tAmazonEMRListInstances Standard properties - 6.5

Amazon EMR

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Talend Documentation Team
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6.5
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Data Governance > Third-party systems > Amazon services (Integration) > Amazon EMR components
Data Quality and Preparation > Third-party systems > Amazon services (Integration) > Amazon EMR components
Design and Development > Third-party systems > Amazon services (Integration) > Amazon EMR components
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Talend Studio

These properties are used to configure tAmazonEMRListInstances running in the Standard Job framework.

The Standard tAmazonEMRListInstances component belongs to the Cloud family.

The component in this framework is available in all Talend products.

Basic settings

Access key and Secret key

Specify the access keys (the access key ID in the Access Key field and the secret access key in the Secret Key field) required to access the Amazon Web Services. For more information on AWS access keys, see Access keys (access key ID and secret access key).

To enter the secret key, click the [...] button next to the secret key field, and then in the pop-up dialog box enter the password between double quotes and click OK to save the settings.

Inherit credentials from AWS role

Select this check box to leverage the instance profile credentials. These credentials can be used on Amazon EC2 instances, and are delivered through the Amazon EC2 metadata service. To use this option, your Job must be running within Amazon EC2 or other services that can leverage IAM Roles for access to resources. For more information, see Using an IAM Role to Grant Permissions to Applications Running on Amazon EC2 Instances.

Assume role

Select this check box and specify the values for the following parameters used to create a new assumed role session.
  • Role ARN: the Amazon Resource Name (ARN) of the role to assume.

  • Role session name: an identifier for the assumed role session.

  • Session duration (minutes): the duration (in minutes) for which we want to have the assumed role session to be active.

For more information on assuming roles, see AssumeRole.

Region

Specify the AWS region by selecting a region name from the list or entering a region between double quotation marks (for example "us-east-1"). For more information about how to specify the AWS region, see Choose an AWS Region.

Filter master and core instances

Select this check box to ignore the master and core instance groups and list only the task instance groups.

Cluster id

Enter the ID of the cluster for which you want to list the instance groups.

Advanced settings

STS Endpoint

Select this check box and in the field displayed, specify the AWS Security Token Service endpoint, for example, sts.amazonaws.com, where session credentials are retrieved from.

This check box is available only when the Assume role check box is selected.

tStatCatcher Statistics

Select this check box to gather the Job processing metadata at the Job level as well as at each component level.

Global Variables

Global Variables

CURRENT_GROUP_ID: the ID of the current instance group. This is an After variable and it returns a string.

CURRENT_GROUP_NAME: the name of the current instance group. This is an After variable and it returns a string.

ERROR_MESSAGE: the error message generated by the component when an error occurs. This is an After variable and it returns a string. This variable functions only if the Die on error check box is cleared, if the component has this check box.

A Flow variable functions during the execution of a component while an After variable functions after the execution of the component.

To fill up a field or expression with a variable, press Ctrl + Space to access the variable list and choose the variable to use from it.

For further information about variables, see Talend Studio User Guide.

Usage

Usage rule

tAmazonEMRListInstances is usually used as a start component of a Job or Subjob.