Listing the instance groups in the Amazon EMR cluster
Configure the tAmazonEMRListInstances component and the tJava component to retrieve and display the ID and name information of all
instance groups in a running cluster.
instance groups in a running cluster.
-
Double-click the tAmazonEMRListInstances component to open its Basic settings view.
-
In the Access Key and Secret Key fields, enter the authentication credentials
required to access Amazon S3. -
Select the AWS region from the Region
drop-down list. In this example, it is Asia Pacific
(Tokyo). -
Clear the Filter master and core
instances check box to list all instance groups, including the
Master, Core, and Task type instance groups. -
In the Cluster id field, enter the ID
of the cluster for which to list the instance groups. In this example, the returned
value of the global variable CLUSTER_FINAL_ID of the previous
tAmazonEMRManage component is used. -
Double-click the tJava component to
open its Basic settings view.
-
In the Code field, enter the following
code to print the ID and Name information of each instance group in the
cluster.1234System.out.println("===== Instance Group =====");System.out.println("Instance Group ID: " + (String)globalMap.get("tAmazonEMRListInstances_1_CURRENT_GROUP_ID"));System.out.println("Instance Group Name: " + (String)globalMap.get("tAmazonEMRListInstances_1_CURRENT_GROUP_NAME"));
Document get from Talend https://help.talend.com
Thank you for watching.
Subscribe
Login
0 Comments