You can validate a mapping to run in the native environment, Hadoop environment, or both. The Data Integration Service validates whether the mapping can run in the selected environment. You must validate the mapping for an environment before you run the mapping in that environment.

When you run a mapping in the native environment, the Data Integration Service runs the mapping from the Developer tool.

When you run a mapping in the Hadoop environment, the Data Integration Service converts the mapping task to an execution plan based on the engine. It could be a Blaze execution plan or Spark execution plan. In the Hadoop environment, the Data Integration Service converts the mapping to an execution plan that is run on a Hadoop cluster.