Forming Partition Groups With Resource Requirements
Forming Partition Groups With Resource Requirements
When you specify resource requirements for a mapping object, the DTM process creates partition groups based on the resources available on a particular node. For example, if the source files for the session are available on a particular node and you specified a resource requirement for the Source Qualifier transformation, the DTM process forms partition groups based on this requirement.
To meet the resource requirements of the Source Qualifier transformation, the DTM process creates a partition group from the reader threads. The Load Balancer distributes the reader threads to the node where the resource is available.
To cause the Load Balancer to distribute threads to nodes where required resources are available, you must configure the Integration Service to check resources.
The following image shows two partition groups distributed based on partitioning configuration and resource availability:
