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Cleanup of Expired Application StateLocate this document in the navigation structure

You can schedule a cleanup job to periodically clean up application state records that have not been accessed for a long time.

Prerequisites

  • You have authorization role SAP_UI2_ADMIN assigned.
  • You are using SAP NetWeaver 7.31 or higher.

Context

The SAP Fiori launchpad uses application states to shorten long URLs and to enable users to navigate back in the browser history.

An application state is described by a list of parameters that define a specific point in an application to which a user has navigated. For example, these parameters may include filter values or application URL parameters.

The list of parameters defining an application state is stored on the front-end server, together with a unique key. To address an application state, the launchpad includes this unique key in the URL that is displayed in the browser's address bar. This makes it possible to have short URLs that reference huge numbers of parameters containing huge numbers of characters.

If a link containing an application state is shared or bookmarked, it can only be restored if the application state is still available on the server.

To avoid that too much storage space is consumed, you should regularly clean up application states using the program Cleanup Layered Repository Files (transaction /UIF/CLEAN_LREP). Since the last access and the total number of accesses are monitored, you can use these criteria to clean up application states which have never been restored or which have not been restored for a long time, for example within the last year.

You create a background job to run the cleanup program periodically on the front-end server. For more information, see Customizing for SAP NetWeaver, and choose Start of the navigation path UI Technologies Next navigation step SAP Fiori Next navigation step Data Administration Next navigation step Create Cleanup Jobs End of the navigation path.

Procedure

  1. Start Cleanup Layered Repository Files (transaction /UIF/CLEAN_LREP) in the ABAP system.
  2. Enter the following data:
    Option Description
    Maximum number of times read You can select the maximum number of read accesses that needs to be met for the application state to be deleted.

    Default value: 0

    Minimum number of days not accessed

    		 You can select the minimum number of days since the last access that needs to be met for the application state to be deleted.

    Default value: 365

    Example

    • The default selection cleans up records which are older than a year and have never been accessed.

    • A selection of Maximum number of times read="10" and Minimum number of days not accessed="1095" cleans up records which have been accessed at most 10 times in total, but have not been accessed within the last three years.

  3. Deselect the Test mode checkbox.
  4. Choose Execute.

Results

A list with the application state records that were deleted is shown.

A summary can be found in the Application Log: Display Logs (transaction SLG1) using object /UI2/BE (UI2 Backend Enablement: Application log).