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• Apache Tomcat 7 or later. Tomcat can be downloaded from the following location: http://tomcat.apache.org.
  
  • The Tomcat owner (i.e. the user that Tomcat runs as)  must have read/write access to the DSpace installation directory (i.e. [dspace]). There are a few common ways this may be achieved:

    • One option is to specifically give the Tomcat user (often named "tomcat") ownership of the [dspace] directories, for example:

      Code Block
      # Change [dspace] and all subfolders to be owned by "tomcat" chown -R tomcat:tomcat [dspace]

      
      

    • Another option is to have Tomcat itself run as a new user named "dspace" (see installation instructions below).  Some operating systems make modifying the Tomcat "run as" user easily modifiable via an environment variable named TOMCAT_USER.  This option may be more desireable if you have multiple Tomcat instances running, and you do not want all of them to run under the same Tomcat owner.
  • You need to ensure that Tomcat has a) enough memory to run DSpace and b) uses UTF-8 as its default file encoding for international character support. So ensure in your startup scripts (etc) that the following environment variable is set: JAVA_OPTS="-Xmx512M -Xms64M -Dfile.encoding=UTF-8"

  • Modifications in [tomcat]/conf/server.xml : You also need to alter Tomcat's default configuration to support searching and browsing of multi-byte UTF-8 correctly. You need to add a configuration option to the <Connector> element in [tomcat]/config/server.xml: URIEncoding="UTF-8" e.g. if you're using the default Tomcat config, it should read:

    Code Block
    language html/xml
    <!-- Define a non-SSL HTTP/1.1 Connector on port 8080 --> <Connector port="8080" maxThreads="150" minSpareThreads="25" maxSpareThreads="75" enableLookups="false" redirectPort="8443" acceptCount="100" connectionTimeout="20000" disableUploadTimeout="true" URIEncoding="UTF-8"/>

    You may change the port from 8080 by editing it in the file above, and by setting the variable CONNECTOR_PORT in server.xml.  You should set the URIEncoding even if you are running Tomcat behind a proxy (Apache HTTPD, Nginx, etc.) via AJP.

  • Tomcat 8 and above is using at least Java 1.7 for JSP compilation. However, by default, Tomcat 7 uses Java 1.6 for JSP compilation. If you want to use Java 1.7 in your .jsp files, you have to change the configuration of Tomcat 7. Edit the file called web.xml in the configuration directory of your Tomcat instance (${CATALINA_HOME}/conf in Tomcat notation). Look for a servlet definition using the org.apache.jasper.servlet.JSPServlet servlet-class and add two init parameters compilerSourceVM and compilerTargetVM as you see it in the example below. Then restart Tomcat.

    Code Block
    language xml title ${CATALINA_BASE}/conf/web.xml
    <servlet> <servlet-name>jsp</servlet-name> <servlet-class>org.apache.jasper.servlet.JspServlet</servlet-class> <init-param> <param-name>fork</param-name> <param-value>false</param-value> </init-param> <init-param> <param-name>xpoweredBy</param-name> <param-value>false</param-value> </init-param> <init-param> <param-name>compilerSourceVM</param-name> <param-value>1.7</param-value> </init-param> <init-param> <param-name>compilerTargetVM</param-name> <param-value>1.7</param-value> </init-param> <load-on-startup>3</load-on-startup> </servlet>

    
    

• Jetty or Caucho Resin DSpace will also run on an equivalent servlet Engine, such as Jetty (httphttps://www.mortbayeclipse.org/jetty/index.html) or Caucho Resin (http://www.caucho.com/). Jetty and Resin are configured for correct handling of UTF-8 by default.

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