Informix Error -9471: Database server connection failed.

Reasons / Common Causes

-9471 fires when a server-internal database connection attempt fails — per the official guidance.

1. An internal database connection failure, per the official guidance — no further named cause.

Solutions / Resolution

1. Contact IBM Informix Technical Support, per the official guidance.

Examples

N/A

No specific triggering statement is documented; this is an internal error.

Diagnostic Checks

1. Check online.log for accompanying detail, before escalating.

Related Errors / Related Topics

• -9470 — "Cannot establish JDBC connection for embedding application." A related internal connection error, specific to an embedding application.
• -9473 — "Connection to database failed." A related connection error, with a documented named cause (database existence/permissions) rather than being purely internal.
• -9474 — "Could not connect to database (%s)." A related internal connection error, naming the target database.

A server-internal database connection attempt failed — contact IBM Informix Technical Support.