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<li class="nav-item nav-item-this"><a href=""><span class="section-number">7.18. </span>Configuration</a></li>
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<div class="section" id="configuration">
<h1><span class="section-number">7.18. </span>Configuration<a class="headerlink" href="#configuration" title="Permalink to this headline">¶</a></h1>
<div class="versionadded">
<p><span class="versionmodified added">New in version 5.1.2.</span></p>
</div>
<p>Groonga can manage configuration items in each database. These
configuration items are persistent. It means that these configuration
items are usable after a Groonga process exits.</p>
<div class="section" id="summary">
<h2><span class="section-number">7.18.1. </span>Summary<a class="headerlink" href="#summary" title="Permalink to this headline">¶</a></h2>
<p>You can change some Groonga behaviors such as <a class="reference internal" href="../spec/search.html"><span class="doc">検索</span></a> by
some ways such as request parameter
(<a class="reference internal" href="commands/select.html#select-match-escalation-threshold"><span class="std std-ref">match_escalation_threshold</span></a>) and build parameter
(<a class="reference internal" href="../install/others.html#install-configure-with-match-escalation-threshold"><span class="std std-ref">--with-match-escalation-threshold=NUMBER</span></a>).</p>
<p>Configuration is one of these ways. You can change some Groonga
behaviors per database by configuration.</p>
<p>A configuration item consists of key and value. Both of key and value
are string. The max key size is 4KiB. The max value size is 4091B (=
4KiB - 5B).</p>
<p>You can set a configuration item by
<a class="reference internal" href="commands/config_set.html"><span class="doc">config_set</span></a>.</p>
<p>You can get a configuration item by
<a class="reference internal" href="commands/config_get.html"><span class="doc">config_get</span></a>.</p>
<p>You can delete a configuration item by
<a class="reference internal" href="commands/config_delete.html"><span class="doc">config_delete</span></a>.</p>
<p>You can confirm all configuration items by
<a class="reference internal" href="commands/dump.html"><span class="doc">dump</span></a>.</p>
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<div class="section" id="commands">
<span id="configuration-commands"></span><h2><span class="section-number">7.18.2. </span>Commands<a class="headerlink" href="#commands" title="Permalink to this headline">¶</a></h2>
<blockquote>
<div><ul class="simple">
<li><p><a class="reference internal" href="commands/config_delete.html"><span class="doc">config_delete</span></a></p></li>
<li><p><a class="reference internal" href="commands/config_get.html"><span class="doc">config_get</span></a></p></li>
<li><p><a class="reference internal" href="commands/config_set.html"><span class="doc">config_set</span></a></p></li>
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<li><a class="reference internal" href="#">7.18. Configuration</a><ul>
<li><a class="reference internal" href="#summary">7.18.1. Summary</a></li>
<li><a class="reference internal" href="#commands">7.18.2. Commands</a></li>
</ul>
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title="previous chapter"><span class="section-number">7.17.2. </span>Prefix RK search</a></p>
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