By default, the Java heap memory is set to 1 GB each for the User Auth, Kerberos Auth, and Virtual App services, and to 4 GB for the Directory Sync service. You can increase the maximum heap size for any of the services based on your requirements or if you experience memory issues.

Symptoms of memory issues include slow performance and out of memory error messages.


  1. Log in to the Windows server in which the Workspace ONE Access enterprise service is installed.
  2. Navigate to the INSTALL_DIR\Workspace ONE Access\serviceName folder.
  3. Open the serviceName.xml file in a text editor.
  4. Change the Xmx1g entry to Xmxng where n is the maximum heap memory you want to allocate.
    For example: Xmx5g
  5. Save the file.
  6. Restart the service.