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Informix Error -23518: CM error: No such coserver.

Cause and resolution

CM error: No such coserver.

An invalid coserver ID caused the failure of a request to acquire information about a named coserver, to add or delete a coserver, to add a dbspace on a coserver, or to read coserver information during startup.

Correct the name or ID of the coserver and resubmit the request. If necessary, contact IBM Informix Technical Support.

Oninit® Troubleshooting Guidance

Reasons / Common Causes

-23518 fires when an invalid coserver ID causes a coserver-related request to fail — per the official guidance, for information queries, add/delete, adding a dbspace on a coserver, or startup reads.

  1. An invalid coserver ID, per the official guidance — the direct, only cause.
Solutions / Resolution
  1. Correct the coserver's name or ID and resubmit the request, per the official guidance.
  2. Contact IBM Informix Technical Support if necessary.
Examples
N/A

No specific triggering statement is documented beyond an invalid coserver ID.

Diagnostic Checks
  1. Check the coserver name/ID against the actual configuration, and correct any mismatch.
Related Errors / Related Topics
  • -23519 — "CM error: Coserver already exists." The mirror-image error, on an ID collision when adding rather than an ID not found.

A CM request named a coserver ID that doesn't exist — correct the ID and resubmit.