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Informix Error -23623: Backup Manager Error: Internal error: mt_create_thread failed.

Cause and resolution

Backup Manager Error: Internal error: mt_create_thread failed.

If this internal error recurs, note all circumstances and contact IBM Informix Technical Support.

Oninit® Troubleshooting Guidance

Reasons / Common Causes

-23623 is an internal error — per the official guidance, the mt_create_thread call failed.

  1. A failure in the internal mt_create_thread call, per the official guidance — no further named detail.
Solutions / Resolution
  1. If this internal error recurs, note all circumstances and contact IBM Informix Technical Support, per the official guidance.
Examples
N/A

No specific triggering statement is documented — this is reported as an internal error.

Diagnostic Checks
  1. Record the full sequence of events, and escalate to IBM Informix Technical Support if the error recurs.
Related Errors / Related Topics
  • -23622 — "Backup Manager Error: Internal error: mt_create_mutex failed." The same class of internal multi-threading-primitive failure, for mutex creation rather than thread creation.

The internal mt_create_thread call failed — contact IBM Informix Technical Support if it recurs.