SAP SE
Configuration retention service for web application servers

Abstract:

Technologies are described for retaining configuration information for software applications during upgrades. For example, when an addon software package is deployed to a web application server running a main software platform, the configuration information for the addon software package can be preserved separately (e.g., independent of the common configuration file) and used later to restore the addon configuration information if needed. In some implementations, an addon presence file is used to store an entry for the addon software package. The entry identifies another file containing the configuration information for the addon software package. If the main software platform is upgraded resulting in the common configuration file being overwritten or replaced, then the addon configuration information can be added back to the common configuration file using the preserved configuration information.