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class="vp-sidebar-group"><button class="vp-sidebar-header clickable" type="button"><!----><span class="vp-sidebar-title">应用编程接口</span><span class="vp-arrow end"></span></button><!----></section></li><li><section class="vp-sidebar-group"><button class="vp-sidebar-header clickable" type="button"><!----><span class="vp-sidebar-title">系统集成</span><span class="vp-arrow end"></span></button><!----></section></li><li><section class="vp-sidebar-group"><button class="vp-sidebar-header clickable" type="button"><!----><span class="vp-sidebar-title">SQL手册</span><span class="vp-arrow end"></span></button><!----></section></li><li><section class="vp-sidebar-group"><button class="vp-sidebar-header clickable" type="button"><!----><span class="vp-sidebar-title">技术内幕</span><span class="vp-arrow end"></span></button><!----></section></li><li><section class="vp-sidebar-group"><button class="vp-sidebar-header clickable" type="button"><!----><span class="vp-sidebar-title">附录</span><span class="vp-arrow end"></span></button><!----></section></li><li><section class="vp-sidebar-group"><button class="vp-sidebar-header clickable" type="button"><!----><span class="vp-sidebar-title">FAQ</span><span class="vp-arrow end"></span></button><!----></section></li></ul><!----></aside><!--[--><main id="main-content" class="vp-page"><!--[--><!----><!----><nav class="vp-breadcrumb disable"></nav><div class="vp-page-title"><h1><!---->健康检查工具</h1><div class="page-info"><!----><!----><span class="page-date-info" aria-label="写作日期📅" data-balloon-pos="up"><svg xmlns="http://www.w3.org/2000/svg" class="icon calendar-icon" viewBox="0 0 1024 1024" fill="currentColor" aria-label="calendar icon" name="calendar"><path d="M716.4 110.137c0-18.753-14.72-33.473-33.472-33.473-18.753 0-33.473 14.72-33.473 33.473v33.473h66.993v-33.473zm-334.87 0c0-18.753-14.72-33.473-33.473-33.473s-33.52 14.72-33.52 33.473v33.473h66.993v-33.473zm468.81 33.52H716.4v100.465c0 18.753-14.72 33.473-33.472 33.473a33.145 33.145 0 01-33.473-33.473V143.657H381.53v100.465c0 18.753-14.72 33.473-33.473 33.473a33.145 33.145 0 01-33.473-33.473V143.657H180.6A134.314 134.314 0 0046.66 277.595v535.756A134.314 134.314 0 00180.6 947.289h669.74a134.36 134.36 0 00133.94-133.938V277.595a134.314 134.314 0 00-133.94-133.938zm33.473 267.877H147.126a33.145 33.145 0 01-33.473-33.473c0-18.752 14.72-33.473 33.473-33.473h736.687c18.752 0 33.472 14.72 33.472 33.473a33.145 33.145 0 01-33.472 33.473z"></path></svg><span data-allow-mismatch="text">2025年3月13日</span><meta property="datePublished" content="2025-03-13T01:57:36.000Z"></span><!----><span class="page-reading-time-info" aria-label="阅读时间⌛" data-balloon-pos="up"><svg xmlns="http://www.w3.org/2000/svg" class="icon timer-icon" viewBox="0 0 1024 1024" fill="currentColor" aria-label="timer icon" name="timer"><path d="M799.387 122.15c4.402-2.978 7.38-7.897 7.38-13.463v-1.165c0-8.933-7.38-16.312-16.312-16.312H256.33c-8.933 0-16.311 7.38-16.311 16.312v1.165c0 5.825 2.977 10.874 7.637 13.592 4.143 194.44 97.22 354.963 220.201 392.763-122.204 37.542-214.893 196.511-220.2 389.397-4.661 5.049-7.638 11.651-7.638 19.03v5.825h566.49v-5.825c0-7.379-2.849-13.981-7.509-18.9-5.049-193.016-97.867-351.985-220.2-389.527 123.24-37.67 216.446-198.453 220.588-392.892zM531.16 450.445v352.632c117.674 1.553 211.787 40.778 211.787 88.676H304.097c0-48.286 95.149-87.382 213.728-88.676V450.445c-93.077-3.107-167.901-81.297-167.901-177.093 0-8.803 6.99-15.793 15.793-15.793 8.803 0 15.794 6.99 15.794 15.793 0 80.261 63.69 145.635 142.01 145.635s142.011-65.374 142.011-145.635c0-8.803 6.99-15.793 15.794-15.793s15.793 6.99 15.793 15.793c0 95.019-73.789 172.82-165.96 177.093z"></path></svg><span>大约 4 分钟</span><meta property="timeRequired" content="PT4M"></span><!----><!----></div><hr></div><div class="vp-toc-placeholder"><aside id="toc" vp-toc><!----><!