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Informix Error -23519: CM error: Coserver already exists.

Cause and resolution

CM error: Coserver already exists.

A request to add a new coserver failed because the coserver with that ID is already in use by the current instance of the database server.

Recheck the coserver ID before proceeding.

Oninit® Troubleshooting Guidance

Reasons / Common Causes

-23519 fires when adding a coserver whose ID is already in use by the current database server instance — per the official guidance.

  1. The requested coserver ID already in use, per the official guidance — the direct, only cause.
Solutions / Resolution
  1. Recheck the coserver ID before proceeding, per the official guidance.
Examples
N/A

No specific triggering statement is documented beyond an ID collision.

Diagnostic Checks
  1. Check whether the requested coserver ID is already in use, and choose a different one.
Related Errors / Related Topics
  • -23518 — "CM error: No such coserver." The mirror-image error, on a coserver ID not found rather than an ID collision.

A coserver ID was already in use — check and choose a different ID.