What is rdisp/bufrefmode system parameter?

The sendon switch for the parameter rdisp/bufrefmode will force the SAP system

to log each change to buffered data in the table DDLOG on the database. By

setting the exeauto switch for the same parameter, you can force all SAP instances

to periodically check the validity of their locally buffered data against table

DDLOG. The periodicity for this check is given (in seconds) by the parameter

rdisp/bufreftime. Data found to be outdated in the buffers will be invalidated. The

parameter rdisp/bufreftime is usually set to values of 60s or 120s. Invalidation will

be carried out depending on the type of buffering used for the buffered data.

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