--[--><div class="vp-toc-header">此页内容<button type="button" class="print-button" title="打印"><svg xmlns="http://www.w3.org/2000/svg" class="icon print-icon" viewBox="0 0 1024 1024" fill="currentColor" aria-label="print icon" name="print"><path d="M819.2 364.8h-44.8V128c0-17.067-14.933-32-32-32H281.6c-17.067 0-32 14.933-32 32v236.8h-44.8C145.067 364.8 96 413.867 96 473.6v192c0 59.733 49.067 108.8 108.8 108.8h44.8V896c0 17.067 14.933 32 32 32h460.8c17.067 0 32-14.933 32-32V774.4h44.8c59.733 0 108.8-49.067 108.8-108.8v-192c0-59.733-49.067-108.8-108.8-108.8zM313.6 160h396.8v204.8H313.6V160zm396.8 704H313.6V620.8h396.8V864zM864 665.6c0 25.6-19.2 44.8-44.8 44.8h-44.8V588.8c0-17.067-14.933-32-32-32H281.6c-17.067 0-32 14.933-32 32v121.6h-44.8c-25.6 0-44.8-19.2-44.8-44.8v-192c0-25.6 19.2-44.8 44.8-44.8h614.4c25.6 0 44.8 19.2 44.8 44.8v192z"></path></svg></button><div class="arrow end"></div></div><div class="vp-toc-wrapper"><ul class="vp-toc-list"><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level2" href="#_1-概述">1. 概述</a></li><!----><!--]--><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level2" href="#_2-前置要求">2. 前置要求</a></li><!----><!--]--><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level2" href="#_3-检查项">3. 检查项</a></li><!----><!--]--><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level2" href="#_4-使用方法">4. 使用方法</a></li><li><ul class="vp-toc-list"><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level3" href="#_4-1-命令格式">4.1 命令格式</a></li><!----><!--]--><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level3" href="#_4-2-参数说明">4.2 参数说明</a></li><!----><!--]--></ul></li><!--]--><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level2" href="#_5-使用方法">5. 使用方法</a></li><li><ul class="vp-toc-list"><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level3" href="#_5-1-示例-1-检查全部">5.1 示例 1：检查全部</a></li><!----><!--]--><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level3" href="#_5-2-示例-2-检查本机">5.2 示例 2：检查本机</a></li><!----><!--]--><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level3" href="#_5-3-示例-3-检查远程">5.3 示例 3：检查远程</a></li><!----><!--]--></ul></li><!--]--><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level2" href="#_6-常见问题">6. 常见问题</a></li><li><ul class="vp-toc-list"><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level3" href="#_6-1-如何调整内存分配">6.1 如何调整内存分配</a></li><!----><!--]--><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level3" href="#_6-2-如何修改最大打开数文件">6.2 如何修改最大打开数文件</a></li><!----><!--]--><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level3" href="#_6-3-如何禁用-swap-及禁用原因">6.3 如何禁用 Swap 及禁用原因</a></li><!----><!--]--></ul></li><!--]--></ul><div class="vp-toc-marker" style="top:-1.7rem;"></div></div><!--]--><!----></aside></div><!----><div class="theme-hope-content" vp-content><h1 id="健康检查工具" tabindex="-1"><a class="header-anchor" href="#健康检查工具"><span>健康检查工具</span></a></h1><h2 id="_1-概述" tabindex="-1"><a class="header-anchor" href="#_1-概述"><span>1. 概述</span></a></h2><p>IoTDB 健康检查工具是一个用于检测 IoTDB 节点运行环境的工具。它可以帮助用户在安装部署数据库前或运行期间检查节点的运行环境，并获取详细的检查结果。</p><blockquote><p>IoTDB版本要求：不能低于v1.3.2</p></blockquote><h2 id="_2-前置要求" tabindex="-1"><a class="header-anchor" href="#_2-前置要求"><span>2. 前置要求</span></a></h2><p>Linux 系统</p><ul><li><code>nc</code>（netcat）工具：默认已安装，用户需要有权限执行。</li><li><code>lsof</code> 或 <code>netstat</code>：至少安装其中一个，用户需要有权限执行。</li></ul><blockquote><p>检查相应工具是否已安装：</p><p>检查 <code>nc</code> 是否安装：<code>nc -h</code></p><p>检查 <code>lsof</code> 是否安装：<code>lsof -v</code></p></blockquote><p>Windows 系统</p><ul><li>PowerShell：默认已启动。</li></ul><h2 id="_3-检查项" tabindex="-1"><a class="header-anchor" href="#_3-检查项"><span>3. 检查项</span></a></h2><ul><li>检查节点所在服务器的端口占用情况（windows/linux）</li><li>检查当前节点与集群中其他节点的端口连通性（windows/linux）</li><li>检查系统中是否安装了 JDK（java_home）（windows/linux）</li><li>检查系统内存分配情况，检查 IoTDB 内存分配情况（windows/linux）</li><li>检查目录访问权限（windows/linux）</li><li>检查系统最大打开文件数是否满足要求（>= 65535）（仅 linux）</li><li>检查系统是否禁用了 swap（windows/linux）</li></ul><h2 id="_4-使用方法" tabindex="-1"><a class="header-anchor" href="#_4-使用方法"><span>4. 使用方法</span></a></h2><h3 id="_4-1-命令格式" tabindex="-1"><a class="header-anchor" href="#_4-1-命令格式"><span>4.1 命令格式</span></a></h3><div class="language-bash line-numbers-mode" data-highlighter="shiki" data-ext="bash" data-title="bash" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code><span class="line"><span style="color:#61AFEF;">health_check.sh/health_check.bat</span><span style="color:#D19A66;"> -ips</span><span style="color:#ABB2BF;"><</span><span style="color:#D19A66;">远程服务器IP+端口</span><span style="color:#ABB2BF;">></span><span style="color:#98C379;"> ,</span><span style="color:#D19A66;"> -o</span><span style="color:#ABB2BF;"> <</span><span style="color:#98C379;">all</span><span style="color:#ABB2BF;">(</span><span style="color:#61AFEF;">default</span><span