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<h1 class="title">Running Fuseki with UI</h1>
<p>Fuseki/UI can be run in a number of ways:</p>
<ul>
<li><a href="#fuseki-standalone-server">As a standalone server</a></li>
<li><a href="#fuseki-service">As a service</a> run by the operation system, for example, started when the machine boots</li>
<li><a href="#fuseki-web-application">As a Web Application</a> inside a container such as Apache Tomcat or Jetty.</li>
</ul>
<p>Fuseki is also packaged as a plain server <a href="fuseki-main.html">&ldquo;Fuseki Main&rdquo;</a>
with no UI for use as a configurable SPARQL server, for <a href="fuseki-docker.html">building as a Docker
container</a>, and as a deployment and development standalone
server. It supports the arguments used by the standalone server.</p>
<p>The configuration file is the same format for all forms of the Fuseki server.</p>
<p>See &ldquo;<a href="fuseki-configuration.html">Fuseki Configuration</a>&rdquo; for information on
how to provide datasets and configure services using the configuration file.</p>
<h2 id="fuseki-standalone-server">Fuseki as a Standalone Server</h2>
<p>This is running Fuseki from the command line.</p>
<p>To publish at <tt>http://<i>host</i>:3030/NAME</i></tt>:</p>
<p>where <code>/NAME</code> is the dataset publishing name at this server in URI space.</p>
<p>TDB2 database:</p>
<pre><code>fuseki-server [--loc=DIR] [[--update] /NAME]
</code></pre>
<p>The <code>--loc</code> directory is either a TDB1 or TDB2 database.
The directory <code>DIR</code> must exist.
If the database in <code>DIR</code> does not exist, then a new database is created. By
default this is a TDB2 database unoess teh argument &ndash;tdb1 is given.</p>
<p>An in-memory, non-peristent database (always updatable) is:</p>
<pre><code>fuseki-server --mem /NAME
</code></pre>
<p>Load a file at start and provide it read-only:</p>
<pre><code>fuseki-server --file=MyData.ttl /NAME
</code></pre>
<p>where <code>MyData.ttl</code> can be any RDF format, both triples or quads.</p>
<p>Administrative functions are only available from &ldquo;localhost&rdquo;.</p>
<p>See <code>fuseki-server --help</code> for details of more arguments.</p>
<h2 id="layout">Layout</h2>
<p>When run from the command line, the server creates its work area in the
directory named by environment variable <code>FUSEKI_BASE</code>. When run from the
command line, this defaults to the current directory.</p>
<p><a href="fuseki-layout.html">Fuseki layout</a></p>
<p>If you get the error message <code>Can't find jarfile to run</code> then you either
need to put a copy of <code>fuseki-server.jar</code> in the current directory or set
the environment variable <code>FUSEKI_HOME</code> to point to an unpacked Fuseki
distribution.</p>
<p>Starting with no dataset and no configuration is possible.
Datasets can be added from the admin UI to a running server.</p>
<h2 id="fuseki-service">Fuseki as a Service</h2>
<p>Fuseki can run as an operating system service, started when the server
machine boots. The script <code>fuseki</code> is a Linux <code>init.d</code> with the common
secondary arguments of <code>start</code> and <code>stop</code>.</p>
<p>Process arguments are read from <code>/etc/default/fuseki</code> including
<code>FUSEKI_HOME</code> and <code>FUSEKI_BASE</code>. <code>FUSEKI_HOME</code> should be the directory
where the distribution was unpacked.</p>
<h2 id="fuseki-web-application">Fuseki as a Web Application</h2>
<p>Fuseki can run from a
<a href="http://en.wikipedia.org/wiki/WAR_%28file_format%29">WAR</a> file.</p>
<p>The war file can be downloaded from the <a href="/download/">project downloads page</a>. It
should then be renamed to the webapp name &ldquo;ROOT.war&rdquo; (this means there no name
in the URL) or &ldquo;fuseki.war&rdquo; (with a name <code>/fuseki/</code>) or some other choice of
name.</p>
<p><code>FUSEKI_HOME</code> is not applicable.</p>
<p><code>FUSEKI_BASE</code> defaults to <code>/etc/fuseki</code> which must be a writeable
directory. It is initialised the first time Fuseki runs, including a
<a href="http://shiro.apache.org/">Apache Shiro</a> security file but this is only
intended as a starting point. It restricts use of the admin UI to the
local machine.</p>
<p>When deploying as a web application a more fully featured Admin API is
made available and described on the
<a href="fuseki-server-protocol.html">Fuseki Server Protocol (REST API)</a> page.</p>
<h2 id="configuring-logging">Configuring logging</h2>
<p>When running from a WAR file in a webapp container such as Apache Tomcat, the
logging configuration comes from the file <code>log4j2.properties</code> in the root of the
unpacked war file, e.g. <code>/var/lib/tomcat9/webapps/fuseki/log4j2.properties</code>.</p>
<p>The name of the file is taken from <code>web.xml</code>:</p>
<p><context-param>
<param-name>log4jConfiguration</param-name>
<param-value>log4j2.properties</param-value>
</context-param></p>
<p>This only applies when running in a webapp container. When run from the command
line, the server looks for <code>log4j2.properties</code> in the current directory and if
not found, uses a built-in configuration.</p>
<p>This logging goes to the standard output.</p>
<h2 id="fuseki-with-tomcat9-and-systemd">Fuseki with Tomcat9 and systemd</h2>
<p><code>systemd</code> may be set to sandbox Tomcat9. The file area <code>/etc/fuseki</code> will not
be writable to Fuseki. To enable this area, add <code>ReadWritePaths=/etc/fuseki/</code> to
the file <code>/etc/systemd/system/tomcat9.service.d/override.conf</code>,
creating the file if necessary.</p>
<p><code>systemd</code> also captures standard out and routes it to the system journal:</p>
<pre><code> journalctl -u tomcat9
</code></pre><p>To direct the output to the traditional location of
/var/log/tomcat9/catalina.out use the <code>StandardOutput</code> setting in <code>override.conf</code>:</p>
<pre><code> [Service]
# Allow access to the Fuseki area
ReadWritePaths=/etc/fuseki/
StandardOutput=file:/var/log/tomcat9/catalina.out
</code></pre>
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