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<div class="left-nav__overlay"></div>
<article data-swiftype-index='true'>
<a class='edit-link' href="https://github.com/apache/ignite/tree/IGNITE-7595/docs/_docs/logging.adoc" target="_blank">Edit</a>
<h1>Configuring Logging</h1>
<div class="sect1">
<h2 id="overview">Overview</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Ignite supports a number of logging libraries and frameworks:</p>
</div>
<div class="ulist">
<ul>
<li>
<p>JUL (default),</p>
</li>
<li>
<p>Log4j,</p>
</li>
<li>
<p>Log4j2,</p>
</li>
<li>
<p>JCL,</p>
</li>
<li>
<p>SLF4J.</p>
</li>
</ul>
</div>
<div class="paragraph">
<p>This section shows you how to set up the logger.</p>
</div>
<div class="paragraph">
<p>When a node starts, it outputs start-up information to the console, including the information about the configured logging library. Each logging library has its own configuration parameters and should be set up according to its official documentation. Besides library-specific configuration, there is a number of system properties that allow you to tune logging. These properties are presented in the following table.</p>
</div>
<table class="tableblock frame-all grid-all stripes-even stretch">
<colgroup>
<col style="width: 20%;">
<col style="width: 60%;">
<col style="width: 20%;">
</colgroup>
<thead>
<tr>
<th class="tableblock halign-left valign-top">System Property</th>
<th class="tableblock halign-left valign-top">Description</th>
<th class="tableblock halign-left valign-top">Default Value</th>
</tr>
</thead>
<tbody>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>IGNITE_LOG_INSTANCE_NAME</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">If the property is set, Ignite includes its instance name in log messages.</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">Not set</p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>IGNITE_QUIET</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">Set to <code>false</code> to disable the quiet mode and enable the verbose mode.
In the verbose mode, the node logs a lot more information.</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>true</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>IGNITE_LOG_DIR</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">The directory where Ignite writes log files.</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>$IGNITE_HOME/
work/log</code></p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><code>IGNITE_DUMP_THREADS_ON_FAILURE</code></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">Set to <code>tr