Table of Contents

Search

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

Developer Mapping Guide

Developer Mapping Guide

Overriding the Maximum Parallelism Value

Overriding the Maximum Parallelism Value

To override the maximum parallelism value, set maximum parallelism in the mapping run-time properties to an integer value greater than 1 and less than the value set for the Data Integration Service.
  1. Open the mapping.
  2. In the
    Properties
    view, click the
    Run-time
    tab.
  3. Select
    Native
    for the
    Execution Environment
    .
  4. For the
    Maximum Parallelism
    property, enter an integer value greater than 1 and less than the value set for the Data Integration Service.
    Or you can assign a user-defined parameter to the property, and then define the parameter value in a parameter set or a parameter file.
  5. To define a suggested parallelism value for a specific transformation in the mapping, enter an integer value greater than 1 for the transformation in the
    Suggested Parallelism
    section.
    The following image shows a mapping with an overridden maximum parallelism value and with the default suggested parallelism values for transformations:
    The maximum parallelism run-time property for the mapping is set to 5. In the Suggested Parallelism section, the Aggregator and Expression transformations have no suggested values.
  6. Save the mapping.
  7. To define an execution instances value for an Address Validator or for a Match transformation configured for identity match analysis, complete the following steps:
    1. Open the Address Validator or Match transformation.
    2. In the
      Advanced
      view, enter an integer value greater than 1 for the
      Execution Instances
      property.
    3. Save the transformation.

0 COMMENTS

We’d like to hear from you!