Changing individual node settings by modifying the prconfig.xml file
Although it is a best practice to change system configuration settings by modifying the dynamic system settings, you can also change individual node settings by modifying system settings in the prconfig.xml file.
CAUTION:
        Changes to the
        prconfig.xml
        file can affect the operation
        and performance characteristics of your
        Pega Platform
        system. Make
        changes only after careful planning and after reviewing documentation or consulting with
        Pegasystems
        Global Customer Support.
      
      Dynamic System Settings can override prconfig.xml settings when your
          Pega Platform database is configured to retrieve its data using JNDI,
        and the prconfig.xml file for a given node has the following setting:
          <env name="initialization/settingsource" value="merged" />. See the
        appropriate deployment guide for your system for information on configuring JNDI in the
          context.xml file.
Edit the prconfig file on the application server.