style="color:#ABB2BF;">)</span><span style="color:#98C379;">/remote/loca</span><span style="color:#ABB2BF;">l></span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div></div></div><h3 id="_4-2-参数说明" tabindex="-1"><a class="header-anchor" href="#_4-2-参数说明"><span>4.2 参数说明</span></a></h3><table><thead><tr><th><strong>参数</strong></th><th><strong>说明</strong></th><th><strong>是否必填</strong></th></tr></thead><tbody><tr><td><code>-ips</code></td><td>远程服务器 IP 和端口，支持检查多个服务器，格式如下：<code>ip port1 port2，ip2 port2-1 port2-2</code></td><td>非必填</td></tr><tr><td><code>-o</code></td><td>检查参数，可选值为<code>local</code>（本机检查）、<code>remote</code>（远程服务器端口连接性检查）、<code>all</code>（本机和远程服务器端口一起检查），默认值为<code>all</code></td><td>非必填</td></tr></tbody></table><h2 id="_5-使用方法" tabindex="-1"><a class="header-anchor" href="#_5-使用方法"><span>5. 使用方法</span></a></h2><h3 id="_5-1-示例-1-检查全部" tabindex="-1"><a class="header-anchor" href="#_5-1-示例-1-检查全部"><span>5.1 示例 1：检查全部</span></a></h3><div class="language-bash line-numbers-mode" data-highlighter="shiki" data-ext="bash" data-title="bash" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code><span class="line"><span style="color:#61AFEF;">health_check.sh/health_check.bat</span><span style="color:#D19A66;"> -ips</span><span style="color:#D19A66;"> 172.20.31.19</span><span style="color:#D19A66;"> 6667</span><span style="color:#98C379;"> 18080,10.0.6.230</span><span style="color:#D19A66;"> 10311</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div></div></div><p>输出结果：</p><div class="language-bash line-numbers-mode" data-highlighter="shiki" data-ext="bash" data-title="bash" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code><span class="line"><span style="color:#61AFEF;">Check:</span><span style="color:#98C379;"> Installation</span><span style="color:#98C379;"> Environment</span><span style="color:#ABB2BF;">(</span><span style="color:#61AFEF;">JDK</span><span style="color:#ABB2BF;">)</span></span> |
| <span class="line"><span style="color:#61AFEF;">Requirement:</span><span style="color:#98C379;"> JDK</span><span style="color:#98C379;"> Version</span><span style="color:#ABB2BF;"> ></span><span style="color:#98C379;">=</span><span style="color:#D19A66;">1.8</span></span> |
| <span class="line"><span style="color:#61AFEF;">Result:</span><span style="color:#98C379;"> JDK</span><span style="color:#98C379;"> Version</span><span style="color:#D19A66;"> 11.0.21</span></span> |
| <span class="line"></span> |
| <span class="line"><span style="color:#61AFEF;">Check:</span><span style="color:#98C379;"> Installation</span><span style="color:#98C379;"> Environment</span><span style="color:#ABB2BF;">(</span><span style="color:#61AFEF;">Memory</span><span style="color:#ABB2BF;">)</span></span> |
| <span class="line"><span style="color:#61AFEF;">Requirement:</span><span style="color:#98C379;"> Allocate</span><span style="color:#98C379;"> sufficient</span><span style="color:#98C379;"> memory</span><span style="color:#98C379;"> for</span><span style="color:#98C379;"> IoTDB</span></span> |
| <span class="line"><span style="color:#61AFEF;">Result:</span><span style="color:#98C379;"> Total</span><span style="color:#98C379;"> Memory</span><span style="color:#98C379;"> 7.8Gi,</span><span style="color:#D19A66;"> 2.33</span><span style="color:#98C379;"> G</span><span style="color:#98C379;"> allocated</span><span style="color:#98C379;"> to</span><span style="color:#98C379;"> IoTDB</span><span style="color:#98C379;"> ConfigNode,</span><span style="color:#D19A66;"> 3.88</span><span style="color:#98C379;"> G</span><span style="color:#98C379;"> allocated</span><span style="color:#98C379;"> to</span><span style="color:#98C379;"> IoTDB</span><span style="color:#98C379;"> DataNode</span></span> |
| <span class="line"></span> |
| <span class="line"><span style="color:#61AFEF;">Check:</span><span style="color:#98C379;"> Installation</span><span style="color:#98C379;"> Environment</span><span style="color:#ABB2BF;">(</span><span style="color:#61AFEF;">Directory</span><span style="color:#98C379;"> Access</span><span style="color:#ABB2BF;">)</span></span> |
