APT_BUFFERING_POLICY

APT_BUFFERING_POLICY controls the buffering policy for all virtual data sets in all steps.

This environment variable is available in the InfoSphere® DataStage® Administrator, under the Parallel category. The variable has the following settings:

  • AUTOMATIC_BUFFERING (default). Buffer a data set only if necessary to prevent a data flow deadlock.
  • FORCE_BUFFERING. Unconditionally buffer all virtual data sets. Note that this can slow down processing considerably.
  • NO_BUFFERING. Do not buffer data sets. This setting can cause data flow deadlock if used inappropriately.