Troubleshooting for specific operating systems

Troubleshooting slow jobs that use data sets in cluster environments
InfoSphere DataStage jobs can sometimes become very slow over a period, but you can add environment variables to correct this problem.

Heap allocation errors with InfoSphere DataStage Parallel Jobs on AIX
You can correct heap allocation errors in several ways based on which version of InfoSphere DataStage you are running.

Node or host names cannot be found during parallel jobs on HP-UX Itanium systems
HP-UX Itanium systems have a default maximum lengths for node and host names, and truncated names can cause jobs to fail.

InfoSphere DataStage clients and Windows Data Execution Prevention (DEP) compatability
IBM InfoSphere DataStage clients crash when Data Execution Prevention (DEP) is enabled on Microsoft Windows platforms, or when the Microsoft Enhanced Mitigation Experience Toolkit (EMET) is installed.

InfoSphere DataStage Windows clients cannot authenticate with the InfoSphere Information Server
IBM InfoSphere DataStage clients installed on Microsoft Windows platforms cannot authenticate with the IBM InfoSphere Information Server sever when the server is using Transport Layer Security (TLS) protocols.