assets/TsFileSelfCheck-Tool.html-91a87034.js

import{_ as e,O as a,P as n,ah as s,aW as i}from"./framework-62ad666a.js";const t={},l=i(`<h2 id="tsfile-自检工具" tabindex="-1"><a class="header-anchor" href="#tsfile-自检工具" aria-hidden="true">#</a> TsFile 自检工具</h2><p>IoTDB Server 提供了 TsFile 自检工具，目前该工具可以检查 TsFile 文件中的基本格式、TimeseriesMetadata 的正确性以及 TsFile 中各部分存储的 Statistics 的正确性和一致性。</p><h3 id="使用" tabindex="-1"><a class="header-anchor" href="#使用" aria-hidden="true">#</a> 使用</h3><p>第一步：创建一个 TsFileSelfCheckTool 类的对象。</p><div class="language-java line-numbers-mode" data-ext="java"><pre class="language-java"><code><span class="token class-name">TsFileSelfCheckTool</span> tool <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">TsFileSelfCheckTool</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>第二步：调用自检工具的 check 方法。第一个参数 path 是要检测的 TsFile 的路径。第二个参数是是否只检测 TsFile 开头和结尾的 Magic String 和 Version Number。</p><div class="language-java line-numbers-mode" data-ext="java"><pre class="language-java"><code>tool<span class="token punctuation">.</span><span class="token function">check</span><span class="token punctuation">(</span>path<span class="token punctuation">,</span> <span class="token boolean">false</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><ul><li>check 方法的返回值有四种。</li><li>返回值为 0 表示 TsFile 自检无错。</li><li>返回值为 -1 表示 TsFile 存在 Statistics 不一致问题。具体会有两种异常，一种是 TimeSeriesMetadata 的 Statistics 与其后面的 ChunkMetadata 的聚合统计的 Statistics 不一致。另一种是 ChunkMetadata 的 Statistics 与其索引的 Chunk 中的 Page 聚合统计的 Statistics 不一致。</li><li>返回值为 -2 表示 TsFile 版本不兼容。</li><li>返回值为 -3 表示给定路径不存在 TsFile 文件。</li></ul>`,8);function o(c,r){return a(),n("div",null,[s(`

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`),l])}const d=e(t,[["render",o],["__file","TsFileSelfCheck-Tool.html.vue"]]);export{d as default};