| <span class="line"><span style="color:#61AFEF;">Requirement:</span><span style="color:#98C379;"> IoTDB</span><span style="color:#98C379;"> needs</span><span style="color:#98C379;"> data/datanode/data,data/datanode/consensus,data/datanode/system,data/datanode/wal,data/confignode/system,data/confignode/consensus,ext/pipe,ext/udf,ext/trigger</span><span style="color:#98C379;"> write</span><span style="color:#98C379;"> permission.</span></span> |
| <span class="line"><span style="color:#61AFEF;">Result:</span><span style="color:#ABB2BF;"> </span></span> |
| <span class="line"><span style="color:#61AFEF;">data/datanode/data</span><span style="color:#98C379;"> has</span><span style="color:#98C379;"> write</span><span style="color:#98C379;"> permission</span></span> |
| <span class="line"><span style="color:#61AFEF;">data/datanode/consensus</span><span style="color:#98C379;"> has</span><span style="color:#98C379;"> write</span><span style="color:#98C379;"> permission</span></span> |
| <span class="line"><span style="color:#61AFEF;">data/datanode/system</span><span style="color:#98C379;"> has</span><span style="color:#98C379;"> write</span><span style="color:#98C379;"> permission</span></span> |
| <span class="line"><span style="color:#61AFEF;">data/datanode/wal</span><span style="color:#98C379;"> has</span><span style="color:#98C379;"> write</span><span style="color:#98C379;"> permission</span></span> |
| <span class="line"><span style="color:#61AFEF;">data/confignode/system</span><span style="color:#98C379;"> has</span><span style="color:#98C379;"> write</span><span style="color:#98C379;"> permission</span></span> |
| <span class="line"><span style="color:#61AFEF;">data/confignode/consensus</span><span style="color:#98C379;"> has</span><span style="color:#98C379;"> write</span><span style="color:#98C379;"> permission</span></span> |
| <span class="line"><span style="color:#61AFEF;">ext/pipe</span><span style="color:#98C379;"> has</span><span style="color:#98C379;"> write</span><span style="color:#98C379;"> permission</span></span> |
| <span class="line"><span style="color:#61AFEF;">ext/udf</span><span style="color:#98C379;"> has</span><span style="color:#98C379;"> write</span><span style="color:#98C379;"> permission</span></span> |
| <span class="line"><span style="color:#61AFEF;">ext/trigger</span><span style="color:#98C379;"> has</span><span style="color:#98C379;"> write</span><span style="color:#98C379;"> permission</span></span> |
| <span class="line"></span> |
| <span class="line"><span style="color:#61AFEF;">Check:</span><span style="color:#98C379;"> Network</span><span style="color:#ABB2BF;">(</span><span style="color:#61AFEF;">Local</span><span style="color:#98C379;"> Port</span><span style="color:#ABB2BF;">)</span></span> |
| <span class="line"><span style="color:#61AFEF;">Requirement:</span><span style="color:#98C379;"> Port</span><span style="color:#D19A66;"> 16668</span><span style="color:#D19A66;"> 10730</span><span style="color:#D19A66;"> 11742</span><span style="color:#D19A66;"> 10750</span><span style="color:#D19A66;"> 10760</span><span style="color:#D19A66;"> 10710</span><span style="color:#D19A66;"> 10720</span><span style="color:#98C379;"> is</span><span style="color:#98C379;"> not</span><span style="color:#98C379;"> occupied</span></span> |
| <span class="line"><span style="color:#61AFEF;">Result:</span><span style="color:#ABB2BF;"> </span></span> |
| <span class="line"><span style="color:#61AFEF;">Port</span><span style="color:#D19A66;"> 16668</span><span style="color:#D19A66;"> 10730</span><span style="color:#D19A66;"> 11742</span><span style="color:#D19A66;"> 10750</span><span style="color:#D19A66;"> 10760</span><span style="color:#D19A66;"> 10710</span><span style="color:#D19A66;"> 10720</span><span style="color:#98C379;"> is</span><span style="color:#98C379;"> free</span></span> |
| <span class="line"></span> |
| <span class="line"><span style="color:#61AFEF;">Check:</span><span style="color:#98C379;"> Network</span><span style="color:#ABB2BF;">(</span><span style="color:#61AFEF;">Remote</span><span style="color:#98C379;"> Port</span><span style="color:#98C379;"> Connectivity</span><span style="color:#ABB2BF;">)</span></span> |
| <span class="line"><span style="color:#61AFEF;">Requirement:</span><span style="color:#98C379;"> 172.20.31.19:6667</span><span style="color:#D19A66;"> 18080</span><span style="color:#98C379;"> ,10.0.6.230:10311</span><span style="color:#98C379;"> need</span><span style="color:#98C379;"> to</span><span style="color:#98C379;"> be</span><span style="color:#98C379;"> accessible</span></span> |
