Table of Contents

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  1. Preface
  2. Understanding Pipeline Partitioning
  3. Partition Points
  4. Partition Types
  5. Pushdown Optimization
  6. Pushdown Optimization 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
  26. POWERCENTERHELP

Advanced Workflow Guide

Advanced Workflow Guide

Troubleshooting Rank Caches

Troubleshooting Rank Caches

Use the information in this section to help troubleshoot caching for a Rank transformation.
The following memory allocation error appears in the session log when I run a session with an rank cache size greater than 4 GB and the Integration Service process runs on a Hewlett Packard 64-bit machine with a PA RISC processor:
FATAL 8/17/2006 5:12:21 PM node01_havoc *********** FATAL ERROR : Failed to allocate memory (out of virtual memory). *********** FATAL 8/17/2006 5:12:21 PM node01_havoc *********** FATAL ERROR : Aborting the DTM process due to memory allocation failure. ***********
By default, a 64-bit HP-UX machine with a PA RISC processor allocates up to 4 GB of memory for each process. If a session requires more than 4 GB of memory, increase the maximum data memory limit for the machine using the maxdsiz_64bit operating system variable. For more information about maxdsiz_64bit, see the following URL:


Updated July 04, 2018