Preparing for Installation › Prerequisites › Memory Settings and Hardware Requirements › Where Are the Memory Settings and How Are They Changed?

Where Are the Memory Settings and How Are They Changed?

Change the memory settings according to the product you are using.

Java Web Application Server

Add or change the following Java parameters when you launch the Java Web application server.

• -Xms – the initial heap size when the Java application is starting
• -Xmx – the maximum heap size

  For example, if you set -Xms1024m and Xmx2048m as your parameters, the Java virtual machines do the following functions:

  • allocate 1024 MB at the beginning
  • allow up to 2048 MB of memory usage at runtime

The Apache Tomcat Java Web application server that the installer installs.

Go to the install directory, find the appropriate file, and change the settings:

Windows:

In apache-tomcat/bin/catalina.bat, find the line:

set CATALINA_OPTS=-Xms256m -Xmx2048m …

Make your requirement changes.

Windows – registered as a Windows service:

In apache-tomcat/bin/service.bat, find the string:

JvmMs 256 --JvmMx 2048

Make your requirement changes.

Note: Reinstall the service as follows:

1. Remove the existing service: service.bat

2. Reinstall the service: service.bat

Other operating systems:

In the apache-tomcat/bin/catalina.sh, find the line:

CATALINA_OPTS="-Xms256m -Xmx2048m…

Make your requirement changes.