Modify the Java memory settings

The Java Virtual Machine (JVM) determines the default settings for your Java application:

JAVA_OPTS="-Xms256m -Xmx512m"

The Tomcat server uses CATALINA_OPTS to set these Java settings when running:

CATALINA_OPTS="-Xms256M -Xmx768M"

You can increase these settings if necessary by following the steps below:

Linux and Mac OS X

• Modify the settings file installdir/apache-tomcat/bin/setenv.sh:

  $ export CATALINA_OPTS="$CATALINA_OPTS -Xms256M -Xmx768M"
  

  NOTE: You could also modify the Java Virtual Machine (JVM) settings if you prefer.

     $ export JAVA_OPTS="$JAVA_OPTS -Xms256M -Xmx768M"
  

• Restart Tomcat after modifying the file:

  $ installdir/ctlscript.sh restart tomcat
  

Windows

• Modify the settings file installdir/apache-tomcat/bin/setenv.bat:

  $ SET CATALINA_OPTS="%CATALINA_OPTS% -Xms256M -Xmx768M"
  

  NOTE: You could also modify the Java Virtual Machine (JVM) settings if you prefer.

     $ SET JAVA_OPTS="%JAVA_OPTS% -Xms256M -Xmx768M"
  

• Reinstall the services after modifying the file, as shown below. Run the following commands from an elevated command prompt:

  $ cd installdir
  $ serviceinstall.bat UNINSTALL
  $ serviceinstall.bat INSTALL