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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>About 1 min</span><meta property="timeRequired" content="PT1M"></span><!----><!----></div><hr></div><div class="vp-toc-placeholder"><aside id="toc"><!--[--><!----><!--]--><div class="vp-toc-header">On This Page<button type="button" class="print-button" title="Print"><svg xmlns="http://www.w3.org/2000/svg" class="icon print-icon" viewBox="0 0 1024 1024" fill="currentColor" aria-label="print icon"><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="#mlogload-tool">MLogLoad Tool</a></li><li><ul class="vp-toc-list"><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level3" href="#introduction">Introduction</a></li><!----><!--]--><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level3" href="#how-to-use">How to Use</a></li><!----><!--]--><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level3" href="#example">Example</a></li><!----><!--]--><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level3" href="#q-a">Q&amp;A</a></li><!----><!--]--></ul></li><!--]--></ul><div class="vp-toc-marker" style="top:-1.7rem;"></div></div><!--[--><!----><!--]--></aside></div><!--[--><!----><!--]--><div class="theme-hope-content"><h2 id="mlogload-tool" tabindex="-1"><a class="header-anchor" href="#mlogload-tool"><span>MLogLoad Tool</span></a></h2><h3 id="introduction" tabindex="-1"><a class="header-anchor" href="#introduction"><span>Introduction</span></a></h3><p>The MLogLoad tool is used to load the metadata from <code>mlog.bin</code> and tags and attributes from <code>tlog.txt</code> into the running IoTDB.<br> Metadata operation in <code>mlog.bin</code> will be replayed.<br> Metedata to be loaded that conflicts with metadata in the running IoTDB will be skipped.</p><p>If there is already metadata in the running IoTDB, to avoid replaying the delete operation to affect the existing metadata, it needs to be loaded using <code>mlog.bin</code> and <code>tlog.txt</code> obtained from the <a href="https://iotdb.apache.org/UserGuide/V0.13.x/Maintenance-Tools/Export-Schema-Tool.html" target="_blank" rel="noopener noreferrer">export metadata operation<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>.</p><h3 id="how-to-use" tabindex="-1"><a class="header-anchor" href="#how-to-use"><span>How to Use</span></a></h3><p>Linux/MacOS</p><blockquote><p>./mLogLoad.sh -mlog /yourpath/mlog.bin -tlog /yourpath/tlog.txt -h 127.0.0.1 -p 6667 -u root -pw root</p></blockquote><p>Windows</p><blockquote><p>./mLogLoad.bat -mlog /yourpath/mlog.bin -tlog /yourpath/tlog.txt -h 127.0.0.1 -p 6667 -u root -pw root</p></blockquote><div class="language-text line-numbers-mode" data-ext="text" data-title="text"><pre class="language-text"><code>usage: MLogLoad -mlog &lt;mlog file&gt; [-tlog &lt;tlog file&gt;] [-h &lt;receiver host&gt;]
       [-p &lt;receiver port&gt;] [-u &lt;user&gt;] [-pw &lt;password&gt;] [-help]
 -mlog &lt;mlog file&gt;    Need to specify a binary mlog.bin file to parse
                      (required)
 -tlog &lt;tlog file&gt;    Could specify a binary tlog.txt file to parse. Tags
                      and attributes will be ignored if not specified
                      (optional)
 -h &lt;receiver host&gt;   Could specify a specify the receiver host, default
                      is 127.0.0.1 (optional)
 -p &lt;receiver port&gt;   Could specify a specify the receiver port, default
                      is 6667 (optional)
 -u &lt;user&gt;            Could specify the user name, default is root
                      (optional)
 -pw &lt;password&gt;       Could specify the 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 class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>Note: If tlog is not specified, the MLogLoad tool will ignore tags and attributes management.</p><h3 id="example" tabindex="-1"><a class="header-anchor" href="#example"><span>Example</span></a></h3><p>The purpose is to load the local metadata file <code>/yourpath/mlog.bin</code> into IoTDB instance running on server 192.168.0.101:6667.</p><p>Enter to the directory where <a href="http://mLogLoad.sh" target="_blank" rel="noopener noreferrer">mLogLoad.sh<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> is located and execute the following statement:</p><div class="language-text line-numbers-mode" data-ext="text" data-title="text"><pre class="language-text"><code>./mLogLoad.sh -mlog &quot;/yourpath/mlog.bin&quot; -h 192.168.0.101 -p 6667 -u root -pw root
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>After waiting for the script execution to complete, you can check that the metadata in the IoTDB instance has been loaded correctly.</p><h3 id="q-a" tabindex="-1"><a class="header-anchor" href="#q-a"><span>Q&amp;A</span></a></h3><ul><li>Cannot find or load the main class MLoadLoader <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></ul></div><!--[--><!----><!--]--><footer class="vp-page-meta"><div class="vp-meta-item edit-link"><a href="https://github.com/apache/iotdb-docs/edit/main/src/UserGuide/V0.13.x/Maintenance-Tools/MLogLoad-Tool.md" rel="noopener noreferrer" target="_blank" aria-label="Found Error? Edit this page on GitHub" class="nav-link vp-meta-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="vp-meta-item git-info"><div class="update-time"><span class="vp-meta-label">Last update: </span><!----></div><!----></div></footer><nav class="vp-page-nav"><a class="route-link nav-link prev" href="/UserGuide/V0.13.x/Maintenance-Tools/MLogParser-Tool.html" aria-label="MLogParser Tool"><div class="hint"><span class="arrow start"></span>Prev</div><div class="link"><!---->MLogParser Tool</div></a><a class="route-link nav-link next" href="/UserGuide/V0.13.x/Maintenance-Tools/Export-Schema-Tool.html" aria-label="Export Schema Tool"><div class="hint">Next<span class="arrow end"></span></div><div class="link">Export Schema Tool<!----></div></a></nav><!----><!--[--><!----><!--]--><!--]--></main><!--]--><footer style="padding-bottom:2rem;"><span id="doc-version" style="display:none;">rel/0.13</span><p style="text-align:center;color:#909399;font-size:12px;margin:0 30px;">Copyright © 2024 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></footer></div><!--]--><!--]--><!--[--><!----><!--]--><!--]--></div>
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