4 In the Hardware Configuration screen leave Uniform instance groups selected 5

4 in the hardware configuration screen leave uniform

This preview shows page 136 - 137 out of 395 pages.

4. In the Hardware Configuration screen, leave Uniform instance groups selected. 5. Choose the Network , and then choose the EC2 Subnet for your cluster. The subnet that you choose is associated with an Availability Group, which is listed with each subnet. For more information, see Configure Networking (p. 111) . Note Your account and region may give you the option to choose Launch into EC2-Classic for Network . If you choose that option, choose an EC2 Availability Zone rather than an EC2 Subnet . For more information, see Amazon EC2 and Amazon VPC in the Amazon EC2 User Guide for Linux Instances . 6. Within each Node type row: • Under Node type , if you want to change the default name of the instance group, click the pencil icon and then enter a friendly name. If want to remove the Task instance group, click the X icon. Choose Add task instance group to add additional Task instance groups. • Under Instance type , click the pencil icon and then choose the instance type you want to use for that node type. Important When you choose an instance type using the AWS Management Console, the number of vCPU shown for each Instance type is the number of YARN vcores for that instance type, not the number of EC2 vCPUs for that instance type. For more information on the number of vCPUs for each instance type, see Amazon EC2 Instance Types . • Under Instance type , click the pencil icon for Configurations and then edit the configurations for applications for each instance group. • Under Instance count , enter the number of instances to use for each node type. • Under Purchasing option, choose On-demand or Spot . If you choose Spot , select an option for the maximum price for Spot Instances. By default, Use on-demand as max price is selected. You can select Set max $/hr and then enter your maximum price. Availability Zone of the EC2 Subnet you chose is below the Maximum Spot price . Tip Mouse over the information tooltip for Spot to see the current Spot price for Availability Zones in the current region. The lowest Spot price is in green. You might want to use this information to change your EC2 Subnet selection. • Under Auto Scaling for Core and Task node types , choose the pencil icon, and then configure the automatic scaling options. For more information, see Using Automatic Scaling in Amazon EMR (p. 328) . 7. Choose Add task instance group as desired and configure settings as described in the previous step. 8. Choose Next , modify other cluster settings, and then launch the cluster. Use the AWS CLI to Create a Cluster with Uniform Instance Groups To specify the instance groups configuration for a cluster using the AWS CLI, use the create-cluster command along with the --instance-groups parameter. Amazon EMR assumes the On-Demand purchasing option unless you specify the BidPrice argument for an instance group. For examples of create-cluster commands that launch uniform instance groups with On-Demand Instances and a variety of cluster options, type aws emr create-cluster help at the command line, or see create- cluster in the AWS CLI Command Reference .
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  • Spring '12
  • LauraParker
  • Amazon Web Services, Amazon Elastic Compute Cloud

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