IBM Support

Too many open files error on Windows platform

Troubleshooting


Problem

DataStage Parallel job fails with error message "too many open files" when running on Windows platform

Symptom

In the DataStage job log, error messages seen are:
Item #: 867
Event ID: 2172
Timestamp: 2011-11-15 10:09:47
Type: Fatal
User Name: xxxxxxxxxxxxxxxxxxxxx
Message Id: IIS-DSEE-TOSO-00048
Message: APT_CombinedOperatorController(0),1: Fatal Error: Unexpected error in APT_TSort_ScratchFile::nextInputDescriptor: could not open file: E:\Data\DS_TEST\Scratchspace/tsortOggtbvxt; error: Too many open files

Followed by the following error message a few entries later:


Item #: 873
Event ID: 2178
Timestamp: 2011-11-15 10:09:50
Type: Fatal
User Name: xxxxxxxxxxxxxxxxxxxx
Message Id: IIS-DSEE-TOSO-00048
Message: APT_CombinedOperatorController(0),0: Fatal Error: Unexpected error in APT_TSort_ScratchFile::nextInputDescriptor: could not open file: E:\Data\DS_TEST\Scratchspace/tsort4qb08d3n; error: No such file or directory

[{"Product":{"code":"SSVSEF","label":"IBM InfoSphere DataStage"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Component":"--","Platform":[{"code":"PF033","label":"Windows"}],"Version":"8.5;8.1;8.1.0.1;8.1.0.2;8.0.1;8.0.1.1;8.0.1.2;8.0.1.3;8.5.0.1","Edition":"","Line of Business":{"code":"LOB76","label":"Data Platform"}}]

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Document Information

Modified date:
25 April 2025

UID

swg21572431