| <span class="line"><span style="color:#61AFEF;">Result:</span><span style="color:#ABB2BF;"> </span></span> |
| <span class="line"><span style="color:#61AFEF;">The</span><span style="color:#98C379;"> following</span><span style="color:#98C379;"> server</span><span style="color:#98C379;"> ports</span><span style="color:#98C379;"> are</span><span style="color:#98C379;"> inaccessible:</span></span> |
| <span class="line"><span style="color:#61AFEF;">IP:</span><span style="color:#98C379;"> 10.0.6.230,</span><span style="color:#98C379;"> Ports:</span><span style="color:#D19A66;"> 10311</span><span style="color:#ABB2BF;"> </span></span> |
| <span class="line"></span> |
| <span class="line"><span style="color:#61AFEF;">Check:</span><span style="color:#98C379;"> System</span><span style="color:#98C379;"> Settings</span><span style="color:#ABB2BF;">(</span><span style="color:#61AFEF;">Maximum</span><span style="color:#98C379;"> Open</span><span style="color:#98C379;"> Files</span><span style="color:#98C379;"> Number</span><span style="color:#ABB2BF;">)</span></span> |
| <span class="line"><span style="color:#61AFEF;">Requirement:</span><span style="color:#ABB2BF;"> ></span><span style="color:#98C379;">=</span><span style="color:#D19A66;"> 65535</span></span> |
| <span class="line"><span style="color:#61AFEF;">Result:</span><span style="color:#D19A66;"> 65535</span></span> |
| <span class="line"></span> |
| <span class="line"><span style="color:#61AFEF;">Check:</span><span style="color:#98C379;"> System</span><span style="color:#98C379;"> Settings</span><span style="color:#ABB2BF;">(</span><span style="color:#61AFEF;">Swap</span><span style="color:#ABB2BF;">)</span></span> |
| <span class="line"><span style="color:#61AFEF;">Requirement:</span><span style="color:#98C379;"> disabled</span></span> |
| <span class="line"><span style="color:#61AFEF;">Result:</span><span style="color:#98C379;"> disabled.</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="_5-2-示例-2-检查本机" tabindex="-1"><a class="header-anchor" href="#_5-2-示例-2-检查本机"><span>5.2 示例 2：检查本机</span></a></h3><div class="language-bash line-numbers-mode" data-highlighter="shiki" data-ext="bash" data-title="bash" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code><span class="line"><span style="color:#61AFEF;">health_check.sh/health_check.bat</span><span style="color:#D19A66;"> -o</span><span style="color:#98C379;"> local</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div></div></div><p>输出结果：</p><div class="language-bash line-numbers-mode" data-highlighter="shiki" data-ext="bash" data-title="bash" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code><span class="line"><span style="color:#61AFEF;">Check:</span><span style="color:#98C379;"> Installation</span><span style="color:#98C379;"> Environment</span><span style="color:#ABB2BF;">(</span><span style="color:#61AFEF;">JDK</span><span style="color:#ABB2BF;">)</span></span> |
| <span class="line"><span style="color:#61AFEF;">Requirement:</span><span style="color:#98C379;"> JDK</span><span style="color:#98C379;"> Version</span><span style="color:#ABB2BF;"> ></span><span style="color:#98C379;">=</span><span style="color:#D19A66;">1.8</span></span> |
| <span class="line"><span style="color:#61AFEF;">Result:</span><span style="color:#98C379;"> JDK</span><span style="color:#98C379;"> Version</span><span style="color:#D19A66;"> 11.0.21</span></span> |
| <span class="line"></span> |
| <span class="line"><span style="color:#61AFEF;">Check:</span><span style="color:#98C379;"> Installation</span><span style="color:#98C379;"> Environment</span><span style="color:#ABB2BF;">(</span><span style="color:#61AFEF;">Memory</span><span style="color:#ABB2BF;">)</span></span> |
| <span class="line"><span style="color:#61AFEF;">Requirement:</span><span style="color:#98C379;"> Allocate</span><span style="color:#98C379;"> sufficient</span><span style="color:#98C379;"> memory</span><span style="color:#98C379;"> for</span><span style="color:#98C379;"> IoTDB</span></span> |
