Periodical Tasks

Periodical tasks that need to be performed frequently in order to ensure that the software runs smoothly with optimal performance.

In the context of SAP Gateway some cleanup jobs are necessary on the SAP Gateway hub system. You can find the relevant activities in the Implementation Guide (IMG): In transaction SPRO open the SAP Reference IMG and navigate to Start of the navigation path SAP NetWeaver Next navigation step SAP Gateway OData Channel Administration Cache Settings End of the navigation path .

The tasks need to be performed in regular intervals. The frequency specified depends on the load in your system and therefore may vary. A periodical cleanup is recommended to avoid a waste of disk and memory space. You might consider a frequency of once a week.

When activating SAP Gateway in your system landscape the following jobs are scheduled automatically:

SAP_IWFND_METERING_AGG
SAP_IWFND_METERING_DEL

These jobs are newly created if they are not yet available. Note that these two jobs are only carried out in one client, but they are also doing this for the other clients. This is the client in which SAP Gateway has been activated initially. If SAP Gateway is active in another client, then nothing else is done. If the jobs are not running periodically, the system will need more disk resources than expected. You can make them run again by switching SAP Gateway off and on again in the implementation guide (transaction SPRO). When deactivating SAP Gateway the jobs are deleted automatically, as long as SAP Gateway is not active in another client.

In addition to these automatically scheduled jobs we recommend you schedule job /IWFND/R_SM_CLEANUP which — among others — will help to clean up the Application Log Viewer (/IWFND/CLEANUP_APPSLOG) and the Error Log (/IWFND/SUPPORT_UTILITIES).

There are several cleanup scenarios for different use cases, for example:

Scenario	Description
/IWFND/CLEANUP_APPSLOG	Clean-up of Application Log
/IWFND/SUPPORT_UTILITIES	Support utilities
/IWCNT/ACTIVITY_CACHE_CLEANUP	Cache clean up for Activity
/IWCNT/CODELIST_CACHE_CLEANUP	Clean up Codelist Cache
/IWCNT/DOC_STORAGE_CAT_CLEANUP	Document Storage Category Cache Cleanup
/IWCNT/DOC_TYPE_STAT_CLEAN	Clean up Document Type Status Table
/IWCNT/RP_USER_SETTING	Delete Unused User Settings for a User
/IWCNT/VALUE_HLP_CACHE_CLEANUP	Cleans up Help Value Cache
/IWFND/DEVICE_MAMANGER	Cleanup for Device Manager
/IWFND/DOCUMENT_PUBLISHER	Document Publisher
/IWFND/OIL	OIL - Object ID List
/IWFND/QRC_AUTO	QRC - Query Result Cache - For Scheduler
/IWFND/ROLE_SYNC_ALL	Role Sync Cleanup - All
/IWFND/ROLE_SYNC_CAUTIOUS	Role Sync Cleanup - Cautious Method

Caching is available in the following places:

in the SAP Gateway hub system
in the client browser (and probably also in the internet proxy)

Note

For development we recommend that caching on the SAP Gateway hub system is disabled.