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<h1><span class="section-number">7.3.31. </span><code class="docutils literal notranslate"><span class="pre">log_reopen</span></code><a class="headerlink" href="#log-reopen" title="Permalink to this headline">¶</a></h1>
<div class="section" id="summary">
<h2><span class="section-number">7.3.31.1. </span>Summary<a class="headerlink" href="#summary" title="Permalink to this headline">¶</a></h2>
<p><code class="docutils literal notranslate"><span class="pre">log_reopen</span></code> is a command that reloads log files.</p>
<p>It is used to reload log files such as groonga log or query log which
are specified by <code class="docutils literal notranslate"><span class="pre">--log-path</span></code> or <code class="docutils literal notranslate"><span class="pre">--query-log-path</span></code> options.</p>
<div class="admonition note">
<p class="admonition-title">Note</p>
<p>This command only works when the number of worker processes is equal to 1.
Thus, it means that if you use <code class="docutils literal notranslate"><span class="pre">groonga-httpd</span></code> with 2 or more workers, you must use
<code class="docutils literal notranslate"><span class="pre">groonga-httpd</span> <span class="pre">-s</span> <span class="pre">reopen</span></code> instead.</p>
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<div class="section" id="syntax">
<h2><span class="section-number">7.3.31.2. </span>Syntax<a class="headerlink" href="#syntax" title="Permalink to this headline">¶</a></h2>
<p>This command takes no parameters:</p>
<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>log_reopen
</pre></div>
</div>
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<div class="section" id="usage">
<h2><span class="section-number">7.3.31.3. </span>Usage<a class="headerlink" href="#usage" title="Permalink to this headline">¶</a></h2>
<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>log_reopen
[true]
</pre></div>
</div>
<div class="section" id="lotate-log-files-with-log-reopen">
<h3><span class="section-number">7.3.31.3.1. </span>Lotate log files with <cite>log_reopen</cite><a class="headerlink" href="#lotate-log-files-with-log-reopen" title="Permalink to this headline">¶</a></h3>
<ol class="arabic simple">
<li><p>Rename target log files such as mv command.
(Log content is still written into moved log files)</p></li>
<li><p>Execute <code class="docutils literal notranslate"><span class="pre">log_reopen</span></code> command.</p></li>
<li><p>New log file is created as same as existing log file name.
newer log content is written to new log file.</p></li>
</ol>
</div>
</div>
<div class="section" id="parameters">
<h2><span class="section-number">7.3.31.4. </span>Parameters<a class="headerlink" href="#parameters" title="Permalink to this headline">¶</a></h2>
<p>There is no required parameter.</p>
</div>
<div class="section" id="return-value">
<h2><span class="section-number">7.3.31.5. </span>Return value<a class="headerlink" href="#return-value" title="Permalink to this headline">¶</a></h2>
<p>The command returns <code class="docutils literal notranslate"><span class="pre">true</span></code> as body if the command succeeds such as:</p>
<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>[HEADER, true]
</pre></div>
</div>
<p>The command returns <code class="docutils literal notranslate"><span class="pre">false</span></code> otherwise such as:</p>
<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>[HEADER, false]
</pre></div>
</div>
</div>
<div class="section" id="see-also">
<h2><span class="section-number">7.3.31.6. </span>See also<a class="headerlink" href="#see-also" title="Permalink to this headline">¶</a></h2>
<p><a class="reference internal" href="log_level.html"><span class="doc">log_level</span></a>
<a class="reference internal" href="log_put.html"><span class="doc">log_put</span></a></p>
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<h3><a href="../../index.html">Table of Contents</a></h3>
<ul>
<li><a class="reference internal" href="#">7.3.31. <code class="docutils literal notranslate"><span class="pre">log_reopen</span></code></a><ul>
<li><a class="reference internal" href="#summary">7.3.31.1. Summary</a></li>
<li><a class="reference internal" href="#syntax">7.3.31.2. Syntax</a></li>
<li><a class="reference internal" href="#usage">7.3.31.3. Usage</a><ul>
<li><a class="reference internal" href="#lotate-log-files-with-log-reopen">7.3.31.3.1. Lotate log files with <cite>log_reopen</cite></a></li>
</ul>
</li>
<li><a class="reference internal" href="#parameters">7.3.31.4. Parameters</a></li>
<li><a class="reference internal" href="#return-value">7.3.31.5. Return value</a></li>
<li><a class="reference internal" href="#see-also">7.3.31.6. See also</a></li>
</ul>
</li>
</ul>
<h4>Previous topic</h4>
<p class="topless"><a href="log_put.html"
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title="next chapter"><span class="section-number">7.3.32. </span><code class="docutils literal notranslate"><span class="pre">logical_count</span></code></a></p>
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