| <span class="line"><span style="color:#61AFEF;">Result:</span><span style="color:#98C379;"> Total</span><span style="color:#98C379;"> Memory</span><span style="color:#98C379;"> 7.8Gi,</span><span style="color:#D19A66;"> 2.33</span><span style="color:#98C379;"> G</span><span style="color:#98C379;"> allocated</span><span style="color:#98C379;"> to</span><span style="color:#98C379;"> IoTDB</span><span style="color:#98C379;"> ConfigNode,</span><span style="color:#D19A66;"> 3.88</span><span style="color:#98C379;"> G</span><span style="color:#98C379;"> allocated</span><span style="color:#98C379;"> to</span><span style="color:#98C379;"> IoTDB</span><span style="color:#98C379;"> DataNode</span></span> |
| <span class="line"></span> |
| <span class="line"><span style="color:#61AFEF;">Check:</span><span style="color:#98C379;"> Installation</span><span style="color:#98C379;"> Environment</span><span style="color:#ABB2BF;">(</span><span style="color:#61AFEF;">Directory</span><span style="color:#98C379;"> Access</span><span style="color:#ABB2BF;">)</span></span> |
| <span class="line"><span style="color:#61AFEF;">Requirement:</span><span style="color:#98C379;"> IoTDB</span><span style="color:#98C379;"> needs</span><span style="color:#98C379;"> data/datanode/data,data/datanode/consensus,data/datanode/system,data/datanode/wal,data/confignode/system,data/confignode/consensus,ext/pipe,ext/udf,ext/trigger</span><span style="color:#98C379;"> write</span><span style="color:#98C379;"> permission.</span></span> |
| <span class="line"><span style="color:#61AFEF;">Result:</span><span style="color:#ABB2BF;"> </span></span> |
| <span class="line"><span style="color:#61AFEF;">data/datanode/data</span><span style="color:#98C379;"> has</span><span style="color:#98C379;"> write</span><span style="color:#98C379;"> permission</span></span> |
| <span class="line"><span style="color:#61AFEF;">data/datanode/consensus</span><span style="color:#98C379;"> has</span><span style="color:#98C379;"> write</span><span style="color:#98C379;"> permission</span></span> |
| <span class="line"><span style="color:#61AFEF;">data/datanode/system</span><span style="color:#98C379;"> has</span><span style="color:#98C379;"> write</span><span style="color:#98C379;"> permission</span></span> |
| <span class="line"><span style="color:#61AFEF;">data/datanode/wal</span><span style="color:#98C379;"> has</span><span style="color:#98C379;"> write</span><span style="color:#98C379;"> permission</span></span> |
| <span class="line"><span style="color:#61AFEF;">data/confignode/system</span><span style="color:#98C379;"> has</span><span style="color:#98C379;"> write</span><span style="color:#98C379;"> permission</span></span> |
| <span class="line"><span style="color:#61AFEF;">data/confignode/consensus</span><span style="color:#98C379;"> has</span><span style="color:#98C379;"> write</span><span style="color:#98C379;"> permission</span></span> |
| <span class="line"><span style="color:#61AFEF;">ext/pipe</span><span style="color:#98C379;"> has</span><span style="color:#98C379;"> write</span><span style="color:#98C379;"> permission</span></span> |
| <span class="line"><span style="color:#61AFEF;">ext/udf</span><span style="color:#98C379;"> has</span><span style="color:#98C379;"> write</span><span style="color:#98C379;"> permission</span></span> |
| <span class="line"><span style="color:#61AFEF;">ext/trigger</span><span style="color:#98C379;"> has</span><span style="color:#98C379;"> write</span><span style="color:#98C379;"> permission</span></span> |
| <span class="line"></span> |
| <span class="line"><span style="color:#61AFEF;">Check:</span><span style="color:#98C379;"> Network</span><span style="color:#ABB2BF;">(</span><span style="color:#61AFEF;">Local</span><span style="color:#98C379;"> Port</span><span style="color:#ABB2BF;">)</span></span> |
| <span class="line"><span style="color:#61AFEF;">Requirement:</span><span style="color:#98C379;"> Port</span><span style="color:#D19A66;"> 16668</span><span style="color:#D19A66;"> 10730</span><span style="color:#D19A66;"> 11742</span><span style="color:#D19A66;"> 10750</span><span style="color:#D19A66;"> 10760</span><span style="color:#D19A66;"> 10710</span><span style="color:#D19A66;"> 10720</span><span style="color:#98C379;"> is</span><span style="color:#98C379;"> not</span><span style="color:#98C379;"> occupied</span></span> |
| <span class="line"><span style="color:#61AFEF;">Result:</span><span style="color:#ABB2BF;"> </span></span> |
