Configuration of the JVM Parameters from the Command Line¶

In a host with graphical support, you can use the Denodo Control Center to change the parameters of the Java Virtual Machine (JVM) used to launch each Denodo server (see section Denodo Platform Configuration). However, this is not possible in a “headless” environment (i.e. without graphical support).

To change these parameters on a host without graphical support, follow these steps:

1. On each file of the column Configure File of the table below, the property java.env.DENODO_OPTS_START contains the parameters passed to the Java Runtime Environment (JRE) when launching each server.

   Note

   Escape the character : with the character \. E.g. -XX\:NewRatio\=4

2. To change the host name on which one of the components below listens to connection, edit the file of the column Configuration File and change the property Property to Modify.

   For example, for the Virtual DataPort server, edit <DENODO_HOME>/conf/vdp/VDBConfiguration.properties and change the value of com.denodo.vdb.vdbinterface.server.VDBManagerImpl.registryURL to denodo-dv1-prod.contoso.com.

3. Execute the script <DENODO_HOME>/bin/regenerateFiles.sh

   This script regenerates the scripts that launch each component.

The next time you launch any of the Denodo servers, they will run with the new parameters.

You only need to execute the script regenerateFiles.sh when you change the RMI host or the JVM properties.