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Unable to initialize communication channel

Troubleshooting


Problem

Parallel job failing with: APT_Communicator::shmemInitBuffers: createMapFile (/tmp/apTvS33726337267c9b3f7c) failed: Operation not permitted on node

Symptom

The DataStage parallel job fails with the following error message:

Message: JobStart,0: Fatal Error: APT_Communicator::
shmemInitBuffers: createMapFile (/tmp/apTvS89348934d31ba588) failed:
Operation not permitted on node hostname.com
The most likely reasons for this are a system-wide limit on the number
of mmap'ed shared memory segments or that you have specified scratch
directories or a TMPDIR that is not local to this node (e. g. is an NFS
file system).

Message: JobProcessingLog,0: Fatal Error: Unable to initialize
communication channel on hostname.com. This is typically
caused by a configuration problem. Examples of typical problems
include:

  1. The temporary directory, identified by $TMPDIR and/or the scratch disks in your ORCHESTRATE configuration, is located on a non-local file system (e.g. mounted over NFS).
  2. The temporary directory is located on a file system with insufficient space.

[{"Product":{"code":"SSZJPZ","label":"IBM InfoSphere Information Server"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Component":"--","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF010","label":"HP-UX"},{"code":"PF016","label":"Linux"},{"code":"PF027","label":"Solaris"},{"code":"PF033","label":"Windows"}],"Version":"11.3;8.5;8.7;9.1","Edition":"","Line of Business":{"code":"LOB76","label":"Data Platform"}}]

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Document Information

Modified date:
25 April 2025

UID

swg21701077

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