| <span class="line"><span style="color:#61AFEF;">Port</span><span style="color:#D19A66;"> 16668</span><span style="color:#D19A66;"> 10730</span><span style="color:#D19A66;"> 11742</span><span style="color:#D19A66;"> 10750</span><span style="color:#D19A66;"> 10760</span><span style="color:#D19A66;"> 10710</span><span style="color:#D19A66;"> 10720</span><span style="color:#98C379;"> is</span><span style="color:#98C379;"> free</span></span> |
| <span class="line"></span> |
| <span class="line"><span style="color:#61AFEF;">Check:</span><span style="color:#98C379;"> System</span><span style="color:#98C379;"> Settings</span><span style="color:#ABB2BF;">(</span><span style="color:#61AFEF;">Maximum</span><span style="color:#98C379;"> Open</span><span style="color:#98C379;"> Files</span><span style="color:#98C379;"> Number</span><span style="color:#ABB2BF;">)</span></span> |
| <span class="line"><span style="color:#61AFEF;">Requirement:</span><span style="color:#ABB2BF;"> ></span><span style="color:#98C379;">=</span><span style="color:#D19A66;"> 65535</span></span> |
| <span class="line"><span style="color:#61AFEF;">Result:</span><span style="color:#D19A66;"> 65535</span></span> |
| <span class="line"></span> |
| <span class="line"><span style="color:#61AFEF;">Check:</span><span style="color:#98C379;"> System</span><span style="color:#98C379;"> Settings</span><span style="color:#ABB2BF;">(</span><span style="color:#61AFEF;">Swap</span><span style="color:#ABB2BF;">)</span></span> |
| <span class="line"><span style="color:#61AFEF;">Requirement:</span><span style="color:#98C379;"> disabled</span></span> |
| <span class="line"><span style="color:#61AFEF;">Result:</span><span style="color:#98C379;"> disabled.</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="_5-3-示例-3-检查远程" tabindex="-1"><a class="header-anchor" href="#_5-3-示例-3-检查远程"><span>5.3 示例 3：检查远程</span></a></h3><div class="language-bash line-numbers-mode" data-highlighter="shiki" data-ext="bash" data-title="bash" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code><span class="line"><span style="color:#61AFEF;">health_check.sh/health_check.bat</span><span style="color:#D19A66;"> -o</span><span style="color:#98C379;"> remote</span><span style="color:#D19A66;"> -ips</span><span style="color:#D19A66;"> 172.20.31.19</span><span style="color:#D19A66;"> 6667</span><span style="color:#98C379;"> 18080,10.0.6.230</span><span style="color:#D19A66;"> 10311</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div></div></div><p>输出结果：</p><div class="language-bash line-numbers-mode" data-highlighter="shiki" data-ext="bash" data-title="bash" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code><span class="line"><span style="color:#61AFEF;">Check:</span><span style="color:#98C379;"> Network</span><span style="color:#ABB2BF;">(</span><span style="color:#61AFEF;">Remote</span><span style="color:#98C379;"> Port</span><span style="color:#98C379;"> Connectivity</span><span style="color:#ABB2BF;">)</span></span> |
| <span class="line"><span style="color:#61AFEF;">Requirement:</span><span style="color:#98C379;"> 172.20.31.19:6667</span><span style="color:#D19A66;"> 18080</span><span style="color:#98C379;"> ,10.0.6.230:10311</span><span style="color:#98C379;"> need</span><span style="color:#98C379;"> to</span><span style="color:#98C379;"> be</span><span style="color:#98C379;"> accessible</span></span> |
| <span class="line"><span style="color:#61AFEF;">Result:</span><span style="color:#ABB2BF;"> </span></span> |
| <span class="line"><span style="color:#61AFEF;">The</span><span style="color:#98C379;"> following</span><span style="color:#98C379;"> server</span><span style="color:#98C379;"> ports</span><span style="color:#98C379;"> are</span><span style="color:#98C379;"> inaccessible:</span></span> |
| <span class="line"><span style="color:#61AFEF;">IP:</span><span style="color:#98C379;"> 10.0.6.230,</span><span style="color:#98C379;"> Ports:</span><span style="color:#D19A66;"> 10311</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h2 id="_6-常见问题" tabindex="-1"><a class="header-anchor" href="#_6-常见问题"><span>6. 常见问题</span></a></h2><h3 id="_6-1-如何调整内存分配" tabindex="-1"><a class="header-anchor" href="#_6-1-如何调整内存分配"><span>6.1 如何调整内存分配</span></a></h3><ul><li>修改<code>confignode-env.sh</code>中的MEMORY_SIZE</li><li>修改<code>datanode-env.sh</code>中的MEMORY_SIZE</li></ul><h3 id="_6-2-如何修改最大打开数文件" tabindex="-1"><a class="header-anchor" href="#_6-2-如何修改最大打开数文件"><span>6.2 如何修改最大打开数文件</span></a></h3><ul><li>设置系统最大打开文件数为 65535，以避免出现 "太多的打开文件 "的错误。</li></ul><div class="language-bash line-numbers-mode" data-highlighter="shiki" data-ext="bash" data-title="bash" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code><span class="line"><span style="color:#7F848E;font-style:italic;">#查看当前限制</span></span> |
