By default, each node has both the service and compute roles. You can update the roles of each node that you plan to add to the grid. Enable only the service role to dedicate a node to running the Data Integration Service process. Enable only the compute role to dedicate a node to running mappings.
At least one node in the grid must have both the service and compute roles to run ad hoc jobs, with the exception of profiles.
Before you can disable the service role on a node, you must shut down all application service processes running on the node and remove the node as a primary or back-up node for any application service. You cannot disable the service role on a gateway node.
In the Administrator tool, click the
Services and Nodes
In the Domain Navigator, select a node that you plan to add to the grid.
for the general properties.
Edit General Properties
dialog box appears.
Select or clear the service and compute roles to update the node role.
If you disabled the compute role, the
Disable Compute Role
dialog box appears. Perform the following steps:
Select one of the following modes to disable the compute role:
Complete. Allows jobs to run to completion before disabling the role.
Stop. Stops all jobs and then disables the role.
Abort. Tries to stop all jobs before aborting them and disabling the role.
Repeat the steps to update the node role for each node that you plan to add to the grid.