Big Data Management Administrator Guide

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MappingExecutionPlans

With the MappingExecutionPlans REST API, you can view the execution plan for Hadoop jobs.

To request information from the MappingExecutionPlans, use the following URL:

<RESTOperationsHubService_Host>:<RESTOperationsHubService_Port>/RestOperationsHub/services/v1/MappingService/MappingExecutionPlans('jobId')

The following table describes the required attributes in the MappingExecutionPlans Get URL:

Field	Type	Description
userName	String	Required. User name to connect to the domain. You can pass the input value as a header.
encryptedpassword	String	Required. Password for the user. Encrypt the password with the pmpasswd command line program. You can pass the input value as a header.
securityDomain	String	Optional. The security domain to which the domain user belongs. You can pass the input value as a header.
jobId	String	Required. The argument of the entity that contains the ID for the mappings. You can pass the input value as a query.

Return information for the MappingExecutionPlans for the specified Job ID.

The following table describes the MappingExecutionPlans attributes present in the body of the response for the Spark or Blaze environment:

Field	Type	Description
name	Integer	Name of the script.
content	String	For Spark, the Data Integration Service translates the mapping to a Scala program and an optional set of commands. The execution plan shows the commands and the Scala program code. For Blaze, the content comprises of session task, instances, and type.
depends	String	Tasks that the script depends on. Tasks include other scripts and Data Integration Service tasks, like the Start task.

The following table describes the MappingExecutionPlans attributes present in the content section of the body of the response for Blaze environment:

Field	Description
Session Task	Response can include three types of session tasks that are pre session task, main session task, and post session task. The main session task can contain Submappings.
Type	Type of the session task containing a set of segments and DAG vertices.
Instances	Transformation or object name.