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class="vp-sidebar-links"></ul><!----></aside><!--[--><main id="main-content" class="vp-page"><!--[--><!----><!----><nav class="vp-breadcrumb disable"></nav><div class="vp-page-title"><h1><!---->配置项修改介绍</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">2024/7/19</span><meta property="datePublished" content="2024-07-19T09:58:20.000Z"></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 2 分钟</span><meta property="timeRequired" content="PT2M"></span><!----><!----></div><hr></div><!----><div class="" vp-content><!----><div id="markdown-content"><h1 id="配置项修改介绍" tabindex="-1"><a class="header-anchor" href="#配置项修改介绍"><span>配置项修改介绍</span></a></h1><h2 id="设置方式" tabindex="-1"><a class="header-anchor" href="#设置方式"><span>设置方式</span></a></h2><ul><li>使用sql语句修改【推荐】</li><li>直接修改配置文件【不推荐】</li></ul><h2 id="生效方式" tabindex="-1"><a class="header-anchor" href="#生效方式"><span>生效方式</span></a></h2><ul><li>第一次启动后不可修改 (first_start)</li><li>重启后生效 (restart)</li><li>热加载 (hot_reload)</li></ul><h1 id="直接修改配置文件" tabindex="-1"><a class="header-anchor" href="#直接修改配置文件"><span>直接修改配置文件</span></a></h1><p>可以通过重启或以下命令生效</p><h2 id="热加载配置命令" tabindex="-1"><a class="header-anchor" href="#热加载配置命令"><span>热加载配置命令</span></a></h2><p>使支持热加载的配置项改动立即生效。<br> 对于已经写在配置文件中修改过的配置项，从配置文件中删除或注释后再进行 load configuration 将恢复默认值。</p><div class="language- line-numbers-mode" data-highlighter="shiki" data-ext="" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code class="language-"><span class="line"><span>load configuration</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div></div></div><h1 id="配置项操作语句" tabindex="-1"><a class="header-anchor" href="#配置项操作语句"><span>配置项操作语句</span></a></h1><p>设置配置项</p><div class="language- line-numbers-mode" data-highlighter="shiki" data-ext="" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code class="language-"><span class="line"><span>set configuration 'key1' = 'value1' 'key2' = 'value2'... (on nodeId)</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="示例1" tabindex="-1"><a class="header-anchor" href="#示例1"><span>示例1</span></a></h3><div class="language- line-numbers-mode" data-highlighter="shiki" data-ext="" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code class="language-"><span class="line"><span>set configuration 'enable_cross_space_compaction' = 'false'</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>对集群所有节点永久生效，设置 enable_cross_space_compaction 为 false，并写入到 iotdb-system.properties 中。</p><h3 id="示例2" tabindex="-1"><a class="header-anchor" href="#示例2"><span>示例2</span></a></h3><div class="language- line-numbers-mode" data-highlighter="shiki" data-ext="" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code class="language-"><span class="line"><span>set configuration 'enable_cross_space_compaction' ='false' 'enable_seq_space_compaction' = 'false' on 1</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>对 nodeId 为 1 的节点永久生效，设置 enable_cross_space_compaction 为 false，设置 enable_seq_space_compaction 为 false，并写入到 iotdb-system.properties 中。</p><h3 id="示例3" tabindex="-1"><a class="header-anchor" href="#示例3"><span>示例3</span></a></h3><div class="language- line-numbers-mode" data-highlighter="shiki" data-ext="" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code class="language-"><span class="line"><span>set configuration 'enable_cross_space_compaction' = 'false' 'timestamp_precision' = 'ns'</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>对集群所有节点永久生效，设置 enable_cross_space_compaction 为 false，timestamp_precision 为 ns，并写入到 iotdb-system.properties 中。但是，timestamp_precision 是第一次启动后就无法修改的配置项，因此会忽略这个配置项的更新，返回如下。</p><div class="language- line-numbers-mode" data-highlighter="shiki" data-ext="" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code class="language-"><span class="line"><span>Msg: org.apache.iotdb.jdbc.IoTDBSQLException: 301: ignored config items: [timestamp_precision]</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div></div></div><h1 id="生效配置项" tabindex="-1"><a class="header-anchor" href="#生效配置项"><span>生效配置项</span></a></h1><p>支持热加载立即生效的配置项在 iotdb-system.properties.template 文件中标记 effectiveMode 为 hot_reload<br> 示例</p><div class="language- line-numbers-mode" data-highlighter="shiki" data-ext="" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code class="language-"><span class="line"><span># Used for indicate cluster name and distinguish different cluster.</span></span> |
| <span class="line"><span># If you need to modify the cluster name, it's recommended to use [set configuration 'cluster_name'='xxx'] sql.</span></span> |
| <span class="line"><span># Manually modifying configuration file is not recommended, which may cause node restart fail.</span></span> |
| <span class="line"><span># effectiveMode: hot_reload</span></span> |
| <span class="line"><span># Datatype: string</span></span> |
| <span class="line"><span>cluster_name=defaultCluster</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></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/dev-1.3/Reference/Modify-Config-Manual.md" aria-label="发现错误？在 GitHub 上编辑此页" rel="noopener noreferrer" target="_blank"><!--[--><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">最近更新: </span><time class="vp-meta-info" datetime="2025-07-09T09:05:35.000Z" data-allow-mismatch>2025/7/9 09:05</time></div><!----></div></footer><!----><!----><!----><!--]--></main><!--]--><footer class="site-footer"><span id="doc-version" style="display:none;">dev-1.3</span><p class="copyright-text">版权所有 © 2026 Apache软件基金会。 |
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