Table of Contents

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  1. Preface
  2. Analyst Service
  3. Content Management Service
  4. Data Integration Service
  5. Data Integration Service Architecture
  6. Data Integration Service Management
  7. Data Integration Service Grid
  8. Data Integration Service Applications
  9. Metadata Manager Service
  10. Model Repository Service
  11. PowerCenter Integration Service
  12. PowerCenter Integration Service Architecture
  13. High Availability for the PowerCenter Integration Service
  14. PowerCenter Repository Service
  15. PowerCenter Repository Management
  16. PowerExchange Listener Service
  17. PowerExchange Logger Service
  18. Reporting Service
  19. Reporting and Dashboards Service
  20. SAP BW Service
  21. Search Service
  22. System Services
  23. Test Data Manager Service
  24. Web Services Hub
  25. Application Service Upgrade
  26. Application Service Databases
  27. Connecting to Databases from Windows
  28. Connecting to Databases from UNIX
  29. Updating the DynamicSections Parameter of a DB2 Database

Persistent Lookup Cache

Persistent Lookup Cache

If a session uses a Lookup transformation, you can configure the transformation to use a persistent lookup cache. With this option selected, the PowerCenter Integration Service process saves the lookup cache to disk the first time it runs the session, and then uses this lookup cache during subsequent session runs. By default, the DTM creates the index and data files in the directory configured for the $PMCacheDir service process variable. If you do not name the files in the transformation properties, these files are named PMLKUP*.idx and PMLKUP*.dat.