：</p><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>Shell &gt; ./sbin/nodetool.sh -h 127.0.0.1 -p 31999 partition -path root.guangzhou.d1 -m
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>Windows 系统：</p><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>Shell &gt; .\sbin\nodetool.bat -h 127.0.0.1 -p 31999 partition -path root.guangzhou.d1 -m
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>回车后即可执行指令。示例指令的输出如下：</p><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>DATA&lt;root.guangzhou.d1, 1576723735188, 1576723735188&gt;	-&gt;	[127.0.0.1:9003:40010:6667, 127.0.0.1:9005:40012:6668]
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>上述输出表示 root.t1.d1 所属的数据分区包含 2 个节点，其中 127.0.0.1:9003:40010:6667 为 header 节点。</p><h5 id="查询节点管理的槽数" tabindex="-1"><a class="header-anchor" href="#查询节点管理的槽数" aria-hidden="true">#</a> 查询节点管理的槽数</h5><p>IoTDB 集群版将哈希环划分为固定数量（默认 10000) 个槽，并由集群管理组（元数据组）的 leader 将槽划分各个数据组。通过该指令，用户可以获知数据组管理的槽数。</p><ol><li>输入</li></ol><blockquote><p>查询节点对应数据分区信息的指令为 host，参数具体说明如下：</p></blockquote><table><thead><tr><th>参数名</th><th>参数说明</th><th>示例</th></tr></thead><tbody><tr><td>-a --all</td><td>查询所有数据组管理的槽数，默认为查询的节点所在的数据组</td><td>-a</td></tr></tbody></table><ol start="2"><li>输出</li></ol><blockquote><p>输出为多行字符串，其中每行字符串为一个键值对，其中键表示数据组，值表示管理的槽数，格式为、&lt;key -&gt; value&gt;。</p></blockquote><ol start="3"><li>示例</li></ol><blockquote><p>假设当前集群运行在 127.0.0.1:9003:40010:6667, 127.0.0.1:9005:40012:6668 和 127.0.0.1:9007:40014:6669 三个节点上，副本数为 2。</p></blockquote><ul><li>默认节点所在分区</li></ul><p>不同系统的输入指令示例如下：</p><p>Linux 系统与 MacOS 系统：</p><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>Shell &gt; ./sbin/nodetool.sh -h 127.0.0.1 -p 31999 host
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>Windows 系统：</p><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>Shell &gt; .\sbin\nodetool.bat -h 127.0.0.1 -p 31999 host
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>回车后即可执行指令。示例指令的输出如下：</p><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>Raft group                                                 Slot Number
(127.0.0.1:9003:40010:6667, 127.0.0.1:9005:40012:6668)      -&gt;                3333
(127.0.0.1:9007:40014:6669, 127.0.0.1:9003:40010:6667)      -&gt;                3334
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>所有分区</li></ul><p>不同系统的输入指令示例如下：</p><p>Linux 系统与 MacOS 系统：</p><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>Shell &gt; ./sbin/nodetool.sh -h 127.0.0.1 -p 31999 host -a
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>Windows 系统：</p><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>Shell &gt; .\sbin\nodetool.bat -h 127.0.0.1 -p 31999 host -a
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>回车后即可执行指令。示例指令的输出如下：</p><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>Raft group                                                 Slot Number
(127.0.0.1:9003:40010:6667, 127.0.0.1:9005:40012:6668)      -&gt;                3333
(127.0.0.1:9005:40012:6668, 127.0.0.1:9007:40014:6669)      -&gt;                3333
(127.0.0.1:9007:40014:6669, 127.0.0.1:9003:40010:6667)      -&gt;                3334 
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h5 id="查询节点状态" tabindex="-1"><a class="header-anchor" href="#查询节点状态" aria-hidden="true">#</a> 查询节点状态</h5><p>IoTDB 集群版包含多个节点，对于任意节点都存在因为网络、硬件等问题导致无法正常提供服务的可能。</p><p>通过该指令，用户即可获知集群中所有节点当前的状态。</p><ol><li>输入</li></ol><blockquote><p>查询节点状态的指令为 status，无其他参数。</p></blockquote><ol start="2"><li>输出</li></ol><blockquote><p>输出为多行字符串，其中每行字符串为一个键值对，其中键表示节点 (IP:METAPORT:DATAPORT)， 值表示该节点的状态，“on”为正常，“off”为不正常，格式为、&lt;key -&gt; value&gt;。</p></blockquote><ol start="3"><li>示例</li></ol><blockquote><p>假设当前集群运行在 127.0.0.1:9003:40010:6667, 127.0.0.1:9005:40012:6668 和 127.0.0.1:9007:40014:6669 三个节点上，副本数为 2。</p></blockquote><p>不同系统的输入指令示例如下：</p><p>Linux 系统与 MacOS 系统：</p><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>Shell &gt; ./sbin/nodetool.sh -h 127.0.0.1 -p 31999 status
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>Windows 系统：</p><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>Shell &gt; .\sbin\nodetool.bat -h 127.0.0.1 -p 31999 status
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>回车后即可执行指令。示例指令的输出如下：</p><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>Node                                Status 
127.0.0.1:9003:40010:6667          -&gt;        on 
127.0.0.1:9005:40012:6668          -&gt;        off 
127.0.0.1:9007:40014:6669          -&gt;        on
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>上述输出表示 127.0.0.1:9003:40010:6667 节点和 127.0.0.1:9007:40014:6669 节点状态正常，127.0.0.1:9005:40012:6668 节点无法提供服务。</p></div><!----><footer class="page-meta"><div class="meta-item edit-link"><a href="https://github.com/apache/iotdb/edit/rel/0.13/docs/zh/UserGuide/Maintenance-Tools/NodeTool.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><nav class="page-nav"><a href="/zh/UserGuide/V0.13.x/Maintenance-Tools/Export-Schema-Tool.html" class="nav-link prev" aria-label="元数据导出工具"><div class="hint"><span class="arrow start"></span>上一页</div><div class="link"><!---->元数据导出工具</div></a><a href="/zh/UserGuide/V0.13.x/Maintenance-Tools/Watermark-Tool.html" class="nav-link next" aria-label="水印工具"><div class="hint">下一页<span class="arrow end"></span></div><div class="link">水印工具<!----></div></a></nav><!----><!----><!--]--></main><!--]--><footer style="padding-bottom:2rem;"><span id="doc-version" style="display:none;">rel/0.13</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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