If you used the installation wizard to install the Pentaho Server on a Windows machine, you can increase the server's memory limits by editing the Java memory settings for Tomcat. Tomcat is the web application server that the Pentaho Server runs on.
Note: If you are running Pentaho on a Linux machine, see Increase Pentaho Server memory limit for installations on Linux. If you performed a custom installation, see “Configure and start the Pentaho Server after manual installation” in the Install Pentaho Data Integration and Analytics document.
Perform the following steps to increase the Pentaho Server memory limit for Windows:
Your Tomcat server now has increased minimum and maximum memory limits. You can adjust the
JvmMx parameter to a higher number if you prefer. However, if
the Java virtual machine refuses to start with increased limits, then you will have to
add more RAM to your system, stop some memory-intensive services, or reduce the maximum
memory limit. This problem occurs when there is not enough contiguous memory available
to assign to the JVM.