assets/Export-Schema-Tool.html-17192cb1.js

import{_ as i,C as o,O as n,P as r,ah as s,Q as e,U as t,ai as d,aW as l}from"./framework-e4340ccd.js";const c={},h=l(`<h2 id="export-schema" tabindex="-1"><a class="header-anchor" href="#export-schema" aria-hidden="true">#</a> Export Schema</h2><p>The schema export operation exports the information about store group, timeseries, and schema template in the current IoTDB in the form of <code>mlog.bin</code> and <code>tlog.txt</code> to the specified directory.</p><p>The exported <code>mlog.bin</code> and <code>tlog.txt</code> files can be incrementally loaded into an IoTDB instance.</p><h3 id="export-schema-with-sql" tabindex="-1"><a class="header-anchor" href="#export-schema-with-sql" aria-hidden="true">#</a> Export Schema with SQL</h3><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>EXPORT SCHEMA &#39;&lt;path/dir&gt;&#39; 
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h3 id="export-schema-with-script" tabindex="-1"><a class="header-anchor" href="#export-schema-with-script" aria-hidden="true">#</a> Export Schema with Script</h3><p>Linux/MacOS</p><blockquote><p>./exportSchema.sh -d /yourpath/data/system/schema -o /yourpath/targetDir</p></blockquote><p>Windows</p><blockquote><p>./exportSchema.bat-d /yourpath/data/system/schema -o /yourpath/targetDir</p></blockquote><p>Export destination directory on server need to be specified when exporting metadata using scripting. Note that the target directory path must be absolute path.</p><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>usage: ExportSchema -o &lt;target directory path&gt; [-h &lt;host address&gt;] [-p &lt;port&gt;] [-u &lt;user&gt;] [-pw &lt;password&gt;] [-help]
 -o &lt;target directory path&gt;   Need to specify a absolute target directory
                              path on server（required)
 -h &lt;host address&gt;            Could specify a specify the IoTDB host
                              address, default is 127.0.0.1 (optional)
 -p &lt;port&gt;                    Could specify a specify the IoTDB port,
                              default is 6667 (optional)
 -u &lt;user&gt;                    Could specify the IoTDB user name, default
                              is root (optional)
 -pw &lt;password&gt;               Could specify the IoTDB password, default is
                              root (optional)
 -help,--help                 Display help information
</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 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="q-a" tabindex="-1"><a class="header-anchor" href="#q-a" aria-hidden="true">#</a> Q&amp;A</h3><ul><li>Cannot find or load the main class ExportSchema <ul><li>It may be because the environment variable $IOTDB_HOME is not set, please set the environment variable and try again</li></ul></li><li>Encounter an error, because: File ... already exist. <ul><li>There is already a mlog.bin or tlog.txt file in the target directory, please check the target directory and try again</li></ul></li></ul><h3 id="load-schema" tabindex="-1"><a class="header-anchor" href="#load-schema" aria-hidden="true">#</a> Load Schema</h3>`,15),p={href:"https://iotdb.apache.org/UserGuide/V0.13.x/Maintenance-Tools/MLogLoad-Tool.html",target:"_blank",rel:"noopener noreferrer"};function u(m,g){const a=o("ExternalLinkIcon");return n(),r("div",null,[s(`

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`),h,e("p",null,[t("Please refer to "),e("a",p,[t("MLogLoad Tool"),d(a)])])])}const x=i(c,[["render",u],["__file","Export-Schema-Tool.html.vue"]]);export{x as default};