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  1. Preface
  2. Understanding Pipeline Partitioning
  3. Partition Points
  4. Partition Types
  5. Pushdown Optimization
  6. Pushdown Optimization and Transformations
  7. Real-time Processing
  8. Commit Points
  9. Row Error Logging
  10. Workflow Recovery
  11. Stopping and Aborting
  12. Concurrent Workflows
  13. Grid Processing
  14. Load Balancer
  15. Workflow Variables
  16. Parameters and Variables in Sessions
  17. Parameter Files
  18. FastExport
  19. External Loading
  20. FTP
  21. Session Caches
  22. Incremental Aggregation
  23. Session Log Interface
  24. Understanding Buffer Memory
  25. High Precision Data

Advanced Workflow Guide

Advanced Workflow Guide

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The Integration Service and the Session Log Interface

The Integration Service and the Session Log Interface

When you set the ExportSessionLogLibName property of the Integration Service to the name of a shared library, the Integration Service performs the procedures defined in the shared library in addition to creating the event log files.
The Integration Service uses the shared library in the following manner:
  1. The Integration Service loads the shared library and calls the INFA_InitSessionLog() function before it logs the first event in the session.
  2. Each time the Integration Service logs an event to the session log file, it calls the INFA_OutputSessionLog() function to pass the message, codes, and session information to the shared library.
  3. When the session completes and the last event is logged, the Integration Service calls the INFA_EndSessionLog() and then unloads the shared library.
To ensure that the shared library can be correctly called by the Integration Service, follow the guidelines for writing the shared library.