DS2 activities for SAS^® Real-Time Decision Manager have two different types of variables that can hold package instances: package variables and method variables. If you use method variables to hold package instances, there is a four-byte memory leak each time the method for your activity is called. This memory leak can cause deteriorating performance, and, eventually, a failure to complete activities.

In order to prevent the memory leak, use only package variables to hold package instances in your DS2 activity code, as in this example:

Incorrect:

Correct:

Click the Hot Fix tab in this note to access the hot fix for this issue.

Note that applying the hot fix changes the method signatures for tap_array and tap_table. The hot fix also adds a new tap_array method, decode. These changes to tap_array and tap_table can cause errors in your previously functioning activity code.

Operating System and Release Information

A fix for this issue for SAS Decision Services 5.5 is available at: