ModifyInstanceGroups modifies the number of nodes and configuration settings of an
instance group. The input parameters include the new target instance count
for the group and the instance group ID. The call will either succeed or fail
atomically.

C# |
ModifyInstanceGroupsResponse ModifyInstanceGroups( ModifyInstanceGroupsRequest request )

- request (ModifyInstanceGroupsRequest)
- Container for the necessary parameters to execute the ModifyInstanceGroups service method.

The response from the ModifyInstanceGroups service method, as returned by ElasticMapReduce.

Exception | Condition |
---|---|
InternalServerErrorException |
Indicates that an error occurred while processing the request and that the request
was not completed.
|