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--><h1 id="tsfileselfcheck-tool" tabindex="-1"><a class="header-anchor" href="#tsfileselfcheck-tool" aria-hidden="true">#</a> TsFileSelfCheck Tool</h1><p>IoTDB Server provides the TsFile self check tool. At present, the tool can check the basic format of the TsFile file, the correctness of TimeseriesMetadata, and the correctness and consistency of the Statistics stored in each part of the TsFile.</p><h2 id="use" tabindex="-1"><a class="header-anchor" href="#use" aria-hidden="true">#</a> Use</h2><p>Step 1：Create an object instance of TsFileSelfCheckTool class.</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>Step 2：Call the check method of the self check tool. The first parameter path is the path of the TsFile to be checked. The second parameter is whether to check only the Magic String and Version Number at the beginning and end of TsFile.</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>There are four return values of the check method.</li><li>The return value is 0, which means that the TsFile self check is error-free.</li><li>The return value is -1, which means that TsFile has inconsistencies in Statistics. There will be two specific exceptions, one is that the Statistics of TimeSeriesMetadata is inconsistent with the Statistics of the aggregated statistics of ChunkMetadata. The other is that the Statistics of ChunkMetadata is inconsistent with the Statistics of Page aggregation statistics in the Chunk indexed by it.</li><li>The return value is -2, which means that the TsFile version is not compatible.</li><li>The return value is -3, which means that the TsFile file does not exist in the given path.</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/UserGuide/Maintenance-Tools/TsFileSelfCheck-Tool.md" rel="noopener noreferrer" target="_blank" aria-label="Found Error? Edit this page on GitHub" 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><!--]-->Found Error? Edit this page on GitHub<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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