Upgrade of a production stand-alone PolicyCenter server
A stand-alone server has configuration parameter
ClusteringEnabled set to false. The use of a rolling
upgrade is not possible on a stand-alone server. However, while some upgrade changes require a
full database upgrade, other upgrade changes do not require a full upgrade.
A full upgrade on a production PolicyCenter stand-alone server
causes the following behavior.
| Upgrade type | Example | Behavior |
|---|---|---|
| Full | Changing the value of a semi-permanent configuration parameter. PolicyCenter writes these kinds of changes to the application database. | If the flag for a full database upgrade is not set, the application server does
not start. If flag for a full database upgrade is set, the upgrade completes and PolicyCenter updates the Upgrade and Versions screen. |
| Supported changes | Changing the value of a general configuration parameter, one that is neither permanent nor semi-permanent. PolicyCenter reads these kinds of changes from configuration files. | It does not matter whether you set the flag for a full database upgrade. In any case, the application server starts without any errors or warnings and PolicyCenter updates the Upgrade and Versions screen. |