SAS/EIS Software: Administrator's Guide

Metabase Tuning

During application build- and run-time, information is frequently requested from the metabase. As applications are invoked, many elements of the application are cross-checked against the metabase registration to make sure that they still exist.

For applications that are built and tested and then moved into a production environment, application and data integrity is typically given by the controlled environment in which the applications run. A developer might decide to do without the cross-checks, and also to rely on cached metabase information, thus improving application performance by avoiding most metabase queries.

You can control these parameters by following these steps:

Invoke EIS and select Setup in the EIS Main Menu. In the SAS/EIS Setup window, select Build-/Run-time Options.
Select the Disable Data Integrity Checks check box to switch off the crosschecks at application invocation time.
Select the Use Metadata Cache to ensure that any access to metadata information is stored in a temporary list in memory and any subsequent access to the same data is retrieved from this list.
Select Save Metadata Cache to ensure that the temporary list is stored permanently in the catalog entry SASUSER.PARMS.MDCACHE.SLIST when the EIS session is closed.
Select Load Metadata Cache to ensure that when the SAS/EIS session starts the temporary list is initialized with the contents of the catalog entry SASUSER.PARMS.MDCACHE.SLIST.

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