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Modify the Java memory settings

Before running the commands shown on this page, you should load the Bitnami stack environment by executing the installdir/use_APPNAME script (Linux and MacOS) or by clicking the shortcut in the Start Menu under “Start -> Bitnami APPNAME Stack -> Application console” (Windows). On OS X VMs, the installation directory is /opt/bitnami and OS X VM users can click the “Open Terminal” button to run commands. Learn more about the Bitnami stack environment and about OS X VMs.

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
    
Last modification September 5, 2018