Big Data Management Administrator Guide > Multiple Blaze Instances on a Cluster > Step 5. Set Mapping Preferences
  

Step 5. Set Mapping Preferences

Before you run the mapping in the Developer tool, configure the mapping to use the Data Integration Service and Hadoop connection you want to use to run the mapping.
    1. In the Developer tool, select Mapping > Preferences.
    2. Expand the Informatica node, and then select Data Integration Service.
    The following image shows the list of available services in the Preferences window:
    The Preferences dialog box displays in the left pane a list of elements. The Informatica node is expanded to show a list of Informatica elements, and Data Integration Service is selected. The right pane shows a list of available Data Integration Services.
    3. Select the Data Integration Service that you want to use, and then click OK.
    4. In the Properties tab of the mapping, select the Run-time sub-tab.
    5. In the Execution Environment area, set the Connection property to the Hadoop connection that you created.
    The following image shows the Connection property in the Properties tab:
    The image shows the Execution Envoronment section on the right side of the Run-time properties editor. The Hadoop connection property is highlighted in the image.