Configuration File

What is configuration file? What does it contain? What is the use of it in Datastage?

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A configuration file contains the information about the nodes,Resource disk and the Resource scratch disk.The datastage parallel jobs run on the basis of the configuration specified in the configuration file.

Nodes : It idesntifies the number of nodes on which a parallel job can run.

Resource disk : Here a disk path is defined.The data files of the dataset are stored in the resource disk.

Resource scratch disk :  Here also a path to folder is defined.This path is used by the parallel job stages for buffering of the data when the parallel job runs.

The path to a configuration file is defined in the Datastage Administrator.The environment variable "APT_CONFIG_FILE" contains the path of the configuration file.

The configuration files have extension ".apt".

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