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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/code-deployment/deploying-user-code.adoc" target="_blank">Edit</a>
<h1>Deploying User Code</h1>
<div id="preamble">
<div class="sectionbody">
<div class="paragraph">
<p>In addition to <a href="/docs/2.9.0/code-deployment/peer-class-loading">peer class loading</a>, you can deploy user code by configuring <code>UriDeploymentSpi</code>. With this approach, you specify the location of your libraries in the node configuration.
Ignite scans the location periodically and redeploys the classes if they change.
The location may be a file system directory or an HTTP(S) location.
When Ignite detects that the libraries are removed from the location, the classes are undeployed from the cluster.</p>
</div>
<div class="paragraph">
<p>You can specify multiple locations (of different types) by providing both directory paths and http(s) URLs.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="deploying-from-a-local-directory">Deploying from a Local Directory</h2>
<div class="sectionbody">
<div class="paragraph">
<p>To deploy libraries from a file system directory, add the directory path to the list of URIs in the <code>UriDeploymentSpi</code> configuration.
The directory must exist on the nodes where it is specified and contain jar files with the classes you want to deploy.
Note that the path must be specified using the "file://" scheme.
You can specify different directories on different nodes.</p>
</div>
<code-tabs><code-tab data-tab='XML'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="xml"><span class="nt">&lt;bean</span> <span class="na">class=</span><span class="s">"org.apache.ignite.configuration.IgniteConfiguration"</span><span class="nt">&gt;</span>
<span class="nt">&lt;property</span> <span class="na">name=</span><span class="s">"deploymentSpi"</span><span class="nt">&gt;</span>
<span class="nt">&lt;bean</span> <span class="na">class=</span><span class="s">"org.apache.ignite.spi.deployment.uri.UriDeploymentSpi"</span><span class="nt">&gt;</span>
<span class="nt">&lt;property</span> <span class="na">name=</span><span class="s">"temporaryDirectoryPath"</span> <span class="na">value=</span><span class="s">"/tmp/temp_ignite_libs"</span><span class="nt">/&gt;</span>
<span class="nt">&lt;property</span> <span class="na">name=</span><span class="s">"uriList"</span><span class="nt">&gt;</span>
<span class="nt">&lt;list&gt;</span>
<span class="nt">&lt;value&gt;</span>file://freq=2000@localhost/home/username/user_libs<span class="nt">&lt;/value&gt;</span>
<span class="nt">&lt;/list&gt;</span>
<span class="nt">&lt;/property&gt;</span>
<span class="nt">&lt;/bean&gt;</span>
<span class="nt">&lt;/property&gt;</span>
<span class="nt">&lt;/bean&gt;</span></code></pre>
</div>
</div></code-tab><code-tab data-tab='Java'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="java"><span class="nc">IgniteConfiguration</span> <span class="n">cfg</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">IgniteConfiguration</span><span class="o">();</span>
<span class="nc">UriDeploymentSpi</span> <span class="n">deploymentSpi</span> <span class="o">=</span> <span class=