| <span class="line"><span style="color:#56B6C2;">ulimit</span><span style="color:#D19A66;"> -n</span></span> |
| <span class="line"><span style="color:#7F848E;font-style:italic;"># 临时修改</span></span> |
| <span class="line"><span style="color:#56B6C2;">ulimit</span><span style="color:#D19A66;"> -n</span><span style="color:#D19A66;"> 65535</span></span> |
| <span class="line"><span style="color:#7F848E;font-style:italic;"># 永久修改</span></span> |
| <span class="line"><span style="color:#56B6C2;">echo</span><span style="color:#98C379;"> "* soft nofile 65535"</span><span style="color:#ABB2BF;"> >> </span><span style="color:#98C379;">/etc/security/limits.conf</span></span> |
| <span class="line"><span style="color:#56B6C2;">echo</span><span style="color:#98C379;"> "* hard nofile 65535"</span><span style="color:#ABB2BF;"> >> </span><span style="color:#98C379;">/etc/security/limits.conf</span></span> |
| <span class="line"><span style="color:#7F848E;font-style:italic;">#退出当前终端会话后查看，预期显示65535</span></span> |
| <span class="line"><span style="color:#56B6C2;">ulimit</span><span style="color:#D19A66;"> -n</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="_6-3-如何禁用-swap-及禁用原因" tabindex="-1"><a class="header-anchor" href="#_6-3-如何禁用-swap-及禁用原因"><span>6.3 如何禁用 Swap 及禁用原因</span></a></h3><ul><li>禁用原因：IoTDB 使用 Swap 会导致性能下降，建议禁用。</li><li>禁用方式：</li></ul><div class="language-bash line-numbers-mode" data-highlighter="shiki" data-ext="bash" data-title="bash" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code><span class="line"><span style="color:#56B6C2;">echo</span><span style="color:#98C379;"> "vm.swappiness = 0"</span><span style="color:#ABB2BF;">>> </span><span style="color:#98C379;">/etc/sysctl.conf</span></span> |
| <span class="line"><span style="color:#7F848E;font-style:italic;"># 一起执行 swapoff -a 和 swapon -a 命令是为了将 swap 里的数据转储回内存，并清空 swap 里的数据。</span></span> |
| <span class="line"><span style="color:#7F848E;font-style:italic;"># 不可省略 swappiness 设置而只执行 swapoff -a；否则，重启后 swap 会再次自动打开，使得操作失效。</span></span> |
| <span class="line"><span style="color:#61AFEF;">swapoff</span><span style="color:#D19A66;"> -a</span><span style="color:#ABB2BF;"> && </span><span style="color:#61AFEF;">swapon</span><span style="color:#D19A66;"> -a</span></span> |
| <span class="line"><span style="color:#7F848E;font-style:italic;"># 在不重启的情况下使配置生效。</span></span> |
| <span class="line"><span style="color:#61AFEF;">sysctl</span><span style="color:#D19A66;"> -p</span></span> |
| <span class="line"><span style="color:#7F848E;font-style:italic;"># 检查内存分配，预期 swap 为 0</span></span> |
| <span class="line"><span style="color:#61AFEF;">free</span><span style="color:#D19A66;"> -m</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div></div><!----><footer class="vp-page-meta"><div class="vp-meta-item edit-link"><a class="auto-link external-link vp-meta-label" href="https://github.com/apache/iotdb-docs/edit/main/src/zh/UserGuide/V1.3.x/Tools-System/Health-Check-Tool.md" aria-label="发现错误？在 GitHub 上编辑此页" rel="noopener noreferrer" target="_blank" iconsizing="both"><!--[--><svg xmlns="http://www.w3.org/2000/svg" class="icon edit-icon" viewBox="0 0 1024 1024" fill="currentColor" aria-label="edit icon" name="edit"><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<!----></a></div><div class="vp-meta-item git-info"><div class="update-time"><span class="vp-meta-label">上次编辑于: </span><span class="vp-meta-info" data-allow-mismatch="text">2025/3/13 01:57:36</span></div><!----></div></footer><nav class="vp-page-nav"><a class="route-link auto-link prev" href="/zh/UserGuide/V1.3.x/Tools-System/Backup-Tool.html" aria-label="全量备份工具(V1.3.2)" iconsizing="both"><div class="hint"><span class="arrow start"></span>上一页</div><div class="link"><!---->全量备份工具(V1.3.2)</div></a><!----></nav><!----><!----><!--]--></main><!--]--><footer class="site-footer"><span id="doc-version" style="display:none;">V1.3.x</span><p class="copyright-text">版权所有 © 2025 Apache软件基金会。 |
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