Informix Error -21606: Error reading from temporary text file.

Reasons / Common Causes

-21606 is an internal mkmessage error — per the official guidance, no user-actionable cause is documented beyond a read failure on its temporary text file.

1. A read failure on the temporary text file, 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. Check available disk space and temporary-directory health, and escalate to IBM Informix Technical Support if the error recurs.

Related Errors / Related Topics

• -21616 — "Temporary text file could not be created." A related temporary-file error, on creating the file rather than reading from an already-created one.
• -21617 — "Temporary text file could not be opened for read/write." A related temporary-file error, on opening the file rather than reading from an already-open one.

mkmessage failed to read from its temporary text file — check disk space and the temporary directory's health.