Resizing the Amazon EMR cluster by adding a new task instance group

Configure the tAmazonEMRResize component to resize a running Amazon EMR cluster by adding a new task instance group.

1. Double-click the tAmazonEMRResize component to open its Basic settings view.
   
2. In the Access Key and Secret Key fields, enter the authentication credentials required to access Amazon S3.
3. From the Action drop-down list, select Add task instance group to resize the cluster by adding a new task instance group.
4. In the Cluster id field, enter the ID of the cluster to be resized. In this example, the returned value of the global variable CLUSTER_FINAL_ID of the previous tAmazonEMRManage component is used.
   Note that you can retrieve the global variable by pressing Ctrl + Space and selecting the relevant global variable from the list.
5. In the Group name field, enter the name of the task instance group to be added in the cluster. In this example, it is talend-doc-instance-group.
6. In the Instance count field, specify the number of the instances to be created.
7. From the Task instance type drop-down list, select the type of the instances to be created.