You can configure the following properties for the

Validation Environments

:

You can use a mapping parameter to indicate the execution environment. When you select the execution environment, click

Assign Parameter

. Configure a string parameter. Set the default value to Native or Hadoop.

When you validate the mapping, validation occurs for each engine that you choose in the

Validation Environments

. The validation log might contain validation errors specific to each engine. If the mapping is valid for at least one mapping, the mapping is valid. The errors for the other engines appear in the validation log as warnings. If the mapping is valid for multiple Hadoop engines, you can view the execution plan to determine which engine will run the job. You can view the execution plan in the

Data Viewer

view.

The following image shows validation errors for the Blaze, Spark, and Hive engines: