APT_CONFIG_FILE NODES setup

verify · Post by **verify** » Mon Jun 02, 2008 8:27 pm

Hi there,

How do you decide how many node config file to be used in particular DataStage Job? What are factors you need to consider?

ray.wurlod · Post by **ray.wurlod** » Mon Jun 02, 2008 8:46 pm

The main factor is the available processing resources (CPU, memory, disk space, network bandwidth). The next is the volume of data to be processed. In an ideal world a job with N nodes will process data in 1/N the time needed by one node. Provided, of course, that the hardware and operating system on which you are running has sufficient spare capacity to run N nodes. Optimum values are found empirically, and you can make good use of the Resource Estimation tool in accomplishing the same.