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Failed to start ONS: Server time out Error When Multiple Databases Are Configured in UCP Application (Doc ID 2806085.1)

Last updated on JANUARY 22, 2024

Applies to:

JDBC - Version 21.1 and later
Universal Connection Pool - Version 21.1 and later
Information in this document applies to any platform.

Symptoms

Oacle Notification service (ONS) start fails when multiple databases are configured via Universal Connection Pool (UCP) in a Java application using OJDBC/UCP/ONS version 21c with JDK 11.



The issue does not occur when only one database is configured in UCP.


ERROR
-----------------------
2021-06-18T10:54:39.621 AM -0500 UCP WARNING seq-311,thread-1 oracle.ucp.logging.ClioSupport._log :::failed to start ONS: Server time out


Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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