Table of Contents

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  1. Preface
  2. Mappings
  3. Mapplets
  4. Mapping Parameters
  5. Where to Assign Parameters
  6. Mapping Outputs
  7. Generate a Mapping from an SQL Query
  8. Dynamic Mappings
  9. How to Develop and Run a Dynamic Mapping
  10. Dynamic Mapping Use Cases
  11. Mapping Administration
  12. Export to PowerCenter
  13. Import From PowerCenter
  14. Performance Tuning
  15. Pushdown Optimization
  16. Partitioned Mappings
  17. Developer Tool Naming Conventions

Developer Mapping Guide

Developer Mapping Guide

Maximum Parallelism

Maximum Parallelism

Maximum parallelism is valid for the native execution environment. Maximum parallelism refers to the maximum number of parallel threads that process a single mapping pipeline stage. An administrator sets maximum parallelism for the Data Integration Service to a value greater than one to enable mapping partitioning. The administrator sets the maximum parallelism in the Administrator tool.
The default maximum parallelism value for a mapping is Auto. Each mapping uses the maximum parallelism value defined for the Data Integration Service. You can change the default maximum parallelism value to define a maximum value for a particular mapping. When maximum parallelism is set to different integer values for the Data Integration Service and the mapping, the Data Integration Service uses the minimum value.
Default is Auto. Maximum is 64.
For more information about partitioning, see Partitioned Mappings.

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