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Listener Log Intermittently Reports: < unknown connect data> and either * 12537 or * 12569 errors (Doc ID 1664901.1)

Last updated on SEPTEMBER 13, 2018

Applies to:

Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.

Goal

Intermittently, or repeatedly, the listener log contains messages such as:

Solution

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