Table of Contents

Search

  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. SAP BW Service
  19. Search Service
  20. System Services
  21. Test Data Manager Service
  22. Web Services Hub
  23. Application Service Upgrade
  24. Application Service Databases
  25. Connecting to Databases from Windows
  26. Connecting to Databases from UNIX
  27. Updating the DynamicSections Parameter of a DB2 Database

Supported Node Roles

Supported Node Roles

When a Data Integration Service grid runs jobs in separate remote processes, the nodes in the grid can contain the service role only, the compute role only, or both the service and compute roles.
A Data Integration Service grid that runs jobs in separate remote processes can contain nodes with the following roles:
Service role
A Data Integration Service process runs on each node with the service role. Service components within the Data Integration Service process run workflows and profiles, and perform mapping optimization and compilation.
Compute role
DTM processes run on each node with the compute role. The DTM processes run deployed mappings, mappings run by Mapping tasks within a workflow, and mappings converted from a profile.
Both service and compute roles
A Data Integration Service process and DTM processes run on each node with both the service and compute roles. At least one node with both service and compute roles is required to run ad hoc jobs, with the exception of profiles.
Ad hoc jobs include mappings run from the Developer tool or previews, scorecards, or drill downs on profile results run from the Developer tool or Analyst tool.
The Data Integration Service runs these job types in separate DTM processes on the local node.
In addition, nodes with both roles can complete all of the tasks that a node with the service role only or a node with the compute role only can complete. For example, a workflow can run on a node with the service role only or on a node with both the service and compute roles. A deployed mapping can run on a node with the compute role only or on a node with both the service and compute roles.
The following table lists the job types that run on nodes based on the node role:
Job Type
Service Role
Compute Role
Service and Compute Roles
Perform mapping optimization and compilation.
Yes
-
Yes
Run deployed mappings.
-
Yes
Yes
Run workflows.
Yes
-
Yes
Run mappings included in workflow Mapping tasks.
-
Yes
Yes
Run profiles.
Yes
-
Yes
Run mappings converted from profiles.
-
Yes
Yes
Run ad hoc jobs, with the exception of profiles, from the Analyst tool or the Developer tool.
-
-
Yes
If you associate a Content Management Service with the Data Integration Service to run mappings that read reference data, each node in the grid must have both the service and compute roles.