In the standard SAP system, if tRFC errors occur, a background job is generated to re-establish the connection. In certain circumstances this could result in a large number of background jobs being started that completely block background processing.
To cancel a background job if tRFC errors occur use program RSARFCEX to restart tRFC.
In ALE Customizing (transaction SALE), select a connection to change:
Create RFC Connections (SM59)
Choose Destination ® tRFC Options and select the option Suppress Background Job at Comm. Error.