AWS CloudFormation
User Guide (API Version 2010-05-15)

Amazon EMR Cluster HadoopJarStepConfig

The HadoopJarStepConfig property type specifies a job flow step consisting of a JAR file whose main function will be executed. The main function submits a job for Hadoop to execute and waits for the job to finish or fail.

HadoopJarStepConfig is a property of the Amazon EMR Cluster StepConfig property type.

Syntax

To declare this entity in your AWS CloudFormation template, use the following syntax:

JSON

{ "Args" : [ String, ... ] , "Jar" : String, "MainClass" : String, "StepProperties" : [ KeyValue, ... ] }

YAML

Args - String Jar: String MainClass: String StepProperties - KeyValue

Properties

Args

A list of command line arguments passed to the JAR file's main function when executed.

Length Constraints: Minimum length of 0. Maximum length of 10280.

Pattern: [\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*

Required: No

Type: List of String values

Update requires: No interruption

Jar

A path to a JAR file run during the step.

Length Constraints: Minimum length of 0. Maximum length of 10280.

Pattern: [\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*

Required: Yes

Type: String

Update requires: No interruption

MainClass

The name of the main class in the specified Java file. If not specified, the JAR file should specify a Main-Class in its manifest file.

Length Constraints: Minimum length of 0. Maximum length of 10280.

Pattern: [\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*

Required: No

Type: String

Update requires: No interruption

StepProperties

A list of Java properties that are set when the step runs. You can use these properties to pass key value pairs to your main function.

Required: No

Type: List of Amazon EMR Cluster KeyValue property types

Update requires: No interruption

See Also

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